
From nobody Mon Jan  5 13:12:39 2015
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Date: Mon, 5 Jan 2015 16:12:36 -0500
From: Jeffrey Haas <jhaas@pfrc.org>
To: Lizhenbin <lizhenbin@huawei.com>
Message-ID: <20150105211236.GF7224@pfrc>
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Subject: Re: [i2rs] Regarding Multicast Use Cases for I2RS
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Robin,

On Tue, Dec 23, 2014 at 07:18:14PM +0000, Lizhenbin wrote:
> Now multicast is an important service in the network such as IPTV, etc.
> But there are complex choice for multicast solutions including L2
> multicast vs. L3 multicast, public multicast vs. multicast VPN, multicast
> based on PIM/BGP/mLDP/P2MP TE/IGP/Ingress replication which make the
> multicast provision difficult. This may be simplified through the I2RS
> intefaces. Could we define the multicast usecase in I2RS WG? And how will
> we define the multicast usecase: enhancing the
> draft-ietf-i2rs-usecase-reqs-summary-00 to incorporate multicast use cases
> or proposing independent multicast use case draft?

Multicast is currently not in charter and our AD has given strong guidance
that we need to finish existing work before we pick up anything new.  That
said, nothing stops you or others from creating an individual submission to
discuss this work.  It may be some time before such a submission could be
adopted by the group though.

Speaking as an individual contributor, multicast provides a significant
number of interesting problems that all must be solved in order to provide
an I2RS-like interface.  For example, these might include:
- Interaction with interface/port yang modules.
- Definition of OIF-lists in YANG.
- Prefix filters (already a coordination issue IETF-wide) for managing
  traffic filtering.
- Interaction with underlying layer 2 technologies for that layer multicast.
  (And the requisite yang that would have to describe layer 2.)
- Interactions with MPLS technologies, most of which are still very new in
  YANG or work has yet to even begin.

While I believe such work is tractable, it is *quite* a bit of work.  It
does have the interesting property that such work may drive requirements for
several other technologies. 

If you feel up to that particular challege this early in IETF Yang work, I
look forward to seeing your drafts. 

-- Jeff


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Subject: [i2rs] FW: WebEx meeting invitation: I2RS Interim Jan 8th
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=20

The I2RS WG will hold an Interim on January 8th, 2014 at 10:00am =
=E2=80=93 11:30 am.=20

=20

The following is the tentative agenda

=20

1)      Status and Design team information  [5 minutes] =E2=80=93 Sue =
Hares=20

2)      Security Directorate feedback on I2RS problem statement and =
architecture [10 minutes] =E2=80=93 Sue Hares=20

3)      Discussion on Security feedback  [15 minutes]  =20

4)      Traceability as an addition to the architecture  [15 minutes] =
=E2=80=93 Joe Clarke

5)      Protocol discussion  [30 minutes] =20

6)      Status update on RIB Info draft and Yang model [15 minutes]

=20

=20

Sue Hares=20

=20



=20


=20

=20


I2RS Interim Jan 8th=20


Thursday, January 8, 2015=20


10:00 am -11:00am |  Eastern Standard Time (New York, GMT-05:00)  |  2 =
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=20

Webex:=20

https://ietf.webex.com/ietf/j.php?MTID=3Dmc8f9e812ff0dad1c580b3ae2d0edab9=
4

=20


=20

=20


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Meeting number:=20

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style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>The I2RS WG will hold an Interim on January 8<sup>th</sup>, 2014 at =
10:00am =E2=80=93 11:30 am. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
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D'>The following is the tentative agenda<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
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</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Status and Design team information =C2=A0[5 minutes] =E2=80=93 Sue =
Hares <o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo1'><![if =
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style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><span style=3D'mso-list:Ignore'>2)<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Security Directorate feedback on I2RS problem statement and =
architecture [10 minutes] =E2=80=93 Sue Hares <o:p></o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l0 level1 =
lfo1'><![if !supportLists]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><span style=3D'mso-list:Ignore'>3)<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Discussion on Security feedback =C2=A0[15 minutes] =
=C2=A0=C2=A0<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo1'><![if =
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</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Traceability as an addition to the architecture =C2=A0[15 minutes] =
=E2=80=93 Joe Clarke<o:p></o:p></span></p><p class=3DMsoListParagraph =
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</span></span></span><![endif]><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Status update on RIB Info draft and Yang model [15 =
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border=3D0 cellpadding=3D0 width=3D"100%" style=3D'width:100.0%'><tr><td =
style=3D'padding:0in 0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><b><span =
style=3D'font-family:"Arial","sans-serif";color:#4D4D4D'>I2RS Interim =
Jan 8th</span></b><span =
style=3D'font-family:"Arial","sans-serif";color:#4D4D4D'> =
<o:p></o:p></span></p></td></tr><tr><td style=3D'padding:0in 0in 0in =
0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>Thursday, January 8, 2015 <o:p></o:p></span></p></td></tr><tr><td =
style=3D'padding:0in 0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#1F497D'=
>10:00</span><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
> am&nbsp;</span><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#1F497D'=
>-11:00am</span><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;|&nbsp;&nbsp;Eastern Standard Time (New York, =
GMT-05:00)&nbsp;&nbsp;|&nbsp;&nbsp;2 hr</span><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#1F497D'=
><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Webex: <o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>https://ietf.webex.com/ietf/j.php?MTID=3Dmc8f9e812ff0dad1c580b3ae2d0ed=
ab94</span><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#1F497D'=
><o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr =
style=3D'height:15.0pt'><td style=3D'padding:0in 0in 0in =
0in;height:15.0pt'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;<o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D0 =
style=3D'width:0in;width:auto!important'><tr><td style=3D'padding:0in =
0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-family:"Arial","sans-serif";color:#00AFF9'><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dmc8f9e812ff0dad1c580b3ae=
2d0edab94"><b><span style=3D'color:#00AFF9;text-decoration:none'>Join =
WebEx meeting</span></b><span =
style=3D'color:#00AFF9;text-decoration:none'> =
</span></a><o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D0 =
style=3D'width:0in;width:auto!important'><tr><td style=3D'padding:0in =
3.75pt 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>Meeting number: <o:p></o:p></span></p></td><td style=3D'padding:0in 0in =
0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>647 163 325 <o:p></o:p></span></p></td></tr><tr><td =
style=3D'padding:0in 3.75pt 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>Meeting password:<o:p></o:p></span></p></td><td style=3D'padding:0in =
0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>jeffprotofun<o:p></o:p></span></p></td></tr></table><p =
class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr =
style=3D'height:15.0pt'><td style=3D'padding:0in 0in 0in =
0in;height:15.0pt'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;<o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr><td =
style=3D'padding:0in 0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><b><span =
style=3D'font-family:"Arial","sans-serif";color:#666666'>Join by =
phone</span></b><span =
style=3D'font-family:"Arial","sans-serif";color:#666666'><o:p></o:p></spa=
n></p></td></tr><tr><td style=3D'padding:0in 0in 0in 0in'><p =
class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><b><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>1-877-668-4493</span></b><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;Call-in toll free number =
(US/Canada)<o:p></o:p></span></p></td></tr><tr><td style=3D'padding:0in =
0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><b><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>1-650-479-3208</span></b><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;Call-in toll number =
(US/Canada)<o:p></o:p></span></p></td></tr><tr><td style=3D'padding:0in =
0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>Access code:&nbsp;647 163 325<o:p></o:p></span></p></td></tr><tr><td =
style=3D'padding:0in 0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
><a href=3D"http://www.webex.com/pdf/tollfree_restrictions.pdf"><span =
style=3D'font-size:10.0pt;color:#00AFF9;text-decoration:none'>Toll-free =
calling =
restrictions</span></a><o:p></o:p></span></p></td></tr></table><p =
class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr =
style=3D'height:15.0pt'><td style=3D'padding:0in 0in 0in =
0in;height:15.0pt'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;<o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr><td =
style=3D'padding:0in 0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#666666'=
><a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dme9fcda8b09bb18d1caf195d=
94b7dd507"><span style=3D'color:#00AFF9;text-decoration:none'>Add this =
meeting</span></a> to your =
calendar.<o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr =
style=3D'height:15.0pt'><td style=3D'padding:0in 0in 0in =
0in;height:15.0pt'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;<o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr><td =
style=3D'padding:0in 0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#666666'=
>Can't join the meeting? <a =
href=3D"https://ietf.webex.com/ietf/mc"><span =
style=3D'color:#00AFF9;text-decoration:none'>Contact support.</span></a> =
<o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr =
style=3D'height:7.5pt'><td style=3D'padding:0in 0in 0in =
0in;height:7.5pt'><p class=3DMsoNormal =
style=3D'mso-line-height-alt:7.5pt;mso-element:frame;mso-element-frame-hs=
pace:2.25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph=
;mso-element-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666'=
>&nbsp;<o:p></o:p></span></p></td></tr></table><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:11.5pt;font-family:"Arial","sans-serif";color:#666666;=
display:none'><o:p>&nbsp;</o:p></span></p><table class=3DMsoNormalTable =
border=3D0 cellpadding=3D0 width=3D525 style=3D'width:393.75pt'><tr><td =
style=3D'padding:0in 0in 0in 0in'><p class=3DMsoNormal =
style=3D'line-height:15.0pt;mso-element:frame;mso-element-frame-hspace:2.=
25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-el=
ement-anchor-horizontal:column;mso-height-rule:exactly'><span =
style=3D'font-size:9.0pt;font-family:"Arial","sans-serif";color:#A0A0A0'>=
IMPORTANT NOTICE: Please note that this WebEx service allows audio and =
other information sent during the session to be recorded, which may be =
discoverable in a legal matter. By joining this session, you =
automatically consent to such recordings. If you do not consent to being =
recorded, discuss your concerns with the host or do not join the =
session.<o:p></o:p></span></p></td></tr></table></td></tr></table></td></=
tr></table><p class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
------=_NextPart_001_0075_01D02933.82F74B20--

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(US/Canada) \n1-650-479-3208 Call-in toll number (US/Canada)\nAccess =
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On Mon, Jan 05, 2015 at 10:03:58PM -0500, Susan Hares wrote:
> The I2RS WG will hold an Interim on January 8th, 2014 at 10:00am ??? 11:30 am. 

Just a note on the .ics invite associate with the meeting: It starts at
9:30, but the interim starts at 10.  This is to give presenters time to join
the meeting and test both their microphone and any remote presentation
abilities they may require.

-- Jeff 


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Subject: Re: [i2rs] Regarding Multicast Use Cases for I2RS
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Hi Jeff,

On Mon, Jan 5, 2015 at 3:12 PM, Jeffrey Haas <jhaas@pfrc.org> wrote:
> Robin,
>
> On Tue, Dec 23, 2014 at 07:18:14PM +0000, Lizhenbin wrote:
>> Now multicast is an important service in the network such as IPTV, etc.
>> But there are complex choice for multicast solutions including L2
>> multicast vs. L3 multicast, public multicast vs. multicast VPN, multicast
>> based on PIM/BGP/mLDP/P2MP TE/IGP/Ingress replication which make the
>> multicast provision difficult. This may be simplified through the I2RS
>> intefaces. Could we define the multicast usecase in I2RS WG? And how will
>> we define the multicast usecase: enhancing the
>> draft-ietf-i2rs-usecase-reqs-summary-00 to incorporate multicast use cases
>> or proposing independent multicast use case draft?
>
> Multicast is currently not in charter and our AD has given strong guidance
> that we need to finish existing work before we pick up anything new.  That
> said, nothing stops you or others from creating an individual submission to
> discuss this work.  It may be some time before such a submission could be
> adopted by the group though.
>
> Speaking as an individual contributor, multicast provides a significant
> number of interesting problems that all must be solved in order to provide
> an I2RS-like interface.  For example, these might include:
> - Interaction with interface/port yang modules.
> - Definition of OIF-lists in YANG.
> - Prefix filters (already a coordination issue IETF-wide) for managing
>   traffic filtering.
> - Interaction with underlying layer 2 technologies for that layer multicast.
>   (And the requisite yang that would have to describe layer 2.)
> - Interactions with MPLS technologies, most of which are still very new in
>   YANG or work has yet to even begin.
>
> While I believe such work is tractable, it is *quite* a bit of work.  It
> does have the interesting property that such work may drive requirements for
> several other technologies.
>
> If you feel up to that particular challege this early in IETF Yang work, I
> look forward to seeing your drafts.

I have no issue on this decision.

You mentioned YANG three times above, that's where I have a question.
I checked i2rs charter, it does not even mention YANG.
My question is why YANG models became so essential, is it because they
will be the way i2rs solution is developed?
How could this be a solution by rewriting the protocol, e.g. bgp
procedures in YANG format?

A followup question: how can IESG evaluate a thousand or more line YANG program?

I'll appreciate if you could shed some light into this.

Regards,

Behcet

>
> -- Jeff
>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs


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Subject: Re: [i2rs] Regarding Multicast Use Cases for I2RS
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Behcet,

On Tue, Jan 06, 2015 at 11:49:18AM -0600, Behcet Sarikaya wrote:
> You mentioned YANG three times above, that's where I have a question.
> I checked i2rs charter, it does not even mention YANG.

We're remiss in getting our charter updated, and I believe Sue and I will be
discussing that this afternoon.  There had been a decision middle of last
year that we would be pursuing yang as our modeling language and
netconf/restconf as our protocol.  Recent analysis of the suitability of
netconf for our use cases has shown it's not the best fit and we appear to
be moving to restconf.

> How could this be a solution by rewriting the protocol, e.g. bgp
> procedures in YANG format?

We wouldn't rewrite BGP into yang.  We'd write yang modules for managing
I2RS behaviors for BGP.  In some cases, these may involve extending the yang
modules for BGP that are maintained by other groups such as IDR.

> A followup question: how can IESG evaluate a thousand or more line YANG program?

I think your comment is confused, but please also see the discussion on
ietf@ietf.org regarding a third RTG area director. :-)

-- Jeff


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On 06/01/2015 1:03 PM, Jeffrey Haas wrote:
>> A followup question: how can IESG evaluate a thousand or more line YANG program?
> I think your comment is confused, but please also see the discussion on
> ietf@ietf.org regarding a third RTG area director. :-)

I don't think this comment is confused at all.  It is clear to me that
the present approach to IETF last call at the IESG level (i.e., all the
Area Directors reading the document) is not going to be particularly
effective when the I-D consists of 1000 lines of Yang code.  This is
quite independent of the number of RTG area directors...

I believe that the WG chairs who are involved in Yang models at any
level need to signal this issue to their Area Director(s), if this has
not already been done.

  Bill

-- 
Dr. J.W. Atwood, Eng.             tel:   +1 (514) 848-2424 x3046
Distinguished Professor Emeritus  fax:   +1 (514) 848-2830
Department of Computer Science
   and Software Engineering
Concordia University EV 3.185     email:william.atwood@concordia.ca
1455 de Maisonneuve Blvd. West    http://users.encs.concordia.ca/~bill
Montreal, Quebec Canada H3G 1M8


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From: Alia Atlas <akatlas@gmail.com>
To: William Atwood <william.atwood@concordia.ca>
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Subject: Re: [i2rs] Regarding Multicast Use Cases for I2RS
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Hi Bill,

On Tue, Jan 6, 2015 at 1:47 PM, William Atwood <william.atwood@concordia.ca>
wrote:

>
>
> On 06/01/2015 1:03 PM, Jeffrey Haas wrote:
> >> A followup question: how can IESG evaluate a thousand or more line YANG
> program?
> > I think your comment is confused, but please also see the discussion on
> > ietf@ietf.org regarding a third RTG area director. :-)
>
> I don't think this comment is confused at all.  It is clear to me that
> the present approach to IETF last call at the IESG level (i.e., all the
> Area Directors reading the document) is not going to be particularly
> effective when the I-D consists of 1000 lines of Yang code.  This is
> quite independent of the number of RTG area directors...
>
> I believe that the WG chairs who are involved in Yang models at any
> level need to signal this issue to their Area Director(s), if this has
> not already been done.
>

Do you have recommendations on how the reviews should be done?  Obviously,
verifying that the YANG models compile and having the WG and YANG experts
do a review is quite useful and important beforehand.   The trick with this
is
frequently getting the semantics and details right; obviously, we're all
used to
doing long code reviews too.

Regards,
Alia



>   Bill
>
> --
> Dr. J.W. Atwood, Eng.             tel:   +1 (514) 848-2424 x3046
> Distinguished Professor Emeritus  fax:   +1 (514) 848-2830
> Department of Computer Science
>    and Software Engineering
> Concordia University EV 3.185     email:william.atwood@concordia.ca
> 1455 de Maisonneuve Blvd. West    http://users.encs.concordia.ca/~bill
> Montreal, Quebec Canada H3G 1M8
>
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Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">Hi B=
ill,</div><div class=3D"gmail_quote"><br></div><div class=3D"gmail_quote">O=
n Tue, Jan 6, 2015 at 1:47 PM, William Atwood <span dir=3D"ltr">&lt;<a href=
=3D"mailto:william.atwood@concordia.ca" target=3D"_blank">william.atwood@co=
ncordia.ca</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span cl=
ass=3D""><br>
<br>
On 06/01/2015 1:03 PM, Jeffrey Haas wrote:<br>
&gt;&gt; A followup question: how can IESG evaluate a thousand or more line=
 YANG program?<br>
&gt; I think your comment is confused, but please also see the discussion o=
n<br>
&gt; <a href=3D"mailto:ietf@ietf.org">ietf@ietf.org</a> regarding a third R=
TG area director. :-)<br>
<br>
</span>I don&#39;t think this comment is confused at all.=C2=A0 It is clear=
 to me that<br>
the present approach to IETF last call at the IESG level (i.e., all the<br>
Area Directors reading the document) is not going to be particularly<br>
effective when the I-D consists of 1000 lines of Yang code.=C2=A0 This is<b=
r>
quite independent of the number of RTG area directors...<br>
<br>
I believe that the WG chairs who are involved in Yang models at any<br>
level need to signal this issue to their Area Director(s), if this has<br>
not already been done.<br></blockquote><div><br></div><div>Do you have reco=
mmendations on how the reviews should be done?=C2=A0 Obviously,</div><div>v=
erifying that the YANG models compile and having the WG and YANG experts</d=
iv><div>do a review is quite useful and important beforehand. =C2=A0 The tr=
ick with this is=C2=A0</div><div>frequently getting the semantics and detai=
ls right; obviously, we&#39;re all used to</div><div>doing long code review=
s too.</div><div><br></div><div>Regards,</div><div>Alia=C2=A0</div><div><br=
></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0=
 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
=C2=A0 Bill<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
--<br>
Dr. J.W. Atwood, Eng.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0tel:=
=C2=A0 =C2=A0<a href=3D"tel:%2B1%20%28514%29%20848-2424%20x3046" value=3D"+=
15148482424">+1 (514) 848-2424 x3046</a><br>
Distinguished Professor Emeritus=C2=A0 fax:=C2=A0 =C2=A0<a href=3D"tel:%2B1=
%20%28514%29%20848-2830" value=3D"+15148482830">+1 (514) 848-2830</a><br>
Department of Computer Science<br>
=C2=A0 =C2=A0and Software Engineering<br>
Concordia University EV 3.185=C2=A0 =C2=A0 =C2=A0<a href=3D"mailto:email%3A=
william.atwood@concordia.ca">email:william.atwood@concordia.ca</a><br>
1455 de Maisonneuve Blvd. West=C2=A0 =C2=A0 <a href=3D"http://users.encs.co=
ncordia.ca/~bill" target=3D"_blank">http://users.encs.concordia.ca/~bill</a=
><br>
Montreal, Quebec Canada H3G 1M8<br>
</font></span><div class=3D"HOEnZb"><div class=3D"h5"><br>
_______________________________________________<br>
i2rs mailing list<br>
<a href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/i2rs" target=3D"_blank">ht=
tps://www.ietf.org/mailman/listinfo/i2rs</a><br>
</div></div></blockquote></div><br></div></div>

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From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
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On Tue, Jan 06, 2015 at 01:03:28PM -0500, Jeffrey Haas wrote:
> 
> > A followup question: how can IESG evaluate a thousand or more line YANG program?
> 
> I think your comment is confused, but please also see the discussion on
> ietf@ietf.org regarding a third RTG area director. :-)
>

Big data models	have happened in the past:

$ wc -l RMON-MIB RMON2-MIB
    3952 RMON-MIB
    6019 RMON2-MIB

Even in routing:

$ wc -l BGP4-MIB OSPFV3-MIB
    1298 BGP4-MIB
    4241 OSPFV3-MIB

In addition, things do not have to be monolithic. That said, it is a
good idea to try to keep it simple, stupid.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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From: Behcet Sarikaya <sarikaya2012@gmail.com>
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On Tue, Jan 6, 2015 at 1:44 PM, Juergen Schoenwaelder
<j.schoenwaelder@jacobs-university.de> wrote:
> On Tue, Jan 06, 2015 at 01:03:28PM -0500, Jeffrey Haas wrote:
>>
>> > A followup question: how can IESG evaluate a thousand or more line YANG program?
>>
>> I think your comment is confused, but please also see the discussion on
>> ietf@ietf.org regarding a third RTG area director. :-)
>>
>
> Big data models have happened in the past:
>
> $ wc -l RMON-MIB RMON2-MIB
>     3952 RMON-MIB
>     6019 RMON2-MIB
>
> Even in routing:
>
> $ wc -l BGP4-MIB OSPFV3-MIB
>     1298 BGP4-MIB
>     4241 OSPFV3-MIB
>

So you are saying that these are MIBs in Yang format?

I see a bgp info model and a data model.
I am confused.



> In addition, things do not have to be monolithic. That said, it is a
> good idea to try to keep it simple, stupid.


+1

Regards,

Behcet
>
> /js
>
> --
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
> Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>
>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs


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To: Kwang-koog Lee <kwangkooglee@gmail.com>, ramki Krishnan <ramk@Brocade.com>
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Subject: Re: [i2rs] WG Adoption call for draft-clarke-i2rs-traceability-03 from 11/24 to 12/9/14
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On 11/27/14 1:31 AM, Kwang-koog Lee wrote:
> Hi.
>
> I also read this document and the adoption of working group document is
> essential.
>
> Like us, many operators agree that SDN-based approach can reduce
> operational costs (the amount is depending on telco's infrastructures)
> and provide a base to build new business models on top of the
> software-based framework. But, SDN-based control technology is not still
> matured solution to control all functions of network elements, so the
> framework can be frequently changed for any updated functions and fixing
> bugs anytime. In such a case, operators may face with exceptional cases
> that they cannot know and recognize. If there’s no support of such
> traceability, many operators have difficulties for troubleshoot. So, the
> traceability which records logs in terms of SDN-based control
> transactions and retrieves some status of I2RS-based service models in
> network elements is essential.
>
> After the adoption of the working group document, I think the service
> model for the traceability itself is also needed (it includes some
> parameters for logs such as log policy, level, file size, and so on.)
> And, as the trace log field, service model name might be added.

Kwang-koog Lee, happy new year.  Thanks for your support and feedback. 
Is there a specific Service Model for traceability you had in mind?  Are 
you referring to the syslog YANG module?  I'm trying to make sure we 
account for all the feedback.  Thanks.

Joe

>
> Thanks.
> Kwang-koog Lee
>
>> 2014. 11. 27., 오전 7:11, ramki Krishnan <ramk@Brocade.com
>> <mailto:ramk@Brocade.com>> 작성:
>>
>> Support.
>> Thanks,
>> Ramki
>> *From:*i2rs [mailto:i2rs-bounces@ietf.org]*On Behalf Of*Susan Hares
>> *Sent:*Monday, November 24, 2014 9:03 PM
>> *To:*i2rs@ietf.org <mailto:i2rs@ietf.org>
>> *Cc:*'Jeffrey Haas'; 'Alia Atlas'
>> *Subject:*[i2rs] WG Adoption call for
>> draft-clarke-i2rs-traceability-03 from 11/24 to 12/9/14
>> This is to begin a 2 week adoption call for
>> draft-clarke-i2rs-traceability-03.  Please include in your comments an
>> indication of “support” or “no support.”
>> Thank you,
>> Sue Hares and Jeff Haas
>> _______________________________________________
>> i2rs mailing list
>> i2rs@ietf.org <mailto:i2rs@ietf.org>
>> https://www.ietf.org/mailman/listinfo/i2rs
>
>
>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs
>


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Subject: Re: [i2rs] Regarding Multicast Use Cases for I2RS
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On Tue, Jan 06, 2015 at 01:49:37PM -0600, Behcet Sarikaya wrote:
> On Tue, Jan 6, 2015 at 1:44 PM, Juergen Schoenwaelder
> <j.schoenwaelder@jacobs-university.de> wrote:
> > On Tue, Jan 06, 2015 at 01:03:28PM -0500, Jeffrey Haas wrote:
> >>
> >> > A followup question: how can IESG evaluate a thousand or more line YANG program?
> >>
> >> I think your comment is confused, but please also see the discussion on
> >> ietf@ietf.org regarding a third RTG area director. :-)
> >>
> >
> > Big data models have happened in the past:
> >
> > $ wc -l RMON-MIB RMON2-MIB
> >     3952 RMON-MIB
> >     6019 RMON2-MIB
> >
> > Even in routing:
> >
> > $ wc -l BGP4-MIB OSPFV3-MIB
> >     1298 BGP4-MIB
> >     4241 OSPFV3-MIB
> >
> 
> So you are saying that these are MIBs in Yang format?

No. But an argument that the IESG is not able to process 'a thousand
or more line YANG' seems a bit questionable given that they were able
to process data models of thousand of lines in the past.

/js
 
-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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Hi Russ,

Thanks for the review.  Responses in-line.

On Fri, Dec 12, 2014 at 9:53 AM, Russ Housley <housley@vigilsec.com> wrote:

> I am the assigned Gen-ART reviewer for this draft. For background on
> Gen-ART, please see the FAQ at
> <http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>.
>
> This review is in response to a request for early Gen-ART review.
>
> Document: draft-ietf-i2rs-problem-statement-04
> Reviewer: Russ Housley
> Review Date: 2014-12-11
> IETF LC End Date: unknown
> IESG Telechat date: unknown
>
> Summary: Almost Ready.
>
> Major Concerns:
>
> Section 5 says, "Data written can be owned by different I2RS clients."
> The intended consequences are unclear.  I assume that the data written
> by one client cannot be rewritten by another client.  However, I can
> imagine some situations where the same data object might be written by
> more than one client at different times.  Please add some language to
> say whether this situation is within scope or not.
>

It is possible for the same data object to be written by more than one
client
at different times; conflicts are resolved by priority.   The details of
how this
are handled are described in draft-ietf-i2rs-architecture, which, quite
reasonably,
you many not have read.

I have changed the text to read:


" Data written can be owned by different I2RS clients at different times;
data
may even be overwritten by a different I2RS client.  The details of how this
should be handled are described in [draft-ietf-i2rs-architecture]."


Section 5 includes a requirement for multi-channel.  I would expect
> policy to dictate that some requests, especially ones that impact the
> whole router, come from a specific source.  This might require that
> the request arrive on a particular port or that it be authenticated in
> a particular manner.  Can more be said about the policy controls here?
>

In the problem statement?  We do have "Secure Control: Any ability to
manipulate routing state must be subject to authentication and
authorization.
Such communications must also have its integrity protected"

It's important for most writable state.  I could add a reference to the
architecture
again, but I'm not convinced that it is needed.  These are different
aspects that
need to pull together into a single protocol - and the secure control with
associated
policy is definitely part of that.


> Section 8 seems very thin to me.  There are some lessons from MIBs
> documented here: www.ops.ietf.org/mib-security.html.  I think that
> some of this extrapolates to this document, but I do not think that
> a pointer to those guidelines is the best way forward.
>

You are right.  I will add a reference to draft-ietf-i2rs-architecture,
which has an
extensive section discussing security.  I've pulled a couple key concepts
from there
as well - since I think they are worth highlighting.

"Security is a key aspect of any protocol that allows state
      installation and extracting of detailed router state.  The
      security considerations are discussed in
[draft-ietf-i2rs-architecture].
      Briefly, the I2RS Agent
      is assumed to have a separate authentication and authorization
      channel by which it can validate both the identity and the
      permissions associated with an I2RS Client.  Mutual
      authentication between the I2RS Agent and I2RS Client is
      required.  Different levels of integrity, confidentiality, and
      replay protection are relevant for different aspects of I2RS."

Minor Concerns:
>
> The document talks about the IESG statement issued on 2 March 2014.
> Please add a reference, which is probably best done with a URL.
>

Done


> Section 5 says that the ability to manipulate routing controls is
> "subject to authentication and authorization."  This is highly desirable.
> Can we go a little bit further?  Is it like root on a Unix box, or is
> the authorization more granular?  Are there known roles that must be
> supported?
>

It is intended to be more granular and the expectation is that there are
multiple roles - but the details of those roles aren't defined in the
problem-statement
or even the architecture.  Given the updated security considerations
section,
I'd rather not specify too much here.


> Other Comments:
>
> Section 5 says: "Such communications must also have its integrity
> protected."  I do not know how to do authentication without also
> providing integrity, so this is really implied by the previous
> sentence.  That said, I suggest the following wording: "Such
> communications must be integrity protected."
>

Sure - change made.

I'll publish an updated version very soon (today/tomorrow) after I've dealt
with
outstanding comments.

Thanks again for your review!
Alia

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<div dir=3D"ltr">Hi Russ,<div><br></div><div>Thanks for the review.=C2=A0 R=
esponses in-line.<br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Fri, Dec 12, 2014 at 9:53 AM, Russ Housley <span dir=3D"ltr">&lt;<a =
href=3D"mailto:housley@vigilsec.com" target=3D"_blank">housley@vigilsec.com=
</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin=
:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204)=
;border-left-style:solid;padding-left:1ex">I am the assigned Gen-ART review=
er for this draft. For background on<br>
Gen-ART, please see the FAQ at<br>
&lt;<a href=3D"http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq" tar=
get=3D"_blank">http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq</a>&=
gt;.<br>
<br>
This review is in response to a request for early Gen-ART review.<br>
<br>
Document: draft-ietf-i2rs-problem-statement-04<br>
Reviewer: Russ Housley<br>
Review Date: 2014-12-11<br>
IETF LC End Date: unknown<br>
IESG Telechat date: unknown<br>
<br>
Summary: Almost Ready.<br>
<br>
Major Concerns:<br>
<br>
Section 5 says, &quot;Data written can be owned by different I2RS clients.&=
quot;<br>
The intended consequences are unclear.=C2=A0 I assume that the data written=
<br>
by one client cannot be rewritten by another client.=C2=A0 However, I can<b=
r>
imagine some situations where the same data object might be written by<br>
more than one client at different times.=C2=A0 Please add some language to<=
br>
say whether this situation is within scope or not.<br></blockquote><div><br=
></div><div>It is possible for the same data object to be written by more t=
han one client</div><div>at different times; conflicts are resolved by prio=
rity. =C2=A0 The details of how this=C2=A0</div><div>are handled are descri=
bed in draft-ietf-i2rs-architecture, which, quite reasonably,=C2=A0</div><d=
iv>you many not have read. =C2=A0=C2=A0</div><div><br></div><div>I have cha=
nged the text to read:</div><div><div><br></div><div><br></div><div>&quot; =
Data written can be owned by different I2RS clients at different times; dat=
a=C2=A0</div><div>may even be overwritten by a different I2RS client.=C2=A0=
 The details of how this</div><div>should be handled are described in [draf=
t-ietf-i2rs-architecture].&quot;</div></div><div><br></div><div><br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;pa=
dding-left:1ex">
Section 5 includes a requirement for multi-channel.=C2=A0 I would expect<br=
>
policy to dictate that some requests, especially ones that impact the<br>
whole router, come from a specific source.=C2=A0 This might require that<br=
>
the request arrive on a particular port or that it be authenticated in<br>
a particular manner.=C2=A0 Can more be said about the policy controls here?=
<br></blockquote><div><br></div><div>In the problem statement?=C2=A0 We do =
have &quot;Secure Control: Any ability to=C2=A0</div><div>manipulate routin=
g state must be subject to authentication and authorization. =C2=A0</div><d=
iv>Such communications must also have its integrity protected&quot;=C2=A0</=
div><div><br></div><div>It&#39;s important for most writable state.=C2=A0 I=
 could add a reference to the architecture</div><div>again, but I&#39;m not=
 convinced that it is needed.=C2=A0 These are different aspects that</div><=
div>need to pull together into a single protocol - and the secure control w=
ith associated</div><div>policy is definitely part of that.</div><div>=C2=
=A0<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-=
style:solid;padding-left:1ex">
Section 8 seems very thin to me.=C2=A0 There are some lessons from MIBs<br>
documented here: <a href=3D"http://www.ops.ietf.org/mib-security.html" targ=
et=3D"_blank">www.ops.ietf.org/mib-security.html</a>.=C2=A0 I think that<br=
>
some of this extrapolates to this document, but I do not think that<br>
a pointer to those guidelines is the best way forward.<br></blockquote><div=
><br></div><div>You are right.=C2=A0 I will add a reference to draft-ietf-i=
2rs-architecture, which has an=C2=A0</div><div>extensive section discussing=
 security.=C2=A0 I&#39;ve pulled a couple key concepts from there</div><div=
>as well - since I think they are worth highlighting.</div><div><br></div><=
div>&quot;Security is a key aspect of any protocol that allows state</div><=
div>=C2=A0 =C2=A0 =C2=A0 installation and extracting of detailed router sta=
te.=C2=A0 The</div><div>=C2=A0 =C2=A0 =C2=A0 security considerations are di=
scussed in [draft-ietf-i2rs-architecture]. =C2=A0</div><div>=C2=A0 =C2=A0 =
=C2=A0 Briefly, the I2RS Agent</div><div>=C2=A0 =C2=A0 =C2=A0 is assumed to=
 have a separate authentication and authorization</div><div>=C2=A0 =C2=A0 =
=C2=A0 channel by which it can validate both the identity and the</div><div=
>=C2=A0 =C2=A0 =C2=A0 permissions associated with an I2RS Client.=C2=A0 Mut=
ual</div><div>=C2=A0 =C2=A0 =C2=A0 authentication between the I2RS Agent an=
d I2RS Client is</div><div>=C2=A0 =C2=A0 =C2=A0 required.=C2=A0 Different l=
evels of integrity, confidentiality, and</div><div>=C2=A0 =C2=A0 =C2=A0 rep=
lay protection are relevant for different aspects of I2RS.&quot;</div><div>=
<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-sty=
le:solid;padding-left:1ex">Minor Concerns:<br>
<br>
The document talks about the IESG statement issued on 2 March 2014.<br>
Please add a reference, which is probably best done with a URL.<br></blockq=
uote><div><br></div><div>Done=C2=A0</div><div>=C2=A0<br></div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1p=
x;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1=
ex">
Section 5 says that the ability to manipulate routing controls is<br>
&quot;subject to authentication and authorization.&quot;=C2=A0 This is high=
ly desirable.<br>
Can we go a little bit further?=C2=A0 Is it like root on a Unix box, or is<=
br>
the authorization more granular?=C2=A0 Are there known roles that must be<b=
r>
supported?<br></blockquote><div><br></div><div>It is intended to be more gr=
anular and the expectation is that there are</div><div>multiple roles - but=
 the details of those roles aren&#39;t defined in the problem-statement</di=
v><div>or even the architecture.=C2=A0 Given the updated security considera=
tions section,</div><div>I&#39;d rather not specify too much here.</div><di=
v>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px=
 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left=
-style:solid;padding-left:1ex">
Other Comments:<br>
<br>
Section 5 says: &quot;Such communications must also have its integrity<br>
protected.&quot;=C2=A0 I do not know how to do authentication without also<=
br>
providing integrity, so this is really implied by the previous<br>
sentence.=C2=A0 That said, I suggest the following wording: &quot;Such<br>
communications must be integrity protected.&quot;<br></blockquote><div><br>=
</div><div>Sure - change made.=C2=A0</div><div><br></div><div>I&#39;ll publ=
ish an updated version very soon (today/tomorrow) after I&#39;ve dealt with=
</div><div>outstanding comments.</div><div><br></div><div>Thanks again for =
your review!</div><div>Alia</div></div></div></div></div>

--089e01229e7ec95a82050c0254ac--


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From: Alia Atlas <akatlas@gmail.com>
To: Qin Wu <bill.wu@huawei.com>
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--001a1133e464a70b84050c02d67a
Content-Type: text/plain; charset=UTF-8
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Hi Qin,

Thanks for the review and taking on being document shepherd!

On Wed, Dec 17, 2014 at 10:10 PM, Qin Wu <bill.wu@huawei.com> wrote:

>  Hi, authors
>
>
>
> I have been selected as the document shepherd for this draft.
>
> I think this is an important draft and support publication.
>
>
>
> Having reviewed this document (v-04), I have a number of editorial
> comments:
>
>
>
> 1. Section 2 said:
>
>
>
> "The second critical aspect are meaningful data-models for information
>
>    in the routing system and in a topology database .  "
>
>
>
> There is a typo in it, Suggested editorial change is:
>
> =E2=80=9CThe second critical aspect of I2RS is a set of meaningful data-m=
odels for
>
> information in the routing system and in a topology database.=E2=80=9D
>

Agreed and fixed.


>  2.Section 2 said:
>
> " The data models should translate into a concise transfer syntax that is
> straightforward for applications to use (e.g., a Web Services design
> paradigm)."
>
>
>
> By reading this sentence, it is not clear what is translated?
>
> data model or information from the routing system?
>
>
>
> Suggested change:
>
> The data models information sent in I2RS protocol should be able to be
> translated into a concise transfer syntax that is straightforward for
> applications to use (e.g., a Web Services design paradigm).
>

I've changed it slightly to
"The data models should translate into a concise transfer syntax, sent via
  the I2RS protocol, that is straightforward for applications to
  use (e.g., a Web Services design paradigm)."

The data model is in YANG - but the transfer syntax might be xml or google
protobufs or...

 3. Section 3, first paragraph said:
>
> "In addition, by having I2RS focus
>
>    initially on interfaces to the RIB layer (e.g.  RIB, LIB, multicast
>
>    RIB, policy-based routing), the ability to use routing indirection
>
>    allows flexibility and functionality that can't be as easily obtained
>
>    at the forwarding layer."
>
>
>
> I think here we should highlight the downside of using existing mechanism=
.
>
>
>
> Suggest the following replacement text:
>
> =E2=80=9C
>
> With an I2RS interface to the RIB layer  (e.g. RIB, LIB, multicast RIB,
> policy-based routing), this provides flexibility and functionality for
> route indirection of next-hops.
>
> This flexibility and functionality cannot be easily obtained at the
> forwarding layer, or obtain via the relevant MIB modules  (for example
> RFC4292) which lack the necessary generality and flexibility.
>
> =E2=80=9C
>

I'm fine with not highlighting the downsides more clearly.   I prefer the
existing text.


>  4.Section 4, second paragraph said:
>
> " Detailed topological state that provides more information than the
> current
>
>    functional status is needed by applications; only the active paths or
>
>    links are known versus those potentially available  (e.g.
>
>    administratively down) or unknown (e.g. to peers or customers) to the
>
>    routing topology. "
>
> Two sentences seems disconnected, suggested replacement text as below:
>
> =E2=80=9C
>
> Detailed topological state which provides more information than the curre=
nt
>
> functional status is needed by applications. An example of this
>
> lack of detailed information is that only the active paths or
>
> links are known versus those potentially available paths (e.g.
>
> administratively down) or unknown paths (e.g. to peers or customers) to t=
he
>
> routing topology.
>
> =E2=80=9C
>

Slightly word-smithed to:

" Detailed topological state that provides more information
      than the current functional status (e.g. active paths and links)
      is needed by applications.  Examples of missing information
      include paths or link that are potentially available (e.g.
      administratively down) or unknown (e.g. to peers or customers)
      to the routing topology."



>  5. Section 8: Security consideration section
>
> Would it be better to add something to say this document is problem
> statement draft
>
> Security considerations are not addressed in this problem statement only
> document. Instead it will be addressed in some protocol documents in the
> future.
>
>
>
> Suggested Replacement for section 8:
>
> =E2=80=9C
>
> Security is a key aspect of any  protocol that allows state installation
> and extracting of detailed router state. The I2RS protocol and data model=
s
> will need to define security requirements such as such as authorization a=
nd
> authentication levels.
>
>
>
> This document as an informational problem statement does not have any
> security considerations.
>
> =E2=80=9C
>

As you may have seen from my email exchange with Russ Housley, I've updated
the Security Considerations
section to:

"Security is a key aspect of any protocol that allows state
      installation and extracting of detailed router state.  The
      security considerations are discussed in
[draft-ietf-i2rs-architecture].
      Briefly, the I2RS Agent
      is assumed to have a separate authentication and authorization
      channel by which it can validate both the identity and the
      permissions associated with an I2RS Client.  Mutual
      authentication between the I2RS Agent and I2RS Client is
      required.  Different levels of integrity, confidentiality, and
      replay protection are relevant for different aspects of I2RS."




>
>
> 6. Section 9
>
> Reference  [I-D.gredler-idr-ls-distribution] should be updated to
> [I-D.ietf-idr-ls-distribution]
>

Fixed

Thanks again!
Alia

>
>



>  Regards!
>
> -Qin
>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs
>
>

--001a1133e464a70b84050c02d67a
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Qin,<div><br></div><div>Thanks for the review and takin=
g on being document shepherd!<br><div class=3D"gmail_extra"><br><div class=
=3D"gmail_quote">On Wed, Dec 17, 2014 at 10:10 PM, Qin Wu <span dir=3D"ltr"=
>&lt;<a href=3D"mailto:bill.wu@huawei.com" target=3D"_blank">bill.wu@huawei=
.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,=
204);border-left-style:solid;padding-left:1ex">





<div lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Hi, authors<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
I have been selected as the document shepherd for this draft.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
I think this is an important draft and support publication.<u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Having reviewed this document (v-04), I have a number of editorial comments=
:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
1. Section 2 said:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
&quot;The second critical aspect are meaningful data-models for information=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 in the routing system and in a topology database . =C2=A0&quot=
;<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
There is a typo in it, Suggested editorial change is:<u></u><u></u></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=E2=80=9CThe second critical aspect of I2RS is a set of meaningful data-mod=
els for<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
information in the routing system and in a topology database.=E2=80=9D</spa=
n></p></div></div></blockquote><div><br></div><div>Agreed and fixed.=C2=A0<=
/div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px=
 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);bor=
der-left-style:solid;padding-left:1ex"><div lang=3D"ZH-CN" link=3D"blue" vl=
ink=3D"purple"><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:r=
gb(31,73,125)"><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
2.Section 2 said:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
&quot; The data models should translate into a concise transfer syntax that=
 is straightforward for applications to use (e.g., a Web Services design pa=
radigm).&quot;<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
By reading this sentence, it is not clear what is translated?<u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
data model or information from the routing system?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Suggested change: =C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
The data models information sent in I2RS protocol should be able to be tran=
slated into a concise transfer syntax that is straightforward for applicati=
ons to use (e.g., a Web Services design paradigm).</span></p></div></blockq=
uote><div><br></div><div>I&#39;ve changed it slightly to</div><div>&quot;Th=
e data models should translate into a concise transfer syntax, sent via</di=
v><div>=C2=A0 the I2RS protocol, that is straightforward for applications t=
o</div><div>=C2=A0 use (e.g., a Web Services design paradigm).&quot;</div><=
div><span style=3D"color:rgb(31,73,125)">=C2=A0</span>=C2=A0</div><div>The =
data model is in YANG - but the transfer syntax might be xml or google prot=
obufs or...</div><div><br></div><blockquote class=3D"gmail_quote" style=3D"=
margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,20=
4,204);border-left-style:solid;padding-left:1ex"><div lang=3D"ZH-CN" link=
=3D"blue" vlink=3D"purple"><p class=3D"MsoNormal"><span lang=3D"EN-US" styl=
e=3D"color:rgb(31,73,125)"><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
3. Section 3, first paragraph said:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
&quot;In addition, by having I2RS focus
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 initially on interfaces to the RIB layer (e.g.=C2=A0 RIB, LIB,=
 multicast<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 RIB, policy-based routing), the ability to use routing indirec=
tion<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 allows flexibility and functionality that can&#39;t be as easi=
ly obtained<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 at the forwarding layer.&quot;<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
I think here we should highlight the downside of using existing mechanism.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Suggest the following replacement text:
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=E2=80=9C<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
With an I2RS interface to the RIB layer =C2=A0(e.g. RIB, LIB, multicast RIB=
, policy-based routing), this provides flexibility and functionality for ro=
ute indirection of next-hops.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
This flexibility and functionality cannot be easily obtained at the forward=
ing layer, or obtain via the relevant MIB modules=C2=A0 (for example RFC429=
2) which lack the necessary generality and flexibility.<u></u><u></u></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=E2=80=9C</span></p></div></blockquote><div><br></div><div>I&#39;m fine wit=
h not highlighting the downsides more clearly. =C2=A0 I prefer the existing=
 text.=C2=A0</div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(20=
4,204,204);border-left-style:solid;padding-left:1ex"><div lang=3D"ZH-CN" li=
nk=3D"blue" vlink=3D"purple"><div><p class=3D"MsoNormal"><span lang=3D"EN-U=
S" style=3D"color:rgb(31,73,125)"><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
4.Section 4, second paragraph said:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
&quot; Detailed topological state that provides more information than the c=
urrent<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 functional status is needed by applications; only the active p=
aths or<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 links are known versus those potentially available=C2=A0 (e.g.=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 administratively down) or unknown (e.g. to peers or customers)=
 to the<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=C2=A0=C2=A0 routing topology. &quot;<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Two sentences seems disconnected, suggested replacement text as below:
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=E2=80=9C<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Detailed topological state which provides more information than the current=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
functional status is needed by applications. An example of this<u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
lack of detailed information is that only the active paths or<u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
links are known versus those potentially available paths (e.g.<u></u><u></u=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
administratively down) or unknown paths (e.g. to peers or customers) to the=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
routing topology. <u></u>
<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=E2=80=9C</span></p></div></div></blockquote><div><br></div><div>Slightly w=
ord-smithed to:</div><div><br></div><div>&quot; Detailed topological state =
that provides more information</div><div>=C2=A0 =C2=A0 =C2=A0 than the curr=
ent functional status (e.g. active paths and links)</div><div>=C2=A0 =C2=A0=
 =C2=A0 is needed by applications.=C2=A0 Examples of missing information</d=
iv><div>=C2=A0 =C2=A0 =C2=A0 include paths or link that are potentially ava=
ilable (e.g.</div><div>=C2=A0 =C2=A0 =C2=A0 administratively down) or unkno=
wn (e.g. to peers or customers)</div><div>=C2=A0 =C2=A0 =C2=A0 to the routi=
ng topology.&quot;</div><div><br></div><div>=C2=A0</div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;bo=
rder-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">=
<div lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple"><div><p class=3D"MsoNorm=
al"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)"><u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
5. Section 8: Security consideration section<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Would it be better to add something to say this document is problem stateme=
nt draft<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Security considerations are not addressed in this problem statement only do=
cument. Instead it will be addressed in some protocol documents in the futu=
re.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Suggested Replacement for section 8:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=E2=80=9C<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Security is a key aspect of any=C2=A0 protocol that allows state installati=
on and extracting of detailed router state. The I2RS protocol and data mode=
ls will need to define security requirements such
 as such as authorization and authentication levels.<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
This document as an informational problem statement does not have any secur=
ity considerations.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
=E2=80=9C</span></p></div></div></blockquote><div><br></div><div>As you may=
 have seen from my email exchange with Russ Housley, I&#39;ve updated the S=
ecurity Considerations</div><div>section to:</div><div><br></div><div>&quot=
;Security is a key aspect of any protocol that allows state</div><div>=C2=
=A0 =C2=A0 =C2=A0 installation and extracting of detailed router state.=C2=
=A0 The</div><div>=C2=A0 =C2=A0 =C2=A0 security considerations are discusse=
d in [draft-ietf-i2rs-architecture].=C2=A0</div><div>=C2=A0 =C2=A0 =C2=A0 B=
riefly, the I2RS Agent</div><div>=C2=A0 =C2=A0 =C2=A0 is assumed to have a =
separate authentication and authorization</div><div>=C2=A0 =C2=A0 =C2=A0 ch=
annel by which it can validate both the identity and the</div><div>=C2=A0 =
=C2=A0 =C2=A0 permissions associated with an I2RS Client.=C2=A0 Mutual</div=
><div>=C2=A0 =C2=A0 =C2=A0 authentication between the I2RS Agent and I2RS C=
lient is</div><div>=C2=A0 =C2=A0 =C2=A0 required.=C2=A0 Different levels of=
 integrity, confidentiality, and</div><div>=C2=A0 =C2=A0 =C2=A0 replay prot=
ection are relevant for different aspects of I2RS.&quot;</div><div><br></di=
v><div><br></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(20=
4,204,204);border-left-style:solid;padding-left:1ex"><div lang=3D"ZH-CN" li=
nk=3D"blue" vlink=3D"purple"><p class=3D"MsoNormal"><span lang=3D"EN-US" st=
yle=3D"color:rgb(31,73,125)"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
<u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
6. Section 9<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Reference=C2=A0 [I-D.gredler-idr-ls-distribution] should be updated to=C2=
=A0 [I-D.ietf-idr-ls-distribution]</span></p></div></blockquote><div><br></=
div><div>Fixed</div><div><br></div><div>Thanks again!</div><div>Alia</div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;pa=
dding-left:1ex"><div lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple"><p class=
=3D"MsoNormal"><span style=3D"font-size:10.5pt">=C2=A0</span></p></div></bl=
ockquote><div><br></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:r=
gb(204,204,204);border-left-style:solid;padding-left:1ex"><div lang=3D"ZH-C=
N" link=3D"blue" vlink=3D"purple"><div><p class=3D"MsoNormal"><span lang=3D=
"EN-US" style=3D"font-size:10.5pt"><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
Regards!<span class=3D""><font color=3D"#888888"><u></u><u></u></font></spa=
n></span></p><span class=3D""><font color=3D"#888888">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:rgb(31,73,125)">=
-Qin<u></u><u></u></span></p>
</font></span></div>
</div>

<br>_______________________________________________<br>
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Subject: Re: [i2rs] [RTG-DIR] Routing directorate review of draft-ietf-i2rs-problem-statement
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Hi Eric,

Thanks for your review.  I really appreciate it.

On Tue, Dec 16, 2014 at 8:33 PM, Eric Gray <eric.gray@ericsson.com> wrote:

> Hello,
>
> I have been selected as the Routing Directorate reviewer for this draft.
>
> The Routing Directorate seeks to review all routing or routing-related
> drafts as they pass through IETF last call and IESG review, and sometimes
> on special request.
>
> The purpose of the review is to provide assistance to the Routing ADs.
>
> For more information about the Routing Directorate, please see:
>
>         =E2=80=8Bhttp://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>
> Although these comments are primarily for the use of the Routing ADs, it
> would be helpful if you could consider them along with any other IETF
> Last Call comments that you receive, and strive to resolve them through
> discussion or by updating the draft.
>
> Document: draft-ietf-i2rs-problem-statement
> Reviewer: Eric Gray
> Review Date: 12/16/2014
> Intended Status: Informational
>
> Summary: I have some minor concerns about this document that I think
> should be resolved before before publication.  The document has nits
> that should also be considered prior to publication.
>
> Minor Issues:
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
> Section 5 title is "Desired Aspects of ..." but the first sentence talks
> about
> "required aspects ..."  I believe that the authors should be consistent.


Keeping required


> The actual "key aspects needed" are a mixture or required and desired
> behaviors.  Because the draft does not refer to RFC 2119 terminology,
> it is not clear if this is intended or a result of narrative style choice=
s.
>

I'm not sure which ones you are reading as desired vs. required.  The inten=
t
is that all are required; trade-offs do happen.


> If the terminology is meant to be interpreted according to RFC 2119,
> then this should be added as a reference.  Otherwise, perhaps the title
> of the section should be changed to:
>
>   "Aspects to be Considered in Designing Protocol for I2RS"
>

Yes, slightly tweaked to
"Aspects to be Considered for an I2RS Protocol"
since I2RS is expecting to modify an existing protocol rather than design
a new one.



> In this section, in addition to "Secure Control" we may want to suggest
> similar "Secure Access."  Information about routing may be useful to an
> attacker for other forms of attack than direct control.
>

 True - just updated the bullet to be "Secure Control and Access".
The content now reads:

"   Any ability to manipulate routing state must be subject to
authentication and
      authorization.  Sensitive routing information may also need to
      be provided via secure access back to the I2RS client.  Such
      communications must be integrity protected.  Some communications
      will also require confidentiality.
"


> Section 8 ("Security Considerations") - Minimally, this section should
> point to security aspects mentioned in the preceding section.
>

Done and extended


> Note that this section mentions "extraction of detailed router state"
> which is one form of access that may both require that requests
> are authenticated and that information may not be intercepted.
>
> NITS:
> =3D=3D=3D=3D
>
> In the Introduction, second line of the first paragraph, "With scale ..."
> should start a new paragraph to be consistent with the next paragraph.
>

eh, not worried about the consistency given it would leave the first
paragraph
with one sentence.

In the appendix the first paragraph should probably end in much the
> same way as the second paragraph, i.e. -
>
>    "CLI Standardization is not considered as a candidate solution for the
>      I2RS."
>
> It is not clear what we are trying to say in saying "I2RS does not involv=
e
> CLI Standardization."
>

Sure - changed.

Thanks again,
Alia

--089e0160be8e5a2f40050c035450
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_extra">Hi Eric,</div><div class=3D"gma=
il_extra"><br></div><div class=3D"gmail_extra">Thanks for your review.=C2=
=A0 I really appreciate it.<br><br><div class=3D"gmail_quote">On Tue, Dec 1=
6, 2014 at 8:33 PM, Eric Gray <span dir=3D"ltr">&lt;<a href=3D"mailto:eric.=
gray@ericsson.com" target=3D"_blank">eric.gray@ericsson.com</a>&gt;</span> =
wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-sty=
le:solid;padding-left:1ex">Hello,<br>
<br>
I have been selected as the Routing Directorate reviewer for this draft.<br=
>
<br>
The Routing Directorate seeks to review all routing or routing-related<br>
drafts as they pass through IETF last call and IESG review, and sometimes<b=
r>
on special request.<br>
<br>
The purpose of the review is to provide assistance to the Routing ADs.<br>
<br>
For more information about the Routing Directorate, please see:<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =E2=80=8B<a href=3D"http://trac.tools.ietf.org/=
area/rtg/trac/wiki/RtgDir" target=3D"_blank">http://trac.tools.ietf.org/are=
a/rtg/trac/wiki/RtgDir</a><br>
<br>
Although these comments are primarily for the use of the Routing ADs, it<br=
>
would be helpful if you could consider them along with any other IETF<br>
Last Call comments that you receive, and strive to resolve them through<br>
discussion or by updating the draft.<br>
<br>
Document: draft-ietf-i2rs-problem-statement<br>
Reviewer: Eric Gray<br>
Review Date: 12/16/2014<br>
Intended Status: Informational<br>
<br>
Summary: I have some minor concerns about this document that I think<br>
should be resolved before before publication.=C2=A0 The document has nits<b=
r>
that should also be considered prior to publication.<br>
<br>
Minor Issues:<br>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>
<br>
Section 5 title is &quot;Desired Aspects of ...&quot; but the first sentenc=
e talks about<br>
&quot;required aspects ...&quot;=C2=A0 I believe that the authors should be=
 consistent.</blockquote><div><br></div><div>Keeping required=C2=A0</div><d=
iv>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0p=
x 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-lef=
t-style:solid;padding-left:1ex">
The actual &quot;key aspects needed&quot; are a mixture or required and des=
ired<br>
behaviors.=C2=A0 Because the draft does not refer to RFC 2119 terminology,<=
br>
it is not clear if this is intended or a result of narrative style choices.=
<br></blockquote><div><br></div><div>I&#39;m not sure which ones you are re=
ading as desired vs. required.=C2=A0 The intent</div><div>is that all are r=
equired; trade-offs do happen. =C2=A0</div><div>=C2=A0</div><blockquote cla=
ss=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;=
border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex=
">
If the terminology is meant to be interpreted according to RFC 2119,<br>
then this should be added as a reference.=C2=A0 Otherwise, perhaps the titl=
e<br>
of the section should be changed to:<br>
<br>
=C2=A0 &quot;Aspects to be Considered in Designing Protocol for I2RS&quot;<=
br></blockquote><div><br></div><div>Yes, slightly tweaked to=C2=A0</div><di=
v>&quot;Aspects to be Considered for an I2RS Protocol&quot;</div><div>since=
 I2RS is expecting to modify an existing protocol rather than design</div><=
div>a new one.</div><div><br></div><div>=C2=A0</div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border-l=
eft-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
In this section, in addition to &quot;Secure Control&quot; we may want to s=
uggest<br>
similar &quot;Secure Access.&quot;=C2=A0 Information about routing may be u=
seful to an<br>
attacker for other forms of attack than direct control.<br></blockquote><di=
v><br></div><div>=C2=A0True - just updated the bullet to be &quot;Secure Co=
ntrol and Access&quot;.</div><div><div>The content now reads:</div><div><br=
></div><div>&quot; =C2=A0 Any ability to manipulate routing state must be s=
ubject to authentication and</div><div>=C2=A0 =C2=A0 =C2=A0 authorization.=
=C2=A0 Sensitive routing information may also need to</div><div>=C2=A0 =C2=
=A0 =C2=A0 be provided via secure access back to the I2RS client.=C2=A0 Suc=
h</div><div>=C2=A0 =C2=A0 =C2=A0 communications must be integrity protected=
.=C2=A0 Some communications</div><div>=C2=A0 =C2=A0 =C2=A0 will also requir=
e confidentiality.</div></div><div>&quot;</div><div>=C2=A0<br></div><blockq=
uote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-wi=
dth:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-=
left:1ex">
Section 8 (&quot;Security Considerations&quot;) - Minimally, this section s=
hould<br>
point to security aspects mentioned in the preceding section.<br></blockquo=
te><div><br></div><div>Done and extended=C2=A0</div><div>=C2=A0</div><block=
quote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-w=
idth:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding=
-left:1ex">
Note that this section mentions &quot;extraction of detailed router state&q=
uot;<br>
which is one form of access that may both require that requests<br>
are authenticated and that information may not be intercepted.<br>
<br>
NITS:<br>
=3D=3D=3D=3D<br>
<br>
In the Introduction, second line of the first paragraph, &quot;With scale .=
..&quot;<br>
should start a new paragraph to be consistent with the next paragraph.<br><=
/blockquote><div><br></div><div>eh, not worried about the consistency given=
 it would leave the first paragraph</div><div>with one sentence.</div><div>=
<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-sty=
le:solid;padding-left:1ex">In the appendix the first paragraph should proba=
bly end in much the<br>
same way as the second paragraph, i.e. -<br>
<br>
=C2=A0 =C2=A0&quot;CLI Standardization is not considered as a candidate sol=
ution for the<br>
=C2=A0 =C2=A0 =C2=A0I2RS.&quot;<br>
<br>
It is not clear what we are trying to say in saying &quot;I2RS does not inv=
olve<br>
CLI Standardization.&quot;<br></blockquote><div><br></div><div>Sure - chang=
ed.</div><div><br></div><div>Thanks again,</div><div>Alia=C2=A0</div></div>=
<br></div></div>

--089e0160be8e5a2f40050c035450--


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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Interface to the Routing System Working Group of the IETF.

        Title           : Interface to the Routing System Problem Statement
        Authors         : Alia Atlas
                          Thomas D. Nadeau
                          Dave Ward
	Filename        : draft-ietf-i2rs-problem-statement-05.txt
	Pages           : 10
	Date            : 2015-01-06

Abstract:
   As modern networks grow in scale and complexity, the need for rapid
   and dynamic control increases.  With scale, the need to automate even
   the simplest operations is important, but even more critical is the
   ability to quickly interact with more complex operations such as
   policy-based controls.

   In order to enable network applications to have access to and control
   over information in the Internet's routing system, we need a publicly
   documented interface specification.  The interface needs to support
   real-time, asynchronous interactions using data models and encodings
   that are efficient and potentially different from those available
   today.  Furthermore, the interface must be tailored to support a
   variety of use cases.

   This document expands upon these statements of requirements to
   provide a detailed problem statement for an Interface to the Routing
   System (I2RS).


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-i2rs-problem-statement/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-i2rs-problem-statement-05

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-i2rs-problem-statement-05


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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--001a11379da2765158050c0383c2
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I have posted an updated version that I believe responds to all the
various reviews that I saw (GenArt, RtgDir, SecDir, Shepherd).

Please send any comments and concerns about the new version to
the list as well as me.

Regards,
Alia

--001a11379da2765158050c0383c2
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<div dir=3D"ltr">I have posted an updated version that I believe responds t=
o all the<div>various reviews that I saw (GenArt, RtgDir, SecDir, Shepherd)=
.</div><div><br></div><div>Please send any comments and concerns about the =
new version to</div><div>the list as well as me.</div><div><br></div><div>R=
egards,</div><div>Alia</div></div>

--001a11379da2765158050c0383c2--


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From: Alia Atlas <akatlas@juniper.net>
To: Eric Gray <eric.gray@ericsson.com>, Alia Atlas <akatlas@gmail.com>
Thread-Topic: [RTG-DIR] Routing directorate review of draft-ietf-i2rs-problem-statement
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Subject: Re: [i2rs] [RTG-DIR] Routing directorate review of draft-ietf-i2rs-problem-statement
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From: Eric Gray <eric.gray@ericsson.com>
To: Alia Atlas <akatlas@juniper.net>, Alia Atlas <akatlas@gmail.com>
Thread-Topic: [RTG-DIR] Routing directorate review of draft-ietf-i2rs-problem-statement
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Subject: Re: [i2rs] [RTG-DIR] Routing directorate review of draft-ietf-i2rs-problem-statement
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Subject: [i2rs] I-D Action: draft-ietf-i2rs-problem-statement-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Interface to the Routing System Working Group of the IETF.

        Title           : Interface to the Routing System Problem Statement
        Authors         : Alia Atlas
                          Thomas D. Nadeau
                          Dave Ward
	Filename        : draft-ietf-i2rs-problem-statement-06.txt
	Pages           : 11
	Date            : 2015-01-07

Abstract:
   As modern networks grow in scale and complexity, the need for rapid
   and dynamic control increases.  With scale, the need to automate even
   the simplest operations is important, but even more critical is the
   ability to quickly interact with more complex operations such as
   policy-based controls.

   In order to enable network applications to have access to and control
   over information in the Internet's routing system, we need a publicly
   documented interface specification.  The interface needs to support
   real-time, asynchronous interactions using data models and encodings
   that are efficient and potentially different from those available
   today.  Furthermore, the interface must be tailored to support a
   variety of use cases.

   This document expands upon these statements of requirements to
   provide a detailed problem statement for an Interface to the Routing
   System (I2RS).


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-i2rs-problem-statement/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-i2rs-problem-statement-06

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-i2rs-problem-statement-06


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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From: Alia Atlas <akatlas@gmail.com>
To: Eric Gray <eric.gray@ericsson.com>
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Cc: "rtg-dir@ietf.org" <rtg-dir@ietf.org>, "i2rs@ietf.org" <i2rs@ietf.org>, Alia Atlas <akatlas@juniper.net>, "draft-ietf-i2rs-problem-statement@tools.ietf.org" <draft-ietf-i2rs-problem-statement@tools.ietf.org>, "rtg-ads@tools.ietf.org" <rtg-ads@tools.ietf.org>
Subject: Re: [i2rs] [RTG-DIR] Routing directorate review of draft-ietf-i2rs-problem-statement
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--089e01229e7eb62400050c166623
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Eric,

Ok.  Done and posted as version -06.

Thanks,
Alia

On Wed, Jan 7, 2015 at 4:09 PM, Eric Gray <eric.gray@ericsson.com> wrote:

>  Alia,
>
>
>
>                 I=E2=80=99m happy with not changing the text further in s=
ection 5
> and I would
>
> appreciate it if you make the minor change to the introduction.
>
>
>
>                 So it looks like we have converged=E2=80=A6
>
>
>
> --
>
> Eric
>
>
>
> *From:* Alia Atlas [mailto:akatlas@juniper.net]
> *Sent:* Wednesday, January 07, 2015 3:55 PM
> *To:* Eric Gray; Alia Atlas
> *Cc:* rtg-ads@tools.ietf.org; rtg-dir@ietf.org;
> draft-ietf-i2rs-problem-statement@tools.ietf.org; i2rs@ietf.org
> *Subject:* RE: [RTG-DIR] Routing directorate review of
> draft-ietf-i2rs-problem-statement
> *Importance:* High
>
>
>
> Hi Eric,
>
>
>
> Responses in-line below (but with agreements removed).
>
> I=E2=80=99ll push out the slightly modified version as soon as I hear bac=
k from
> you.
>
>
>
> Thanks again,
>
> Alia
>
>
>
>
>
> *From:* Eric Gray [mailto:eric.gray@ericsson.com <eric.gray@ericsson.com>=
]
>
> *Sent:* Wednesday, January 07, 2015 11:14 AM
> *To:* Alia Atlas
> *Cc:* rtg-ads@tools.ietf.org; rtg-dir@ietf.org;
> draft-ietf-i2rs-problem-statement@tools.ietf.org; i2rs@ietf.org
> *Subject:* RE: [RTG-DIR] Routing directorate review of
> draft-ietf-i2rs-problem-statement
>
>
>
> Alia,
>
>
>
>                 Hope everyone enjoyed the holidays.
>
>
>
>                 Responses in-line *below*=E2=80=A6
>
>
>
> *From:* Alia Atlas [mailto:akatlas@gmail.com <akatlas@gmail.com>]
> *Sent:* Tuesday, January 06, 2015 5:29 PM
> *To:* Eric Gray
> *Cc:* rtg-ads@tools.ietf.org; rtg-dir@ietf.org;
> draft-ietf-i2rs-problem-statement@tools.ietf.org; i2rs@ietf.org
> *Subject:* Re: [RTG-DIR] Routing directorate review of
> draft-ietf-i2rs-problem-statement
> *Importance:* High
>
>
>
> Hi Eric,
>
>
>
> Thanks for your review.  I really appreciate it.
>
> On Tue, Dec 16, 2014 at 8:33 PM, Eric Gray <eric.gray@ericsson.com> wrote=
:
>
> Hello,
>
> I have been selected as the Routing Directorate reviewer for this draft.
>
> The Routing Directorate seeks to review all routing or routing-related
> drafts as they pass through IETF last call and IESG review, and sometimes
> on special request.
>
> The purpose of the review is to provide assistance to the Routing ADs.
>
> For more information about the Routing Directorate, please see:
>
>         =E2=80=8Bhttp://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir
>
> Although these comments are primarily for the use of the Routing ADs, it
> would be helpful if you could consider them along with any other IETF
> Last Call comments that you receive, and strive to resolve them through
> discussion or by updating the draft.
>
> Document: draft-ietf-i2rs-problem-statement
> Reviewer: Eric Gray
> Review Date: 12/16/2014
> Intended Status: Informational
>
> Summary: I have some minor concerns about this document that I think
> should be resolved before before publication.  The document has nits
> that should also be considered prior to publication.
>
> Minor Issues:
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
> Section 5 title is "Desired Aspects of ..." but the first sentence talks
> about
> "required aspects ..."  I believe that the authors should be consistent.
>
>
>
> Keeping required
>
>
>
> The actual "key aspects needed" are a mixture or required and desired
> behaviors.  Because the draft does not refer to RFC 2119 terminology,
> it is not clear if this is intended or a result of narrative style choice=
s.
>
>
>
> I'm not sure which ones you are reading as desired vs. required.  The
> intent
>
> is that all are required; trade-offs do happen.
>
>
>
> *Changing the section title helps.  The issues that remain are less
> significant*
>
> *when considered as =E2=80=9Caspects to be considered.=E2=80=9D*
>
>
>
> *I wanted to avoid being pedantic, but one example (now more minor) is as=
*
>
> *follows:*
>
> -          *1st paragraph uses the phrase =E2=80=9Cdescribes required asp=
ects=E2=80=9D*
>
> -          *the 1st list item (multiple simultaneous asynchronous
> operations),*
>
> *however, says that a single application should be able to =E2=80=A6*
>
>
>
> I am well used to pendatry ;-)
>
>
>
> *Without the reference to RFC 2119, =E2=80=9Cshould=E2=80=9D may be ambig=
uously
> interpreted*
>
> *according to standard English as something likely but not required.*
>
>
>
> *I think what was probably meant in this case is that protocol is require=
d
> to*
>
> *support applications that perform multiple concurrent operations (which
> is*
>
> *something we believe applications should be able to do).*
>
>
>
> *The current text is not explicit about this as a protocol requirement, i=
f
> that is *
>
> *what is intended, instead making the protocol requirement implicit based
> on *
>
> *the way that we believe applications would likely use it.*
>
>
>
> *There are similar issues with =E2=80=9CHigh Throughput=E2=80=9D, =E2=80=
=9CLow Latency=E2=80=9D and
> =E2=80=9CMulti-*
>
> *Channel.=E2=80=9D*
>
>
>
> *One advantage of referring to RFC 2119 is it makes =E2=80=9Cshould=E2=80=
=9D less
> ambiguous,*
>
> *and defines this term (and other terms) as =E2=80=9Crequirement levels.=
=E2=80=9D*
>
>
>
> *But I am okay with leaving this as is, because of the heading change.
> Most*
>
> *people will be able to figure out what is meant, eventually.  **J*
>
>
>
> I think so also.   This is describing what the solution should look like =
=E2=80=93
> not giving the
>
> detailed protocol requirements.
>
>
>
>
>
> Note that this section mentions "extraction of detailed router state"
> which is one form of access that may both require that requests
> are authenticated and that information may not be intercepted.
>
> NITS:
> =3D=3D=3D=3D
>
> In the Introduction, second line of the first paragraph, "With scale ..."
> should start a new paragraph to be consistent with the next paragraph.
>
>
>
> eh, not worried about the consistency given it would leave the first
> paragraph
>
> with one sentence.
>
>
>
> *Single-sentence paragraphs are quite common.*
>
>
>
> *See, for instance the earlier paragraph in the latest draft that reads
> =E2=80=9CThis draft *
>
> *will expire on July 10, 2015.=E2=80=9D*
>
>
>
> *Again, I was trying to avoid pedanticism.  Sigh.*
>
>
>
> *More important in either prose or specification is that a paragraph
> represents a*
>
> *single block/concept in whatever it is you are trying to construct.*
>
>
>
> *Even in prose, if you have an opening sentence that introduces two thing=
s
> you*
>
> *want to talk about, then either both of them or neither of them should b=
e
> in*
>
> *the same paragraph.  For prose, this is mostly about flow.*
>
>
>
> *In specification, it is slightly more important.  A reader who is
> skimming the *
>
> *introductory text before plowing into the salient parts of the
> specification is*
>
> *likely to actually miss the point you=E2=80=99re making about scale beca=
use it=E2=80=99s
> buried*
>
> *in the paragraph that introduces issues with both scale and complexity.*
>
>
>
> *If scale were  important, it probably would be in a separate paragraph.*
>
>
>
> *Of course, you could (in prose anyway) do this deliberately as a way to
> place*
>
> *greater emphasis on the second point, sort of along the following lines:=
*
>
>
>
> *=E2=80=9CThere are two major kinds of ideas that we can expect to encoun=
ter in
> our*
>
> *discussions: good ideas and bad ideas.  Bad ideas are obviously somethin=
g*
>
> *we want to quickly dispense with.*
>
>
>
> *=E2=80=9CGood ideas, on the other hand, should be =E2=80=A6=E2=80=9D*
>
>
>
> *In my opinion, use of this sort of literary device in a specification
> would be just*
>
> *a bit inappropriate.  If the text is not worth emphasis, leave it out.*
>
>
>
> I do think it is worth the emphasis and agree that there is almost
> parallelism in
>
> the text deliberately.    I just didn=E2=80=99t feel it was necessary, bu=
t if you
> feel strongly
>
> enough to write many paragraphs about it, I=E2=80=99ll change it.
>
>
>

--089e01229e7eb62400050c166623
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<div dir=3D"ltr">Eric,<div><br></div><div>Ok.=C2=A0 Done and posted as vers=
ion -06.</div><div><br></div><div>Thanks,</div><div>Alia</div></div><div cl=
ass=3D"gmail_extra"><br><div class=3D"gmail_quote">On Wed, Jan 7, 2015 at 4=
:09 PM, Eric Gray <span dir=3D"ltr">&lt;<a href=3D"mailto:eric.gray@ericsso=
n.com" target=3D"_blank">eric.gray@ericsson.com</a>&gt;</span> wrote:<br><b=
lockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px =
#ccc solid;padding-left:1ex">





<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">Alia,<u></u><u></u></span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 I=E2=80=
=99m happy with not changing the text further in section 5 and I would
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">appreciate it if you make=
 the minor change to the introduction.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 So it lo=
oks like we have converged=E2=80=A6<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">--<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">Eric<u></u><u></u></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot=
;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Alia Atl=
as [mailto:<a href=3D"mailto:akatlas@juniper.net" target=3D"_blank">akatlas=
@juniper.net</a>]
<br>
<b>Sent:</b> Wednesday, January 07, 2015 3:55 PM<br>
<b>To:</b> Eric Gray; Alia Atlas<span class=3D""><br>
<b>Cc:</b> <a href=3D"mailto:rtg-ads@tools.ietf.org" target=3D"_blank">rtg-=
ads@tools.ietf.org</a>; <a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blan=
k">rtg-dir@ietf.org</a>; <a href=3D"mailto:draft-ietf-i2rs-problem-statemen=
t@tools.ietf.org" target=3D"_blank">draft-ietf-i2rs-problem-statement@tools=
.ietf.org</a>; <a href=3D"mailto:i2rs@ietf.org" target=3D"_blank">i2rs@ietf=
.org</a><br>
<b>Subject:</b> RE: [RTG-DIR] Routing directorate review of draft-ietf-i2rs=
-problem-statement<br>
</span><b>Importance:</b> High<u></u><u></u></span></p>
</div>
</div><div><div class=3D"h5">
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">Hi Eric,<u></u><u></u></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red"><u></u>=C2=A0<u></u></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">Responses in-line below (but =
with agreements removed).<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">I=E2=80=99ll push out the sli=
ghtly modified version as soon as I hear back from you.<u></u><u></u></span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red"><u></u>=C2=A0<u></u></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">Thanks again,<u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">Alia<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red"><u></u>=C2=A0<u></u></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-=
size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"> Eric G=
ray [<a href=3D"mailto:eric.gray@ericsson.com" target=3D"_blank">mailto:eri=
c.gray@ericsson.com</a>]
<br>
<b>Sent:</b> Wednesday, January 07, 2015 11:14 AM<br>
<b>To:</b> Alia Atlas<br>
<b>Cc:</b> <a href=3D"mailto:rtg-ads@tools.ietf.org" target=3D"_blank">rtg-=
ads@tools.ietf.org</a>; <a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blan=
k">
rtg-dir@ietf.org</a>; <a href=3D"mailto:draft-ietf-i2rs-problem-statement@t=
ools.ietf.org" target=3D"_blank">
draft-ietf-i2rs-problem-statement@tools.ietf.org</a>; <a href=3D"mailto:i2r=
s@ietf.org" target=3D"_blank">
i2rs@ietf.org</a><br>
<b>Subject:</b> RE: [RTG-DIR] Routing directorate review of draft-ietf-i2rs=
-problem-statement<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">Alia,<u></u><u></u></span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Hope eve=
ryone enjoyed the holidays.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d">=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Response=
s in-line
</span><b><i><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot=
;,&quot;sans-serif&quot;;color:#7030a0">below</span></i></b><span style=3D"=
font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;col=
or:#1f497d">=E2=80=A6<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:&quot=
;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Alia Atl=
as [</span><a href=3D"mailto:akatlas@gmail.com" target=3D"_blank"><span sty=
le=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot=
;">mailto:akatlas@gmail.com</span></a><span style=3D"font-size:10.0pt;font-=
family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">]
<br>
<b>Sent:</b> Tuesday, January 06, 2015 5:29 PM<br>
<b>To:</b> Eric Gray<br>
<b>Cc:</b> </span><a href=3D"mailto:rtg-ads@tools.ietf.org" target=3D"_blan=
k"><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;san=
s-serif&quot;">rtg-ads@tools.ietf.org</span></a><span style=3D"font-size:10=
.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">;
</span><a href=3D"mailto:rtg-dir@ietf.org" target=3D"_blank"><span style=3D=
"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">rt=
g-dir@ietf.org</span></a><span style=3D"font-size:10.0pt;font-family:&quot;=
Tahoma&quot;,&quot;sans-serif&quot;">;
</span><a href=3D"mailto:draft-ietf-i2rs-problem-statement@tools.ietf.org" =
target=3D"_blank"><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&=
quot;,&quot;sans-serif&quot;">draft-ietf-i2rs-problem-statement@tools.ietf.=
org</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot=
;,&quot;sans-serif&quot;">;
</span><a href=3D"mailto:i2rs@ietf.org" target=3D"_blank"><span style=3D"fo=
nt-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">i2rs@=
ietf.org</span></a><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma=
&quot;,&quot;sans-serif&quot;"><br>
<b>Subject:</b> Re: [RTG-DIR] Routing directorate review of draft-ietf-i2rs=
-problem-statement<br>
<b>Importance:</b> High<u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div>
<div>
<p class=3D"MsoNormal">Hi Eric,<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt">Thanks for your revie=
w.=C2=A0 I really appreciate it.<u></u><u></u></p>
<div>
<p class=3D"MsoNormal">On Tue, Dec 16, 2014 at 8:33 PM, Eric Gray &lt;<a hr=
ef=3D"mailto:eric.gray@ericsson.com" target=3D"_blank">eric.gray@ericsson.c=
om</a>&gt; wrote:<u></u><u></u></p>
<p class=3D"MsoNormal">Hello,<br>
<br>
I have been selected as the Routing Directorate reviewer for this draft.<br=
>
<br>
The Routing Directorate seeks to review all routing or routing-related<br>
drafts as they pass through IETF last call and IESG review, and sometimes<b=
r>
on special request.<br>
<br>
The purpose of the review is to provide assistance to the Routing ADs.<br>
<br>
For more information about the Routing Directorate, please see:<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =E2=80=8B<a href=3D"http://trac.tools.ietf.org/=
area/rtg/trac/wiki/RtgDir" target=3D"_blank">http://trac.tools.ietf.org/are=
a/rtg/trac/wiki/RtgDir</a><br>
<br>
Although these comments are primarily for the use of the Routing ADs, it<br=
>
would be helpful if you could consider them along with any other IETF<br>
Last Call comments that you receive, and strive to resolve them through<br>
discussion or by updating the draft.<br>
<br>
Document: draft-ietf-i2rs-problem-statement<br>
Reviewer: Eric Gray<br>
Review Date: 12/16/2014<br>
Intended Status: Informational<br>
<br>
Summary: I have some minor concerns about this document that I think<br>
should be resolved before before publication.=C2=A0 The document has nits<b=
r>
that should also be considered prior to publication.<br>
<br>
Minor Issues:<br>
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>
<br>
Section 5 title is &quot;Desired Aspects of ...&quot; but the first sentenc=
e talks about<br>
&quot;required aspects ...&quot;=C2=A0 I believe that the authors should be=
 consistent.<u></u><u></u></p>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">Keeping required=C2=A0<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border:none;border-left:solid #cccccc 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<p class=3D"MsoNormal">The actual &quot;key aspects needed&quot; are a mixt=
ure or required and desired<br>
behaviors.=C2=A0 Because the draft does not refer to RFC 2119 terminology,<=
br>
it is not clear if this is intended or a result of narrative style choices.=
<u></u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">I&#39;m not sure which ones you are reading as desir=
ed vs. required.=C2=A0 The intent<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">is that all are required; trade-offs do happen. =C2=
=A0<u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1f497d"><u></u>=C2=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">Changing the sectio=
n title helps.=C2=A0 The issues that remain are less significant<u></u><u><=
/u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">when considered as =
=E2=80=9Caspects to be considered.=E2=80=9D<u></u><u></u></span></i></b></p=
>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">I wanted to avoid b=
eing pedantic, but one example (now more minor) is as<u></u><u></u></span><=
/i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">follows:<u></u><u><=
/u></span></i></b></p>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#7030a0">-</span><span style=3D"font-size:7.0pt;color:=
#7030a0">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><b><i><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot=
;,&quot;sans-serif&quot;;color:#7030a0">1<sup>st</sup> paragraph uses the p=
hrase =E2=80=9Cdescribes
<u>required</u> aspects=E2=80=9D<u></u><u></u></span></i></b></p>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#7030a0">-</span><span style=3D"font-size:7.0pt;color:=
#7030a0">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><b><i><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot=
;,&quot;sans-serif&quot;;color:#7030a0">the 1<sup>st</sup> list item (multi=
ple simultaneous asynchronous operations),<u></u><u></u></span></i></b></p>
<p><b><i><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&q=
uot;sans-serif&quot;;color:#7030a0">however, says that a single application
<u>should</u> be able to =E2=80=A6<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red"><u></u>=C2=A0<u></u></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">I am well used to pendatry ;-=
)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">Without the referen=
ce to RFC 2119, =E2=80=9Cshould=E2=80=9D may be ambiguously interpreted<u><=
/u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">according to standa=
rd English as something likely but not
<u>required</u>.<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">I think what was pr=
obably meant in this case is that protocol is required to<u></u><u></u></sp=
an></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">support application=
s that perform multiple concurrent operations (which is<u></u><u></u></span=
></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">something we believ=
e applications
<u>should</u> be able to do).<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">The current text is=
 not explicit about this as a protocol requirement, if that is
<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">what is intended, i=
nstead making the protocol requirement implicit based on
<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">the way that we bel=
ieve applications would likely use it.<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">There are similar i=
ssues with =E2=80=9CHigh Throughput=E2=80=9D, =E2=80=9CLow Latency=E2=80=9D=
 and =E2=80=9CMulti-<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">Channel.=E2=80=9D<u=
></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">One advantage of re=
ferring to RFC 2119 is it makes =E2=80=9Cshould=E2=80=9D less ambiguous,<u>=
</u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">and defines this te=
rm (and other terms) as =E2=80=9Crequirement levels.=E2=80=9D<u></u><u></u>=
</span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">But I am okay with =
leaving this as is, because of the heading change.=C2=A0 Most<u></u><u></u>=
</span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">people will be able=
 to figure out what is meant, eventually.=C2=A0
</span></i></b><b><i><span style=3D"font-size:11.0pt;font-family:Wingdings;=
color:#7030a0">J</span></i></b><b><i><span style=3D"font-size:11.0pt;font-f=
amily:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u><u><=
/u></span></i></b></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">I think so also.=C2=A0=C2=A0 =
This is describing what the solution should look like =E2=80=93 not giving =
the<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">detailed protocol requirement=
s.</span><u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">=C2=A0<u></u><u></u></p>
</div>
<blockquote style=3D"border:none;border-left:solid #cccccc 1.0pt;padding:0i=
n 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-=
bottom:5.0pt">
<p class=3D"MsoNormal">Note that this section mentions &quot;extraction of =
detailed router state&quot;<br>
which is one form of access that may both require that requests<br>
are authenticated and that information may not be intercepted.<br>
<br>
NITS:<br>
=3D=3D=3D=3D<br>
<br>
In the Introduction, second line of the first paragraph, &quot;With scale .=
..&quot;<br>
should start a new paragraph to be consistent with the next paragraph.<u></=
u><u></u></p>
</blockquote>
<div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
<div>
<p class=3D"MsoNormal">eh, not worried about the consistency given it would=
 leave the first paragraph<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal">with one sentence.<u></u><u></u></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">Single-sentence par=
agraphs are quite common.<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">See, for instance t=
he earlier paragraph in the latest draft that reads =E2=80=9CThis draft
<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">will expire on July=
 10, 2015.=E2=80=9D<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">Again, I was trying=
 to avoid pedanticism.=C2=A0 Sigh.<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">More important in e=
ither prose or specification is that a paragraph represents a<u></u><u></u>=
</span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">single block/concep=
t in whatever it is you are trying to construct.<u></u><u></u></span></i></=
b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">Even in prose, if y=
ou have an opening sentence that introduces two things you<u></u><u></u></s=
pan></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">want to talk about,=
 then either both of them or neither of them should be in<u></u><u></u></sp=
an></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">the same paragraph.=
=C2=A0 For prose, this is mostly about flow.<u></u><u></u></span></i></b></=
p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">In specification, i=
t is slightly more important.=C2=A0 A reader who is skimming the
<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">introductory text b=
efore plowing into the salient parts of the specification is<u></u><u></u><=
/span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">likely to actually =
miss the point you=E2=80=99re making about scale because it=E2=80=99s burie=
d<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">in the paragraph th=
at introduces issues with both scale and complexity.<u></u><u></u></span></=
i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">If scale were =C2=
=A0important, it probably would be in a separate paragraph.<u></u><u></u></=
span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">Of course, you coul=
d (in prose anyway) do this deliberately as a way to place<u></u><u></u></s=
pan></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">greater emphasis on=
 the second point, sort of along the following lines:<u></u><u></u></span><=
/i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">=E2=80=9CThere are =
two major kinds of ideas that we can expect to encounter in our<u></u><u></=
u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">discussions: good i=
deas and bad ideas.=C2=A0 Bad ideas are obviously something<u></u><u></u></=
span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">we want to quickly =
dispense with.<u></u><u></u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">=E2=80=9CGood ideas=
, on the other hand, should be =E2=80=A6=E2=80=9D<u></u><u></u></span></i><=
/b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">In my opinion, use =
of this sort of literary device in a specification would be just<u></u><u><=
/u></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0">a bit inappropriate=
.=C2=A0 If the text is not worth emphasis, leave it out.<u></u><u></u></spa=
n></i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:11.0pt;font-family:&q=
uot;Calibri&quot;,&quot;sans-serif&quot;;color:#7030a0"><u></u>=C2=A0<u></u=
></span></i></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">I do think it is worth the em=
phasis and agree that there is almost parallelism in<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">the text deliberately.=C2=A0=
=C2=A0=C2=A0 I just didn=E2=80=99t feel it was necessary, but if you feel s=
trongly<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:red">enough to write many paragrap=
hs about it, I=E2=80=99ll change it.<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>
</div></div></div>
</div>

</blockquote></div><br></div>

--089e01229e7eb62400050c166623--


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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Interface to the Routing System Working Group of the IETF.

        Title           : An Architecture for the Interface to the Routing System
        Authors         : Alia Atlas
                          Joel Halpern
                          Susan Hares
                          Dave Ward
                          Thomas D. Nadeau
	Filename        : draft-ietf-i2rs-architecture-08.txt
	Pages           : 32
	Date            : 2015-01-07

Abstract:
   This document describes an architecture for a standard, programmatic
   interface for state transfer in and out of the Internet routing
   system.  It describes the basic architecture, the components, and
   their interfaces with particular focus on those to be standardized as
   part of the Interface to Routing System (I2RS).


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-i2rs-architecture/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-i2rs-architecture-08

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-i2rs-architecture-08


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
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The I2RS WG virtual interim meeting scheduled for January 23 has been moved to 
January 22, 2015, from 10:00am-11:30am EST (1500 UTC).  Additionally, the 
working group will hold virtual interim meetings on February 5, 2015, February 
19, 2015, and March 5, 2015 from 10:00am-11:30am EST (1500 UTC).  

WebEx information will be posted to the I2RS mailing list.


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From: Qin Wu <bill.wu@huawei.com>
To: Alia Atlas <akatlas@gmail.com>
Thread-Topic: [i2rs] Shepherd review of draft-ietf-i2rs-problem-statement-04
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Date: Thu, 8 Jan 2015 05:00:05 +0000
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Subject: Re: [i2rs] Shepherd review of draft-ietf-i2rs-problem-statement-04
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Subject: [i2rs] I2RS interim meeting
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The I2RS WG will hold Interim  #3 this morning at  January 8th, 2014 at
10:00am - 11:30 am. ET 

 

The agenda and the proceedings can be found at: 

 

http://www.ietf.org/proceedings/interim/2015/01/08/i2rs/proceedings.html

 

This meeting focuses on two architecture issues: 

 a) Concerns security directorate's on the architecture document (5
questions), and 

 b) updates to the traceability WG Document.   

 

Completion of the architecture work will help us prepare for our

protocol work and a re-chartering effort to include yang modules. 

 

==============

webex:
https://ietf.webex.com/ietf/j.php?MTID=mc8f9e812ff0dad1c580b3ae2d0edab94

 

Meeting number:  647 163 325 

Meeting password: jeffprotofun

                        

Join by phone

                                       

1-877-668-4493   (toll free number (US/Canada)

1-650-479-3208 Call-in toll number       (US/Canada)

Access code: 647 163 325

 

Etherpad for notes: 

http://etherpad.tools.ietf.org:9000/p/i2rs-agenda-2015-Jan-8


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>The I2RS =
WG will hold Interim &nbsp;#3 this morning at &nbsp;January 8th, 2014 at =
10:00am &#8211; 11:30 am. ET <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal>The agenda =
and the proceedings can be found at: <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;<o:p></o:p></p><p class=3DMsoNormal><a =
href=3D"http://www.ietf.org/proceedings/interim/2015/01/08/i2rs/proceedin=
gs.html">http://www.ietf.org/proceedings/interim/2015/01/08/i2rs/proceedi=
ngs.html</a><o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>This meeting focuses on two architecture issues: =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;a) Concerns security =
directorate&#8217;s on the architecture document (5 questions), and =
<o:p></o:p></p><p class=3DMsoNormal>&nbsp;b) updates to the traceability =
WG Document.&nbsp; &nbsp;<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Completion =
of the architecture work will help us prepare for our<o:p></o:p></p><p =
class=3DMsoNormal>protocol work and a re-chartering effort to include =
yang modules. <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:p></o:p></=
p><p class=3DMsoNormal>webex: =
https://ietf.webex.com/ietf/j.php?MTID=3Dmc8f9e812ff0dad1c580b3ae2d0edab9=
4<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Meeting number:&nbsp; 647 163 325 <o:p></o:p></p><p =
class=3DMsoNormal>Meeting password: jeffprotofun<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp; <o:p></o:p></p><p class=3DMsoNormal>Join by =
phone<o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal>1-877-668-4493&nbsp;&nbsp; (toll free number =
(US/Canada)<o:p></o:p></p><p class=3DMsoNormal>1-650-479-3208 Call-in =
toll number&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
(US/Canada)<o:p></o:p></p><p class=3DMsoNormal>Access code: 647 163 =
325<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Etherpad for notes: <o:p></o:p></p><p =
class=3DMsoNormal>http://etherpad.tools.ietf.org:9000/p/i2rs-agenda-2015-=
Jan-8<o:p></o:p></p></div></body></html>
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Subject: Re: [i2rs] Shepherd review of draft-ietf-i2rs-problem-statement-04
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Qin:

=20

Thank you for reviewing the changes to the problem statement.=20

=20

Sue=20

=20

From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Qin Wu
Sent: Thursday, January 08, 2015 12:00 AM
To: Alia Atlas
Cc: i2rs@ietf.org; draft-ietf-i2rs-problem-statement@tools.ietf.org
Subject: Re: [i2rs] Shepherd review of =
draft-ietf-i2rs-problem-statement-04

=20

Thanks for addressing my comments, your proposed changes work for me.

=20

Regards!

-Qin

=E5=8F=91=E4=BB=B6=E4=BA=BA: Alia Atlas [mailto:akatlas@gmail.com]=20
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B41=E6=9C=887=E6=97=A5 =
5:54
=E6=94=B6=E4=BB=B6=E4=BA=BA: Qin Wu
=E6=8A=84=E9=80=81: draft-ietf-i2rs-problem-statement@tools.ietf.org; =
i2rs@ietf.org
=E4=B8=BB=E9=A2=98: Re: [i2rs] Shepherd review of =
draft-ietf-i2rs-problem-statement-04

=20

Hi Qin,

=20

Thanks for the review and taking on being document shepherd!

=20

On Wed, Dec 17, 2014 at 10:10 PM, Qin Wu <bill.wu@huawei.com> wrote:

Hi, authors

=20

I have been selected as the document shepherd for this draft.=20

I think this is an important draft and support publication.

=20

Having reviewed this document (v-04), I have a number of editorial =
comments:

=20

1. Section 2 said:

=20

"The second critical aspect are meaningful data-models for information

   in the routing system and in a topology database .  "

=20

There is a typo in it, Suggested editorial change is:

=E2=80=9CThe second critical aspect of I2RS is a set of meaningful =
data-models for

information in the routing system and in a topology database.=E2=80=9D

=20

Agreed and fixed.=20

=20

2.Section 2 said:

" The data models should translate into a concise transfer syntax that =
is straightforward for applications to use (e.g., a Web Services design =
paradigm)."

=20

By reading this sentence, it is not clear what is translated?

data model or information from the routing system?

=20

Suggested change: =20

The data models information sent in I2RS protocol should be able to be =
translated into a concise transfer syntax that is straightforward for =
applications to use (e.g., a Web Services design paradigm).

=20

I've changed it slightly to

"The data models should translate into a concise transfer syntax, sent =
via

  the I2RS protocol, that is straightforward for applications to

  use (e.g., a Web Services design paradigm)."

 =20

The data model is in YANG - but the transfer syntax might be xml or =
google protobufs or...

=20

3. Section 3, first paragraph said:

"In addition, by having I2RS focus=20

   initially on interfaces to the RIB layer (e.g.  RIB, LIB, multicast

   RIB, policy-based routing), the ability to use routing indirection

   allows flexibility and functionality that can't be as easily obtained

   at the forwarding layer."

=20

I think here we should highlight the downside of using existing =
mechanism.=20

=20

Suggest the following replacement text:=20

=E2=80=9C

With an I2RS interface to the RIB layer  (e.g. RIB, LIB, multicast RIB, =
policy-based routing), this provides flexibility and functionality for =
route indirection of next-hops.

This flexibility and functionality cannot be easily obtained at the =
forwarding layer, or obtain via the relevant MIB modules  (for example =
RFC4292) which lack the necessary generality and flexibility.

=E2=80=9C

=20

I'm fine with not highlighting the downsides more clearly.   I prefer =
the existing text.=20

=20

4.Section 4, second paragraph said:

" Detailed topological state that provides more information than the =
current

   functional status is needed by applications; only the active paths or

   links are known versus those potentially available  (e.g.

   administratively down) or unknown (e.g. to peers or customers) to the

   routing topology. "

Two sentences seems disconnected, suggested replacement text as below:=20

=E2=80=9C

Detailed topological state which provides more information than the =
current

functional status is needed by applications. An example of this

lack of detailed information is that only the active paths or

links are known versus those potentially available paths (e.g.

administratively down) or unknown paths (e.g. to peers or customers) to =
the

routing topology.=20

=E2=80=9C

=20

Slightly word-smithed to:

=20

" Detailed topological state that provides more information

      than the current functional status (e.g. active paths and links)

      is needed by applications.  Examples of missing information

      include paths or link that are potentially available (e.g.

      administratively down) or unknown (e.g. to peers or customers)

      to the routing topology."

=20

=20

5. Section 8: Security consideration section

Would it be better to add something to say this document is problem =
statement draft

Security considerations are not addressed in this problem statement only =
document. Instead it will be addressed in some protocol documents in the =
future.

=20

Suggested Replacement for section 8:

=E2=80=9C

Security is a key aspect of any  protocol that allows state installation =
and extracting of detailed router state. The I2RS protocol and data =
models will need to define security requirements such as such as =
authorization and authentication levels.

=20

This document as an informational problem statement does not have any =
security considerations.

=E2=80=9C

=20

As you may have seen from my email exchange with Russ Housley, I've =
updated the Security Considerations

section to:

=20

"Security is a key aspect of any protocol that allows state

      installation and extracting of detailed router state.  The

      security considerations are discussed in =
[draft-ietf-i2rs-architecture].=20

      Briefly, the I2RS Agent

      is assumed to have a separate authentication and authorization

      channel by which it can validate both the identity and the

      permissions associated with an I2RS Client.  Mutual

      authentication between the I2RS Agent and I2RS Client is

      required.  Different levels of integrity, confidentiality, and

      replay protection are relevant for different aspects of I2RS."

=20

=20

=20

=20

6. Section 9

Reference  [I-D.gredler-idr-ls-distribution] should be updated to  =
[I-D.ietf-idr-ls-distribution]

=20

Fixed

=20

Thanks again!

Alia

=20

=20

=20

Regards!

-Qin


_______________________________________________
i2rs mailing list
i2rs@ietf.org
https://www.ietf.org/mailman/listinfo/i2rs

=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Qin:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thank you for reviewing the changes to the problem statement. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
i2rs [mailto:i2rs-bounces@ietf.org] <b>On Behalf Of </b>Qin =
Wu<br><b>Sent:</b> Thursday, January 08, 2015 12:00 AM<br><b>To:</b> =
Alia Atlas<br><b>Cc:</b> i2rs@ietf.org; =
draft-ietf-i2rs-problem-statement@tools.ietf.org<br><b>Subject:</b> Re: =
[i2rs] Shepherd review of =
draft-ietf-i2rs-problem-statement-04<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>Thanks for addressing my comments, your =
proposed changes work for me.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>Regards!<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>-Qin<o:p></o:p></span></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span lang=3DZH-CN =
style=3D'font-size:10.0pt;mso-fareast-language:ZH-CN'>=E5=8F=91=E4=BB=B6=E4=
=BA=BA</span></b><b><span =
style=3D'font-size:10.0pt;mso-fareast-language:ZH-CN'>:</span></b><span =
style=3D'font-size:10.0pt;mso-fareast-language:ZH-CN'> Alia Atlas [<a =
href=3D"mailto:akatlas@gmail.com">mailto:akatlas@gmail.com</a>] =
<br><b><span =
lang=3DZH-CN>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4</span>:</b> 2015<span =
lang=3DZH-CN>=E5=B9=B4</span>1<span lang=3DZH-CN>=E6=9C=88</span>7<span =
lang=3DZH-CN>=E6=97=A5</span> 5:54<br><b><span =
lang=3DZH-CN>=E6=94=B6=E4=BB=B6=E4=BA=BA</span>:</b> Qin Wu<br><b><span =
lang=3DZH-CN>=E6=8A=84=E9=80=81</span>:</b> <a =
href=3D"mailto:draft-ietf-i2rs-problem-statement@tools.ietf.org">draft-ie=
tf-i2rs-problem-statement@tools.ietf.org</a>; <a =
href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br><b><span =
lang=3DZH-CN>=E4=B8=BB=E9=A2=98</span>:</b> Re: [i2rs] Shepherd review =
of draft-ietf-i2rs-problem-statement-04<o:p></o:p></span></p></div><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>Hi =
Qin,<o:p></o:p></span></p><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>Thanks for the review and taking on =
being document shepherd!<o:p></o:p></span></p><div><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>On Wed, Dec =
17, 2014 at 10:10 PM, Qin Wu &lt;<a href=3D"mailto:bill.wu@huawei.com" =
target=3D"_blank">bill.wu@huawei.com</a>&gt; =
wrote:<o:p></o:p></span></p><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Hi, =
authors</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>I have been selected =
as the document shepherd for this draft. </span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>I think this is an =
important draft and support publication.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Having reviewed this =
document (v-04), I have a number of editorial comments:</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>1. Section 2 =
said:</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&quot;The second =
critical aspect are meaningful data-models for information</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; in the =
routing system and in a topology database . &nbsp;&quot;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>There is a typo in =
it, Suggested editorial change is:</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DZH-CN =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>The second critical =
aspect of I2RS is a set of meaningful data-models for</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>information in the =
routing system and in a topology database.<span =
lang=3DZH-CN>=E2=80=9D</span></span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p></div></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>Agreed and =
fixed.&nbsp;<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span></p></div><b=
lockquote style=3D'border:none;border-left:solid #CCCCCC =
1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>2.Section 2 =
said:</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&quot; The data =
models should translate into a concise transfer syntax that is =
straightforward for applications to use (e.g., a Web Services design =
paradigm).&quot;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>By reading this =
sentence, it is not clear what is translated?</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>data model or =
information from the routing system?</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Suggested change: =
&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>The data models =
information sent in I2RS protocol should be able to be translated into a =
concise transfer syntax that is straightforward for applications to use =
(e.g., a Web Services design paradigm).</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p></div></blockq=
uote><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>I've =
changed it slightly to<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>&quot;The =
data models should translate into a concise transfer syntax, sent =
via<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; the I2RS protocol, that is =
straightforward for applications to<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>&nbsp; use =
(e.g., a Web Services design =
paradigm).&quot;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span></p></div><d=
iv><p class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>The =
data model is in YANG - but the transfer syntax might be xml or google =
protobufs or...<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><b=
lockquote style=3D'border:none;border-left:solid #CCCCCC =
1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>3. Section 3, first =
paragraph said:</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&quot;In addition, by =
having I2RS focus </span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
initially on interfaces to the RIB layer (e.g.&nbsp; RIB, LIB, =
multicast</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; RIB, =
policy-based routing), the ability to use routing =
indirection</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; allows =
flexibility and functionality that can't be as easily =
obtained</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; at the =
forwarding layer.&quot;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>I think here we =
should highlight the downside of using existing mechanism. </span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Suggest the following =
replacement text: </span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DZH-CN =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>With an I2RS =
interface to the RIB layer &nbsp;(e.g. RIB, LIB, multicast RIB, =
policy-based routing), this provides flexibility and functionality for =
route indirection of next-hops.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>This flexibility and =
functionality cannot be easily obtained at the forwarding layer, or =
obtain via the relevant MIB modules&nbsp; (for example RFC4292) which =
lack the necessary generality and flexibility.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DZH-CN =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p></div></blockq=
uote><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>I'm =
fine with not highlighting the downsides more clearly. &nbsp; I prefer =
the existing text.&nbsp;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span></p></div><b=
lockquote style=3D'border:none;border-left:solid #CCCCCC =
1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>4.Section 4, second =
paragraph said:</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&quot; Detailed =
topological state that provides more information than the =
current</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
functional status is needed by applications; only the active paths =
or</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; links =
are known versus those potentially available&nbsp; (e.g.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; =
administratively down) or unknown (e.g. to peers or customers) to =
the</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; routing =
topology. &quot;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Two sentences seems =
disconnected, suggested replacement text as below: </span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DZH-CN =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Detailed topological =
state which provides more information than the current</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>functional status is =
needed by applications. An example of this</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>lack of detailed =
information is that only the active paths or</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>links are known =
versus those potentially available paths (e.g.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>administratively =
down) or unknown paths (e.g. to peers or customers) to the</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>routing topology. =
</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DZH-CN =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p></div></div></=
blockquote><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>Slightly word-smithed =
to:<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&quot; Detailed topological state =
that provides more information<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>&nbsp; =
&nbsp; &nbsp; than the current functional status (e.g. active paths and =
links)<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; is needed by =
applications.&nbsp; Examples of missing =
information<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; include paths =
or link that are potentially available =
(e.g.<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; =
administratively down) or unknown (e.g. to peers or =
customers)<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; to the routing =
topology.&quot;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span></p></div><b=
lockquote style=3D'border:none;border-left:solid #CCCCCC =
1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>5. Section 8: =
Security consideration section</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Would it be better to =
add something to say this document is problem statement =
draft</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Security =
considerations are not addressed in this problem statement only =
document. Instead it will be addressed in some protocol documents in the =
future.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Suggested Replacement =
for section 8:</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DZH-CN =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Security is a key =
aspect of any&nbsp; protocol that allows state installation and =
extracting of detailed router state. The I2RS protocol and data models =
will need to define security requirements such as such as authorization =
and authentication levels.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>This document as an =
informational problem statement does not have any security =
considerations.</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DZH-CN =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p></div></div></=
blockquote><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>As =
you may have seen from my email exchange with Russ Housley, I've updated =
the Security Considerations<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>section =
to:<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&quot;Security is a key aspect of =
any protocol that allows state<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>&nbsp; =
&nbsp; &nbsp; installation and extracting of detailed router =
state.&nbsp; The<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>&nbsp; =
&nbsp; &nbsp; security considerations are discussed in =
[draft-ietf-i2rs-architecture].&nbsp;<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>&nbsp; =
&nbsp; &nbsp; Briefly, the I2RS Agent<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>&nbsp; =
&nbsp; &nbsp; is assumed to have a separate authentication and =
authorization<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; channel by =
which it can validate both the identity and =
the<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; permissions =
associated with an I2RS Client.&nbsp; =
Mutual<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; authentication =
between the I2RS Agent and I2RS Client =
is<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; =
required.&nbsp; Different levels of integrity, confidentiality, =
and<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp; &nbsp; &nbsp; replay =
protection are relevant for different aspects of =
I2RS.&quot;<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span></p></div><b=
lockquote style=3D'border:none;border-left:solid #CCCCCC =
1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>6. Section =
9</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Reference&nbsp; =
[I-D.gredler-idr-ls-distribution] should be updated to&nbsp; =
[I-D.ietf-idr-ls-distribution]</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p></div></blockq=
uote><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>Fixed<o:p></o:p></span></p></div><di=
v><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>Thanks =
again!<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>Alia<o:p></o:p></span></p></div><blo=
ckquote style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in =
0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'font-size:10.5pt;mso-fareast-language:ZH-CN'>&nbsp;</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p></div></blockq=
uote><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&nbsp;<o:p></o:p></span></p></div><b=
lockquote style=3D'border:none;border-left:solid #CCCCCC =
1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>Regards!</span><span =
style=3D'mso-fareast-language:ZH-CN'><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
style=3D'color:#1F497D;mso-fareast-language:ZH-CN'>-Qin</span><span =
style=3D'color:#888888;mso-fareast-language:ZH-CN'><o:p></o:p></span></p>=
</div></div><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
style=3D'mso-fareast-language:ZH-CN'><br>________________________________=
_______________<br>i2rs mailing list<br><a =
href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/i2rs" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/i2rs</a><o:p></o:=
p></span></p></blockquote></div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div></=
div></div></div></body></html>
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From nobody Thu Jan  8 08:25:33 2015
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I2RS interim 2014-01-08

Attendees:
Alexander Clemm
Alia Atlas
Amit Dass
Chodorek ?
Dean Bogdanovic
Dhruv Doty
Don Fedyk
Gonzalo Salgueiro
Ignas Bagdonas
Jeff Haas
Jie Dong
Joe Clark
Jürgen Schönwälder
Sriganesh Kini
Susan Hares

-----

Document status and design teams

Need to review security directorate feedback on architecture.
Need to get the documents to the 

Joe will be giving us an update on the traceability document.
Sue will provide rib-info model update.  No update ready for today.

Problem statement: received directorate feedbacks - that has been integrated
and will be sent out shortly.

Architecture draft: small comments from various people, integrated, but need
to address security directorate comments.  
Charter needs to be revised after problem statements and architecture
drafts.

-----

Security issues:
Questions [slides]

Ignas: On Q1 next steps - are you talking about general protocol
requirements or just security review comments?
Sue: These are working group decisions.  Need to look at netconf or restconf
with features added to either.  
Ignas: The way I read the security directorate comments is that they are
concerned about slightly different things. Not netconf, etc. Separate
signaling protocol, they're concerned about the transport issues.
Sue: You think they may be asking about the content of the protocol?
Ignas: Not that missed something. Two orthogonal aspects. Restconf can run
over TCP and others. Security directorate is asking about transport
security.
Jeff: we’re providing requirements for what we need; see
restconf/netconf transport requirements.
Ignas: They’re asking about authentication requirements.
Jeff: Think this is covered still in the protocols in question.
Sue: Can ask the security reviewer what they meant.

Q2 Validation credential of second ID.
Sue: Is everyone comfortable with secondary ID as opaque string?
Joe Clark: Updated traceability draft to cover this as "actor ID".
Agent may validate that a client can use a given opaque string, but not part
of the authentication protocol.
Alia: Secondary identifier just for troubleshooting.  If agent is acting as
broker, there was concern we wouldn't have enough information for that
troubleshooting.
Sriganesh: Alia, to simplify troubleshooting or enable? Still could do this
based on agent IDs.
Alia: Simplify it.
Sriganesh: Need more explanation of what we mean by opaque? Operating on it
at the agent? Treating each client separately.
Alia: Opaque in terms of no understanding of what's inside.  No
decisions.
Sriganesh: As long as we clarify that it's no decision making.

Q3.1: Security and asynchronous nature of i2rs protocol
Alia: Last write wins - based on priorities not tied. Labels for
transactions are not the default.
Jeff: Feedback from NYC interim was that there isn't a clear mechanism
for priorities at this time.  Could be done with metadata.  However,
protocols would not use these for adjudicating whether one bit of config
wins or not.  Work required in protocols.
Alia: This has been in architecture for a long time.
Jeff: Just highlighting things that may hinder implementation.

Checkpoint or transaction labels.
Sue: It is unclear that the security directorate may not have read the
priority stuff.  Write responses - unclear about what the group thinks about
labels?
Jeff: NYC netmod interim indicated that transctions and validation may slow
us down. We may need to avoid these to be fast?
Dean: Restconf transactions are atomic. You can have multiple transactions
within same session. 
Sue: Does that gives us the labeling that Alia wants?
Dean: I think it does, but need to check.
Alia: It's like a message-id. Need to get into the particular details
about how a protocol can do it?
Jeff: I don't think that async transactions existing yet.
Alia: Alex, does pub-sub cover this?
Alex: Don't think it's directly applicable. Configuration vs.
subscription.
Alia: When you send your write - subscribe to that response? Other clients
may want to get those responses.
Alex: Be able to refer to a particular subscription?
Alia: Client does a write, subscribe to a notification for a particular
response. Second client may want to get those responses as well.
Alex: Need to discuss this requirement. If we want to apply this to
configuration changes, that's another mechanism. We were going after
operational data.
Jeff: Could you make sure to point out in the mailing list where the
requirement is for async writes for config state? I think the subscription
requirements are clear.
Alia: Ok.
Sue: Haven't heard of any restconf/netconf protocol checkpoints
Jeff: Don't think it's spelled out. Would slow us down.
Alia: No, checkpoints are not in arch. Not even transactions. Just
message-ids.
Dean: In restconf, uses HTTP methods - states actions we're doing. POST
is atomic. Multi-message transaction?
Alia: No, only single message in transaction.
Dean: In restconf, can only be read or write, not both.


Ephemeral 
Jeff: There is no indication that a discontinuity has happened. We may need
this to help with restart of agent.
Alia: Just need to get this into the protocol.

Collisions




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	boundary="----=_NextPart_001_02BE_01D02B55.7EC6D9C0"


------=_NextPart_001_02BE_01D02B55.7EC6D9C0
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	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

=20

This is a resend of Jeff=92s minutes for today=92s interim.=20

=20

Sue=20

=20

2RS interim 2014-01-08

=20

Attendees:

Jeff Haas

Susan Hares

Chodorek ?

Dean Bogdanovic

Ignas Bagdonas

Dhruv Doty

Amit Dass

Don Fedyk

Joe Clark

Gonzalo Salgueiro

Sriganesh Kini

J=FCrgen Sch=F6nw=E4lder

Jie Dong

Alexander Clemm

Alia Atlas

=20

=97=97=97

=20

Document status and design teams

=20

Need to review security directorate feedback on architecture.

Need to get the documents to the=20

=20

Joe will be giving us an update on the traceability document.

Sue will provide rib-info model update.  No update ready for today.

=20

Problem statement: received directorate feedbacks - that has been =
integrated
and will be sent out shortly.

=20

Architecture draft: small comments from various people, integrated, but =
need
to address security directorate comments. =20

Charter needs to be revised after problem statements and architecture
drafts.

=20

=20

Security issues:

Questions [slides]

=20

Ignas: On Q1 next steps - are you talking about general protocol
requirements or just security review comments?

Sue: These are working group decisions.  Need to look at netconf or =
restconf
with features added to either. =20

Ignas: The way I read the security directorate comments is that they are
concerned about slightly different things. Not netconf, etc. Separate
signaling protocol, they are concerned about the transport issues.

Sue: You think they may be asking about the content of the protocol?

Ignas: Not that missed something. Two orthogonal aspects. Restconf can =
run
over TCP and others. Security directorate is asking about transport
security.

Jeff: we are providing requirements for what we need; see =
restconf/netconf
transport requirements.

Ignas: They are asking about authentication requirements.

Jeff: Think this is covered still in the protocols in question.

Sue: Can ask the security reviewer what they meant.

=20

Q2 Validation credential of second ID.

Sue: Is everyone comfortable with secondary ID as opaque string?

Joe Clark: Updated traceability draft to cover this as =93actor ID=94.  =
Agent
may validate that a client can use a given opaque string, but not part =
of
the authentication protocol.

Alia: Secondary identifier just for troubleshooting.  If agent is acting =
as
broker, there was concern we wouldn=92t have enough information for that
troubleshooting.

Sriganesh: Alia, to simplify troubleshooting or enable? Still could do =
this
based on agent IDs.

Alia: Simplify it.

Sriganesh: Need more explanation of what we mean by opaque? Operating on =
it
at the agent? Treating each client separately.

Alia: Opaque in terms of no understanding of what=92s inside.  No =
decisions.

Sriganesh: As long as we clarify that it=92s no decision making.

=20

Q3.1: Security and asynchronous nature of i2rs protocol

Alia: Last write wins - based on priorities not tied. Labels for
transactions are not the default.

Jeff: Feedback from NYC interim was that there is not a clear mechanism =
for
priorities at this time.  Could be done with metadata.  However, =
protocols
would not use these for adjudicating whether one bit of config wins or =
not.
Work required in protocols.

Alia: This has been in architecture for a long time.

Jeff: Just highlighting things that may hinder implementation.

=20

Checkpoint or transaction labels.

Sue: It is unclear that the security directorate may not have read the
priority stuff.  Write responses - unclear about what the group thinks =
about
labels?

Jeff: NYC netmod interim indicated that transctions and validation may =
slow
us down. We may need to avoid these to be fast?

Dean: Restconf transactions are atomic. You can have multiple =
transactions
within same session.=20

Sue: Does that gives us the labeling that Alia wants?

Dean: I think it does, but need to check.

Alia: It is like a message-id. Need to get into the particular details =
about
how a protocol can do it?

Jeff: I don=92t think that async transactions existing yet.

Alia: Alex, does pub-sub cover this?

Alex: Do not think it is directly applicable. Configuration vs.
subscription.

Alia: When you send your write - subscribe to that response? Other =
clients
may want to get those responses.

Alex: Be able to refer to a particular subscription?

Alia: Client does a write, subscribe to a notification for a particular
response. Second client may want to get those responses as well.

Alex: Need to discuss this requirement. If we want to apply this to
configuration changes, that is another mechanism. We were going after
operational data.

Jeff: Could you make sure to point out in the mailing list where the
requirement is for async writes for config state? I think the =
subscription
requirements are clear.

Alia: Ok.

Sue: I have not heard of any restconf/netconf protocol checkpoints

Jeff: Do not think it is spelled out. Would slow us down.

Alia: No, checkpoints are not in arch. Not even transactions. Just
message-ids.

Dean: In restconf, uses HTTP methods - states actions we=92re doing. =
POST is
atomic. Multi-message transaction?

Alia: No, only single message in transaction.

Dean: In restconf, can only be read or write, not both.

=20

=20

Ephemeral=20

Jeff: There is no indication that a discontinuity has happened. We may =
need
this to help with restart of agent.

Alia: Just need to get this into the protocol.

=20

Collisions

=20

=20

=20

=20


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vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>This is a =
resend of Jeff&#8217;s minutes for today&#8217;s interim. =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Sue <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>2RS interim =
2014-01-08<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Attendees:<o:p></o:p></p><p class=3DMsoNormal>Jeff =
Haas<o:p></o:p></p><p class=3DMsoNormal>Susan Hares<o:p></o:p></p><p =
class=3DMsoNormal>Chodorek ?<o:p></o:p></p><p class=3DMsoNormal>Dean =
Bogdanovic<o:p></o:p></p><p class=3DMsoNormal>Ignas =
Bagdonas<o:p></o:p></p><p class=3DMsoNormal>Dhruv Doty<o:p></o:p></p><p =
class=3DMsoNormal>Amit Dass<o:p></o:p></p><p class=3DMsoNormal>Don =
Fedyk<o:p></o:p></p><p class=3DMsoNormal>Joe Clark<o:p></o:p></p><p =
class=3DMsoNormal>Gonzalo Salgueiro<o:p></o:p></p><p =
class=3DMsoNormal>Sriganesh Kini<o:p></o:p></p><p =
class=3DMsoNormal>J=FCrgen Sch=F6nw=E4lder<o:p></o:p></p><p =
class=3DMsoNormal>Jie Dong<o:p></o:p></p><p class=3DMsoNormal>Alexander =
Clemm<o:p></o:p></p><p class=3DMsoNormal>Alia Atlas<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>&#8212;&#8212;&#8212;<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Document =
status and design teams<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Need to =
review security directorate feedback on architecture.<o:p></o:p></p><p =
class=3DMsoNormal>Need to get the documents to the <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Joe will be =
giving us an update on the traceability document.<o:p></o:p></p><p =
class=3DMsoNormal>Sue will provide rib-info model update.=A0 No update =
ready for today.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Problem =
statement: received directorate feedbacks - that has been integrated and =
will be sent out shortly.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Architecture =
draft: small comments from various people, integrated, but need to =
address security directorate comments.=A0 <o:p></o:p></p><p =
class=3DMsoNormal>Charter needs to be revised after problem statements =
and architecture drafts.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Security =
issues:<o:p></o:p></p><p class=3DMsoNormal>Questions =
[slides]<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Ignas: On Q1 next steps - are you talking about =
general protocol requirements or just security review =
comments?<o:p></o:p></p><p class=3DMsoNormal>Sue: These are working =
group decisions.=A0 Need to look at netconf or restconf with features =
added to either.=A0 <o:p></o:p></p><p class=3DMsoNormal>Ignas: The way I =
read the security directorate comments is that they are concerned about =
slightly different things. Not netconf, etc. Separate signaling =
protocol, they are concerned about the transport =
issues.<o:p></o:p></p><p class=3DMsoNormal>Sue: You think they may be =
asking about the content of the protocol?<o:p></o:p></p><p =
class=3DMsoNormal>Ignas: Not that missed something. Two orthogonal =
aspects. Restconf can run over TCP and others. Security directorate is =
asking about transport security.<o:p></o:p></p><p =
class=3DMsoNormal>Jeff: we are providing requirements for what we need; =
see restconf/netconf transport requirements.<o:p></o:p></p><p =
class=3DMsoNormal>Ignas: They are asking about authentication =
requirements.<o:p></o:p></p><p class=3DMsoNormal>Jeff: Think this is =
covered still in the protocols in question.<o:p></o:p></p><p =
class=3DMsoNormal>Sue: Can ask the security reviewer what they =
meant.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Q2 Validation credential of second =
ID.<o:p></o:p></p><p class=3DMsoNormal>Sue: Is everyone comfortable with =
secondary ID as opaque string?<o:p></o:p></p><p class=3DMsoNormal>Joe =
Clark: Updated traceability draft to cover this as &#8220;actor =
ID&#8221;.=A0 Agent may validate that a client can use a given opaque =
string, but not part of the authentication protocol.<o:p></o:p></p><p =
class=3DMsoNormal>Alia: Secondary identifier just for =
troubleshooting.=A0 If agent is acting as broker, there was concern we =
wouldn&#8217;t have enough information for that =
troubleshooting.<o:p></o:p></p><p class=3DMsoNormal>Sriganesh: Alia, to =
simplify troubleshooting or enable? Still could do this based on agent =
IDs.<o:p></o:p></p><p class=3DMsoNormal>Alia: Simplify =
it.<o:p></o:p></p><p class=3DMsoNormal>Sriganesh: Need more explanation =
of what we mean by opaque? Operating on it at the agent? Treating each =
client separately.<o:p></o:p></p><p class=3DMsoNormal>Alia: Opaque in =
terms of no understanding of what&#8217;s inside.=A0 No =
decisions.<o:p></o:p></p><p class=3DMsoNormal>Sriganesh: As long as we =
clarify that it&#8217;s no decision making.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Q3.1: =
Security and asynchronous nature of i2rs protocol<o:p></o:p></p><p =
class=3DMsoNormal>Alia: Last write wins - based on priorities not tied. =
Labels for transactions are not the default.<o:p></o:p></p><p =
class=3DMsoNormal>Jeff: Feedback from NYC interim was that there is not =
a clear mechanism for priorities at this time.=A0 Could be done with =
metadata.=A0 However, protocols would not use these for adjudicating =
whether one bit of config wins or not.=A0 Work required in =
protocols.<o:p></o:p></p><p class=3DMsoNormal>Alia: This has been in =
architecture for a long time.<o:p></o:p></p><p class=3DMsoNormal>Jeff: =
Just highlighting things that may hinder =
implementation.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Checkpoint =
or transaction labels.<o:p></o:p></p><p class=3DMsoNormal>Sue: It is =
unclear that the security directorate may not have read the priority =
stuff.=A0 Write responses - unclear about what the group thinks about =
labels?<o:p></o:p></p><p class=3DMsoNormal>Jeff: NYC netmod interim =
indicated that transctions and validation may slow us down. We may need =
to avoid these to be fast?<o:p></o:p></p><p class=3DMsoNormal>Dean: =
Restconf transactions are atomic. You can have multiple transactions =
within same session. <o:p></o:p></p><p class=3DMsoNormal>Sue: Does that =
gives us the labeling that Alia wants?<o:p></o:p></p><p =
class=3DMsoNormal>Dean: I think it does, but need to =
check.<o:p></o:p></p><p class=3DMsoNormal>Alia: It is like a message-id. =
Need to get into the particular details about how a protocol can do =
it?<o:p></o:p></p><p class=3DMsoNormal>Jeff: I don&#8217;t think that =
async transactions existing yet.<o:p></o:p></p><p =
class=3DMsoNormal>Alia: Alex, does pub-sub cover this?<o:p></o:p></p><p =
class=3DMsoNormal>Alex: Do not think it is directly applicable. =
Configuration vs. subscription.<o:p></o:p></p><p class=3DMsoNormal>Alia: =
When you send your write - subscribe to that response? Other clients may =
want to get those responses.<o:p></o:p></p><p class=3DMsoNormal>Alex: Be =
able to refer to a particular subscription?<o:p></o:p></p><p =
class=3DMsoNormal>Alia: Client does a write, subscribe to a notification =
for a particular response. Second client may want to get those responses =
as well.<o:p></o:p></p><p class=3DMsoNormal>Alex: Need to discuss this =
requirement. If we want to apply this to configuration changes, that is =
another mechanism. We were going after operational =
data.<o:p></o:p></p><p class=3DMsoNormal>Jeff: Could you make sure to =
point out in the mailing list where the requirement is for async writes =
for config state? I think the subscription requirements are =
clear.<o:p></o:p></p><p class=3DMsoNormal>Alia: Ok.<o:p></o:p></p><p =
class=3DMsoNormal>Sue: I have not heard of any restconf/netconf protocol =
checkpoints<o:p></o:p></p><p class=3DMsoNormal>Jeff: Do not think it is =
spelled out. Would slow us down.<o:p></o:p></p><p =
class=3DMsoNormal>Alia: No, checkpoints are not in arch. Not even =
transactions. Just message-ids.<o:p></o:p></p><p class=3DMsoNormal>Dean: =
In restconf, uses HTTP methods - states actions we&#8217;re doing. POST =
is atomic. Multi-message transaction?<o:p></o:p></p><p =
class=3DMsoNormal>Alia: No, only single message in =
transaction.<o:p></o:p></p><p class=3DMsoNormal>Dean: In restconf, can =
only be read or write, not both.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Ephemeral =
<o:p></o:p></p><p class=3DMsoNormal>Jeff: There is no indication that a =
discontinuity has happened. We may need this to help with restart of =
agent.<o:p></o:p></p><p class=3DMsoNormal>Alia: Just need to get this =
into the protocol.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Collisions<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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I2RS interim 2014-01-08

Attendees:
Jeff Haas
Susan Hares
Chodorek ?
Dean Bogdanovic
Ignas Bagdonas
Dhruv Doty
Amit Dass
Don Fedyk
Joe Clark
Gonzalo Salgueiro
Sriganesh Kini
J=C3=BCrgen Sch=C3=B6nw=C3=A4lder
Jie Dong
Alexander Clemm
Alia Atlas

=E2=80=94=E2=80=94=E2=80=94

Document status and design teams

Need to review security directorate feedback on architecture.
Need to get the documents to the=20

Joe will be giving us an update on the traceability document.
Sue will provide rib-info model update.  No update ready for today.

Problem statement: received directorate feedbacks - that has been =
integrated and will be sent out shortly.

Architecture draft: small comments from various people, integrated, but =
need to address security directorate comments. =20
Charter needs to be revised after problem statements and architecture =
drafts.


Security issues:
Questions [slides]

Ignas: On Q1 next steps - are you talking about general protocol =
requirements or just security review comments?
Sue: These are working group decisions.  Need to look at netconf or =
restconf with features added to either. =20
Ignas: The way I read the security directorate comments is that they are =
concerned about slightly different things. Not netconf, etc. Separate =
signaling protocol, they are concerned about the transport issues.
Sue: You think they may be asking about the content of the protocol?
Ignas: Not that missed something. Two orthogonal aspects. Restconf can =
run over TCP and others. Security directorate is asking about transport =
security.
Jeff: we are providing requirements for what we need; see =
restconf/netconf transport requirements.
Ignas: They are asking about authentication requirements.
Jeff: Think this is covered still in the protocols in question.
Sue: Can ask the security reviewer what they meant.

Q2 Validation credential of second ID.
Sue: Is everyone comfortable with secondary ID as opaque string?
Joe Clark: Updated traceability draft to cover this as =E2=80=9Cactor =
ID=E2=80=9D.  Agent may validate that a client can use a given opaque =
string, but not part of the authentication protocol.
Alia: Secondary identifier just for troubleshooting.  If agent is acting =
as broker, there was concern we wouldn=E2=80=99t have enough information =
for that troubleshooting.
Sriganesh: Alia, to simplify troubleshooting or enable? Still could do =
this based on agent IDs.
Alia: Simplify it.
Sriganesh: Need more explanation of what we mean by opaque? Operating on =
it at the agent? Treating each client separately.
Alia: Opaque in terms of no understanding of what=E2=80=99s inside.  No =
decisions.
Sriganesh: As long as we clarify that it=E2=80=99s no decision making.

Q3.1: Security and asynchronous nature of i2rs protocol
Alia: Last write wins - based on priorities not tied. Labels for =
transactions are not the default.
Jeff: Feedback from NYC interim was that there is not a clear mechanism =
for priorities at this time.  Could be done with metadata.  However, =
protocols would not use these for adjudicating whether one bit of config =
wins or not.  Work required in protocols.
Alia: This has been in architecture for a long time.
Jeff: Just highlighting things that may hinder implementation.

Checkpoint or transaction labels.
Sue: It is unclear that the security directorate may not have read the =
priority stuff.  Write responses - unclear about what the group thinks =
about labels?
Jeff: NYC netmod interim indicated that transctions and validation may =
slow us down. We may need to avoid these to be fast?
Dean: Restconf transactions are atomic. You can have multiple =
transactions within same session.=20
Sue: Does that gives us the labeling that Alia wants?
Dean: I think it does, but need to check.
Alia: It is like a message-id. Need to get into the particular details =
about how a protocol can do it?
Jeff: I don=E2=80=99t think that async transactions existing yet.
Alia: Alex, does pub-sub cover this?
Alex: Do not think it is directly applicable. Configuration vs. =
subscription.
Alia: When you send your write - subscribe to that response? Other =
clients may want to get those responses.
Alex: Be able to refer to a particular subscription?
Alia: Client does a write, subscribe to a notification for a particular =
response. Second client may want to get those responses as well.
Alex: Need to discuss this requirement. If we want to apply this to =
configuration changes, that is another mechanism. We were going after =
operational data.
Jeff: Could you make sure to point out in the mailing list where the =
requirement is for async writes for config state? I think the =
subscription requirements are clear.
Alia: Ok.
Sue: I have not heard of any restconf/netconf protocol checkpoints
Jeff: Do not think it is spelled out. Would slow us down.
Alia: No, checkpoints are not in arch. Not even transactions. Just =
message-ids.
Dean: In restconf, uses HTTP methods - states actions we=E2=80=99re =
doing. POST is atomic. Multi-message transaction?
Alia: No, only single message in transaction.
Dean: In restconf, can only be read or write, not both.


Ephemeral=20
Jeff: There is no indication that a discontinuity has happened. We may =
need this to help with restart of agent.
Alia: Just need to get this into the protocol.

Collisions



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Alia,

No, I don't have anything specific---my expertise is not in software
evaluation.  I was just concerned that Jeffrey's comment implied that 3
Routing Area directors could solve this problem.

Your response has assured me that some mechanisms are in place, and
(given that fact) I assume that these mechanisms will be refined over
time if the need arises.  :-)

  Bill


On 06/01/2015 2:02 PM, Alia Atlas wrote:
> Hi Bill,
>
> On Tue, Jan 6, 2015 at 1:47 PM, William Atwood
> <william.atwood@concordia.ca <mailto:william.atwood@concordia.ca>> wrote:
>
>
>
>     On 06/01/2015 1:03 PM, Jeffrey Haas wrote:
>     >> A followup question: how can IESG evaluate a thousand or more
>     line YANG program?
>     > I think your comment is confused, but please also see the
>     discussion on
>     > ietf@ietf.org <mailto:ietf@ietf.org> regarding a third RTG area
>     director. :-)
>
>     I don't think this comment is confused at all.  It is clear to me that
>     the present approach to IETF last call at the IESG level (i.e.,
>     all the
>     Area Directors reading the document) is not going to be particularly
>     effective when the I-D consists of 1000 lines of Yang code.  This is
>     quite independent of the number of RTG area directors...
>
>     I believe that the WG chairs who are involved in Yang models at any
>     level need to signal this issue to their Area Director(s), if this has
>     not already been done.
>
>
> Do you have recommendations on how the reviews should be done?  Obviously,
> verifying that the YANG models compile and having the WG and YANG experts
> do a review is quite useful and important beforehand.   The trick with
> this is 
> frequently getting the semantics and details right; obviously, we're
> all used to
> doing long code reviews too.
>
> Regards,
> Alia 
>
>  
>
>       Bill
>
>     --
>     Dr. J.W. Atwood, Eng.             tel:   +1 (514) 848-2424 x3046
>     <tel:%2B1%20%28514%29%20848-2424%20x3046>
>     Distinguished Professor Emeritus  fax:   +1 (514) 848-2830
>     <tel:%2B1%20%28514%29%20848-2830>
>     Department of Computer Science
>        and Software Engineering
>     Concordia University EV 3.185   
>      email:william.atwood@concordia.ca
>     <mailto:email%3Awilliam.atwood@concordia.ca>
>     1455 de Maisonneuve Blvd. West   
>     http://users.encs.concordia.ca/~bill
>     <http://users.encs.concordia.ca/%7Ebill>
>     Montreal, Quebec Canada H3G 1M8
>
>     _______________________________________________
>     i2rs mailing list
>     i2rs@ietf.org <mailto:i2rs@ietf.org>
>     https://www.ietf.org/mailman/listinfo/i2rs
>
>

-- 
Dr. J.W. Atwood, Eng.             tel:   +1 (514) 848-2424 x3046
Distinguished Professor Emeritus  fax:   +1 (514) 848-2830
Department of Computer Science
   and Software Engineering
Concordia University EV 3.185     email:william.atwood@concordia.ca
1455 de Maisonneuve Blvd. West    http://users.encs.concordia.ca/~bill
Montreal, Quebec Canada H3G 1M8


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<html>
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    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    Alia,<br>
    <br>
    No, I don't have anything specific---my expertise is not in software
    evaluation.  I was just concerned that Jeffrey's comment implied
    that 3 Routing Area directors could solve this problem.<br>
    <br>
    Your response has assured me that some mechanisms are in place, and
    (given that fact) I assume that these mechanisms will be refined
    over time if the need arises.  :-)<br>
    <br>
      Bill<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 06/01/2015 2:02 PM, Alia Atlas
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAG4d1rfJL-JN42gVqOzLPubH8yvoeKXQiRQS5eZU7ZbbTXrpdQ@mail.gmail.com"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
      <div dir="ltr">
        <div class="gmail_extra">
          <div class="gmail_quote">Hi Bill,</div>
          <div class="gmail_quote"><br>
          </div>
          <div class="gmail_quote">On Tue, Jan 6, 2015 at 1:47 PM,
            William Atwood <span dir="ltr">&lt;<a
                moz-do-not-send="true"
                href="mailto:william.atwood@concordia.ca"
                target="_blank">william.atwood@concordia.ca</a>&gt;</span>
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex"><span
                class=""><br>
                <br>
                On 06/01/2015 1:03 PM, Jeffrey Haas wrote:<br>
                &gt;&gt; A followup question: how can IESG evaluate a
                thousand or more line YANG program?<br>
                &gt; I think your comment is confused, but please also
                see the discussion on<br>
                &gt; <a moz-do-not-send="true"
                  href="mailto:ietf@ietf.org">ietf@ietf.org</a>
                regarding a third RTG area director. :-)<br>
                <br>
              </span>I don't think this comment is confused at all.  It
              is clear to me that<br>
              the present approach to IETF last call at the IESG level
              (i.e., all the<br>
              Area Directors reading the document) is not going to be
              particularly<br>
              effective when the I-D consists of 1000 lines of Yang
              code.  This is<br>
              quite independent of the number of RTG area directors...<br>
              <br>
              I believe that the WG chairs who are involved in Yang
              models at any<br>
              level need to signal this issue to their Area Director(s),
              if this has<br>
              not already been done.<br>
            </blockquote>
            <div><br>
            </div>
            <div>Do you have recommendations on how the reviews should
              be done?  Obviously,</div>
            <div>verifying that the YANG models compile and having the
              WG and YANG experts</div>
            <div>do a review is quite useful and important beforehand.  
              The trick with this is </div>
            <div>frequently getting the semantics and details right;
              obviously, we're all used to</div>
            <div>doing long code reviews too.</div>
            <div><br>
            </div>
            <div>Regards,</div>
            <div>Alia </div>
            <div><br>
            </div>
            <div> </div>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
                Bill<br>
              <span class="HOEnZb"><font color="#888888"><br>
                  --<br>
                  Dr. J.W. Atwood, Eng.             tel:   <a
                    moz-do-not-send="true"
                    href="tel:%2B1%20%28514%29%20848-2424%20x3046"
                    value="+15148482424">+1 (514) 848-2424 x3046</a><br>
                  Distinguished Professor Emeritus  fax:   <a
                    moz-do-not-send="true"
                    href="tel:%2B1%20%28514%29%20848-2830"
                    value="+15148482830">+1 (514) 848-2830</a><br>
                  Department of Computer Science<br>
                     and Software Engineering<br>
                  Concordia University EV 3.185     <a
                    moz-do-not-send="true"
                    href="mailto:email%3Awilliam.atwood@concordia.ca">email:william.atwood@concordia.ca</a><br>
                  1455 de Maisonneuve Blvd. West    <a
                    moz-do-not-send="true"
                    href="http://users.encs.concordia.ca/%7Ebill"
                    target="_blank">http://users.encs.concordia.ca/~bill</a><br>
                  Montreal, Quebec Canada H3G 1M8<br>
                </font></span>
              <div class="HOEnZb">
                <div class="h5"><br>
                  _______________________________________________<br>
                  i2rs mailing list<br>
                  <a moz-do-not-send="true" href="mailto:i2rs@ietf.org">i2rs@ietf.org</a><br>
                  <a moz-do-not-send="true"
                    href="https://www.ietf.org/mailman/listinfo/i2rs"
                    target="_blank">https://www.ietf.org/mailman/listinfo/i2rs</a><br>
                </div>
              </div>
            </blockquote>
          </div>
          <br>
        </div>
      </div>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Dr. J.W. Atwood, Eng.             tel:   +1 (514) 848-2424 x3046
Distinguished Professor Emeritus  fax:   +1 (514) 848-2830
Department of Computer Science
   and Software Engineering
Concordia University EV 3.185     <a class="moz-txt-link-abbreviated" href="mailto:email:william.atwood@concordia.ca">email:william.atwood@concordia.ca</a>
1455 de Maisonneuve Blvd. West    <a class="moz-txt-link-freetext" href="http://users.encs.concordia.ca/~bill">http://users.encs.concordia.ca/~bill</a>
Montreal, Quebec Canada H3G 1M8</pre>
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</html>

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From nobody Fri Jan  9 07:06:02 2015
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Date: Fri, 9 Jan 2015 10:05:53 -0500
From: Jeffrey Haas <jhaas@pfrc.org>
To: William Atwood <william.atwood@concordia.ca>
Message-ID: <20150109150553.GK7224@pfrc>
References: <5A5B4DE12C0DAC44AF501CD9A2B01A8D2C6A3784@nkgeml506-mbx.china.huawei.com> <20150105211236.GF7224@pfrc> <CAC8QAce7csnO1=kU_GQ61fYOM=5SC2uiBhpaQqdJ8DwtmA+3bA@mail.gmail.com> <20150106180328.GI7224@pfrc> <54AC2DC6.1090001@concordia.ca> <CAG4d1rfJL-JN42gVqOzLPubH8yvoeKXQiRQS5eZU7ZbbTXrpdQ@mail.gmail.com> <54AF0A54.5050804@concordia.ca>
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Subject: Re: [i2rs] Regarding Multicast Use Cases for I2RS
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On Thu, Jan 08, 2015 at 05:53:08PM -0500, William Atwood wrote:
> No, I don't have anything specific---my expertise is not in software
> evaluation.  I was just concerned that Jeffrey's comment implied that 3
> Routing Area directors could solve this problem.

Note that I didn't say that a third AD will solve this problem.  I referred
people to the discussion about the motivations for adding one.

In general, document review in IETF should follow a well defined process
similar to what is seen in many large software organizations:
- Reviewed by those working on it. (Authors)
- Reviewed by their peers. (Working Group)
- Reviewed by targeted experts, especially for cross-area work.
  (Directorates)
- Reviewed for big-picture architecture. (IESG)

Where things have the appearance of breaking down is when there has been
insufficient review at the lowest layers.  WG chairs should not send along
documents for directorate or AD review without having some certitude about
the document being of high enough quality to do so.  In project management
parlance, they're the gatekeepers.

Yang modules, and MIBs before them, have a few interesting issues that
complicate the normal review process:
- Modeling as a discipline is something that not everyone is good at.  IETF
  tends to attract people who like working bits-on-the-wire, not management
  and operations front-ends.  
- The recognition and inherent rewards for participating in such models in
  IETF lacks quite the same level of prestige from many people's
  perspective.  Basically, "it's not sexy".
- Review of models requires not only the depth of experience in the thing
  being modeled, operations for that thing (which may not have practices if
  it is new) but also strong familiarity with the modeling language and its
  semantics.
  + Yang is new.  That's going to cause some bumps as people learn.
  + As MIBs have demonstrated, sometimes it's less whether something is
    syntactically or semantically correct, it's whether it follows a
    best-practice style.  Those styles are still evolving for Yang.

If the above hold true, the likely fixes are:
- Get many more people familiar with Yang.
- Make sure as best practices evolve that they are rapidly and widely
  disseminated.  (See rtg-yang-coord as one example.)
- Provide the same level of prestige for doing this hard work as for doing a
  new protocol.  "Egoboo"/"Karma" is a valid currency in volunteer run
  organizations such as ours, even though most of our membership tends to be
  sponsored via their jobs.

-- Jeff


From nobody Fri Jan  9 09:59:34 2015
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References: <5A5B4DE12C0DAC44AF501CD9A2B01A8D2C6A3784@nkgeml506-mbx.china.huawei.com> <20150105211236.GF7224@pfrc> <CAC8QAce7csnO1=kU_GQ61fYOM=5SC2uiBhpaQqdJ8DwtmA+3bA@mail.gmail.com> <20150106180328.GI7224@pfrc> <54AC2DC6.1090001@concordia.ca> <CAG4d1rfJL-JN42gVqOzLPubH8yvoeKXQiRQS5eZU7ZbbTXrpdQ@mail.gmail.com> <54AF0A54.5050804@concordia.ca> <20150109150553.GK7224@pfrc>
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From: Behcet Sarikaya <sarikaya2012@gmail.com>
To: Jeffrey Haas <jhaas@pfrc.org>
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Subject: Re: [i2rs] Regarding Multicast Use Cases for I2RS
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On Fri, Jan 9, 2015 at 9:05 AM, Jeffrey Haas <jhaas@pfrc.org> wrote:
> On Thu, Jan 08, 2015 at 05:53:08PM -0500, William Atwood wrote:
>> No, I don't have anything specific---my expertise is not in software
>> evaluation.  I was just concerned that Jeffrey's comment implied that 3
>> Routing Area directors could solve this problem.
>
> Note that I didn't say that a third AD will solve this problem.  I referred
> people to the discussion about the motivations for adding one.
>
> In general, document review in IETF should follow a well defined process
> similar to what is seen in many large software organizations:
> - Reviewed by those working on it. (Authors)
> - Reviewed by their peers. (Working Group)
> - Reviewed by targeted experts, especially for cross-area work.
>   (Directorates)
> - Reviewed for big-picture architecture. (IESG)
>
> Where things have the appearance of breaking down is when there has been
> insufficient review at the lowest layers.  WG chairs should not send along
> documents for directorate or AD review without having some certitude about
> the document being of high enough quality to do so.  In project management
> parlance, they're the gatekeepers.
>
> Yang modules, and MIBs before them, have a few interesting issues that
> complicate the normal review process:
> - Modeling as a discipline is something that not everyone is good at.  IETF
>   tends to attract people who like working bits-on-the-wire, not management
>   and operations front-ends.
> - The recognition and inherent rewards for participating in such models in
>   IETF lacks quite the same level of prestige from many people's
>   perspective.  Basically, "it's not sexy".
> - Review of models requires not only the depth of experience in the thing
>   being modeled, operations for that thing (which may not have practices if
>   it is new) but also strong familiarity with the modeling language and its
>   semantics.
>   + Yang is new.  That's going to cause some bumps as people learn.
>   + As MIBs have demonstrated, sometimes it's less whether something is
>     syntactically or semantically correct, it's whether it follows a
>     best-practice style.  Those styles are still evolving for Yang.
>
> If the above hold true, the likely fixes are:
> - Get many more people familiar with Yang.
> - Make sure as best practices evolve that they are rapidly and widely
>   disseminated.  (See rtg-yang-coord as one example.)
> - Provide the same level of prestige for doing this hard work as for doing a
>   new protocol.  "Egoboo"/"Karma" is a valid currency in volunteer run
>   organizations such as ours, even though most of our membership tends to be
>   sponsored via their jobs.
>


I also would like to clarify that my mail was in no way against the
Yang work being done in i2rs, I have great respect in the draft
authors, they are doing great admirable work.

Regards,

Behcet
> -- Jeff
>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs


From nobody Mon Jan 19 13:39:56 2015
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I2RS will hold an interim on Friday, January 23, 2015  10:00 am  |  Eastern
Standard Time (New York, GMT-05:00) 

Meeting time 10:00am - 11:30am ET 

 

[Please note this is Friday 1/23/2014.  All other I2RS meetings will be held
on Thursdays from 10:00am - 11:30am] 

 

The agenda for the interim is: 

 

1)      Status - 5 minutes

2)      Traceability  (25 minutes) 

http://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability

 

3)      Pub-sub requirements (25 minutes) 

 <http://datatracker.ietf.org/doc/draft-voit-i2rs-pub-sub-requirements/>
draft-voit-i2rs-pub-sub-requirements-00 - 

 

 

Join WebEx meeting 

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Meeting number:            644 737 981 

Meeting password:         wgfunsue

 

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</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>I2RS will =
hold an interim on Friday, January 23, 2015 &nbsp;10:00 am&nbsp; |&nbsp; =
Eastern Standard Time (New York, GMT-05:00) <o:p></o:p></p><p =
class=3DMsoNormal>Meeting time 10:00am &#8211; 11:30am ET =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>[Please note this is Friday 1/23/2014.&nbsp; All other =
I2RS meetings will be held on Thursdays from 10:00am &#8211; 11:30am] =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>The agenda for the interim is: <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo1'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>1)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>Status &#8211; 5 minutes<o:p></o:p></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l0 level1 =
lfo1'><![if !supportLists]><span style=3D'mso-list:Ignore'>2)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>Traceability &nbsp;(25 minutes) =
<o:p></o:p></p><p class=3DMsoListParagraph><span =
style=3D'font-size:10.0pt;font-family:"Courier New";color:black'><a =
href=3D"http://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability">htt=
p://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability</a><o:p></o:p><=
/span></p><p class=3DMsoListParagraph><span =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l0 level1 =
lfo1'><![if !supportLists]><span style=3D'mso-list:Ignore'>3)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>Pub-sub requirements (25 minutes) =
<o:p></o:p></p><p class=3DMsoListParagraph><a =
href=3D"http://datatracker.ietf.org/doc/draft-voit-i2rs-pub-sub-requireme=
nts/"><span =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif";background:#EDF=
5FF'>draft-voit-i2rs-pub-sub-requirements-00</span></a> &#8211; =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Join WebEx =
meeting <o:p></o:p></p><p =
class=3DMsoNormal>https://ietf.webex.com/ietf/j.php?MTID=3Dmad8f08fd6e99a=
dd29c20f95eb18e1f0f<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Meeting =
number: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 644 =
737 981 <o:p></o:p></p><p class=3DMsoNormal>Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
wgfunsue<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Join by phone<o:p></o:p></p><p =
class=3DMsoNormal>1-877-668-4493 Call-in toll free number =
(US/Canada)<o:p></o:p></p><p class=3DMsoNormal>1-650-479-3208 Call-in =
toll number (US/Canada)<o:p></o:p></p><p class=3DMsoNormal>Access code: =
644 737 981<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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I2RS interim on 1/22

Thursday, January 22, 2015 

10:00 am  |  Eastern Standard Time (New York, GMT-05:00)  |  1 hr 30 min 

 

Agenda: 

1) Status (5 minutes)

2)Traceability (25 minutes) 

    http://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability

 

3) Pub-sub requirements (25 minutes) 

draft-voit-i2rs-pub-sub-requirements-00 - 

 

[Total time: 55 minutes] 

 

Join WebEx meeting 

https://ietf.webex.com/ietf/j.php?MTID=ma89cdfb97b73a0c5fcafc18dd9b3ee70

 

Meeting number:            647 204 811 

Meeting password:         jefffunlife

 

Join by phone

1-877-668-4493 Call-in toll free number (US/Canada)

1-650-479-3208 Call-in toll number (US/Canada)

Access code: 647 204 811

Toll-free calling restrictions


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>I2RS =
interim on 1/22<o:p></o:p></p><p class=3DMsoNormal>Thursday, January 22, =
2015 <o:p></o:p></p><p class=3DMsoNormal>10:00 am&nbsp; |&nbsp; Eastern =
Standard Time (New York, GMT-05:00)&nbsp; |&nbsp; 1 hr 30 min =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><b>Agenda: <o:p></o:p></b></p><p class=3DMsoNormal>1) =
Status (5 minutes)<o:p></o:p></p><p class=3DMsoNormal>2)Traceability (25 =
minutes) <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;http://datatracker.ietf.org/doc=
/draft-ietf-i2rs-traceability<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>3) Pub-sub =
requirements (25 minutes) <o:p></o:p></p><p =
class=3DMsoNormal>draft-voit-i2rs-pub-sub-requirements-00 &#8211; =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>[Total time: 55 minutes] <o:p></o:p></p><p =
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meeting <o:p></o:p></p><p class=3DMsoNormal><a =
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c18dd9b3ee70</a><o:p></o:p></p><p =
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204 811 <o:p></o:p></p><p class=3DMsoNormal>Meeting =
password:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
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toll number (US/Canada)<o:p></o:p></p><p class=3DMsoNormal>Access code: =
647 204 811<o:p></o:p></p><p class=3DMsoNormal>Toll-free calling =
restrictions<o:p></o:p></p></div></body></html>
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Date: Wed, 21 Jan 2015 18:19:07 +0100
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Susan Hares <shares@ndzh.com>
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Subject: Re: [i2rs] I2RS Interim 1/22/2015 Agenda and Webex
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Susan,

I recall that at some point in time this interim was scheduled to
discuss topology work. Will this topic be on the agenda on some future
I2RS virtual interim? I know that some people not regularly following
I2RS were interested in this particular topic and I pointed them to
tomorrow's meeting (and I guess I have to send an update now, so I am
asking whether I can point them already to another virtual interim).

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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Subject: [i2rs] Design Teams on the I2RS Wiki
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The I2RS design teams for the protocol independent RIB and the protocol
independent Topology models have been formed.  

 

You can view the members of the RIB Model design team at: 

 

http://trac.tools.ietf.org/wg/i2rs/trac/wiki/RIBDesignTeam

 

The I2RS topology design team is at: 

http://trac.tools.ietf.org/wg/i2rs/trac/wiki/TopologyDesignTeams

 

If you would like to join either of these design teams, please send me a
note (shares@ndzh.com). 

 

Sue Hares 


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>The I2RS =
design teams for the protocol independent RIB and the protocol =
independent Topology models have been formed.&nbsp; <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>You can view =
the members of the RIB Model design team at: <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><a =
href=3D"http://trac.tools.ietf.org/wg/i2rs/trac/wiki/RIBDesignTeam">http:=
//trac.tools.ietf.org/wg/i2rs/trac/wiki/RIBDesignTeam</a><o:p></o:p></p><=
p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>The I2RS =
topology design team is at: <o:p></o:p></p><p class=3DMsoNormal><a =
href=3D"http://trac.tools.ietf.org/wg/i2rs/trac/wiki/TopologyDesignTeams"=
>http://trac.tools.ietf.org/wg/i2rs/trac/wiki/TopologyDesignTeams</a><o:p=
></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>If you would like to join either of these design =
teams, please send me a note (<a =
href=3D"mailto:shares@ndzh.com">shares@ndzh.com</a>). <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sue Hares =
<o:p></o:p></p></div></body></html>
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Subject: [i2rs] Topic List for I2RS interims Before IETF 92
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The topics for the interims prior to IETF are the following: 

*	1/23 - Traceability and pub/sub Document
*	2/05 - RIB Models and Topology Drafts (Part 1)
*	2/17 - Topology Drafts (Part 2) and Protocol discussion
*	2/26 - I2RS Protocol Discussion
*	3/05 - RIB Models and Topology Models 

The I2RS interims are held on these Thursdays from 10:00 - 11:30am ET. 

Please send feedback on this list of topics to the mail list or the chairs. 

Sue Hares 

 


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>The topics for the interims prior to IETF =
are the following: <o:p></o:p></span></p><ul type=3Ddisc><li =
class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo2;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>1/23 - Traceability and =
pub/sub Document<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo2;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>2/05 - RIB Models and =
Topology Drafts (Part 1)<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo2;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>2/17 - Topology Drafts =
(Part 2) and Protocol discussion<o:p></o:p></span></li><li =
class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo2;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>2/26 &#8211; I2RS =
Protocol Discussion<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo2;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>3/05 &#8211; RIB Models =
and Topology Models <o:p></o:p></span></li></ul><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>The I2RS interims are held on these =
Thursdays from 10:00 &#8211; 11:30am ET. <o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>Please send feedback on this list of topics =
to the mail list or the chairs. <o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>Sue Hares <o:p></o:p></span></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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Subject: Re: [i2rs] Topic List for I2RS interims Before IETF 92 - date correction
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Please note two of the dates on the earlier messages were in error.   The
dates below are all Thursdays. 

 

Sue 

 

From: Susan Hares [mailto:shares@ndzh.com] 
Sent: Wednesday, January 21, 2015 9:15 PM
To: i2rs@ietf.org
Cc: 'Jeffrey Haas'; Juergen Schoenwaelder
(j.schoenwaelder@jacobs-university.de)
Subject: Topic List for I2RS interims Before IETF 92 

 

The topics for the interims prior to IETF are the following: 

*	1/22 - Traceability and pub/sub Document
*	2/05 - RIB Models and Topology Drafts (Part 1)
*	2/19 - Topology Drafts (Part 2) and Protocol discussion
*	2/26 - I2RS Protocol Discussion
*	3/05 - RIB Models and Topology Models 

The I2RS interims are held on these Thursdays from 10:00 - 11:30am ET. 

Please send feedback on this list of topics to the mail list or the chairs. 

Sue Hares 

 


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Please note two of the dates on the earlier =
messages were in error. &nbsp;&nbsp;The dates below are all Thursdays. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Sue =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Susan Hares [mailto:shares@ndzh.com] <br><b>Sent:</b> Wednesday, January =
21, 2015 9:15 PM<br><b>To:</b> i2rs@ietf.org<br><b>Cc:</b> 'Jeffrey =
Haas'; Juergen Schoenwaelder =
(j.schoenwaelder@jacobs-university.de)<br><b>Subject:</b> Topic List for =
I2RS interims Before IETF 92 <o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>The topics for the interims prior to IETF =
are the following: <o:p></o:p></span></p><ul type=3Ddisc><li =
class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo3;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>1/2</span><span =
style=3D'font-family:"Times New =
Roman","serif";color:#1F497D'>2</span><span style=3D'font-family:"Times =
New Roman","serif"'> - Traceability and pub/sub =
Document<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo3;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>2/05 - RIB Models and =
Topology Drafts (Part 1)<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo3;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>2/1</span><span =
style=3D'font-family:"Times New =
Roman","serif";color:#1F497D'>9</span><span style=3D'font-family:"Times =
New Roman","serif"'> - Topology Drafts (Part 2) and Protocol =
discussion<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo3;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>2/26 &#8211; I2RS =
Protocol Discussion<o:p></o:p></span></li><li class=3DMsoNormal =
style=3D'color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;m=
so-list:l0 level1 lfo3;background:white'><span =
style=3D'font-family:"Times New Roman","serif"'>3/05 &#8211; RIB Models =
and Topology Models <o:p></o:p></span></li></ul><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>The I2RS interims are held on these =
Thursdays from 10:00 &#8211; 11:30am ET. <o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>Please send feedback on this list of topics =
to the mail list or the chairs. <o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:wh=
ite'><span style=3D'font-family:"Times New =
Roman","serif";color:black'>Sue Hares <o:p></o:p></span></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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I2RS interim on 1/22

Thursday, January 22, 2015 

10:00 am  |  Eastern Standard Time (New York, GMT-05:00)  |  1 hr 30 min 

 

Agenda: 

 

1)            Status - 5 minutes

2)            Traceability  (25 minutes) 

                draft-ietf-i2rs-traceability

3)            Pub-sub requirements (25 minutes) 

             draft-voit-i2rs-pub-sub-requirements-00 

 

[Total time: 55 minutes] 

 

Join WebEx meeting 

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Meeting number:            647 204 811 

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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>I2RS =
interim on 1/22<o:p></o:p></p><p class=3DMsoNormal>Thursday, January 22, =
2015 <o:p></o:p></p><p class=3DMsoNormal>10:00 am&nbsp; |&nbsp; Eastern =
Standard Time (New York, GMT-05:00)&nbsp; |&nbsp; 1 hr 30 min =
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class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;draft-ietf-i2rs-traceability<o:p=
></o:p></p><p =
class=3DMsoNormal>3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; Pub-sub requirements (25 minutes) <o:p></o:p></p><p =
class=3DMsoNormal>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;draft-voit-i2rs-pub-sub-requirements-00 =
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From nobody Thu Jan 22 07:40:52 2015
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From: Kent Watsen <kwatsen@juniper.net>
To: "i2rs@ietf.org" <i2rs@ietf.org>
Thread-Topic: [netmod] how YANG and NETCONF support the long running command (e.g ping)
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Date: Thu, 22 Jan 2015 15:40:17 +0000
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Subject: [i2rs] FW: [netmod] how YANG and NETCONF support the long running command (e.g ping)
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All,

Here's the email I mentioned regarding various request/response patterns
for NETCONF/RESTCONF.

Cheers,
Kent



On 11/14/14, 5:17 PM, "Kent Watsen" <kwatsen@juniper.net> wrote:

>
>
>
>Regarding the "persistent", "fragmentation" and "datastore-push" drafts,
>and related ideas floating around, I believe that there are the following
>use-cases:
>
>
>1) request for an unbounded number of periodic responses sent relatively
>frequently (ping)
>
>2) request for a large YANG config=3Dfalse list (retrieving interface
>statistics)
>
>3) request for a large blob (file transfer)
>
>4) request for an action that takes a long time to perform (network link
>performance validation)
>
>5) subscription request on subtree to receive on-change data notifications
>(config false also)
>
>
>
>
>The solution to these may or may not overlap. For instance, consider the
>following:
>
>Options for #1:
>A) use a never-ending rpc-reply; server pushes data as it becomes
>available
>B) initial response returns handle with which client polls for incremental
>results and cancels the request
>
>Options for #2:
>A) pagination, multiple rpcs to return subsets of list
>B) break response into blocks returned independently
>
>Options for #3:
>A) use a file-transfer protocol like SCP, SFTP, or FTPS
>B) use a never-ending rpc-reply; server stream data as it becomes
>available
>C) break response into blocks returned independently
>
>Options for #4:
>A) initial response returns handle which the client uses to monitor
>progress, receive the final result, and cancel the request
>
>Options for #5:
>A) use netconf notifications as is
>B) use a modified version of netconf notifications for higher throughput
>C) direct responses into a queue that the client can poll
>
>
>
>Thoughts?  Any additions?
>
>
>Thanks,
>Kent
>
>
>_______________________________________________
>netmod mailing list
>netmod@ietf.org
>https://www.ietf.org/mailman/listinfo/netmod


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The slides and minutes for the I2RS meeting are at: 

 

http://www.ietf.org/proceedings/interim/2015/01/22/i2rs/proceedings.html

 

An outgrowth of the meeting is that the working group will consider adoption
of

draft-voit-i2rs-pub-sub-requirements-00 next week. 

 

The draft-ietf-i2rs-traceability document will be revised, and enter into a
WG LC call within 3 weeks.  

 

Please read and consider these documents. 

 

Sue Hares and Jeff Haas 


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>The slides =
and minutes for the I2RS meeting are at: <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><a =
href=3D"http://www.ietf.org/proceedings/interim/2015/01/22/i2rs/proceedin=
gs.html">http://www.ietf.org/proceedings/interim/2015/01/22/i2rs/proceedi=
ngs.html</a><o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>An outgrowth of the meeting is that the working group =
will consider adoption of<o:p></o:p></p><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black'>draft-voit-i2rs-pub-sub-requirements-00 next week. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black'><o:p>&nbsp;</o:p></span></p><pre><span =
style=3D'color:black'>The draft-ietf-i2rs-traceability document will be =
revised, and enter into a WG LC call within 3 weeks.&nbsp; =
<o:p></o:p></span></pre><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Please read and consider these documents. =
<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Sue Hares and Jeff Haas =
<o:p></o:p></p></div></body></html>
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To: Susan Hares <shares@ndzh.com>
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Subject: Re: [i2rs] I2RS Interim Meeting
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On Thu, Jan 22, 2015 at 10:26 AM, Susan Hares <shares@ndzh.com> wrote:
> The slides and minutes for the I2RS meeting are at:
>
>
>
> http://www.ietf.org/proceedings/interim/2015/01/22/i2rs/proceedings.html
>
>
>
> An outgrowth of the meeting is that the working group will consider adoption
> of
>
> draft-voit-i2rs-pub-sub-requirements-00 next week.
>
>
>
> The draft-ietf-i2rs-traceability document will be revised, and enter into a
> WG LC call within 3 weeks.
>
>
>
> Please read and consider these documents.
>
>

I strongly support adoption of draft-voit-i2rs-pub-sub-requirements-00
and draft-netmod-clemm-datastore-push-00.

However, I do not see anything really I2RS-specific about
most of the requirements or any of the solution.
This is useful for all types of system data modeled in YANG.

We should only need one standard for pub/sub and push
of YANG-defined data within NETCONF-style conceptual datastores.


>
> Sue Hares and Jeff Haas
>

Andy

>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs
>


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From: "Eric Voit (evoit)" <evoit@cisco.com>
To: Andy Bierman <andy@yumaworks.com>, Susan Hares <shares@ndzh.com>
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> I strongly support adoption of draft-voit-i2rs-pub-sub-requirements-00
> and draft-netmod-clemm-datastore-push-00.
>=20
> However, I do not see anything really I2RS-specific about most of the
> requirements or any of the solution.
> This is useful for all types of system data modeled in YANG.
>=20
> We should only need one standard for pub/sub and push of YANG-defined dat=
a
> within NETCONF-style conceptual datastores.

Thanks Andy.  We authors agree with your assessment. =20

We are hoping that domain requirements can be documented in specific WGs (l=
ike the I2RS requirements).  Other WGs could also document their requiremen=
ts.  Driven by these domain requirements, we are hoping to progress a singl=
e technology specification in a TBD IETF WG willing to support the aggregat=
e set of needs.

Eric

> >
> > Sue Hares and Jeff Haas
> >
>=20
> Andy


From nobody Tue Jan 27 15:44:33 2015
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Subject: [i2rs] Does I2RS charter include both the interface to Network Controller and the interface to devices (i.e. routers)?
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I2RS charter states:

It is envisioned that users of the I2RS interfaces will be management
applications, network controllers, and user applications that make
specific demands on the network.


This statement makes me believe that I2RS charter includes both the interfa=
ce to Network Controller (i.e. North Bound Interface) and the Interface to =
devices/routers (i.e. South Bound Interface).

The interface to "Network Controller" should be more Service oriented, e.g.=
 allowing applications to indicate their desired features,  enforcing a spe=
cific QoS for some applications

The interface to "devices (routers)" should be more functional oriented, e.=
g. enabling ISIS on a specific port, or, etc.

Is it reasonable for I2RS to have two distinct layers of interfaces?

Linda Dunbar



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<p class=3D"MsoNormal">I2RS charter states:<o:p></o:p></p>
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t is envisioned that users of the I2RS interfaces will be management
<br>
applications, network controllers, and user applications that make <br>
specific demands on the network.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This statement makes me believe that I2RS charter in=
cludes both the interface to Network Controller (i.e. North Bound Interface=
) and the Interface to devices/routers (i.e. South Bound Interface).
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The interface to &#8220;Network Controller&#8221; sh=
ould be more Service oriented, e.g. allowing applications to indicate their=
 desired features, &nbsp;enforcing a specific QoS for some applications<o:p=
></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The interface to &#8220;devices (routers)&#8221; sho=
uld be more functional oriented, e.g. enabling ISIS on a specific port, or,=
 etc.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Is it reasonable for I2RS to have two distinct layer=
s of interfaces?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Linda Dunbar<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Interface to the Routing System Working Group of the IETF.

        Title           : Routing Information Base Info Model
        Authors         : Nitin Bahadur
                          Ron Folkes
                          Sriganesh Kini
                          Jan Medved
	Filename        : draft-ietf-i2rs-rib-info-model-05.txt
	Pages           : 26
	Date            : 2015-01-27

Abstract:
   Routing and routing functions in enterprise and carrier networks are
   typically performed by network devices (routers and switches) using a
   routing information base (RIB).  Protocols and configuration push
   data into the RIB and the RIB manager installs state into the
   hardware; for packet forwarding.  This draft specifies an information
   model for the RIB to enable defining a standardized data model.  Such
   a data model can be used to define an interface to the RIB from an
   entity that may even be external to the network device.  This
   interface can be used to support new use-cases being defined by the
   IETF I2RS WG.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-info-model/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-i2rs-rib-info-model-05

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-i2rs-rib-info-model-05


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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Date: Tue, 27 Jan 2015 17:56:21 -0800
From: Nitin Bahadur <nitin_bahadur@yahoo.com>
To: <i2rs@ietf.org>
Message-ID: <D0ED8153.24035%nitin_bahadur@yahoo.com>
Thread-Topic: [i2rs] I-D Action: draft-ietf-i2rs-rib-info-model-05.txt
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This version of the draft adds some clarification text (Section 6.1) and
more usage examples (Section 7.2.6)=8A.based on offline conversations with
Lixing.

Thanks
Nitin



On 1/27/15, 5:51 PM, "internet-drafts@ietf.org" <internet-drafts@ietf.org>
wrote:

>
>A New Internet-Draft is available from the on-line Internet-Drafts
>directories.
> This draft is a work item of the Interface to the Routing System Working
>Group of the IETF.
>
>        Title           : Routing Information Base Info Model
>        Authors         : Nitin Bahadur
>                          Ron Folkes
>                          Sriganesh Kini
>                          Jan Medved
>	Filename        : draft-ietf-i2rs-rib-info-model-05.txt
>	Pages           : 26
>	Date            : 2015-01-27
>
>Abstract:
>   Routing and routing functions in enterprise and carrier networks are
>   typically performed by network devices (routers and switches) using a
>   routing information base (RIB).  Protocols and configuration push
>   data into the RIB and the RIB manager installs state into the
>   hardware; for packet forwarding.  This draft specifies an information
>   model for the RIB to enable defining a standardized data model.  Such
>   a data model can be used to define an interface to the RIB from an
>   entity that may even be external to the network device.  This
>   interface can be used to support new use-cases being defined by the
>   IETF I2RS WG.
>
>
>The IETF datatracker status page for this draft is:
>https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-info-model/
>
>There's also a htmlized version available at:
>http://tools.ietf.org/html/draft-ietf-i2rs-rib-info-model-05
>
>A diff from the previous version is available at:
>http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-i2rs-rib-info-model-05
>
>
>Please note that it may take a couple of minutes from the time of
>submission
>until the htmlized version and diff are available at tools.ietf.org.
>
>Internet-Drafts are also available by anonymous FTP at:
>ftp://ftp.ietf.org/internet-drafts/
>
>_______________________________________________
>i2rs mailing list
>i2rs@ietf.org
>https://www.ietf.org/mailman/listinfo/i2rs


