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From: Dhruv Dhody <dhruv.ietf@gmail.com>
To: Ina Minei <ina@juniper.net>
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Subject: Re: [Pce] Comments on draft-ietf-pce-stateful-pce-02
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Hi Ina,

Thanks for your reply, find the response inline, also I have a few comments
on -03 version of the draft which is at the end of this mail.

Dhruv


On Sat, Mar 23, 2013 at 5:40 AM, Ina Minei <ina@juniper.net> wrote:

>  Dhruv, ****
>
> Thank you for the review. Please see answers inline below ###.
>
> Ina
>
> *From:* pce-bounces@ietf.org [mailto:pce-bounces@ietf.org] *On Behalf Of *Dhruv
> Dhody
>
> *Sent:* Monday, March 11, 2013 8:03 AM
> *To:* pce@ietf.org
> *Subject:* [Pce] Comments on draft-ietf-pce-stateful-pce-02****
>
> ** **
>
> Hi,****
>
> Please find the review comments for this draft (there is some overlap with
> comments from Jon, Cyril etc)
> **
>
> **
>
> *Major Comments:*
> **
>
> **
>
> (1) State synchronisation:  ****
>
> a. PCE should determine the synchronisation is over as soon as possible,
> as updates, request etc are blocked during synchronisation. Maybe the last
> report message can have SYNC=0 (similar to F - fragmentation bit in RP
> object) or as Jon suggested an empty report but then the RBNF of PCRpt
> should support it. ****
>
> ### Please see version 03 of the draft.****
>
> ** **
>
> b. I also dont like the use of word 'purge' with respect to old or stale
> entries during PCEP session up/down. A mechanism to mark LSP entries as
> stale and waiting for them to be refreshed after session up and deleted (or
> 'purged') only after some timer expiry.****
>
> ### Please see version 03 of the draft. ****
>
> ** **
>
> ** **
>
> (2) The PCRpt Message:****
>
> <state-report> ::= <LSP>[<path-list>] Where: <path-list>::=<path>[<path-list>].
> Is this to specify primary and backup? In which case the status of the
> paths needs to reported separately in case of standby but we have only one
> LSP object here to specify the operational status. Also LSP-ID of primary
> and backup would be different. ****
>
> ** **
>
> Also applicable to PCUpd message. ****
>
> I feel the backup path should be updated and reported separately with each
> having there own encoding for LSP object. ****
>
> ### Clarification on backup paths will be done in the protection doc. I
> agree with you the text needs to be cleaned up in the base spec, will do so
> in 04. ****
>
> ** **
>
> (3) Node Identifier TLV****
>
> PCC may use address that survives the session restart (Loopback, MPLS
> LSR-ID etc), i suggest we mention this in the document and provide guidance
> to implementers to do this if possible. ****
>
> ### the node-id (now renamed to predundancy-group-id) will be further
> clarified in version 04****
>
> ** **
>
> (4) LSP Object: ****
>
> a. What is relationship between the LSP-ID in LSP object and the LSP-ID in
> LSP Identifier TLVs?****
>
> ### The lsp-id in the lsp object was renamed to plsp-id to avoid such
> confusion.
>
*[DD]: Rename is good, but i hope relationship between the PLSP-ID and the
LSP-ID (signalled by RSVP) can be explicitly mentioned. This should
especially be clarified in the case of MBB. *

>   **
>
> b. There is no mechanism to report the 'pending' state right now? O-Bit as
> zero will mean down, not pending. ****
>
> ### The O-bit will be revisited in version 04.****
>
> ** **
>
> (5) Make-Before-Break: ****
>
> There is a need to clarify how MBB is achieved, what is the LSP-ID in case
> of updates and reports? ****
>
> ### Please see version 03. ****
>
>
>
*[DD]: The updated text though in the right direction is still missing key
information. I hope the next version clarifies it further. *

> ****
>
> ** **
>
> *Minor Comments: *****
>
> (1) Abstract/Introduction****
>
> There is a consistent use of phrase "between and across PCEP sessions".
> Can you clarify? ****
>
> ### LSPs may move from one PCE to another.****
>
> ** **
>
> (2) Re-look the terminology section as some terms are no longer in the
> document. ****
>
> ### Could you send the correction?****
>
> **
>
*[DD]: Just removal of MPLS TE Global Default Restoration & MPLS TE Global
Path Protection should do the trick. Both terms are no longer used in this
document. *

> **
>
> (3) LSP Protection ****
>
> In case of delegated PCE, the desired protection may also be configured at
> PCC and the active stateful PCE should support it, the stateful PCE having
> full control over the protection / restoration settings can only be
> achieved with instantiation capability and should be out of scope from this
> document. ****
>
> ### The whole discussion on protection belongs in a separate document.****
>
> ** **
>
> (4) Delegation****
>
> a. The wording "an LSP may be delegated to one or more PCEs." .. this is
> incorrect, from the reading it looks as if this is happening at the same
> time. ****
>
> ### To a single PCE, text is clarified in 03.****
>
> ** **
>
> b. Active stateful PCE LSP Update (sec 5.6.2)****
>
> OLD:****
>
> A PCC may choose to compress LSP State Updates to only reflect the most
> up to date state, as discussed in the previous section. ****
>
> NEW:****
>
> A PCC may choose to compress LSP State Reports to only reflect the most
> up to date state, as discussed in the previous section. ****
>
> ### Actually, I think we mean updates, not reports (if receiving multiple
> updates, may choose to do state compression during processing)****
>
> **
>
*[DD]: Okay I understand, it mean that PCC is only taking the latest Update
into consideration; now i am wondering can PCC choose to compress reports
and send the most upto date report? (skip sending pending if not yet send;
or in case of multiple up-down only send the latest state)  *

> **
>
> (5) Symbolic Path Name TLV****
>
> The length of this TLV must be greater then 0 as well as multiple of four.
> ****
>
> ### I think this is not necessary to specify in words, the figure should
> be sufficient.
>
*[DD]: In most cases yes, but this is a case of variable length we must
make sure extra padding is added and the TLV is aligned. You can take your
cue from other RFC where variable length TLV exists say RFC4920; RFC6001
etc  *

> ****
>
> ** **
>
> (6) LSP state DB version TLV (page 40, para 2)****
>
> "Since a PCE does not send LSP updates to a PCC, a PCC should never
> encounter this TLV". LSP updates here can be easily confused with the PCUpd
> messages. Kindly reword this. ****
>
> ### Will do.****
>
> ** **
>
> Regards,****
>
> Dhruv
>
*
*
*
*
*Few more comments on the -03 version: *
*
*
*(1) Section 5.5.2 (Revocation of delegated LSP)*
*
*
*When a PCC revokes a delegated LSP, PCC immediately clears the LSP state
received from this PCE. But we should apply Make-Before-Break here as well,
that is while the PCC delegates to another PCE or keep the LSP with itself,
the LSP should not be teardown immediately.   *
*
*
*(2) Modification of Tunnel configuration at PCC for a delegated LSP. *
*
*
*Incase of manual config change (say bandwidth, priority) at PCC, how the
new LSP parameters to be reported to the PCE (maybe a separate delegation
request with new PLSP-ID) eventually make-before-break should
be applied here as well. When the text for MBB is added in detail, this
could also be considered. *
*
*
*(3) Section 6.1 (The PCRpt Message)*
*
*
*Please consider the comments given for
**draft-crabbe-pce-stateful-pce-mpls-te-00
regarding the PCRpt message here as well** [**
http://www.ietf.org/mail-archive/web/pce/current/msg03007.html**]. *
*
*
*Thanks! *
*
*
*Dhruv*
* *

--14dae934117745403a04d94f2783
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<div dir=3D"ltr">Hi Ina,<div><br></div><div>Thanks for your reply, find the=
 response inline, also I have a few comments on -03 version of the draft wh=
ich is at the end of this mail.</div><div><br></div><div>Dhruv=A0</div><div=
 class=3D"gmail_extra">
<br><br><div class=3D"gmail_quote">On Sat, Mar 23, 2013 at 5:40 AM, Ina Min=
ei <span dir=3D"ltr">&lt;<a href=3D"mailto:ina@juniper.net" target=3D"_blan=
k">ina@juniper.net</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;p=
adding-left:1ex">





<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">Dhruv,
<u></u><u></u></span></p>
<p><span style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-=
size:11pt">Thank you for the review. Please see answers inline below ###.</=
span><br></p>
<p><span style=3D"color:rgb(31,73,125);font-family:Calibri,sans-serif;font-=
size:11pt">Ina</span><br></p>
<p><b><span style=3D"font-size:10pt;font-family:Tahoma,sans-serif">From:</s=
pan></b><span style=3D"font-size:10pt;font-family:Tahoma,sans-serif"> <a hr=
ef=3D"mailto:pce-bounces@ietf.org" target=3D"_blank">pce-bounces@ietf.org</=
a> [mailto:<a href=3D"mailto:pce-bounces@ietf.org" target=3D"_blank">pce-bo=
unces@ietf.org</a>]
<b>On Behalf Of </b>Dhruv Dhody</span><br></p><div style=3D"border-style:so=
lid none none;border-top-color:rgb(181,196,223);border-top-width:1pt;paddin=
g:3pt 0in 0in"><p><span style=3D"font-size:10pt;font-family:Tahoma,sans-ser=
if">
<b>Sent:</b> Monday, March 11, 2013 8:03 AM<br>
<b>To:</b> <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@ietf.org</=
a><br>
<b>Subject:</b> [Pce] Comments on draft-ietf-pce-stateful-pce-02<u></u><u><=
/u></span></p>
</div>
<p><u></u>=A0<u></u></p>
<div><div>
<p>Hi,<u></u><u></u></p>
<div>
<p>Please find the review comments for this draft (there is some overlap wi=
th comments from Jon, Cyril etc)<br><u></u></p></div><div><p><u></u></p>
</div>
<div>
<p><b><u>Major Comments:</u></b><br><u></u></p></div><div><p><u></u></p>
</div>
<div>
<p>(1) State synchronisation: =A0<u></u><u></u></p>
</div>
<div>
<p>a. PCE should determine the synchronisation is over as soon as possible,=
 as updates, request etc are blocked during synchronisation. Maybe the last=
 report message can have SYNC=3D0 (similar to F - fragmentation bit in RP o=
bject) or as Jon
 suggested an empty report but then the RBNF of PCRpt should support it.=A0=
<span style=3D"color:rgb(31,73,125)"><u></u><u></u></span></p>
</div>
</div><div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### Please see version 03 of the draft.<u></u><u></u></span></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)"><u></u>=A0<u></u></span></p>
</div>
<div><div>
<p>b. I also dont like the use of word &#39;purge&#39; with respect to old =
or stale entries during PCEP session up/down. A mechanism to mark LSP entri=
es as stale and waiting for them to be refreshed after session up and delet=
ed (or &#39;purged&#39;) only
 after some timer expiry.<span style=3D"color:rgb(31,73,125)"><u></u><u></u=
></span></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### Please see version 03 of the draft.
<u></u><u></u></span></p>
</div><div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p>(2) The PCRpt Message:<u></u><u></u></p>
</div>
<div>
<p>&lt;state-report&gt; ::=3D &lt;LSP&gt;[&lt;path-list&gt;]=A0Where:=A0<sp=
an>&lt;path-list&gt;::=3D&lt;path&gt;[&lt;path-list&gt;]. Is this to specif=
y primary and backup? In which case the status of the paths needs to report=
ed=A0separately=A0in case of standby but we
 have only one LSP object here to specify the operational status. Also LSP-=
ID of primary and backup would be different.=A0</span><u></u><u></u></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p><span>Also applicable to PCUpd message.</span>=A0<u></u><u></u></p>
</div>
</div><div><div>
<p><span>I feel the backup path should be updated and reported=A0separately=
=A0with each having there own encoding for LSP object.=A0</span><u></u><u><=
/u></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### Clarification on backup paths will be done in the prot=
ection doc. I agree with you the text needs to be cleaned up in the base sp=
ec, will do so in 04.
<u></u><u></u></span></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p><span>(3) Node Identifier TLV</span><u></u><u></u></p>
</div>
<div><div>
<p><span>PCC may use address that survives the session restart (Loopback, M=
PLS LSR-ID etc), i suggest we mention this in the document and provide guid=
ance to implementers to do this if possible.=A0</span><u></u><u></u></p>


</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### the node-id (now renamed to predundancy-group-id) will=
 be further clarified in version 04<u></u><u></u></span></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p><span>(4) LSP Object:=A0</span><u></u><u></u></p>
</div>
<div><div>
<p><span>a. What is relationship between the LSP-ID in LSP object and the L=
SP-ID in LSP Identifier TLVs?</span><u></u><u></u></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### The lsp-id in the lsp object was renamed to plsp-id to=
 avoid such confusion.</span></p></div></div></div></div></blockquote>
<div><b><font color=3D"#741b47">[DD]: Rename is good, but i hope relationsh=
ip between the PLSP-ID and the LSP-ID (signalled by RSVP) can be explicitly=
 mentioned. This should especially be clarified in the case of MBB.=A0</fon=
t></b></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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>

<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">=A0=A0<u></u></span></p>
</div><div>
<div>
<p><span>b. There is no=A0mechanism=A0to report the &#39;pending&#39; state=
 right now? O-Bit as zero will mean down, not pending.=A0</span><u></u><u><=
/u></p>
</div>
</div><div>
<p><span style=3D"color:rgb(31,73,125)">### The O-bit will be revisited in =
version 04.<u></u><u></u></span></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)"><u></u>=A0<u></u></span></p>
</div>
<div>
<p>(5) Make-Before-Break:=A0<u></u><u></u></p>
</div>
<div><div>
<p>There is a need to clarify how MBB is achieved, what is the LSP-ID in ca=
se of updates and reports?=A0<u></u><u></u></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### Please see version 03.
<u></u><u></u></span></p>
</div>
<div>
<p>=A0</p></div></div></div></div></blockquote><div><b><font color=3D"#741b=
47">[DD]: The updated text though in the right direction is still missing k=
ey information. I hope the next version clarifies it further.=A0</font></b>=
</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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>

<p><u></u><u></u></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p><b><u>Minor Comments:=A0</u></b><u></u><u></u></p>
</div>
<div>
<p>(1) Abstract/Introduction<u></u><u></u></p>
</div>
<div><div>
<p>There is a consistent use of phrase &quot;between and across PCEP sessio=
ns&quot;. Can you clarify?=A0<span style=3D"color:rgb(31,73,125)"><u></u><u=
></u></span></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### LSPs may move from one PCE to another.<u></u><u></u></=
span></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div><div>
<p>(2) Re-look the terminology section as some terms are no longer in the d=
ocument.=A0<u></u><u></u></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### Could you send the correction?<u></u><u></u></span></p=
>
</div>
<div>
<p><u></u>=A0</p></div></div></div></div></blockquote><div><b><font color=
=3D"#741b47">[DD]: Just removal of MPLS TE Global=A0Default=A0Restoration &=
amp; MPLS TE Global Path Protection should do the trick. Both terms are no =
longer used in this document.=A0</font></b></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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>
<p><u></u></p>
</div>
<div>
<p>(3) LSP Protection=A0<u></u><u></u></p>
</div>
<div><div>
<p>In case of delegated PCE, the desired protection may also be configured =
at PCC and the active stateful PCE should support it, the stateful PCE havi=
ng full control over the protection / restoration settings can only be achi=
eved with instantiation
 capability and should be out of scope from this document.=A0<u></u><u></u>=
</p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### The whole discussion on protection belongs in a separa=
te document.<u></u><u></u></span></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p>(4)=A0Delegation<u></u><u></u></p>
</div>
<div><div>
<p>a. The wording &quot;an LSP may be delegated to one or more PCEs.&quot; =
.. this is incorrect, from the reading it looks as if this is happening at =
the same time.=A0<u></u><u></u></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### To a single PCE, text is clarified in 03.<u></u><u></u=
></span></p>
</div><div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p>b. Active stateful PCE LSP Update (sec 5.6.2)<u></u><u></u></p>
</div>
<div>
<p>OLD:<u></u><u></u></p>
</div>
<div>
<p>A PCC=A0may choose to compress LSP State Updates to only reflect the mos=
t up=A0to date state, as discussed in the previous section.=A0<u></u><u></u=
></p>
</div>
<div>
<p>NEW:<u></u><u></u></p>
</div>
</div><div><div>
<div>
<p>A PCC=A0may choose to compress LSP State Reports to only reflect the mos=
t up=A0to date state, as discussed in the previous section.=A0<u></u><u></u=
></p>
</div>
</div><div>
<p><span style=3D"color:rgb(31,73,125)">### Actually, I think we mean updat=
es, not reports (if receiving multiple updates, may choose to do state comp=
ression during processing)<u></u><u></u></span></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)"><u></u>=A0</span></p></div></div></div></div></div></blockquote>=
<div><b><font color=3D"#741b47">[DD]: Okay I understand, it mean that PCC i=
s only taking the latest Update into consideration; now i am wondering can =
PCC choose to compress reports and send the most upto date report? (skip se=
nding pending if not yet send; or in case of multiple up-down only send the=
 latest state) =A0</font></b>=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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>

<div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:=
rgb(31,73,125)"><u></u></span></p>
</div><div>
<div>
<p>(5) Symbolic Path Name TLV<u></u><u></u></p>
</div>
</div><div><div>
<p>The length of this TLV must be greater then 0 as well as multiple of fou=
r.=A0<u></u><u></u></p>
</div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color=
:rgb(31,73,125)">### I think this is not necessary to specify in words, the=
 figure should be sufficient.</span></p></div></div></div></div>
</div></blockquote><div><b><font color=3D"#741b47">[DD]: In most cases yes,=
 but this is a case of variable length we must make sure extra padding is a=
dded and the TLV is aligned. You can take your cue from other RFC where var=
iable length TLV exists say RFC4920; RFC6001 etc =A0</font></b></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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>

<div><p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:=
rgb(31,73,125)"><u></u><u></u></span></p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
</div><div>
<div>
<p>(6) LSP state DB version TLV (page 40, para 2)<u></u><u></u></p>
</div>
<div>
<p>&quot;Since a PCE does not send LSP updates to a PCC, a PCC should never=
 encounter this TLV&quot;.=A0LSP updates here can be easily confused with t=
he PCUpd messages. Kindly reword this.=A0<u></u><u></u></p>
</div>
</div><div>
<p><span style=3D"color:rgb(31,73,125)">### Will do.</span><u></u><u></u></=
p>
</div>
<div>
<p><u></u>=A0<u></u></p>
</div>
<div>
<p>Regards,<u></u><u></u></p>
</div>
<div>
<p>Dhruv</p></div></div></div></div></blockquote><div><b><font color=3D"#74=
1b47"><br></font></b></div><div><b><font color=3D"#741b47"><br></font></b><=
/div><div><b><font color=3D"#741b47">Few more comments on the -03 version:=
=A0</font></b></div>

<div><b><font color=3D"#741b47"><br></font></b></div><div><b><font color=3D=
"#741b47">(1) Section 5.5.2 (Revocation of delegated LSP)</font></b></div><=
div><b><font color=3D"#741b47"><br></font></b></div><div><b><font color=3D"=
#741b47">When a PCC revokes a delegated LSP, PCC immediately clears the LSP=
 state received from this PCE. But we should apply Make-Before-Break here a=
s well, that is while the PCC delegates to another PCE or keep the LSP with=
 itself, the LSP should not be teardown immediately. =A0=A0</font></b></div=
>

<div><b><font color=3D"#741b47"><br></font></b></div><div style><b><font co=
lor=3D"#741b47">(2) Modification of Tunnel configuration at PCC for a deleg=
ated LSP.=A0</font></b></div><div style><b><font color=3D"#741b47"><br></fo=
nt></b></div>
<div style><b><font color=3D"#741b47">Incase of manual config change (say b=
andwidth, priority) at PCC, how the new LSP parameters to be reported to th=
e PCE (maybe a=A0separate=A0delegation request with new PLSP-ID)=A0eventual=
ly=A0make-before-break should be=A0applied=A0here as well. When the text fo=
r MBB is added in=A0detail, this could also be considered.=A0</font></b></d=
iv>
<div style><b><font color=3D"#741b47"><br></font></b></div><div style><b><f=
ont color=3D"#741b47">(3) Section 6.1 (The PCRpt Message)</font></b></div><=
div style><b><font color=3D"#741b47"><br></font></b></div><div style><b><fo=
nt color=3D"#741b47">Please consider the comments given for=A0</font></b><f=
ont color=3D"#741b47"><b>draft-crabbe-pce-stateful-pce-mpls-te-00 regarding=
 the PCRpt message here as well</b></font><b><font color=3D"#741b47">=A0[</=
font></b><font color=3D"#741b47"><b><a href=3D"http://www.ietf.org/mail-arc=
hive/web/pce/current/msg03007.html">http://www.ietf.org/mail-archive/web/pc=
e/current/msg03007.html</a></b></font><b><font color=3D"#741b47">].=A0</fon=
t></b></div>
<div style><b><font color=3D"#741b47"><br></font></b></div><div style><b><f=
ont color=3D"#741b47">Thanks!=A0</font></b></div><div style><b><font color=
=3D"#741b47"><br></font></b></div><div style><b><font color=3D"#741b47">Dhr=
uv</font></b></div>
<div style><b><font color=3D"#741b47">=A0</font></b></div><div style><br></=
div><div style><br></div></div></div></div>

--14dae934117745403a04d94f2783--

From adrian@olddog.co.uk  Tue Apr  2 05:01:57 2013
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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Hi working group,

In Orlando you discussed a paragraph for a charter revision.

The work doesn't stop there!

In order to officially recharter I need to have the agreed text sent to me as a
formal request by the chairs, and I need to see that the WG has consensus behind
the text.

Thanks,
Adrian


From ietf-ipr@ietf.org  Tue Apr  2 08:54:44 2013
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Subject: [Pce] IPR Disclosure: Juniper's Statement of IPR related to	draft-ietf-pce-stateful-pce-03
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Dear Edward Crabbe, Jan Medved, Robert Varga, Ina Minei:

 An IPR disclosure that pertains to your Internet-Draft entitled "PCEP
Extensions for Stateful PCE" (draft-ietf-pce-stateful-pce) was submitted to=
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IETF Secretariat on 2013-04-01 and has been posted on the "IETF Page of
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A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
 This draft is a work item of the Path Computation Element Working Group of=
 the IETF.

	Title           : PCEP Extension for WSON Routing and Wavelength Assignment
	Author(s)       : Young Lee
                          Ramon Casellas
	Filename        : draft-ietf-pce-wson-rwa-ext-00.txt
	Pages           : 22
	Date            : 2013-03-26

Abstract:
   This draft provides the Path Computation Element communication
   Protocol (PCEP) extensions for the support of Routing and Wavelength
   Assignment (RWA) in Wavelength Switched Optical Networks (WSON).
   Lightpath provisioning in WSONs requires a routing and wavelength
   assignment (RWA) process.  From a path computation perspective,
   wavelength assignment is the process of determining which wavelength
   can be used on each hop of a path and forms an additional routing
   constraint to optical light path computation.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-wson-rwa-ext

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-pce-wson-rwa-ext-00


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


From daniel@olddog.co.uk  Tue Apr  2 12:43:25 2013
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From: "Daniel King" <daniel@olddog.co.uk>
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Subject: [Pce] Inter-domain P2MP PCEP Extensions
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Hi PCE WG, 

 

As mentioned at IETF86 in Orlando, the authors of the inter-domain P2MP
extensions for PCEP have slimmed down the document significantly and we
would appreciate (especially vendor) feedback on the document as we prepare
for Last Call. The draft can be found at the URL below:

 

http://tools.ietf.org/html/draft-ietf-pce-pcep-inter-domain-p2mp-procedures-
03

 

The key review questions might be:

 

1. Does the document make sense (scope, requirements and general
readability)?

 

2. Is there adequate detail for implementation?  

 

3. Did we miss any impact on existing PCEP function?

 

4. Suitable manageability considerations?

 

5. Missing any obvious or useful references?

 

Br, Dan. 


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	{font-family:Calibri;
	panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
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	{margin:0cm;
	margin-bottom:.0001pt;
	font-size:11.0pt;
	font-family:"Calibri","sans-serif";
	mso-fareast-language:EN-US;}
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	font-family:"Calibri","sans-serif";
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	{mso-style-type:personal-compose;
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--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</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-GB =
link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal>Hi PCE WG, <o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>As mentioned =
at IETF86 in Orlando, the authors of the inter-domain P2MP extensions =
for PCEP have slimmed down the document significantly and we would =
appreciate (especially vendor) feedback on the document as we prepare =
for Last Call. The draft can be found at the URL below:<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><a =
href=3D"http://tools.ietf.org/html/draft-ietf-pce-pcep-inter-domain-p2mp-=
procedures-03">http://tools.ietf.org/html/draft-ietf-pce-pcep-inter-domai=
n-p2mp-procedures-03</a><o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>The key =
review questions might be:<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>1. Does the =
document make sense (scope, requirements and general =
readability)?<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>2. Is there adequate detail for implementation? =
&nbsp;<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>3. Did we miss any impact on existing PCEP =
function?<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>4. Suitable manageability =
considerations?<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>5. Missing =
any obvious or useful references?<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Br, Dan. =
<o:p></o:p></p></div></body></html>
------=_NextPart_000_0372_01CE2FE2.B57485F0--


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From: Ina Minei <ina@juniper.net>
To: "Jan Medved (jmedved)" <jmedved@cisco.com>, "pce@ietf.org" <pce@ietf.org>
Thread-Topic: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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Subject: Re: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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This is useful and straightforward functionality that is much needed for a =
deployment and completes the solution.

I support this draft's adoption as a WG document (but I guess we will wait =
for the chairs to send the official poll, right?)

Ina=20

-----Original Message-----
From: pce-bounces@ietf.org [mailto:pce-bounces@ietf.org] On Behalf Of Jan M=
edved (jmedved)
Sent: Wednesday, March 27, 2013 3:49 PM
To: pce@ietf.org
Subject: [Pce] Stateful PCE Capability discovery draft: request for review =
& adoption as a WG document

Dear PCE'rs,

can you please review draft-sivabalan-pce-disco-stateful and send your comm=
ents to the list? The draft is at: http://datatracker.ietf.org/doc/draft-si=
vabalan-pce-disco-stateful/.

Also, can you please let us know if you are in favor/opposed to adopting dr=
aft-sivabalan-pce-disco-stateful as a PCE WG document?=20



Thanks a lot in advance,
Siva and Jan
_______________________________________________
Pce mailing list
Pce@ietf.org
https://www.ietf.org/mailman/listinfo/pce



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Subject: Re: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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--14dae93408e79534ca04d977b15f
Content-Type: text/plain; charset=ISO-8859-1

Hi,

I agree that, it is a needed functionality.

*Question on Process - *
Does this belong in a separate ID or better suited in the *
ietf-pce-stateful-pce* as before?
I am taking cue from other RFC that added new capability like RFC6006.

*Few comments -
*
(1) Bit 9, 10 are already used
9Global Concurrent Optimization (GCO)[RFC5557<http://www.iana.org/go/rfc5557>
]10P2MP path computation[RFC6006 <http://www.iana.org/go/rfc6006>](2) Since
both PCEP open message and IGP PCE discovery can be used to notify PCE
stateful nature, some text should be added to handle it, For ex how should
the implementation behave if there is a difference in the capability
between what PCC learned via  IGP flooding and open message?

(3) BGP-LS
   A PCC could listen to IGP updates, or use other mechanisms that carry

   IGP information to interested clients, such as BGP-LS
   ([I-D.ietf-idr-ls-distribution]).

Can BGP-LS be used to advertise PCE? As far as i remember it allow the
TE information to be carried in BGP and not PCE Discovery TLVs?

Jan: Since you are the author of BGP-LS, maybe you can clarify.


Dhruv




On Wed, Apr 3, 2013 at 9:38 PM, Ina Minei <ina@juniper.net> wrote:

> This is useful and straightforward functionality that is much needed for a
> deployment and completes the solution.
>
> I support this draft's adoption as a WG document (but I guess we will wait
> for the chairs to send the official poll, right?)
>
> Ina
>
> -----Original Message-----
> From: pce-bounces@ietf.org [mailto:pce-bounces@ietf.org] On Behalf Of Jan
> Medved (jmedved)
> Sent: Wednesday, March 27, 2013 3:49 PM
> To: pce@ietf.org
> Subject: [Pce] Stateful PCE Capability discovery draft: request for review
> & adoption as a WG document
>
> Dear PCE'rs,
>
> can you please review draft-sivabalan-pce-disco-stateful and send your
> comments to the list? The draft is at:
> http://datatracker.ietf.org/doc/draft-sivabalan-pce-disco-stateful/.
>
> Also, can you please let us know if you are in favor/opposed to adopting
> draft-sivabalan-pce-disco-stateful as a PCE WG document?
>
>
>
> Thanks a lot in advance,
> Siva and Jan
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce
>
>
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce
>

--14dae93408e79534ca04d977b15f
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><font face=3D"verdana, sans-serif" size=3D"1">Hi,</font><d=
iv><font face=3D"verdana, sans-serif" size=3D"1"><br></font></div><div><fon=
t face=3D"verdana, sans-serif" size=3D"1">I agree that, it is a needed func=
tionality.=A0</font></div>
<div><font face=3D"verdana, sans-serif" size=3D"1"><br></font></div><div><f=
ont face=3D"verdana, sans-serif" size=3D"1"><b><u>Question on Process -=A0<=
/u></b></font></div><div><font face=3D"verdana, sans-serif" size=3D"1">Does=
 this belong in a=A0separate=A0ID or better suited in the=A0<b>ietf-pce-sta=
teful-pce</b> as before?</font><span style=3D"font-family:verdana,sans-seri=
f;font-size:x-small">=A0</span></div>
<div><span style=3D"font-family:verdana,sans-serif;font-size:x-small">I am =
taking cue from other RFC that added new capability like RFC6006.=A0</span>=
<br></div><div><div><font face=3D"verdana, sans-serif" size=3D"1"><br></fon=
t></div>
<div><font face=3D"verdana, sans-serif" size=3D"1"><b><u>Few comments -=A0<=
br></u></b></font><div><span style=3D"font-family:verdana,sans-serif;font-s=
ize:x-small">(1) Bit 9, 10 are already used =A0</span><br></div><div style>=
<table class=3D"" id=3D"table-ospfv2-parameters-14" style=3D"border-collaps=
e:collapse;border:1px solid rgb(145,150,153);margin:1em;color:rgb(0,0,0)">
<tbody><tr><td align=3D"center" style=3D"border:1px solid rgb(145,150,153);=
padding-left:0.5em;padding-right:0.5em;vertical-align:top"><font face=3D"ve=
rdana, sans-serif" size=3D"1">9</font></td><td style=3D"border:1px solid rg=
b(145,150,153);padding-left:0.5em;padding-right:0.5em;vertical-align:top">
<font face=3D"verdana, sans-serif" size=3D"1">Global Concurrent Optimizatio=
n (GCO)</font></td><td style=3D"border:1px solid rgb(145,150,153);padding-l=
eft:0.5em;padding-right:0.5em;vertical-align:top"><font face=3D"verdana, sa=
ns-serif" size=3D"1">[<a href=3D"http://www.iana.org/go/rfc5557">RFC5557</a=
>]</font></td>
</tr><tr><td align=3D"center" style=3D"border:1px solid rgb(145,150,153);pa=
dding-left:0.5em;padding-right:0.5em;vertical-align:top"><font face=3D"verd=
ana, sans-serif" size=3D"1">10</font></td><td style=3D"border:1px solid rgb=
(145,150,153);padding-left:0.5em;padding-right:0.5em;vertical-align:top">
<font face=3D"verdana, sans-serif" size=3D"1">P2MP path computation</font><=
/td><td style=3D"border:1px solid rgb(145,150,153);padding-left:0.5em;paddi=
ng-right:0.5em;vertical-align:top"><font face=3D"verdana, sans-serif" size=
=3D"1">[<a href=3D"http://www.iana.org/go/rfc6006">RFC6006</a>]</font></td>
</tr></tbody></table><font face=3D"verdana, sans-serif" size=3D"1">(2) Sinc=
e both PCEP open message and IGP PCE discovery can be used to notify PCE st=
ateful nature, some text should be added to handle it, For ex how should th=
e implementation behave if there is a difference in the capability between =
what PCC learned via =A0IGP flooding and open message?=A0</font></div>
</div></div><div style><font face=3D"verdana, sans-serif" size=3D"1"><br></=
font></div><div style><font size=3D"1"><font face=3D"verdana, sans-serif">(=
3) BGP-LS=A0</font></font></div><div style><font size=3D"1"><span style=3D"=
color:rgb(0,0,0);line-height:1.2em"><font face=3D"courier new, monospace">=
=A0 =A0A PCC could listen to IGP updates, or use other mechanisms that carr=
y</font></span></font></div>
<pre style=3D"line-height:1.2em;margin-top:0px;margin-bottom:0px;color:rgb(=
0,0,0)"><font size=3D"1" face=3D"courier new, monospace">   IGP information=
 to interested clients, such as BGP-LS
   ([I-D.ietf-idr-ls-distribution]).</font></pre><pre style=3D"line-height:=
1.2em;margin-top:0px;margin-bottom:0px;color:rgb(0,0,0)"><font face=3D"verd=
ana, sans-serif" size=3D"1">Can BGP-LS be used to advertise PCE? As far as =
i remember it allow the TE information to be carried in BGP and not PCE Dis=
covery TLVs? </font></pre>
<pre style=3D"line-height:1.2em;margin-top:0px;margin-bottom:0px;color:rgb(=
0,0,0)"><font face=3D"verdana, sans-serif" size=3D"1" style=3D"line-height:=
1.2em">Jan: Since you are the author of BGP-LS, maybe you can clarify.</fon=
t></pre>
<pre style=3D"line-height:1.2em;margin-top:0px;margin-bottom:0px;color:rgb(=
0,0,0)"><span style=3D"line-height:1.2em;font-family:arial"><font size=3D"1=
"><br></font></span></pre><pre style=3D"line-height:1.2em;margin-top:0px;ma=
rgin-bottom:0px;color:rgb(0,0,0)">
<span style=3D"line-height:1.2em;font-family:arial"><font size=3D"1">Dhruv<=
/font></span></pre><pre style=3D"line-height:1.2em;margin-top:0px;margin-bo=
ttom:0px;color:rgb(0,0,0)"><font size=3D"1" face=3D"courier new, monospace"=
><br></font></pre>
</div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Wed,=
 Apr 3, 2013 at 9:38 PM, Ina Minei <span dir=3D"ltr">&lt;<a href=3D"mailto:=
ina@juniper.net" target=3D"_blank">ina@juniper.net</a>&gt;</span> wrote:<br=
><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1=
px #ccc solid;padding-left:1ex">
This is useful and straightforward functionality that is much needed for a =
deployment and completes the solution.<br>
<br>
I support this draft&#39;s adoption as a WG document (but I guess we will w=
ait for the chairs to send the official poll, right?)<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Ina<br>
</font></span><div class=3D"HOEnZb"><div class=3D"h5"><br>
-----Original Message-----<br>
From: <a href=3D"mailto:pce-bounces@ietf.org">pce-bounces@ietf.org</a> [mai=
lto:<a href=3D"mailto:pce-bounces@ietf.org">pce-bounces@ietf.org</a>] On Be=
half Of Jan Medved (jmedved)<br>
Sent: Wednesday, March 27, 2013 3:49 PM<br>
To: <a href=3D"mailto:pce@ietf.org">pce@ietf.org</a><br>
Subject: [Pce] Stateful PCE Capability discovery draft: request for review =
&amp; adoption as a WG document<br>
<br>
Dear PCE&#39;rs,<br>
<br>
can you please review draft-sivabalan-pce-disco-stateful and send your comm=
ents to the list? The draft is at: <a href=3D"http://datatracker.ietf.org/d=
oc/draft-sivabalan-pce-disco-stateful/" target=3D"_blank">http://datatracke=
r.ietf.org/doc/draft-sivabalan-pce-disco-stateful/</a>.<br>

<br>
Also, can you please let us know if you are in favor/opposed to adopting dr=
aft-sivabalan-pce-disco-stateful as a PCE WG document?<br>
<br>
<br>
<br>
Thanks a lot in advance,<br>
Siva and Jan<br>
_______________________________________________<br>
Pce mailing list<br>
<a href=3D"mailto:Pce@ietf.org">Pce@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/pce" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/pce</a><br>
<br>
<br>
_______________________________________________<br>
Pce mailing list<br>
<a href=3D"mailto:Pce@ietf.org">Pce@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/pce" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/pce</a><br>
</div></div></blockquote></div><br></div>

--14dae93408e79534ca04d977b15f--

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From: "Zafar Ali (zali)" <zali@cisco.com>
To: Ina Minei <ina@juniper.net>, "Jan Medved (jmedved)" <jmedved@cisco.com>, "pce@ietf.org" <pce@ietf.org>
Thread-Topic: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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Subject: Re: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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Hi-=20

I agree. Indeed a much needed draft.

Thanks

Regards =8A Zafar


-----Original Message-----
From: Ina Minei <ina@juniper.net>
Date: Wednesday, April 3, 2013 12:08 PM
To: "Jan Medved (jmedved)" <jmedved@cisco.com>, "pce@ietf.org"
<pce@ietf.org>
Subject: Re: [Pce] Stateful PCE Capability discovery draft: request for
review & adoption as a WG document

>This is useful and straightforward functionality that is much needed for
>a deployment and completes the solution.
>
>I support this draft's adoption as a WG document (but I guess we will
>wait for the chairs to send the official poll, right?)
>
>Ina=20
>
>-----Original Message-----
>From: pce-bounces@ietf.org [mailto:pce-bounces@ietf.org] On Behalf Of Jan
>Medved (jmedved)
>Sent: Wednesday, March 27, 2013 3:49 PM
>To: pce@ietf.org
>Subject: [Pce] Stateful PCE Capability discovery draft: request for
>review & adoption as a WG document
>
>Dear PCE'rs,
>
>can you please review draft-sivabalan-pce-disco-stateful and send your
>comments to the list? The draft is at:
>http://datatracker.ietf.org/doc/draft-sivabalan-pce-disco-stateful/.
>
>Also, can you please let us know if you are in favor/opposed to adopting
>draft-sivabalan-pce-disco-stateful as a PCE WG document?
>
>
>
>Thanks a lot in advance,
>Siva and Jan
>_______________________________________________
>Pce mailing list
>Pce@ietf.org
>https://www.ietf.org/mailman/listinfo/pce
>
>
>_______________________________________________
>Pce mailing list
>Pce@ietf.org
>https://www.ietf.org/mailman/listinfo/pce


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Subject: Re: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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--f46d043be11ad8adba04d9784abf
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Ditto: I support this draft's adoption as a WG document.


On Wed, Apr 3, 2013 at 9:08 AM, Ina Minei <ina@juniper.net> wrote:

> This is useful and straightforward functionality that is much needed for a
> deployment and completes the solution.
>
> I support this draft's adoption as a WG document (but I guess we will wait
> for the chairs to send the official poll, right?)
>
> Ina
>
> -----Original Message-----
> From: pce-bounces@ietf.org [mailto:pce-bounces@ietf.org] On Behalf Of Jan
> Medved (jmedved)
> Sent: Wednesday, March 27, 2013 3:49 PM
> To: pce@ietf.org
> Subject: [Pce] Stateful PCE Capability discovery draft: request for review
> & adoption as a WG document
>
> Dear PCE'rs,
>
> can you please review draft-sivabalan-pce-disco-stateful and send your
> comments to the list? The draft is at:
> http://datatracker.ietf.org/doc/draft-sivabalan-pce-disco-stateful/.
>
> Also, can you please let us know if you are in favor/opposed to adopting
> draft-sivabalan-pce-disco-stateful as a PCE WG document?
>
>
>
> Thanks a lot in advance,
> Siva and Jan
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce
>
>
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce
>

--f46d043be11ad8adba04d9784abf
Content-Type: text/html; charset=ISO-8859-1
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<div dir=3D"ltr">Ditto: I support this draft&#39;s adoption as a WG documen=
t.=A0<div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Wed, =
Apr 3, 2013 at 9:08 AM, Ina Minei <span dir=3D"ltr">&lt;<a href=3D"mailto:i=
na@juniper.net" target=3D"_blank">ina@juniper.net</a>&gt;</span> wrote:<br>


<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">This is useful and straightforward functiona=
lity that is much needed for a deployment and completes the solution.<br>
<br>
I support this draft&#39;s adoption as a WG document (but I guess we will w=
ait for the chairs to send the official poll, right?)<br>
<div><br>
Ina<br>
<br>
-----Original Message-----<br>
From: <a href=3D"mailto:pce-bounces@ietf.org" target=3D"_blank">pce-bounces=
@ietf.org</a> [mailto:<a href=3D"mailto:pce-bounces@ietf.org" target=3D"_bl=
ank">pce-bounces@ietf.org</a>] On Behalf Of Jan Medved (jmedved)<br>
Sent: Wednesday, March 27, 2013 3:49 PM<br>
To: <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@ietf.org</a><br>
Subject: [Pce] Stateful PCE Capability discovery draft: request for review =
&amp; adoption as a WG document<br>
<br>
</div><div><div>Dear PCE&#39;rs,<br>
<br>
can you please review draft-sivabalan-pce-disco-stateful and send your comm=
ents to the list? The draft is at: <a href=3D"http://datatracker.ietf.org/d=
oc/draft-sivabalan-pce-disco-stateful/" target=3D"_blank">http://datatracke=
r.ietf.org/doc/draft-sivabalan-pce-disco-stateful/</a>.<br>



<br>
Also, can you please let us know if you are in favor/opposed to adopting dr=
aft-sivabalan-pce-disco-stateful as a PCE WG document?<br>
<br>
<br>
<br>
Thanks a lot in advance,<br>
Siva and Jan<br>
_______________________________________________<br>
Pce mailing list<br>
<a href=3D"mailto:Pce@ietf.org" target=3D"_blank">Pce@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/pce" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/pce</a><br>
<br>
<br>
_______________________________________________<br>
Pce mailing list<br>
<a href=3D"mailto:Pce@ietf.org" target=3D"_blank">Pce@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/pce" target=3D"_blank">htt=
ps://www.ietf.org/mailman/listinfo/pce</a><br>
</div></div></blockquote></div><br></div></div>

--f46d043be11ad8adba04d9784abf--

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From: Ina Minei <ina@juniper.net>
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Thread-Topic: IPR Disclosure: Juniper's Statement of IPR related to draft-ietf-pce-stateful-pce-03
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Subject: Re: [Pce] IPR Disclosure: Juniper's Statement of IPR related to	draft-ietf-pce-stateful-pce-03
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From: Ina Minei <ina@juniper.net>
To: Dhruv Dhody <dhruv.ietf@gmail.com>
Thread-Topic: [Pce] Comments on draft-ietf-pce-stateful-pce-02
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Date: Thu, 4 Apr 2013 00:04:01 +0000
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Subject: Re: [Pce] Comments on draft-ietf-pce-stateful-pce-02
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--_000_70BDAD02381BA54CA31315A2A26A7AD303751B72BLUPRD0511MB436_
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Dhruv,

Please see inline %%%.

From: dhruvdhody@gmail.com [mailto:dhruvdhody@gmail.com] On Behalf Of Dhruv=
 Dhody
Sent: Monday, April 01, 2013 9:32 AM
To: Ina Minei
Cc: pce@ietf.org
Subject: Re: [Pce] Comments on draft-ietf-pce-stateful-pce-02

Hi Ina,

Thanks for your reply, find the response inline, also I have a few comments=
 on -03 version of the draft which is at the end of this mail.

Dhruv

On Sat, Mar 23, 2013 at 5:40 AM, Ina Minei <ina@juniper.net<mailto:ina@juni=
per.net>> wrote:

Dhruv,

Thank you for the review. Please see answers inline below ###.

Ina

From: pce-bounces@ietf.org<mailto:pce-bounces@ietf.org> [mailto:pce-bounces=
@ietf.org<mailto:pce-bounces@ietf.org>] On Behalf Of Dhruv Dhody

Sent: Monday, March 11, 2013 8:03 AM
To: pce@ietf.org<mailto:pce@ietf.org>
Subject: [Pce] Comments on draft-ietf-pce-stateful-pce-02



Hi,

Please find the review comments for this draft (there is some overlap with =
comments from Jon, Cyril etc)

Major Comments:

(1) State synchronisation:

a. PCE should determine the synchronisation is over as soon as possible, as=
 updates, request etc are blocked during synchronisation. Maybe the last re=
port message can have SYNC=3D0 (similar to F - fragmentation bit in RP obje=
ct) or as Jon suggested an empty report but then the RBNF of PCRpt should s=
upport it.

### Please see version 03 of the draft.



b. I also dont like the use of word 'purge' with respect to old or stale en=
tries during PCEP session up/down. A mechanism to mark LSP entries as stale=
 and waiting for them to be refreshed after session up and deleted (or 'pur=
ged') only after some timer expiry.

### Please see version 03 of the draft.





(2) The PCRpt Message:

<state-report> ::=3D <LSP>[<path-list>] Where: <path-list>::=3D<path>[<path=
-list>]. Is this to specify primary and backup? In which case the status of=
 the paths needs to reported separately in case of standby but we have only=
 one LSP object here to specify the operational status. Also LSP-ID of prim=
ary and backup would be different.



Also applicable to PCUpd message.

I feel the backup path should be updated and reported separately with each =
having there own encoding for LSP object.

### Clarification on backup paths will be done in the protection doc. I agr=
ee with you the text needs to be cleaned up in the base spec, will do so in=
 04.



(3) Node Identifier TLV

PCC may use address that survives the session restart (Loopback, MPLS LSR-I=
D etc), i suggest we mention this in the document and provide guidance to i=
mplementers to do this if possible.

### the node-id (now renamed to predundancy-group-id) will be further clari=
fied in version 04



(4) LSP Object:

a. What is relationship between the LSP-ID in LSP object and the LSP-ID in =
LSP Identifier TLVs?

### The lsp-id in the lsp object was renamed to plsp-id to avoid such confu=
sion.
[DD]: Rename is good, but i hope relationship between the PLSP-ID and the L=
SP-ID (signalled by RSVP) can be explicitly mentioned. This should especial=
ly be clarified in the case of MBB.

%%% Could you point to the confusing text in the definition of plsp-id?



b. There is no mechanism to report the 'pending' state right now? O-Bit as =
zero will mean down, not pending.

### The O-bit will be revisited in version 04.



(5) Make-Before-Break:

There is a need to clarify how MBB is achieved, what is the LSP-ID in case =
of updates and reports?

### Please see version 03.


[DD]: The updated text though in the right direction is still missing key i=
nformation. I hope the next version clarifies it further.
%%% could you please indicate what key information is missing?



Minor Comments:

(1) Abstract/Introduction

There is a consistent use of phrase "between and across PCEP sessions". Can=
 you clarify?

### LSPs may move from one PCE to another.



(2) Re-look the terminology section as some terms are no longer in the docu=
ment.

### Could you send the correction?


[DD]: Just removal of MPLS TE Global Default Restoration & MPLS TE Global P=
ath Protection should do the trick. Both terms are no longer used in this d=
ocument.

(3) LSP Protection

In case of delegated PCE, the desired protection may also be configured at =
PCC and the active stateful PCE should support it, the stateful PCE having =
full control over the protection / restoration settings can only be achieve=
d with instantiation capability and should be out of scope from this docume=
nt.

### The whole discussion on protection belongs in a separate document.



(4) Delegation

a. The wording "an LSP may be delegated to one or more PCEs." .. this is in=
correct, from the reading it looks as if this is happening at the same time=
.

### To a single PCE, text is clarified in 03.



b. Active stateful PCE LSP Update (sec 5.6.2)

OLD:

A PCC may choose to compress LSP State Updates to only reflect the most up =
to date state, as discussed in the previous section.

NEW:

A PCC may choose to compress LSP State Reports to only reflect the most up =
to date state, as discussed in the previous section.

### Actually, I think we mean updates, not reports (if receiving multiple u=
pdates, may choose to do state compression during processing)


[DD]: Okay I understand, it mean that PCC is only taking the latest Update =
into consideration; now i am wondering can PCC choose to compress reports a=
nd send the most upto date report? (skip sending pending if not yet send; o=
r in case of multiple up-down only send the latest state)

%%% There are some issues with this and error reporting, working through th=
ese issues now.

(5) Symbolic Path Name TLV

The length of this TLV must be greater then 0 as well as multiple of four.

### I think this is not necessary to specify in words, the figure should be=
 sufficient.
[DD]: In most cases yes, but this is a case of variable length we must make=
 sure extra padding is added and the TLV is aligned. You can take your cue =
from other RFC where variable length TLV exists say RFC4920; RFC6001 etc



(6) LSP state DB version TLV (page 40, para 2)

"Since a PCE does not send LSP updates to a PCC, a PCC should never encount=
er this TLV". LSP updates here can be easily confused with the PCUpd messag=
es. Kindly reword this.

### Will do.



Regards,

Dhruv


Few more comments on the -03 version:

(1) Section 5.5.2 (Revocation of delegated LSP)

When a PCC revokes a delegated LSP, PCC immediately clears the LSP state re=
ceived from this PCE. But we should apply Make-Before-Break here as well, t=
hat is while the PCC delegates to another PCE or keep the LSP with itself, =
the LSP should not be teardown immediately.
%%% Can you please point me to the text that gives this impression? The cur=
rent text says: "MAY immediately clear", not "MUST immediately clear".


(2) Modification of Tunnel configuration at PCC for a delegated LSP.

Incase of manual config change (say bandwidth, priority) at PCC, how the ne=
w LSP parameters to be reported to the PCE (maybe a separate delegation req=
uest with new PLSP-ID) eventually make-before-break should be applied here =
as well. When the text for MBB is added in detail, this could also be consi=
dered.

%%% Can you explain the scenario? The operator should not change bw/priorit=
y or anything else that is PCE-controlled unless he has revoked delegation.

(3) Section 6.1 (The PCRpt Message)

Please consider the comments given for draft-crabbe-pce-stateful-pce-mpls-t=
e-00 regarding the PCRpt message here as well [http://www.ietf.org/mail-arc=
hive/web/pce/current/msg03007.html].

Thanks!

Dhruv




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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">Dhruv,
<o:p></o:p></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"><o:p>&nbsp;</o:p></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">Please see inline %%%.<o:=
p></o:p></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"><o:p>&nbsp;</o:p></span><=
/p>
<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;"> dhruvdho=
dy@gmail.com [mailto:dhruvdhody@gmail.com]
<b>On Behalf Of </b>Dhruv Dhody<br>
<b>Sent:</b> Monday, April 01, 2013 9:32 AM<br>
<b>To:</b> Ina Minei<br>
<b>Cc:</b> pce@ietf.org<br>
<b>Subject:</b> Re: [Pce] Comments on draft-ietf-pce-stateful-pce-02<o:p></=
o:p></span></p>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">Hi Ina,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Thanks for your reply, find the response inline, als=
o I have a few comments on -03 version of the draft which is at the end of =
this mail.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Dhruv&nbsp;<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal">On Sat, Mar 23, 2013 at 5:40 AM, Ina Minei &lt;<a hr=
ef=3D"mailto:ina@juniper.net" target=3D"_blank">ina@juniper.net</a>&gt; wro=
te:<o:p></o:p></p>
<div>
<div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">Dhruv,
</span><o:p></o:p></p>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">Thank you for the review. Please see answers =
inline below ###.</span><o:p></o:p></p>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">Ina</span><o:p></o:p></p>
<p><b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;=
sans-serif&quot;">From:</span></b><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Tahoma&quot;,&quot;sans-serif&quot;">
<a href=3D"mailto:pce-bounces@ietf.org" target=3D"_blank">pce-bounces@ietf.=
org</a> [mailto:<a href=3D"mailto:pce-bounces@ietf.org" target=3D"_blank">p=
ce-bounces@ietf.org</a>]
<b>On Behalf Of </b>Dhruv Dhody</span><o:p></o:p></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p><b><span style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;=
sans-serif&quot;">Sent:</span></b><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> Monday, March 11, 2013 8:03 =
AM<br>
<b>To:</b> <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@ietf.org</=
a><br>
<b>Subject:</b> [Pce] Comments on draft-ietf-pce-stateful-pce-02</span><o:p=
></o:p></p>
</div>
<p>&nbsp;<o:p></o:p></p>
<div>
<div>
<p>Hi,<o:p></o:p></p>
<div>
<p>Please find the review comments for this draft (there is some overlap wi=
th comments from Jon, Cyril etc)<o:p></o:p></p>
</div>
<div>
<p><b><u>Major Comments:</u></b><o:p></o:p></p>
</div>
<div>
<p>(1) State synchronisation: &nbsp;<o:p></o:p></p>
</div>
<div>
<p>a. PCE should determine the synchronisation is over as soon as possible,=
 as updates, request etc are blocked during synchronisation. Maybe the last=
 report message can have SYNC=3D0 (similar to F - fragmentation bit in RP o=
bject) or as Jon suggested an empty
 report but then the RBNF of PCRpt should support it.&nbsp;<o:p></o:p></p>
</div>
</div>
<div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### Please see version 03 of the draft.</span=
><o:p></o:p></p>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<div>
<p>b. I also dont like the use of word 'purge' with respect to old or stale=
 entries during PCEP session up/down. A mechanism to mark LSP entries as st=
ale and waiting for them to be refreshed after session up and deleted (or '=
purged') only after some timer expiry.<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### Please see version 03 of the draft.
</span><o:p></o:p></p>
</div>
<div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>(2) The PCRpt Message:<o:p></o:p></p>
</div>
<div>
<p>&lt;state-report&gt; ::=3D &lt;LSP&gt;[&lt;path-list&gt;]&nbsp;Where:&nb=
sp;&lt;path-list&gt;::=3D&lt;path&gt;[&lt;path-list&gt;]. Is this to specif=
y primary and backup? In which case the status of the paths needs to report=
ed&nbsp;separately&nbsp;in case of standby but we have only one LSP object =
here to specify the
 operational status. Also LSP-ID of primary and backup would be different.&=
nbsp;<o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>Also applicable to PCUpd message.&nbsp;<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p>I feel the backup path should be updated and reported&nbsp;separately&nb=
sp;with each having there own encoding for LSP object.&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### Clarification on backup paths will be don=
e in the protection doc. I agree with you the text needs to be cleaned up i=
n the base spec, will do so in 04.
</span><o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>(3) Node Identifier TLV<o:p></o:p></p>
</div>
<div>
<div>
<p>PCC may use address that survives the session restart (Loopback, MPLS LS=
R-ID etc), i suggest we mention this in the document and provide guidance t=
o implementers to do this if possible.&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### the node-id (now renamed to predundancy-g=
roup-id) will be further clarified in version 04</span><o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>(4) LSP Object:&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<p>a. What is relationship between the LSP-ID in LSP object and the LSP-ID =
in LSP Identifier TLVs?<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### The lsp-id in the lsp object was renamed =
to plsp-id to avoid such confusion.</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">[DD]: Rename is goo=
d, but i hope relationship between the PLSP-ID and the LSP-ID (signalled by=
 RSVP) can be explicitly mentioned. This should especially be clarified in =
the case of MBB.&nbsp;</span><o:p></o:p></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></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">%%% Could you point to th=
e confusing text in the definition of plsp-id?<o:p></o:p></span></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-right:0in">
<div>
<div>
<div>
<div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">&nbsp;&nbsp;</span><o:p></o:p></p>
</div>
<div>
<div>
<p>b. There is no&nbsp;mechanism&nbsp;to report the 'pending' state right n=
ow? O-Bit as zero will mean down, not pending.&nbsp;<o:p></o:p></p>
</div>
</div>
<div>
<p><span style=3D"color:#1F497D">### The O-bit will be revisited in version=
 04.</span><o:p></o:p></p>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">&nbsp;</span><o:p></o:p></p>
</div>
<div>
<p>(5) Make-Before-Break:&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<p>There is a need to clarify how MBB is achieved, what is the LSP-ID in ca=
se of updates and reports?&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### Please see version 03.
</span><o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">[DD]: The updated t=
ext though in the right direction is still missing key information. I hope =
the next version clarifies it further.&nbsp;</span><o:p></o:p></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">%%% could you please indi=
cate what key information is missing?
<o:p></o:p></span></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-right:0in">
<div>
<div>
<div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p><b><u>Minor Comments:&nbsp;</u></b><o:p></o:p></p>
</div>
<div>
<p>(1) Abstract/Introduction<o:p></o:p></p>
</div>
<div>
<div>
<p>There is a consistent use of phrase &quot;between and across PCEP sessio=
ns&quot;. Can you clarify?&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### LSPs may move from one PCE to another.</s=
pan><o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<p>(2) Re-look the terminology section as some terms are no longer in the d=
ocument.&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### Could you send the correction?</span><o:p=
></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">[DD]: Just removal =
of MPLS TE Global&nbsp;Default&nbsp;Restoration &amp; MPLS TE Global Path P=
rotection should do the trick. Both terms are no longer used in this docume=
nt.&nbsp;</span></b><o:p></o:p></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-right:0in">
<div>
<div>
<div>
<div>
<p>(3) LSP Protection&nbsp;<o:p></o:p></p>
</div>
<div>
<div>
<p>In case of delegated PCE, the desired protection may also be configured =
at PCC and the active stateful PCE should support it, the stateful PCE havi=
ng full control over the protection / restoration settings can only be achi=
eved with instantiation capability
 and should be out of scope from this document.&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### The whole discussion on protection belong=
s in a separate document.</span><o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>(4)&nbsp;Delegation<o:p></o:p></p>
</div>
<div>
<div>
<p>a. The wording &quot;an LSP may be delegated to one or more PCEs.&quot; =
.. this is incorrect, from the reading it looks as if this is happening at =
the same time.&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### To a single PCE, text is clarified in 03.=
</span><o:p></o:p></p>
</div>
<div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>b. Active stateful PCE LSP Update (sec 5.6.2)<o:p></o:p></p>
</div>
<div>
<p>OLD:<o:p></o:p></p>
</div>
<div>
<p>A PCC&nbsp;may choose to compress LSP State Updates to only reflect the =
most up&nbsp;to date state, as discussed in the previous section.&nbsp;<o:p=
></o:p></p>
</div>
<div>
<p>NEW:<o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<p>A PCC&nbsp;may choose to compress LSP State Reports to only reflect the =
most up&nbsp;to date state, as discussed in the previous section.&nbsp;<o:p=
></o:p></p>
</div>
</div>
<div>
<p><span style=3D"color:#1F497D">### Actually, I think we mean updates, not=
 reports (if receiving multiple updates, may choose to do state compression=
 during processing)</span><o:p></o:p></p>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">&nbsp;</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">[DD]: Okay I unders=
tand, it mean that PCC is only taking the latest Update into consideration;=
 now i am wondering can PCC choose to compress reports and send the most up=
to date report? (skip sending pending
 if not yet send; or in case of multiple up-down only send the latest state=
) &nbsp;</span></b>&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></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">%%% There are some issues=
 with this and error reporting, working through these issues now.
<o:p></o:p></span></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-right:0in">
<div>
<div>
<div>
<div>
<div>
<div>
<p>(5) Symbolic Path Name TLV<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p>The length of this TLV must be greater then 0 as well as multiple of fou=
r.&nbsp;<o:p></o:p></p>
</div>
<p><span style=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sa=
ns-serif&quot;;color:#1F497D">### I think this is not necessary to specify =
in words, the figure should be sufficient.</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">[DD]: In most cases=
 yes, but this is a case of variable length we must make sure extra padding=
 is added and the TLV is aligned. You can take your cue from other RFC wher=
e variable length TLV exists say RFC4920;
 RFC6001 etc &nbsp;</span></b><o:p></o:p></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-right:0in">
<div>
<div>
<div>
<div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p>(6) LSP state DB version TLV (page 40, para 2)<o:p></o:p></p>
</div>
<div>
<p>&quot;Since a PCE does not send LSP updates to a PCC, a PCC should never=
 encounter this TLV&quot;.&nbsp;LSP updates here can be easily confused wit=
h the PCUpd messages. Kindly reword this.&nbsp;<o:p></o:p></p>
</div>
</div>
<div>
<p><span style=3D"color:#1F497D">### Will do.</span><o:p></o:p></p>
</div>
<div>
<p>&nbsp;<o:p></o:p></p>
</div>
<div>
<p>Regards,<o:p></o:p></p>
</div>
<div>
<p>Dhruv<o:p></o:p></p>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">Few more comments o=
n the -03 version:&nbsp;</span></b><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">(1) Section 5.5.2 (=
Revocation of delegated LSP)</span></b><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">When a PCC revokes =
a delegated LSP, PCC immediately clears the LSP state received from this PC=
E. But we should apply Make-Before-Break here as well, that is while the PC=
C delegates to another PCE or keep the
 LSP with itself, the LSP should not be teardown immediately. &nbsp;&nbsp;<=
/span><o:p></o:p></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">%%% Can you please point =
me to the text that gives this impression? The current text says: &#8220;MA=
Y immediately clear&#8221;, not &#8220;MUST immediately clear&#8221;.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:11.0pt;font-family:&quot=
;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></b></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">(2) Modification of=
 Tunnel configuration at PCC for a delegated LSP.&nbsp;</span></b><o:p></o:=
p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">Incase of manual co=
nfig change (say bandwidth, priority) at PCC, how the new LSP parameters to=
 be reported to the PCE (maybe a&nbsp;separate&nbsp;delegation request with=
 new PLSP-ID)&nbsp;eventually&nbsp;make-before-break should
 be&nbsp;applied&nbsp;here as well. When the text for MBB is added in&nbsp;=
detail, this could also be considered.&nbsp;</span><o:p></o:p></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:&quot;Ca=
libri&quot;,&quot;sans-serif&quot;;color:#1F497D">%%% Can you explain the s=
cenario? The operator should not change bw/priority or anything else that i=
s PCE-controlled unless he has revoked delegation.
<o:p></o:p></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"><o:p>&nbsp;</o:p></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">(3) Section 6.1 (Th=
e PCRpt Message)</span></b><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">Please consider the=
 comments given for&nbsp;draft-crabbe-pce-stateful-pce-mpls-te-00 regarding=
 the PCRpt message here as well&nbsp;[<a href=3D"http://www.ietf.org/mail-a=
rchive/web/pce/current/msg03007.html">http://www.ietf.org/mail-archive/web/=
pce/current/msg03007.html</a>].&nbsp;</span></b><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">Thanks!&nbsp;</span=
></b><o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">Dhruv</span></b><o:=
p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><b><span style=3D"color:#741B47">&nbsp;</span></b><o=
:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>

--_000_70BDAD02381BA54CA31315A2A26A7AD303751B72BLUPRD0511MB436_--

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From: "Zhangxian (Xian)" <zhang.xian@huawei.com>
To: Ina Minei <ina@juniper.net>, "Jan Medved (jmedved)" <jmedved@cisco.com>, "pce@ietf.org" <pce@ietf.org>
Thread-Topic: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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From julien.meuric@orange.com  Thu Apr  4 05:32:40 2013
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Subject: Re: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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Hi Ina.

Indeed, there is no poll for WG adoption in progress, which remains in 
the hands of the chairs. One may interpret Silva and Jan's message as a 
clever way to get feedback from the WG, but the use of "adopting" is an 
unfortunate wording. In this context, comments like "support" or 
"useless" need to be backed up.

Thanks,

Julien


On 04/03/2013 18:08, Ina Minei wrote:
> (but I guess we will wait for the chairs to send the official poll, right?)
>
> Ina
>

From julien.meuric@orange.com  Thu Apr  4 05:43:39 2013
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Subject: Re: [Pce] Recharter text
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Hi Adrian.

I believe the WG agrees with the process and there is no reason not to 
abide by it. The next step will be the chairs sharing a new version of 
the text with the WG for feedback, which will happen soon.

Thanks,

Julien


On 04/02/2013 14:01, Adrian Farrel wrote:
> Hi working group,
>
> In Orlando you discussed a paragraph for a charter revision.
>
> The work doesn't stop there!
>
> In order to officially recharter I need to have the agreed text sent to me as a
> formal request by the chairs, and I need to see that the WG has consensus behind
> the text.
>
> Thanks,
> Adrian
>
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce


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Subject: [Pce] [Editorial Errata Reported] RFC5520 (3582)
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The following errata report has been submitted for RFC5520,
"Preserving Topology Confidentiality in Inter-Domain Path Computation Using a Path-Key-Based Mechanism".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3582

--------------------------------------
Type: Editorial
Reported by: Dhruv Dhody <dhruv.ietf@gmail.com>

Section: 3.2.3

Original Text
-------------
<request>::= <RP>
                    <segment-computation> | <path-key-expansion>

       where:
          <segment-computation> ::= <END-POINTS>
                                    [<LSPA>]
                                    [<BANDWIDTH>]
                                    [<BANDWIDTH>]
                                    [<metric-list>]
                                    [<RRO>]
                                    [<IRO>]
                                    [<LOAD-BALANCING>]
          <path-key-expansion> ::= <PATH-KEY>



Corrected Text
--------------
<request>::= <RP>
                    <segment-computation> | <path-key-expansion>

       where:
          <segment-computation> ::= <END-POINTS>
                                    [<LSPA>]
                                    [<BANDWIDTH>]
                                    [<metric-list>]
                                    [<RRO>[<BANDWIDTH>]]
                                    [<IRO>]
                                    [<LOAD-BALANCING>]
          <path-key-expansion> ::= <PATH-KEY>



Notes
-----
This document defines <path-key-expansion> to allow path request message to be used for getting the confidential path segment. The <segment-computation> should be as per RFC5440 itself. 
There is a mistake in the second BANDWIDTH object which should be placed with RRO as per RFC5440.

Instructions:
-------------
This errata is currently posted as "Reported". If necessary, please
use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party (IESG)
can log in to change the status and edit the report, if necessary. 

--------------------------------------
RFC5520 (draft-ietf-pce-path-key-05)
--------------------------------------
Title               : Preserving Topology Confidentiality in Inter-Domain Path Computation Using a Path-Key-Based Mechanism
Publication Date    : April 2009
Author(s)           : R. Bradford, Ed., JP. Vasseur, A. Farrel
Category            : PROPOSED STANDARD
Source              : Path Computation Element
Area                : Routing
Stream              : IETF
Verifying Party     : IESG

From zhangfatai@huawei.com  Sun Apr  7 02:00:49 2013
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From: Fatai Zhang <zhangfatai@huawei.com>
To: "Jan Medved (jmedved)" <jmedved@cisco.com>, "pce@ietf.org" <pce@ietf.org>
Thread-Topic: [Pce] Stateful PCE Capability discovery draft: request for review & adoption as a WG document
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Hi Jan,

I would say this draft is useful and I am in favor of this draft, even thou=
gh I know this is not an official poll.=20




Best Regards

Fatai


-----Original Message-----
From: pce-bounces@ietf.org [mailto:pce-bounces@ietf.org] On Behalf Of Jan M=
edved (jmedved)
Sent: Thursday, March 28, 2013 6:49 AM
To: pce@ietf.org
Subject: [Pce] Stateful PCE Capability discovery draft: request for review =
& adoption as a WG document

Dear PCE'rs,

can you please review draft-sivabalan-pce-disco-stateful and send your comm=
ents to the list? The draft is at: http://datatracker.ietf.org/doc/draft-si=
vabalan-pce-disco-stateful/.

Also, can you please let us know if you are in favor/opposed to adopting dr=
aft-sivabalan-pce-disco-stateful as a PCE WG document?=20



Thanks a lot in advance,
Siva and Jan
_______________________________________________
Pce mailing list
Pce@ietf.org
https://www.ietf.org/mailman/listinfo/pce

From adrian@olddog.co.uk  Sun Apr  7 06:02:32 2013
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Subject: Re: [Pce] [Editorial Errata Reported] RFC5520 (3582)
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Hi PCE,

Dhurv's Errata Report at
http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3582 seems to make a
good point. The RBNF in RFC 5520 appears to offer the presence of two copies of
<BANDWIDTH> without any explanation, but also to not allow <BANDWIDTH> to be
present alongside the <RRO>.

I can see how this happened...
Revision -08 of draft-ietf-pce-pcep used exactly the formulation that found its
way into RFC5520, but by the time PCEP became RFC 5440, this issue had been
resolved in the PCEP spec. Obviously the fix did not get applied across to the
Path Key document.

I propose to accept this Errata Report, but since I am a co-author, I just want
to poll the WG to make sure no=one objects.

Thanks,
Adrian

> -----Original Message-----
> From: RFC Errata System [mailto:rfc-editor@rfc-editor.org]
> Sent: 05 April 2013 09:45
> To: rbradfor@cisco.com; jpv@cisco.com; adrian@olddog.co.uk;
> stbryant@cisco.com; adrian@olddog.co.uk; jpv@cisco.com;
> julien.meuric@orange.com
> Cc: dhruv.ietf@gmail.com; pce@ietf.org; rfc-editor@rfc-editor.org
> Subject: [Editorial Errata Reported] RFC5520 (3582)
> 
> The following errata report has been submitted for RFC5520,
> "Preserving Topology Confidentiality in Inter-Domain Path Computation Using a
> Path-Key-Based Mechanism".
> 
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3582
> 
> --------------------------------------
> Type: Editorial
> Reported by: Dhruv Dhody <dhruv.ietf@gmail.com>
> 
> Section: 3.2.3
> 
> Original Text
> -------------
> <request>::= <RP>
>                     <segment-computation> | <path-key-expansion>
> 
>        where:
>           <segment-computation> ::= <END-POINTS>
>                                     [<LSPA>]
>                                     [<BANDWIDTH>]
>                                     [<BANDWIDTH>]
>                                     [<metric-list>]
>                                     [<RRO>]
>                                     [<IRO>]
>                                     [<LOAD-BALANCING>]
>           <path-key-expansion> ::= <PATH-KEY>
> 
> 
> 
> Corrected Text
> --------------
> <request>::= <RP>
>                     <segment-computation> | <path-key-expansion>
> 
>        where:
>           <segment-computation> ::= <END-POINTS>
>                                     [<LSPA>]
>                                     [<BANDWIDTH>]
>                                     [<metric-list>]
>                                     [<RRO>[<BANDWIDTH>]]
>                                     [<IRO>]
>                                     [<LOAD-BALANCING>]
>           <path-key-expansion> ::= <PATH-KEY>
> 
> 
> 
> Notes
> -----
> This document defines <path-key-expansion> to allow path request message to
> be used for getting the confidential path segment. The <segment-computation>
> should be as per RFC5440 itself.
> There is a mistake in the second BANDWIDTH object which should be placed with
> RRO as per RFC5440.
> 
> Instructions:
> -------------
> This errata is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party (IESG)
> can log in to change the status and edit the report, if necessary.
> 
> --------------------------------------
> RFC5520 (draft-ietf-pce-path-key-05)
> --------------------------------------
> Title               : Preserving Topology Confidentiality in Inter-Domain Path
> Computation Using a Path-Key-Based Mechanism
> Publication Date    : April 2009
> Author(s)           : R. Bradford, Ed., JP. Vasseur, A. Farrel
> Category            : PROPOSED STANDARD
> Source              : Path Computation Element
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG


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My small objection is just that the errata did not add the full PCReq
message paragraph in the errata (it contains another editorial issue),
as the missing part can add to read the below (similar to RFC5440);
++++++++++++++
The format of a PCReq message is as follows:

   <PCReq Message>::= <Common Header>
                      [<svec-list>]
                      <request-list>

   where:

      <svec-list>::=<SVEC>[<svec-list>]
      <request-list>::=<request>[<request-list>]
++++++++++++++

The RFC5520 had mentioned the above as differently from RFC5440 as;
+++++++++++++++++
The format of a PCReq message is as follows:

   <PCReq Message>::= <Common Header>
                      [<SVEC-list>]
                      <request-list>

   where:

      <svec-list>::=<SVEC>[<svec-list>]
      <request-list>::=<request>[<request-list>]
++++++++++++++++++
I think there may be difference between <SVEC-list> and <svec-list>
However, I don't object if the authors ignored that,

Regards
AB

*This message was a reply to the below request*
++++++++++++++++++++++++++++++++++++
On 4/7/13, Adrian Farrel <adrian@olddog.co.uk> wrote:
> Hi PCE,
>
> Dhurv's Errata Report at
> http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3582 seems to make
> a
> good point. The RBNF in RFC 5520 appears to offer the presence of two copies
> of
> <BANDWIDTH> without any explanation, but also to not allow <BANDWIDTH> to
> be
> present alongside the <RRO>.
>
> I can see how this happened...
> Revision -08 of draft-ietf-pce-pcep used exactly the formulation that found
> its
> way into RFC5520, but by the time PCEP became RFC 5440, this issue had been
> resolved in the PCEP spec. Obviously the fix did not get applied across to
> the
> Path Key document.
>
> I propose to accept this Errata Report, but since I am a co-author, I just
> want
> to poll the WG to make sure no=one objects.
>
> Thanks,
> Adrian
>
>> -----Original Message-----
>> From: RFC Errata System [mailto:rfc-editor@rfc-editor.org]
>> Sent: 05 April 2013 09:45
>> To: rbradfor@cisco.com; jpv@cisco.com; adrian@olddog.co.uk;
>> stbryant@cisco.com; adrian@olddog.co.uk; jpv@cisco.com;
>> julien.meuric@orange.com
>> Cc: dhruv.ietf@gmail.com; pce@ietf.org; rfc-editor@rfc-editor.org
>> Subject: [Editorial Errata Reported] RFC5520 (3582)
>>
>> The following errata report has been submitted for RFC5520,
>> "Preserving Topology Confidentiality in Inter-Domain Path Computation
>> Using a
>> Path-Key-Based Mechanism".
>>
>> --------------------------------------
>> You may review the report below and at:
>> http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3582
>>
>> --------------------------------------
>> Type: Editorial
>> Reported by: Dhruv Dhody <dhruv.ietf@gmail.com>
>>
>> Section: 3.2.3
>>
>> Original Text
>> -------------
>> <request>::= <RP>
>>                     <segment-computation> | <path-key-expansion>
>>
>>        where:
>>           <segment-computation> ::= <END-POINTS>
>>                                     [<LSPA>]
>>                                     [<BANDWIDTH>]
>>                                     [<BANDWIDTH>]
>>                                     [<metric-list>]
>>                                     [<RRO>]
>>                                     [<IRO>]
>>                                     [<LOAD-BALANCING>]
>>           <path-key-expansion> ::= <PATH-KEY>
>>
>>
>>
>> Corrected Text
>> --------------
>> <request>::= <RP>
>>                     <segment-computation> | <path-key-expansion>
>>
>>        where:
>>           <segment-computation> ::= <END-POINTS>
>>                                     [<LSPA>]
>>                                     [<BANDWIDTH>]
>>                                     [<metric-list>]
>>                                     [<RRO>[<BANDWIDTH>]]
>>                                     [<IRO>]
>>                                     [<LOAD-BALANCING>]
>>           <path-key-expansion> ::= <PATH-KEY>
>>
>>
>>
>> Notes
>> -----
>> This document defines <path-key-expansion> to allow path request message
>> to
>> be used for getting the confidential path segment. The
>> <segment-computation>
>> should be as per RFC5440 itself.
>> There is a mistake in the second BANDWIDTH object which should be placed
>> with
>> RRO as per RFC5440.
>>
>> Instructions:
>> -------------
>> This errata is currently posted as "Reported". If necessary, please
>> use "Reply All" to discuss whether it should be verified or
>> rejected. When a decision is reached, the verifying party (IESG)
>> can log in to change the status and edit the report, if necessary.
>>
>> --------------------------------------
>> RFC5520 (draft-ietf-pce-path-key-05)
>> --------------------------------------
>> Title               : Preserving Topology Confidentiality in Inter-Domain
>> Path
>> Computation Using a Path-Key-Based Mechanism
>> Publication Date    : April 2009
>> Author(s)           : R. Bradford, Ed., JP. Vasseur, A. Farrel
>> Category            : PROPOSED STANDARD
>> Source              : Path Computation Element
>> Area                : Routing
>> Stream              : IETF
>> Verifying Party     : IESG
>
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce
>

From adrian@olddog.co.uk  Sun Apr  7 09:06:17 2013
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Abdussalam Baryun'" <abdussalambaryun@gmail.com>
References: <20130405084526.2C9EAB1E002@rfc-editor.org>	<04ca01ce3390$262577e0$727067a0$@olddog.co.uk> <CADnDZ8_CCH9fE346vAXeArUnB01P3eg7OfDuYVLsK2DabXYYHg@mail.gmail.com>
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Date: Sun, 7 Apr 2013 17:06:09 +0100
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Cc: pce@ietf.org, jpv@cisco.com
Subject: Re: [Pce] [Editorial Errata Reported] RFC5520 (3582)
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Hi AB,

You're right that this is another typo in the same section.

It is generally best to raise individual issues in separate reports because that
way it is easier to process them.

Would you like to raise the Errata Report for this, or shall I handle it?

Adrian

> -----Original Message-----
> From: Abdussalam Baryun [mailto:abdussalambaryun@gmail.com]
> Sent: 07 April 2013 16:20
> To: adrian@olddog.co.uk
> Cc: pce@ietf.org; jpv@cisco.com
> Subject: Re: [Pce] [Editorial Errata Reported] RFC5520 (3582)
> 
> My small objection is just that the errata did not add the full PCReq
> message paragraph in the errata (it contains another editorial issue),
> as the missing part can add to read the below (similar to RFC5440);
> ++++++++++++++
> The format of a PCReq message is as follows:
> 
>    <PCReq Message>::= <Common Header>
>                       [<svec-list>]
>                       <request-list>
> 
>    where:
> 
>       <svec-list>::=<SVEC>[<svec-list>]
>       <request-list>::=<request>[<request-list>]
> ++++++++++++++
> 
> The RFC5520 had mentioned the above as differently from RFC5440 as;
> +++++++++++++++++
> The format of a PCReq message is as follows:
> 
>    <PCReq Message>::= <Common Header>
>                       [<SVEC-list>]
>                       <request-list>
> 
>    where:
> 
>       <svec-list>::=<SVEC>[<svec-list>]
>       <request-list>::=<request>[<request-list>]
> ++++++++++++++++++
> I think there may be difference between <SVEC-list> and <svec-list>
> However, I don't object if the authors ignored that,
> 
> Regards
> AB
> 
> *This message was a reply to the below request*
> ++++++++++++++++++++++++++++++++++++
> On 4/7/13, Adrian Farrel <adrian@olddog.co.uk> wrote:
> > Hi PCE,
> >
> > Dhurv's Errata Report at
> > http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3582 seems to
> make
> > a
> > good point. The RBNF in RFC 5520 appears to offer the presence of two copies
> > of
> > <BANDWIDTH> without any explanation, but also to not allow <BANDWIDTH>
> to
> > be
> > present alongside the <RRO>.
> >
> > I can see how this happened...
> > Revision -08 of draft-ietf-pce-pcep used exactly the formulation that found
> > its
> > way into RFC5520, but by the time PCEP became RFC 5440, this issue had been
> > resolved in the PCEP spec. Obviously the fix did not get applied across to
> > the
> > Path Key document.
> >
> > I propose to accept this Errata Report, but since I am a co-author, I just
> > want
> > to poll the WG to make sure no=one objects.
> >
> > Thanks,
> > Adrian
> >
> >> -----Original Message-----
> >> From: RFC Errata System [mailto:rfc-editor@rfc-editor.org]
> >> Sent: 05 April 2013 09:45
> >> To: rbradfor@cisco.com; jpv@cisco.com; adrian@olddog.co.uk;
> >> stbryant@cisco.com; adrian@olddog.co.uk; jpv@cisco.com;
> >> julien.meuric@orange.com
> >> Cc: dhruv.ietf@gmail.com; pce@ietf.org; rfc-editor@rfc-editor.org
> >> Subject: [Editorial Errata Reported] RFC5520 (3582)
> >>
> >> The following errata report has been submitted for RFC5520,
> >> "Preserving Topology Confidentiality in Inter-Domain Path Computation
> >> Using a
> >> Path-Key-Based Mechanism".
> >>
> >> --------------------------------------
> >> You may review the report below and at:
> >> http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3582
> >>
> >> --------------------------------------
> >> Type: Editorial
> >> Reported by: Dhruv Dhody <dhruv.ietf@gmail.com>
> >>
> >> Section: 3.2.3
> >>
> >> Original Text
> >> -------------
> >> <request>::= <RP>
> >>                     <segment-computation> | <path-key-expansion>
> >>
> >>        where:
> >>           <segment-computation> ::= <END-POINTS>
> >>                                     [<LSPA>]
> >>                                     [<BANDWIDTH>]
> >>                                     [<BANDWIDTH>]
> >>                                     [<metric-list>]
> >>                                     [<RRO>]
> >>                                     [<IRO>]
> >>                                     [<LOAD-BALANCING>]
> >>           <path-key-expansion> ::= <PATH-KEY>
> >>
> >>
> >>
> >> Corrected Text
> >> --------------
> >> <request>::= <RP>
> >>                     <segment-computation> | <path-key-expansion>
> >>
> >>        where:
> >>           <segment-computation> ::= <END-POINTS>
> >>                                     [<LSPA>]
> >>                                     [<BANDWIDTH>]
> >>                                     [<metric-list>]
> >>                                     [<RRO>[<BANDWIDTH>]]
> >>                                     [<IRO>]
> >>                                     [<LOAD-BALANCING>]
> >>           <path-key-expansion> ::= <PATH-KEY>
> >>
> >>
> >>
> >> Notes
> >> -----
> >> This document defines <path-key-expansion> to allow path request message
> >> to
> >> be used for getting the confidential path segment. The
> >> <segment-computation>
> >> should be as per RFC5440 itself.
> >> There is a mistake in the second BANDWIDTH object which should be placed
> >> with
> >> RRO as per RFC5440.
> >>
> >> Instructions:
> >> -------------
> >> This errata is currently posted as "Reported". If necessary, please
> >> use "Reply All" to discuss whether it should be verified or
> >> rejected. When a decision is reached, the verifying party (IESG)
> >> can log in to change the status and edit the report, if necessary.
> >>
> >> --------------------------------------
> >> RFC5520 (draft-ietf-pce-path-key-05)
> >> --------------------------------------
> >> Title               : Preserving Topology Confidentiality in Inter-Domain
> >> Path
> >> Computation Using a Path-Key-Based Mechanism
> >> Publication Date    : April 2009
> >> Author(s)           : R. Bradford, Ed., JP. Vasseur, A. Farrel
> >> Category            : PROPOSED STANDARD
> >> Source              : Path Computation Element
> >> Area                : Routing
> >> Stream              : IETF
> >> Verifying Party     : IESG
> >
> > _______________________________________________
> > Pce mailing list
> > Pce@ietf.org
> > https://www.ietf.org/mailman/listinfo/pce
> >


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From: "Rich Bradford (rbradfor)" <rbradfor@cisco.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "pce@ietf.org" <pce@ietf.org>
Thread-Topic: [Editorial Errata Reported] RFC5520 (3582)
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Subject: Re: [Pce] [Editorial Errata Reported] RFC5520 (3582)
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I agree with the changes.=20
--rich

-----Original Message-----
From: Adrian Farrel [mailto:adrian@olddog.co.uk]=20
Sent: Sunday, April 07, 2013 9:02 AM
To: pce@ietf.org
Cc: dhruv.ietf@gmail.com; Rich Bradford (rbradfor); jpv@cisco.com; Stewart =
Bryant (stbryant); jpv@cisco.com; julien.meuric@orange.com
Subject: RE: [Editorial Errata Reported] RFC5520 (3582)
Importance: High

Hi PCE,

Dhurv's Errata Report at
http://www.rfc-editor.org/errata_search.php?rfc=3D5520&eid=3D3582 seems to =
make a good point. The RBNF in RFC 5520 appears to offer the presence of tw=
o copies of <BANDWIDTH> without any explanation, but also to not allow <BAN=
DWIDTH> to be present alongside the <RRO>.

I can see how this happened...
Revision -08 of draft-ietf-pce-pcep used exactly the formulation that found=
 its way into RFC5520, but by the time PCEP became RFC 5440, this issue had=
 been resolved in the PCEP spec. Obviously the fix did not get applied acro=
ss to the Path Key document.

I propose to accept this Errata Report, but since I am a co-author, I just =
want to poll the WG to make sure no=3Done objects.

Thanks,
Adrian

> -----Original Message-----
> From: RFC Errata System [mailto:rfc-editor@rfc-editor.org]
> Sent: 05 April 2013 09:45
> To: rbradfor@cisco.com; jpv@cisco.com; adrian@olddog.co.uk;=20
> stbryant@cisco.com; adrian@olddog.co.uk; jpv@cisco.com;=20
> julien.meuric@orange.com
> Cc: dhruv.ietf@gmail.com; pce@ietf.org; rfc-editor@rfc-editor.org
> Subject: [Editorial Errata Reported] RFC5520 (3582)
>=20
> The following errata report has been submitted for RFC5520,=20
> "Preserving Topology Confidentiality in Inter-Domain Path Computation=20
> Using a Path-Key-Based Mechanism".
>=20
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=3D5520&eid=3D3582
>=20
> --------------------------------------
> Type: Editorial
> Reported by: Dhruv Dhody <dhruv.ietf@gmail.com>
>=20
> Section: 3.2.3
>=20
> Original Text
> -------------
> <request>::=3D <RP>
>                     <segment-computation> | <path-key-expansion>
>=20
>        where:
>           <segment-computation> ::=3D <END-POINTS>
>                                     [<LSPA>]
>                                     [<BANDWIDTH>]
>                                     [<BANDWIDTH>]
>                                     [<metric-list>]
>                                     [<RRO>]
>                                     [<IRO>]
>                                     [<LOAD-BALANCING>]
>           <path-key-expansion> ::=3D <PATH-KEY>
>=20
>=20
>=20
> Corrected Text
> --------------
> <request>::=3D <RP>
>                     <segment-computation> | <path-key-expansion>
>=20
>        where:
>           <segment-computation> ::=3D <END-POINTS>
>                                     [<LSPA>]
>                                     [<BANDWIDTH>]
>                                     [<metric-list>]
>                                     [<RRO>[<BANDWIDTH>]]
>                                     [<IRO>]
>                                     [<LOAD-BALANCING>]
>           <path-key-expansion> ::=3D <PATH-KEY>
>=20
>=20
>=20
> Notes
> -----
> This document defines <path-key-expansion> to allow path request=20
> message to be used for getting the confidential path segment. The=20
> <segment-computation> should be as per RFC5440 itself.
> There is a mistake in the second BANDWIDTH object which should be=20
> placed with RRO as per RFC5440.
>=20
> Instructions:
> -------------
> This errata is currently posted as "Reported". If necessary, please=20
> use "Reply All" to discuss whether it should be verified or rejected.=20
> When a decision is reached, the verifying party (IESG) can log in to=20
> change the status and edit the report, if necessary.
>=20
> --------------------------------------
> RFC5520 (draft-ietf-pce-path-key-05)
> --------------------------------------
> Title               : Preserving Topology Confidentiality in Inter-Domain=
 Path
> Computation Using a Path-Key-Based Mechanism
> Publication Date    : April 2009
> Author(s)           : R. Bradford, Ed., JP. Vasseur, A. Farrel
> Category            : PROPOSED STANDARD
> Source              : Path Computation Element
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG


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Subject: [Pce] [Editorial Errata Reported] RFC5520 (3583)
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The following errata report has been submitted for RFC5520,
"Preserving Topology Confidentiality in Inter-Domain Path Computation Using a Path-Key-Based Mechanism".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=5520&eid=3583

--------------------------------------
Type: Editorial
Reported by: Abdussalam Baryun <abdussalambaryun@gmail.com>

Section: 3.2.3

Original Text
-------------
The format of a PCReq message is as follows:

   <PCReq Message>::= <Common Header>
                      [<SVEC-list>]
                      <request-list>

   where:

      <svec-list>::=<SVEC>[<svec-list>]
      <request-list>::=<request>[<request-list>]


Corrected Text
--------------
The format of a PCReq message is as follows:

   <PCReq Message>::= <Common Header>
                      [<svec-list>]
                      <request-list>

   where:

      <svec-list>::=<SVEC>[<svec-list>]
      <request-list>::=<request>[<request-list>]


Notes
-----
The corrected text is as RFC5440 section 6.4, the editorial difference is <SVEC-list> in RFC5520 and in RFC5440 is <svec-list>.

Instructions:
-------------
This errata is currently posted as "Reported". If necessary, please
use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party (IESG)
can log in to change the status and edit the report, if necessary. 

--------------------------------------
RFC5520 (draft-ietf-pce-path-key-05)
--------------------------------------
Title               : Preserving Topology Confidentiality in Inter-Domain Path Computation Using a Path-Key-Based Mechanism
Publication Date    : April 2009
Author(s)           : R. Bradford, Ed., JP. Vasseur, A. Farrel
Category            : PROPOSED STANDARD
Source              : Path Computation Element
Area                : Routing
Stream              : IETF
Verifying Party     : IESG

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Hi Ina,

I just realized that this mail has been sitting in my draft folder, as I
forgot to send it.... :D

Please find reply as [DD2]


On Thu, Apr 4, 2013 at 5:34 AM, Ina Minei <ina@juniper.net> wrote:

>  Dhruv, ****
>
> ** **
>
> Please see inline %%%.****
>
> ** **
>
> *From:* dhruvdhody@gmail.com [mailto:dhruvdhody@gmail.com] *On Behalf Of =
*Dhruv
> Dhody
> *Sent:* Monday, April 01, 2013 9:32 AM
> *To:* Ina Minei
> *Cc:* pce@ietf.org
> *Subject:* Re: [Pce] Comments on draft-ietf-pce-stateful-pce-02****
>
> ** **
>
> Hi Ina,****
>
> ** **
>
> Thanks for your reply, find the response inline, also I have a few
> comments on -03 version of the draft which is at the end of this mail.***=
*
>
> ** **
>
> Dhruv ****
>
> ** **
>
> On Sat, Mar 23, 2013 at 5:40 AM, Ina Minei <ina@juniper.net> wrote:****
>
> Dhruv, ****
>
> Thank you for the review. Please see answers inline below ###.****
>
> Ina****
>
> *From:* pce-bounces@ietf.org [mailto:pce-bounces@ietf.org] *On Behalf Of =
*Dhruv
> Dhody****
>
> *Sent:* Monday, March 11, 2013 8:03 AM
> *To:* pce@ietf.org
> *Subject:* [Pce] Comments on draft-ietf-pce-stateful-pce-02****
>
>  ****
>
> Hi,****
>
> Please find the review comments for this draft (there is some overlap wit=
h
> comments from Jon, Cyril etc)****
>
> *Major Comments:*****
>
> (1) State synchronisation:  ****
>
> a. PCE should determine the synchronisation is over as soon as possible,
> as updates, request etc are blocked during synchronisation. Maybe the las=
t
> report message can have SYNC=3D0 (similar to F - fragmentation bit in RP
> object) or as Jon suggested an empty report but then the RBNF of PCRpt
> should support it. ****
>
> ### Please see version 03 of the draft.****
>
>  ****
>
> b. I also dont like the use of word 'purge' with respect to old or stale
> entries during PCEP session up/down. A mechanism to mark LSP entries as
> stale and waiting for them to be refreshed after session up and deleted (=
or
> 'purged') only after some timer expiry.****
>
> ### Please see version 03 of the draft. ****
>
>  ****
>
>  ****
>
> (2) The PCRpt Message:****
>
> <state-report> ::=3D
> <LSP>[<path-list>] Where: <path-list>::=3D<path>[<path-list>]. Is this to
> specify primary and backup? In which case the status of the paths needs t=
o
> reported separately in case of standby but we have only one LSP object he=
re
> to specify the operational status. Also LSP-ID of primary and backup woul=
d
> be different. ****
>
>  ****
>
> Also applicable to PCUpd message. ****
>
> I feel the backup path should be updated and reported separately with eac=
h
> having there own encoding for LSP object. ****
>
> ### Clarification on backup paths will be done in the protection doc. I
> agree with you the text needs to be cleaned up in the base spec, will do =
so
> in 04. ****
>
>  ****
>
> (3) Node Identifier TLV****
>
> PCC may use address that survives the session restart (Loopback, MPLS
> LSR-ID etc), i suggest we mention this in the document and provide guidan=
ce
> to implementers to do this if possible. ****
>
> ### the node-id (now renamed to predundancy-group-id) will be further
> clarified in version 04****
>
>  ****
>
> (4) LSP Object: ****
>
> a. What is relationship between the LSP-ID in LSP object and the LSP-ID i=
n
> LSP Identifier TLVs?****
>
> ### The lsp-id in the lsp object was renamed to plsp-id to avoid such
> confusion.****
>
> *[DD]: Rename is good, but i hope relationship between the PLSP-ID and
> the LSP-ID (signalled by RSVP) can be explicitly mentioned. This should
> especially be clarified in the case of MBB. *
>
> ** **
>
> %%% Could you point to the confusing text in the definition of plsp-id?
>
*[DD2]: The description of PLSID-ID on its own is fine, but
draft-crabbe-pce-stateful-pce-mpls-te also has LSP-ID as a part of **LSP
Identifiers TLVs which interns point to RFC3209. So considering PLSP-ID is
the ID generated by PCC, and LSP_ID in LSP Identifier TLV is the one used
in RSVP signalling, the implementers need clarity on how to handle these ID
during MBB (something inline with Tanaka's MBB doc) *
*considering*
*- both existing and modified LSP are being signalled and co-exist for
brief time, *
*- the result of MBB can be success or failure (i.e. the new path given by
active stateful PCE cannot be signaled successfully and the old path is
retained, we need to report to stateful PCE both cases clearly.  *

>   ****
>
> b. There is no mechanism to report the 'pending' state right now? O-Bit a=
s
> zero will mean down, not pending. ****
>
> ### The O-bit will be revisited in version 04.****
>
>  ****
>
> (5) Make-Before-Break: ****
>
> There is a need to clarify how MBB is achieved, what is the LSP-ID in cas=
e
> of updates and reports? ****
>
> ### Please see version 03. ****
>
>  ****
>
>  *[DD]: The updated text though in the right direction is still missing
> key information. I hope the next version clarifies it further. *
>
> %%% could you please indicate what key information is missing?
>
*[DD2]: as per previous comment.*

> ****
>
>    ****
>
> *Minor Comments: *****
>
> (1) Abstract/Introduction****
>
> There is a consistent use of phrase "between and across PCEP sessions".
> Can you clarify? ****
>
> ### LSPs may move from one PCE to another.****
>
>  ****
>
> (2) Re-look the terminology section as some terms are no longer in the
> document. ****
>
> ### Could you send the correction?****
>
>  ****
>
>  *[DD]: Just removal of MPLS TE Global Default Restoration & MPLS TE
> Global Path Protection should do the trick. Both terms are no longer used
> in this document. *****
>
>   (3) LSP Protection ****
>
> In case of delegated PCE, the desired protection may also be configured a=
t
> PCC and the active stateful PCE should support it, the stateful PCE havin=
g
> full control over the protection / restoration settings can only be
> achieved with instantiation capability and should be out of scope from th=
is
> document. ****
>
> ### The whole discussion on protection belongs in a separate document.***=
*
>
>  ****
>
> (4) Delegation****
>
> a. The wording "an LSP may be delegated to one or more PCEs." .. this is
> incorrect, from the reading it looks as if this is happening at the same
> time. ****
>
> ### To a single PCE, text is clarified in 03.****
>
>  ****
>
> b. Active stateful PCE LSP Update (sec 5.6.2)****
>
> OLD:****
>
> A PCC may choose to compress LSP State Updates to only reflect the most
> up to date state, as discussed in the previous section. ****
>
> NEW:****
>
> A PCC may choose to compress LSP State Reports to only reflect the most
> up to date state, as discussed in the previous section. ****
>
> ### Actually, I think we mean updates, not reports (if receiving multiple
> updates, may choose to do state compression during processing)****
>
>  ****
>
>  *[DD]: Okay I understand, it mean that PCC is only taking the latest
> Update into consideration; now i am wondering can PCC choose to compress
> reports and send the most upto date report? (skip sending pending if not
> yet send; or in case of multiple up-down only send the latest state)  * *=
*
> **
>
> ** **
>
> %%% There are some issues with this and error reporting, working through
> these issues now. ****
>
>    (5) Symbolic Path Name TLV****
>
> The length of this TLV must be greater then 0 as well as multiple of four=
.
> ****
>
> ### I think this is not necessary to specify in words, the figure should
> be sufficient.****
>
>  *[DD]: In most cases yes, but this is a case of variable length we must
> make sure extra padding is added and the TLV is aligned. You can take you=
r
> cue from other RFC where variable length TLV exists say RFC4920; RFC6001
> etc  *****
>
>     ****
>
> (6) LSP state DB version TLV (page 40, para 2)****
>
> "Since a PCE does not send LSP updates to a PCC, a PCC should never
> encounter this TLV". LSP updates here can be easily confused with the PCU=
pd
> messages. Kindly reword this. ****
>
> ### Will do.****
>
>  ****
>
> Regards,****
>
> Dhruv****
>
>  ** **
>
> ** **
>
> *Few more comments on the -03 version: *****
>
> ** **
>
> *(1) Section 5.5.2 (Revocation of delegated LSP)*****
>
> ** **
>
> *When a PCC revokes a delegated LSP, PCC immediately clears the LSP state
> received from this PCE. But we should apply Make-Before-Break here as wel=
l,
> that is while the PCC delegates to another PCE or keep the LSP with itsel=
f,
> the LSP should not be teardown immediately.   *
>
> %%% Can you please point me to the text that gives this impression? The
> current text says: =93MAY immediately clear=94, not =93MUST immediately c=
lear=94.
>
*[DD2]: I agree, but say a stateful PCE revokes, PCC may look for another
active stateful PCE to delegate, if not found, it may ask another
stateless/passive PCE or ingress CSPF to recompute and if the paths are
different, it should again apply make-before-break. IMHO Data disruption
should be avoided at all times.  *
*So use of MAY without a mention of MBB doesnt look correct... ** *

> ****
>
> * *
>
> ** **
>
> *(2) Modification of Tunnel configuration at PCC for a delegated LSP. ***=
*
> *
>
> ** **
>
> *Incase of manual config change (say bandwidth, priority) at PCC, how the
> new LSP parameters to be reported to the PCE (maybe a separate delegation
> request with new PLSP-ID) eventually make-before-break should
> be applied here as well. When the text for MBB is added in detail, this
> could also be considered. *
>
> ** **
>
> %%% Can you explain the scenario? The operator should not change
> bw/priority or anything else that is PCE-controlled unless he has revoked
> delegation.
>
*[DD2]: The requirements change, an existing service after paying a premium
amount could be moved to higher class and thus higher LSP priority and more
bandwidth would be reserved. This should be achieved without any traffic
loss. *
*In existing network (local CSPF computation) this is achieved at ingress
by keeping the existing LSP intact, a modified path is computed based on
the new constraints, a modified LSP is signaled (at this time both old and
modified LSP exist), traffic is switched to the new (modified) LSP and then
the old (existing) LSP is tear down. *
*Note the behavior would be the same when stateless or passive PCE is used.=
*
*
*
*We are looking for a similar behaviour in active PCE with delegated LSP,
incase when operator changes the constraints at Ingress via configuration
the new path should consider that and make sure no data disruption happens.
*
*
*
*One way would be, as you mentioned - first revoke the delegation and
resend the delegation with new parameters but also follow
make-before-break? *
*or*
*PCC sends a delegation request for modified LSP with modified parameters
(also linking it to the existing LSP); PCC apply make-before-break as befor=
e
**.  *

> ****
>
> ** **
>
> *(3) Section 6.1 (The PCRpt Message)*****
>
> ** **
>
> *Please consider the comments given
> for draft-crabbe-pce-stateful-pce-mpls-te-00 regarding the PCRpt message
> here as well [
> http://www.ietf.org/mail-archive/web/pce/current/msg03007.html]. *****
>
> ** **
>
> *Thanks! *****
>
> ** **
>
> *Dhruv*****
>
> * *****
>
> ** **
>
> ** **
>

--e89a8f838b7b87005704da79ac8d
Content-Type: text/html; charset=windows-1252
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><font face=3D"verdana, sans-serif" size=3D"1" color=3D"#99=
0000">Hi Ina,</font><div><font face=3D"verdana, sans-serif" size=3D"1" colo=
r=3D"#990000"><br></font></div><div><font face=3D"verdana, sans-serif" size=
=3D"1" color=3D"#990000">I just realized that this mail has been sitting in=
 my draft folder, as I forgot to send it.... :D</font></div>
<div><font face=3D"verdana, sans-serif" size=3D"1" color=3D"#990000"><br></=
font></div><div style><font face=3D"verdana, sans-serif" size=3D"1" color=
=3D"#990000">Please find reply as [DD2]</font></div><div><br></div><div><di=
v class=3D"gmail_extra">
<br><div class=3D"gmail_quote">On Thu, Apr 4, 2013 at 5:34 AM, Ina Minei <s=
pan dir=3D"ltr">&lt;<a href=3D"mailto:ina@juniper.net" target=3D"_blank">in=
a@juniper.net</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" st=
yle=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">






<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)">Dhruv,
<u></u><u></u></span></p>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)"><u></u>=A0<u></u></span></p>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)">Please see inline %%%.<u></u><u></u></span></p>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)"><u></u>=A0<u></u></span></p>
<div style=3D"border-style:solid none none;border-top-color:rgb(181,196,223=
);border-top-width:1pt;padding:3pt 0in 0in">
<p class=3D""><b><span style=3D"font-size:10pt;font-family:Tahoma,sans-seri=
f">From:</span></b><span style=3D"font-size:10pt;font-family:Tahoma,sans-se=
rif"> <a href=3D"mailto:dhruvdhody@gmail.com" target=3D"_blank">dhruvdhody@=
gmail.com</a> [mailto:<a href=3D"mailto:dhruvdhody@gmail.com" target=3D"_bl=
ank">dhruvdhody@gmail.com</a>]
<b>On Behalf Of </b>Dhruv Dhody<br>
<b>Sent:</b> Monday, April 01, 2013 9:32 AM<br>
<b>To:</b> Ina Minei<br>
<b>Cc:</b> <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@ietf.org</=
a><br>
<b>Subject:</b> Re: [Pce] Comments on draft-ietf-pce-stateful-pce-02<u></u>=
<u></u></span></p>
</div>
<p class=3D""><u></u>=A0<u></u></p>
<div><div><div class=3D"h5">
<p class=3D"">Hi Ina,<u></u><u></u></p>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D"">Thanks for your reply, find the response inline, also I have =
a few comments on -03 version of the draft which is at the end of this mail=
.<u></u><u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D"">Dhruv=A0<u></u><u></u></p>
</div>
</div></div><div>
<p class=3D"" style=3D"margin-bottom:12pt"><u></u>=A0<u></u></p>
<div><div><div class=3D"h5">
<p class=3D"">On Sat, Mar 23, 2013 at 5:40 AM, Ina Minei &lt;<a href=3D"mai=
lto:ina@juniper.net" target=3D"_blank">ina@juniper.net</a>&gt; wrote:<u></u=
><u></u></p>
<div>
<div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">Dhruv,
</span><u></u><u></u></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">Thank you for the review. Please see answers inline below ###.</=
span><u></u><u></u></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">Ina</span><u></u><u></u></p>
<p><b><span style=3D"font-size:10pt;font-family:Tahoma,sans-serif">From:</s=
pan></b><span style=3D"font-size:10pt;font-family:Tahoma,sans-serif">
<a href=3D"mailto:pce-bounces@ietf.org" target=3D"_blank">pce-bounces@ietf.=
org</a> [mailto:<a href=3D"mailto:pce-bounces@ietf.org" target=3D"_blank">p=
ce-bounces@ietf.org</a>]
<b>On Behalf Of </b>Dhruv Dhody</span><u></u><u></u></p>
<div style=3D"border-style:solid none none;border-top-color:rgb(181,196,223=
);border-top-width:1pt;padding:3pt 0in 0in">
<p><b><span style=3D"font-size:10pt;font-family:Tahoma,sans-serif">Sent:</s=
pan></b><span style=3D"font-size:10pt;font-family:Tahoma,sans-serif"> Monda=
y, March 11, 2013 8:03 AM<br>
<b>To:</b> <a href=3D"mailto:pce@ietf.org" target=3D"_blank">pce@ietf.org</=
a><br>
<b>Subject:</b> [Pce] Comments on draft-ietf-pce-stateful-pce-02</span><u><=
/u><u></u></p>
</div>
<p>=A0<u></u><u></u></p>
<div>
<div>
<p>Hi,<u></u><u></u></p>
<div>
<p>Please find the review comments for this draft (there is some overlap wi=
th comments from Jon, Cyril etc)<u></u><u></u></p>
</div>
<div>
<p><b><u>Major Comments:</u></b><u></u><u></u></p>
</div>
<div>
<p>(1) State synchronisation: =A0<u></u><u></u></p>
</div>
<div>
<p>a. PCE should determine the synchronisation is over as soon as possible,=
 as updates, request etc are blocked during synchronisation. Maybe the last=
 report message can have SYNC=3D0 (similar to F - fragmentation bit in RP o=
bject) or as Jon suggested an empty
 report but then the RBNF of PCRpt should support it.=A0<u></u><u></u></p>
</div>
</div>
<div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### Please see version 03 of the draft.</span><u></u><u></u></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">=A0</span><u></u><u></u></p>
</div>
<div>
<div>
<p>b. I also dont like the use of word &#39;purge&#39; with respect to old =
or stale entries during PCEP session up/down. A mechanism to mark LSP entri=
es as stale and waiting for them to be refreshed after session up and delet=
ed (or &#39;purged&#39;) only after some timer expiry.<u></u><u></u></p>

</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### Please see version 03 of the draft.
</span><u></u><u></u></p>
</div>
<div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>(2) The PCRpt Message:<u></u><u></u></p>
</div>
<div>
<p>&lt;state-report&gt; ::=3D &lt;LSP&gt;[&lt;path-list&gt;]=A0Where:=A0&lt=
;path-list&gt;::=3D&lt;path&gt;[&lt;path-list&gt;]. Is this to specify prim=
ary and backup? In which case the status of the paths needs to reported=A0s=
eparately=A0in case of standby but we have only one LSP object here to spec=
ify the
 operational status. Also LSP-ID of primary and backup would be different.=
=A0<u></u><u></u></p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>Also applicable to PCUpd message.=A0<u></u><u></u></p>
</div>
</div>
<div>
<div>
<p>I feel the backup path should be updated and reported=A0separately=A0wit=
h each having there own encoding for LSP object.=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### Clarification on backup paths will be done in the protection=
 doc. I agree with you the text needs to be cleaned up in the base spec, wi=
ll do so in 04.
</span><u></u><u></u></p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>(3) Node Identifier TLV<u></u><u></u></p>
</div>
<div>
<div>
<p>PCC may use address that survives the session restart (Loopback, MPLS LS=
R-ID etc), i suggest we mention this in the document and provide guidance t=
o implementers to do this if possible.=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### the node-id (now renamed to predundancy-group-id) will be fu=
rther clarified in version 04</span><u></u><u></u></p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>(4) LSP Object:=A0<u></u><u></u></p>
</div>
<div>
<div>
<p>a. What is relationship between the LSP-ID in LSP object and the LSP-ID =
in LSP Identifier TLVs?<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### The lsp-id in the lsp object was renamed to plsp-id to avoid=
 such confusion.</span><u></u><u></u></p>
</div>
</div>
</div>
</div>
</div></div><div><div><div class=3D"h5">
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">[DD]: Rename is good,=
 but i hope relationship between the PLSP-ID and the LSP-ID (signalled by R=
SVP) can be explicitly mentioned. This should especially be clarified in th=
e case of MBB.=A0</span><u></u><u></u></b></p>

<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)"><u></u>=A0<u></u></span></p>
</div></div><p class=3D""><span style=3D"font-size:11pt;font-family:Calibri=
,sans-serif;color:rgb(31,73,125)">%%% Could you point to the confusing text=
 in the definition of plsp-id?</span></p></div></div></div></div></div></di=
v>
</blockquote><div style><font face=3D"verdana, sans-serif" size=3D"1" color=
=3D"#990000"><b>[DD2]: The description of PLSID-ID on its own is fine, but =
draft-crabbe-pce-stateful-pce-mpls-te also has LSP-ID as a part of=A0</b></=
font><span style=3D"line-height:1.2em"><font face=3D"verdana, sans-serif" s=
ize=3D"1" color=3D"#990000"><b>LSP Identifiers TLVs which interns point to =
RFC3209. So considering PLSP-ID is the ID generated by PCC, and LSP_ID in L=
SP Identifier TLV is the one used in RSVP signalling, the implementers need=
 clarity on how to handle these ID during MBB (something inline with Tanaka=
&#39;s MBB doc)=A0</b></font></span></div>
<div style><span style=3D"line-height:1.2em"><font face=3D"verdana, sans-se=
rif" size=3D"1" color=3D"#990000"><b>considering</b></font></span></div><di=
v style><span style=3D"line-height:1.2em"><font face=3D"verdana, sans-serif=
" size=3D"1" color=3D"#990000"><b>- both existing and modified LSP are bein=
g signalled and co-exist for brief time,=A0</b></font></span></div>
<div style><font face=3D"verdana, sans-serif" size=3D"1" color=3D"#990000">=
<b><span style=3D"line-height:1.2em">- the result of MBB can be success or =
failure (i.e. the new path given by active stateful PCE cannot be signaled=
=A0</span><span style=3D"line-height:15.59375px">successfully</span><span s=
tyle=3D"line-height:1.2em">=A0and the old path is retained, we need to repo=
rt to stateful PCE both cases clearly. =A0</span></b></font></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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>
<div><div class=3D"im"><blockquote style=3D"border-style:none none none sol=
id;border-left-color:rgb(204,204,204);border-left-width:1pt;padding:0in 0in=
 0in 6pt;margin-left:4.8pt;margin-right:0in"><div><div><div><div><p><span s=
tyle=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"=
>=A0=A0</span><u></u><u></u></p>

</div>
<div>
<div>
<p>b. There is no=A0mechanism=A0to report the &#39;pending&#39; state right=
 now? O-Bit as zero will mean down, not pending.=A0<u></u><u></u></p>
</div>
</div>
<div>
<p><span style=3D"color:rgb(31,73,125)">### The O-bit will be revisited in =
version 04.</span><u></u><u></u></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">=A0</span><u></u><u></u></p>
</div>
<div>
<p>(5) Make-Before-Break:=A0<u></u><u></u></p>
</div>
<div>
<div>
<p>There is a need to clarify how MBB is achieved, what is the LSP-ID in ca=
se of updates and reports?=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### Please see version 03.
</span><u></u><u></u></p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
</div>
</div>
</div>
</blockquote>
</div><div><div class=3D"im">
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">[DD]: The updated tex=
t though in the right direction is still missing key information. I hope th=
e next version clarifies it further.=A0</span><u></u><u></u></b></p>
</div><p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-=
serif;color:rgb(31,73,125)">%%% could you please indicate what key informat=
ion is missing?</span></p></div></div></div></div></div></div></blockquote>
<div><b style=3D"color:rgb(153,0,0);font-family:verdana,sans-serif;font-siz=
e:x-small">[DD2]: as per previous comment.</b>=A0</div><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;borde=
r-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><div><div><div><div=
><p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif=
;color:rgb(31,73,125)">
<u></u><u></u></span></p>
</div><div class=3D"im">
<blockquote style=3D"border-style:none none none solid;border-left-color:rg=
b(204,204,204);border-left-width:1pt;padding:0in 0in 0in 6pt;margin-left:4.=
8pt;margin-right:0in">
<div>
<div>
<div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p><b><u>Minor Comments:=A0</u></b><u></u><u></u></p>
</div>
<div>
<p>(1) Abstract/Introduction<u></u><u></u></p>
</div>
<div>
<div>
<p>There is a consistent use of phrase &quot;between and across PCEP sessio=
ns&quot;. Can you clarify?=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### LSPs may move from one PCE to another.</span><u></u><u></u><=
/p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<div>
<p>(2) Re-look the terminology section as some terms are no longer in the d=
ocument.=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### Could you send the correction?</span><u></u><u></u></p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">[DD]: Just removal of=
 MPLS TE Global=A0Default=A0Restoration &amp; MPLS TE Global Path Protectio=
n should do the trick. Both terms are no longer used in this document.=A0</=
span></b><u></u><u></u></p>

</div>
<blockquote style=3D"border-style:none none none solid;border-left-color:rg=
b(204,204,204);border-left-width:1pt;padding:0in 0in 0in 6pt;margin-left:4.=
8pt;margin-right:0in">
<div>
<div>
<div>
<div>
<p>(3) LSP Protection=A0<u></u><u></u></p>
</div>
<div>
<div>
<p>In case of delegated PCE, the desired protection may also be configured =
at PCC and the active stateful PCE should support it, the stateful PCE havi=
ng full control over the protection / restoration settings can only be achi=
eved with instantiation capability
 and should be out of scope from this document.=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### The whole discussion on protection belongs in a separate doc=
ument.</span><u></u><u></u></p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>(4)=A0Delegation<u></u><u></u></p>
</div>
<div>
<div>
<p>a. The wording &quot;an LSP may be delegated to one or more PCEs.&quot; =
.. this is incorrect, from the reading it looks as if this is happening at =
the same time.=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### To a single PCE, text is clarified in 03.</span><u></u><u></=
u></p>
</div>
<div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>b. Active stateful PCE LSP Update (sec 5.6.2)<u></u><u></u></p>
</div>
<div>
<p>OLD:<u></u><u></u></p>
</div>
<div>
<p>A PCC=A0may choose to compress LSP State Updates to only reflect the mos=
t up=A0to date state, as discussed in the previous section.=A0<u></u><u></u=
></p>
</div>
<div>
<p>NEW:<u></u><u></u></p>
</div>
</div>
<div>
<div>
<div>
<p>A PCC=A0may choose to compress LSP State Reports to only reflect the mos=
t up=A0to date state, as discussed in the previous section.=A0<u></u><u></u=
></p>
</div>
</div>
<div>
<p><span style=3D"color:rgb(31,73,125)">### Actually, I think we mean updat=
es, not reports (if receiving multiple updates, may choose to do state comp=
ression during processing)</span><u></u><u></u></p>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">=A0</span><u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div><div><div class=3D"im">
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">[DD]: Okay I understa=
nd, it mean that PCC is only taking the latest Update into consideration; n=
ow i am wondering can PCC choose to compress reports and send the most upto=
 date report? (skip sending pending
 if not yet send; or in case of multiple up-down only send the latest state=
) =A0</span></b>=A0<u></u><u></u></p>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)"><u></u>=A0<u></u></span></p>
</div><p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-=
serif;color:rgb(31,73,125)">%%% There are some issues with this and error r=
eporting, working through these issues now.
<u></u><u></u></span></p>
</div><div class=3D"im">
<blockquote style=3D"border-style:none none none solid;border-left-color:rg=
b(204,204,204);border-left-width:1pt;padding:0in 0in 0in 6pt;margin-left:4.=
8pt;margin-right:0in">
<div>
<div>
<div>
<div>
<div>
<div>
<p>(5) Symbolic Path Name TLV<u></u><u></u></p>
</div>
</div>
<div>
<div>
<p>The length of this TLV must be greater then 0 as well as multiple of fou=
r.=A0<u></u><u></u></p>
</div>
<p><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;color:rgb(3=
1,73,125)">### I think this is not necessary to specify in words, the figur=
e should be sufficient.</span><u></u><u></u></p>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">[DD]: In most cases y=
es, but this is a case of variable length we must make sure extra padding i=
s added and the TLV is aligned. You can take your cue from other RFC where =
variable length TLV exists say RFC4920;
 RFC6001 etc =A0</span></b><u></u><u></u></p>
</div>
<blockquote style=3D"border-style:none none none solid;border-left-color:rg=
b(204,204,204);border-left-width:1pt;padding:0in 0in 0in 6pt;margin-left:4.=
8pt;margin-right:0in">
<div>
<div>
<div>
<div>
<div>
<p>=A0<u></u><u></u></p>
</div>
</div>
<div>
<div>
<p>(6) LSP state DB version TLV (page 40, para 2)<u></u><u></u></p>
</div>
<div>
<p>&quot;Since a PCE does not send LSP updates to a PCC, a PCC should never=
 encounter this TLV&quot;.=A0LSP updates here can be easily confused with t=
he PCUpd messages. Kindly reword this.=A0<u></u><u></u></p>
</div>
</div>
<div>
<p><span style=3D"color:rgb(31,73,125)">### Will do.</span><u></u><u></u></=
p>
</div>
<div>
<p>=A0<u></u><u></u></p>
</div>
<div>
<p>Regards,<u></u><u></u></p>
</div>
<div>
<p>Dhruv<u></u><u></u></p>
</div>
</div>
</div>
</div>
</blockquote>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">Few more comments on =
the -03 version:=A0</span></b><u></u><u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">(1) Section 5.5.2 (Re=
vocation of delegated LSP)</span></b><u></u><u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
</div><div><div class=3D"im">
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">When a PCC revokes a =
delegated LSP, PCC immediately clears the LSP state received from this PCE.=
 But we should apply Make-Before-Break here as well, that is while the PCC =
delegates to another PCE or keep the
 LSP with itself, the LSP should not be teardown immediately. =A0=A0</span>=
<u></u><u></u></b></p>
</div><p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-=
serif;color:rgb(31,73,125)">%%% Can you please point me to the text that gi=
ves this impression? The current text says: =93MAY immediately clear=94, no=
t =93MUST immediately clear=94.</span></p>
</div></div></div></div></div></div></blockquote><div><b style=3D"color:rgb=
(153,0,0);font-family:verdana,sans-serif;font-size:x-small">[DD2]: I agree,=
 but say a stateful PCE revokes, PCC may look for another active stateful P=
CE to delegate, if not found, it may ask another stateless/passive PCE or i=
ngress CSPF to recompute and if the paths are different, it should again ap=
ply make-before-break. IMHO Data disruption should be avoided at all times.=
 =A0</b></div>
<div style><b style=3D"color:rgb(153,0,0);font-family:verdana,sans-serif;fo=
nt-size:x-small">So use of MAY without a mention of MBB doesnt look correct=
...=A0</b><b style=3D"color:rgb(153,0,0);font-family:verdana,sans-serif;fon=
t-size:x-small">=A0</b>=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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>
<div><div><p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,s=
ans-serif;color:rgb(31,73,125)">
<u></u><u></u></span></p>
<p class=3D""><b><span style=3D"font-size:11pt;font-family:Calibri,sans-ser=
if;color:rgb(31,73,125)"><u></u>=A0<u></u></span></b></p>
</div><div class=3D"im">
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">(2) Modification of T=
unnel configuration at PCC for a delegated LSP.=A0</span></b><u></u><u></u>=
</p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">Incase of manual conf=
ig change (say bandwidth, priority) at PCC, how the new LSP parameters to b=
e reported to the PCE (maybe a=A0separate=A0delegation request with new PLS=
P-ID)=A0eventually=A0make-before-break should
 be=A0applied=A0here as well. When the text for MBB is added in=A0detail, t=
his could also be considered.=A0</span><u></u><u></u></b></p>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)"><u></u>=A0<u></u></span></p>
</div>
</div><div>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)">%%% Can you explain the scenario? The operator should=
 not change bw/priority or anything else that is PCE-controlled unless he h=
as revoked delegation.</span></p>
</div></div></div></div></div></div></blockquote><div><b style=3D"color:rgb=
(153,0,0);font-family:verdana,sans-serif;font-size:x-small">[DD2]: The requ=
irements change, an existing service after paying a premium amount could be=
 moved to higher class and thus higher LSP priority and more bandwidth woul=
d be reserved. This should be achieved without any traffic loss.=A0</b></di=
v>
<div style><b><font color=3D"#990000" face=3D"verdana, sans-serif" size=3D"=
1">In existing network (local CSPF computation) this is achieved at ingress=
 by keeping the existing LSP intact, a modified path is computed based on t=
he new=A0constraints, a modified LSP is signaled (at this time both old and=
 modified LSP exist), traffic is switched to the new (modified) LSP and the=
n the old (existing) LSP is tear down.=A0</font></b></div>
<div style><font color=3D"#990000" face=3D"verdana, sans-serif" size=3D"1">=
<b>Note the behavior would be the same when stateless or passive PCE is use=
d.</b></font></div><div style><b><font color=3D"#990000" face=3D"verdana, s=
ans-serif" size=3D"1"><br>
</font></b></div><div style><b><font color=3D"#990000" face=3D"verdana, san=
s-serif" size=3D"1">We are looking for a similar behaviour in active PCE wi=
th delegated LSP, incase when operator changes the constraints at Ingress v=
ia configuration the new path should consider that and make sure no data di=
sruption happens.=A0</font></b></div>
<div style><b><font color=3D"#990000" face=3D"verdana, sans-serif" size=3D"=
1"><br></font></b></div><div style><b><font color=3D"#990000" face=3D"verda=
na, sans-serif" size=3D"1">One way would be, as you mentioned - first revok=
e the delegation and resend the delegation with new parameters but also fol=
low make-before-break?=A0</font></b></div>
<div style><b><font color=3D"#990000" face=3D"verdana, sans-serif" size=3D"=
1">or</font></b></div><div style><b><font color=3D"#990000" face=3D"verdana=
, sans-serif" size=3D"1">PCC sends a delegation request for modified LSP wi=
th modified parameters (also linking it to the existing LSP); PCC apply mak=
e-before-break as before</font></b><b><font color=3D"#990000" face=3D"verda=
na, sans-serif" size=3D"1">. =A0</font></b></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;p=
adding-left:1ex"><div lang=3D"EN-US" link=3D"blue" vlink=3D"purple"><div><d=
iv><div>
<div><div><p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,s=
ans-serif;color:rgb(31,73,125)">
<u></u><u></u></span></p>
<p class=3D""><span style=3D"font-size:11pt;font-family:Calibri,sans-serif;=
color:rgb(31,73,125)"><u></u>=A0<u></u></span></p>
</div><div class=3D"im">
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">(3) Section 6.1 (The =
PCRpt Message)</span></b><u></u><u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">Please consider the c=
omments given for=A0draft-crabbe-pce-stateful-pce-mpls-te-00 regarding the =
PCRpt message here as well=A0[<a href=3D"http://www.ietf.org/mail-archive/w=
eb/pce/current/msg03007.html" target=3D"_blank">http://www.ietf.org/mail-ar=
chive/web/pce/current/msg03007.html</a>].=A0</span></b><u></u><u></u></p>

</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">Thanks!=A0</span></b>=
<u></u><u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">Dhruv</span></b><u></=
u><u></u></p>
</div>
<div>
<p class=3D""><b><span style=3D"color:rgb(116,27,71)">=A0</span></b><u></u>=
<u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
<div>
<p class=3D""><u></u>=A0<u></u></p>
</div>
</div></div>
</div>
</div>
</div>
</div>

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

--e89a8f838b7b87005704da79ac8d--

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*Hi,*
*
*
*We presented the ID for inclusion/exclusion of abstract nodes for a subset
of P2MP destinations in PCEP in Atlanta [
http://www.ietf.org/proceedings/85/slides/slides-85-pce-1.pdf]. *
*
*
*Here is revision....*
*
*
*Comments and feedback, always welcome. *
*
*
*Dhruv *

---------- Forwarded message ----------
From: <internet-drafts@ietf.org>
Date: Tue, Apr 16, 2013 at 11:30 AM
Subject: New Version Notification for
draft-dhody-pce-pcep-p2mp-per-destination-04.txt
To: dhruv.ietf@gmail.com
Cc: dhruv.dhody@huawei.com, venugopalreddyk@huawei.com,
udayasree.palle@huawei.com



A new version of I-D, draft-dhody-pce-pcep-p2mp-per-destination-04.txt
has been successfully submitted by Dhruv Dhody and posted to the
IETF repository.

Filename:        draft-dhody-pce-pcep-p2mp-per-destination
Revision:        04
Title:           Supporting explicit inclusion or exclusion of abstract
nodes for a subset of P2MP destinations in Path Computation Element
Communication Protocol (PCEP).
Creation date:   2013-04-16
Group:           Individual Submission
Number of pages: 12
URL:
http://www.ietf.org/internet-drafts/draft-dhody-pce-pcep-p2mp-per-destination-04.txt
Status:
http://datatracker.ietf.org/doc/draft-dhody-pce-pcep-p2mp-per-destination
Htmlized:
http://tools.ietf.org/html/draft-dhody-pce-pcep-p2mp-per-destination-04
Diff:
http://www.ietf.org/rfcdiff?url2=draft-dhody-pce-pcep-p2mp-per-destination-04

Abstract:
   The ability to determine paths of point-to-multipoint (P2MP)
   Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS)
   Traffic Engineering Label Switched Paths (TE LSPs) is one the key
   requirements for Path Computation Element (PCE).  [RFC6006] and
   [PCE-P2MP-PROCEDURES] describes these mechanisms for intra and inter
   domain path computation via PCE.

   This document describes the motivation and PCE communication Protocol
   (PCEP) extension for explicitly specifying abstract nodes for
   inclusion or exclusion for a subset of destinations during the Point
   to Multipoint (P2MP) path computation via PCE.




The IETF Secretariat

--14dae93408e74e9f6d04da79c2ac
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<div dir=3D"ltr"><font face=3D"verdana, sans-serif" size=3D"1" color=3D"#38=
761d"><b>Hi,</b></font><div><font face=3D"verdana, sans-serif" size=3D"1" c=
olor=3D"#38761d"><b><br></b></font></div><div><font face=3D"verdana, sans-s=
erif" size=3D"1" color=3D"#38761d"><b>We presented the ID for=A0<span style=
=3D"white-space:pre-wrap">inclusion/exclusion of abstract nodes for a </spa=
n><span style=3D"white-space:pre-wrap">subset of P2MP destinations in PCEP =
in Atlanta [</span><span style=3D"white-space:pre-wrap"><a href=3D"http://w=
ww.ietf.org/proceedings/85/slides/slides-85-pce-1.pdf">http://www.ietf.org/=
proceedings/85/slides/slides-85-pce-1.pdf</a>].=A0</span></b></font></div>
<div><span style=3D"white-space:pre-wrap"><font face=3D"verdana, sans-serif=
" size=3D"1" color=3D"#38761d"><b><br></b></font></span></div><div><span st=
yle=3D"white-space:pre-wrap"><font face=3D"verdana, sans-serif" size=3D"1" =
color=3D"#38761d"><b>Here is revision....</b></font></span></div>
<div><span style=3D"white-space:pre-wrap"><font face=3D"verdana, sans-serif=
" size=3D"1" color=3D"#38761d"><b><br></b></font></span></div><div><span st=
yle=3D"white-space:pre-wrap"><font face=3D"verdana, sans-serif" size=3D"1" =
color=3D"#38761d"><b>Comments and feedback, always welcome.=A0</b></font></=
span></div>
<div><span style=3D"white-space:pre-wrap"><font face=3D"verdana, sans-serif=
" size=3D"1" color=3D"#38761d"><b><br></b></font></span></div><div style><s=
pan style=3D"white-space:pre-wrap"><font face=3D"verdana, sans-serif" size=
=3D"1" color=3D"#38761d"><b>Dhruv </b></font></span></div>
<div><br><div class=3D"gmail_quote">---------- Forwarded message ----------=
<br>From: <b class=3D"gmail_sendername"></b> <span dir=3D"ltr">&lt;<a href=
=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a>&gt;</span=
><br>
Date: Tue, Apr 16, 2013 at 11:30 AM<br>Subject: New Version Notification fo=
r draft-dhody-pce-pcep-p2mp-per-destination-04.txt<br>To: <a href=3D"mailto=
:dhruv.ietf@gmail.com">dhruv.ietf@gmail.com</a><br>Cc: <a href=3D"mailto:dh=
ruv.dhody@huawei.com">dhruv.dhody@huawei.com</a>, <a href=3D"mailto:venugop=
alreddyk@huawei.com">venugopalreddyk@huawei.com</a>, <a href=3D"mailto:uday=
asree.palle@huawei.com">udayasree.palle@huawei.com</a><br>
<br><br><br>
A new version of I-D, draft-dhody-pce-pcep-p2mp-per-destination-04.txt<br>
has been successfully submitted by Dhruv Dhody and posted to the<br>
IETF repository.<br>
<br>
Filename: =A0 =A0 =A0 =A0draft-dhody-pce-pcep-p2mp-per-destination<br>
Revision: =A0 =A0 =A0 =A004<br>
Title: =A0 =A0 =A0 =A0 =A0 Supporting explicit inclusion or exclusion of ab=
stract nodes for a subset of P2MP destinations in Path Computation Element =
Communication Protocol (PCEP).<br>
Creation date: =A0 2013-04-16<br>
Group: =A0 =A0 =A0 =A0 =A0 Individual Submission<br>
Number of pages: 12<br>
URL: =A0 =A0 =A0 =A0 =A0 =A0 <a href=3D"http://www.ietf.org/internet-drafts=
/draft-dhody-pce-pcep-p2mp-per-destination-04.txt" target=3D"_blank">http:/=
/www.ietf.org/internet-drafts/draft-dhody-pce-pcep-p2mp-per-destination-04.=
txt</a><br>

Status: =A0 =A0 =A0 =A0 =A0<a href=3D"http://datatracker.ietf.org/doc/draft=
-dhody-pce-pcep-p2mp-per-destination" target=3D"_blank">http://datatracker.=
ietf.org/doc/draft-dhody-pce-pcep-p2mp-per-destination</a><br>
Htmlized: =A0 =A0 =A0 =A0<a href=3D"http://tools.ietf.org/html/draft-dhody-=
pce-pcep-p2mp-per-destination-04" target=3D"_blank">http://tools.ietf.org/h=
tml/draft-dhody-pce-pcep-p2mp-per-destination-04</a><br>
Diff: =A0 =A0 =A0 =A0 =A0 =A0<a href=3D"http://www.ietf.org/rfcdiff?url2=3D=
draft-dhody-pce-pcep-p2mp-per-destination-04" target=3D"_blank">http://www.=
ietf.org/rfcdiff?url2=3Ddraft-dhody-pce-pcep-p2mp-per-destination-04</a><br=
>
<br>
Abstract:<br>
=A0 =A0The ability to determine paths of point-to-multipoint (P2MP)<br>
=A0 =A0Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS)<br=
>
=A0 =A0Traffic Engineering Label Switched Paths (TE LSPs) is one the key<br=
>
=A0 =A0requirements for Path Computation Element (PCE). =A0[RFC6006] and<br=
>
=A0 =A0[PCE-P2MP-PROCEDURES] describes these mechanisms for intra and inter=
<br>
=A0 =A0domain path computation via PCE.<br>
<br>
=A0 =A0This document describes the motivation and PCE communication Protoco=
l<br>
=A0 =A0(PCEP) extension for explicitly specifying abstract nodes for<br>
=A0 =A0inclusion or exclusion for a subset of destinations during the Point=
<br>
=A0 =A0to Multipoint (P2MP) path computation via PCE.<br>
<br>
<br>
<br>
<br>
The IETF Secretariat<br>
<br>
</div><br></div></div>

--14dae93408e74e9f6d04da79c2ac--

From internet-drafts@ietf.org  Tue Apr 16 06:14:55 2013
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Subject: [Pce] I-D Action: draft-ietf-pce-vendor-constraints-09.txt
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A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
 This draft is a work item of the Path Computation Element Working Group of=
 the IETF.

	Title           : Conveying Vendor-Specific Constraints in the Path Comput=
ation Element Protocol
	Author(s)       : Fatai Zhang
                          Adrian Farrel
	Filename        : draft-ietf-pce-vendor-constraints-09.txt
	Pages           : 12
	Date            : 2013-04-16

Abstract:
   The Path Computation Element Protocol (PCEP) is used to convey path
   computation requests and responses between Path Computation Clients
   (PCCs) and Path Computation Elements (PCEs), and also between
   cooperating PCEs. In PCEP the path computation requests carry
   details of the constraints and objective functions that the PCC
   wishes the PCE to apply in its computation.

   The mechanisms defined for indicating objective functions include
   the capability to convey vendor-specific objective functions. This
   document defines a facility to carry vendor-specific constraints in
   PCEP.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-vendor-constraints

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-pce-vendor-constraints-09

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-vendor-constraints-09


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


From adrian@olddog.co.uk  Tue Apr 16 06:21:19 2013
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Hi,

This is just a refresh of the I-D with a few layout changes to keep =
idnits happy.

Fatai and I are discussing a few additional changes with Ina. The intent =
is to make the work slightly more widely applicable (specifically to =
PCEP extensions for stateful PCE) without causing any changes to the use =
cases already defined. I'll propose some text modifications to the list =
shortly.

Our hope (well, Fatai and I have this hope) is that after those changes =
the document will be ready for WG last call. So now is a good time to =
review and comment.

Cheers,
Adrian

> A new version of I-D, draft-ietf-pce-vendor-constraints-09.txt
> has been successfully submitted by Adrian Farrel and posted to the
> IETF repository.
>=20
> Filename:	 draft-ietf-pce-vendor-constraints
> Revision:	 09
> Title:		 Conveying Vendor-Specific Constraints in the Path Computation
> Element Protocol
> Creation date:	 2013-04-16
> Group:		 pce
> Number of pages: 12
> URL:             =
http://www.ietf.org/internet-drafts/draft-ietf-pce-vendor-
> constraints-09.txt
> Status:          =
http://datatracker.ietf.org/doc/draft-ietf-pce-vendor-constraints
> Htmlized:        =
http://tools.ietf.org/html/draft-ietf-pce-vendor-constraints-09
> Diff:            =
http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-vendor-constraints-09
>=20
> Abstract:
>    The Path Computation Element Protocol (PCEP) is used to convey path
>    computation requests and responses between Path Computation Clients
>    (PCCs) and Path Computation Elements (PCEs), and also between
>    cooperating PCEs. In PCEP the path computation requests carry
>    details of the constraints and objective functions that the PCC
>    wishes the PCE to apply in its computation.
>=20
>    The mechanisms defined for indicating objective functions include
>    the capability to convey vendor-specific objective functions. This
>    document defines a facility to carry vendor-specific constraints in
>    PCEP.


From adrian@olddog.co.uk  Sat Apr 20 12:26:38 2013
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: <pce@ietf.org>
Date: Sat, 20 Apr 2013 20:26:23 +0100
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Subject: [Pce] What are your unanswered questions about PCE?
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Hi,

Dan and I have updated our draft as below.

We added the table of comparison of stateful/active/etc. as recently =
discussed on the list.
Also a section about the relationship with SDN.
And a paragraph about the potential for using PCEP as an =
information-gathering protocol.

That covers, I think, everything that has been discussed on the list.

We would be really happy to hear from you if you have questions about =
PCE that you feel are unanswered in the community.

Thanks,
Adrian

> -----Original Message-----
> From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> Sent: 20 April 2013 20:18
> To: Adrian Farrel; Daniel King
> Subject: New Version Notification for =
draft-farrkingel-pce-questions-02.txt
>=20
>=20
> A new version of I-D, draft-farrkingel-pce-questions-02.txt
> has been successfully submitted by Adrian Farrel and posted to the
> IETF repository.
>=20
> Filename:	 draft-farrkingel-pce-questions
> Revision:	 02
> Title:		 Unanswered Questions in the Path Computation Element
> Architecture
> Creation date:	 2013-04-20
> Group:		 Individual Submission
> Number of pages: 24
> URL:             =
http://www.ietf.org/internet-drafts/draft-farrkingel-pce-questions-
> 02.txt
> Status:          =
http://datatracker.ietf.org/doc/draft-farrkingel-pce-questions
> Htmlized:        =
http://tools.ietf.org/html/draft-farrkingel-pce-questions-02
> Diff:            =
http://www.ietf.org/rfcdiff?url2=3Ddraft-farrkingel-pce-questions-02


From adrian@olddog.co.uk  Mon Apr 22 22:01:25 2013
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: <pce@ietf.org>
Date: Tue, 23 Apr 2013 06:01:07 +0100
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Subject: [Pce] Revising PCEP Vendor Constraints
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Hi,

I spent some time discussing changes to draft-ietf-pce-vendor-constraints with
Ina and Fatai. It turns out that the main change is to rename the object and TLV
from "vendor constraints" to "vendor information". The scope of *this* draft
still remains vendor constraints, but largely through this renaming, we make the
mechanism available for other vendor-specific uses documented in future
specifications.

Otherwise, it seems to me that the changes are not actually substantive, so I
will post a new revision and let you comment. If you have any issues, let's
discuss them and see what additional changes we need to make.

Cheers,
Adrian


From internet-drafts@ietf.org  Mon Apr 22 22:05:20 2013
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A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
 This draft is a work item of the Path Computation Element Working Group of=
 the IETF.

	Title           : Conveying Vendor-Specific Constraints in the Path Comput=
ation Element Protocol
	Author(s)       : Fatai Zhang
                          Adrian Farrel
	Filename        : draft-ietf-pce-vendor-constraints-10.txt
	Pages           : 11
	Date            : 2013-04-22

Abstract:
   The Path Computation Element Protocol (PCEP) is used to convey path
   computation requests and responses between Path Computation Clients
   (PCCs) and Path Computation Elements (PCEs), and also between
   cooperating PCEs.  In PCEP the path computation requests carry
   details of the constraints and objective functions that the PCC
   wishes the PCE to apply in its computation.

   This document defines a facility to carry vendor-specific information
   in PCEP using a dedicated object and a new Type-Length-Variable that
   can be carried in any existing PCEP object.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-vendor-constraints

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-pce-vendor-constraints-10

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-vendor-constraints-10


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


From johnsonhammond1@hushmail.com  Sat Apr 27 15:47:31 2013
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Subject: [Pce] Biggest Fake Conference in Computer Science
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Biggest Fake Conference in Computer Science


We are researchers from different parts of the world and conducted a study on  
the world’s biggest bogus computer science conference WORLDCOMP 
( http://sites.google.com/site/worlddump1 ) organized by Prof. Hamid Arabnia 
from University of Georgia, USA.


We submitted a fake paper to WORLDCOMP 2011 and again (the same paper 
with a modified title) to WORLDCOMP 2012. This paper had numerous 
fundamental mistakes. Sample statements from that paper include: 

(1). Binary logic is fuzzy logic and vice versa
(2). Pascal developed fuzzy logic
(3). Object oriented languages do not exhibit any polymorphism or inheritance
(4). TCP and IP are synonyms and are part of OSI model 
(5). Distributed systems deal with only one computer
(6). Laptop is an example for a super computer
(7). Operating system is an example for computer hardware


Also, our paper did not express any conceptual meaning.  However, it 
was accepted both the times without any modifications (and without 
any reviews) and we were invited to submit the final paper and a 
payment of $500+ fee to present the paper. We decided to use the 
fee for better purposes than making Prof. Hamid Arabnia (Chairman 
of WORLDCOMP) rich. After that, we received few reminders from 
WORLDCOMP to pay the fee but we never responded. 


We MUST say that you should look at the above website if you have any thoughts 
to submit a paper to WORLDCOMP.  DBLP and other indexing agencies have stopped 
indexing WORLDCOMP’s proceedings since 2011 due to its fakeness. See 
http://www.informatik.uni-trier.de/~ley/db/conf/icai/index.html for of one of the 
conferences of WORLDCOMP and notice that there is no listing after 2010. See Section 2 of
http://sites.google.com/site/dumpconf for comments from well-known researchers 
about WORLDCOMP. 


The status of your WORLDCOMP papers can be changed from scientific
to other (i.e., junk or non-technical) at any time. Better not to have a paper than 
having it in WORLDCOMP and spoil the resume and peace of mind forever!


Our study revealed that WORLDCOMP is a money making business, 
using University of Georgia mask, for Prof. Hamid Arabnia. He is throwing 
out a small chunk of that money (around 20 dollars per paper published 
in WORLDCOMP’s proceedings) to his puppet (Mr. Ashu Solo or A.M.G. Solo) 
who publicizes WORLDCOMP and also defends it at various forums, using 
fake/anonymous names. The puppet uses fake names and defames other conferences
to divert traffic to WORLDCOMP. He also makes anonymous phone calls and tries to 
threaten the critiques of WORLDCOMP (See Item 7 of Section 5 of above website). 
That is, the puppet does all his best to get a maximum number of papers published 
at WORLDCOMP to get more money into his (and Prof. Hamid Arabnia’s) pockets. 


Monte Carlo Resort (the venue of WORLDCOMP for more than 10 years, until 2012) has 
refused to provide the venue for WORLDCOMP’13 because of the fears of their image 
being tarnished due to WORLDCOMP’s fraudulent activities. That is why WORLDCOMP’13 
is taking place at a different resort. WORLDCOMP will not be held after 2013. 


The draft paper submission deadline is over but still there are no committee 
members, no reviewers, and there is no conference Chairman. The only contact 
details available on WORLDCOMP’s website is just an email address! 

Let us make a direct request to Prof. Hamid arabnia: publish all reviews for 
all the papers (after blocking identifiable details) since 2000 conference. Reveal 
the names and affiliations of all the reviewers (for each year) and how many 
papers each reviewer had reviewed on average. We also request him to look at 
the Open Challenge (Section 6) at https://sites.google.com/site/moneycomp1 


Sorry for posting to multiple lists. Spreading the word is the only way to stop 
this bogus conference. Please forward this message to other mailing lists and people. 


We are shocked with Prof. Hamid Arabnia and his puppet’s activities 
http://worldcomp-fake-bogus.blogspot.com   Search Google using the 
keyword worldcomp fake for additional links.


From julien.meuric@orange.com  Tue Apr 30 02:13:05 2013
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Date: Tue, 30 Apr 2013 11:12:57 +0200
From: Julien Meuric <julien.meuric@orange.com>
Organization: France Telecom
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Cc: "pce@ietf.org" <pce@ietf.org>
Subject: [Pce] Last IPR Check on draft-ietf-pce-gmpls-aps-req-07
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Dear authors of the aforementioned I-D,

Are you aware of any other IPR that applies to 
draft-ietf-pce-gmpls-aps-req? If so, has all this IPR been disclosed in 
compliance with IETF IPR rules? (see RFCs 3979, 4879, 3669 and 5378 for 
more details)

Note that an IPR was disclosed on this I-D last summer.

A response from each of you is expected.

Regards,

JP & Julien

