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Thread-Topic: [Bier] Last Calls for OAM Requirements, PMTUD, Performance Measurement
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From: Mach Chen <mach.chen@huawei.com>
To: Tony Przygienda <tonysietf@gmail.com>, "bier@ietf.org" <bier@ietf.org>
Thread-Topic: [Bier] Last Calls for OAM Requirements, PMTUD, Performance Measurement
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Subject: Re: [Bier] Last Calls for OAM Requirements, PMTUD, Performance Measurement
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Bit Indexed Explicit Replication WG of the IETF.

        Title           : OSPF Extensions for BIER
        Authors         : Peter Psenak
                          Nagendra Kumar
                          IJsbrand Wijnands
                          Andrew Dolganow
                          Tony Przygienda
                          Jeffrey Zhang
                          Sam Aldrin
	Filename        : draft-ietf-bier-ospf-bier-extensions-10.txt
	Pages           : 9
	Date            : 2017-12-04

Abstract:
   Bit Index Explicit Replication (BIER) is an architecture that
   provides multicast forwarding through a "BIER domain" without
   requiring intermediate routers to maintain multicast related per-flow
   state.  Neither does BIER require an explicit tree-building protocol
   for its operation.  A multicast data packet enters a BIER domain at a
   "Bit-Forwarding Ingress Router" (BFIR), and leaves the BIER domain at
   one or more "Bit-Forwarding Egress Routers" (BFERs).  The BFIR router
   adds a BIER header to the packet.  Such header contains a bit-string
   in which each bit represents exactly one BFER to forward the packet
   to.  The set of BFERs to which the multicast packet needs to be
   forwarded is expressed by the according set of bits set in BIER
   packet header.

   This document describes the OSPF protocol extension required for BIER
   with MPLS encapsulation.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-bier-ospf-bier-extensions/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-bier-ospf-bier-extensions-10
https://datatracker.ietf.org/doc/html/draft-ietf-bier-ospf-bier-extensions-10

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-bier-ospf-bier-extensions-10


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

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Date: Mon, 04 Dec 2017 08:29:37 -0800
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Tony Przygienda <tonysietf@gmail.com>, "bier@ietf.org" <bier@ietf.org>
Message-ID: <34E0C9D1-534D-413D-B0EC-348DC5306A47@gmail.com>
Thread-Topic: [Bier] Last Calls for OAM Requirements, PMTUD, Performance Measurement
References: <CA+wi2hMUhK453DNc0=Q1Pr5J_MABTgiujk1Xo61SMms8BebToA@mail.gmail.com> <CA+wi2hM7zQbRco=BhbOQfBZwYwg171JrH1kYwkcHHmdmCyJXGQ@mail.gmail.com>
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Subject: Re: [Bier] Last Calls for OAM Requirements, PMTUD, Performance Measurement
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support all 3

=20

Cheers,

Jeff

=20

From: BIER <bier-bounces@ietf.org> on behalf of Tony Przygienda <tonysietf@=
gmail.com>
Date: Thursday, November 30, 2017 at 18:31
To: "bier@ietf.org" <bier@ietf.org>
Subject: Re: [Bier] Last Calls for OAM Requirements, PMTUD, Performance Mea=
surement

=20

With those LCs we are issuing a call for IPR disclosures

>From my side:=20

  * PMTUD has no further undisclosed IPR I'm aware off=20

--- tony=20

=20

On Wed, Nov 29, 2017 at 3:34 PM, Tony Przygienda <tonysietf@gmail.com> wrot=
e:

The following drafts have been stable for quite a while and are being last =
called

=C2=B7  OAM Requirements for BIER Layer: draft-ietf-bier-oam-requirements;

=C2=B7  PMTUD for BIER Layer: draft-ietf-bier-path-mtu-discovery;

=C2=B7  Performance Measurement with the Marking Method in BIER Layer: draft-ie=
tf-bier-pmmm-oam;

--- tony=20

=20

_______________________________________________ BIER mailing list BIER@ietf=
.org https://www.ietf.org/mailman/listinfo/bier=20


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--></style></head><body bgcolor=3Dwhite lang=3DEN-US link=3Dblue vlink=3Dpurple><di=
v class=3DWordSection1><p class=3DMsoNormal><span style=3D'font-size:14.0pt'>suppo=
rt all 3<o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:14.0=
pt'><o:p>&nbsp;</o:p></span></p><div><p class=3DMsoNormal><span style=3D'font-si=
ze:10.5pt;color:black'>Cheers,<o:p></o:p></span></p></div><p class=3DMsoNormal=
><span style=3D'font-size:10.5pt;color:black'>Jeff</span><span style=3D'font-siz=
e:14.0pt'><o:p></o:p></span></p><p class=3DMsoNormal><span style=3D'font-size:14=
.0pt'><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=3DMsoNormal style=3D'margin-lef=
t:.5in'><b><span style=3D'font-size:12.0pt;color:black'>From: </span></b><span=
 style=3D'font-size:12.0pt;color:black'>BIER &lt;bier-bounces@ietf.org&gt; on =
behalf of Tony Przygienda &lt;tonysietf@gmail.com&gt;<br><b>Date: </b>Thursd=
ay, November 30, 2017 at 18:31<br><b>To: </b>&quot;bier@ietf.org&quot; &lt;b=
ier@ietf.org&gt;<br><b>Subject: </b>Re: [Bier] Last Calls for OAM Requiremen=
ts, PMTUD, Performance Measurement<o:p></o:p></span></p></div><div><p class=3D=
MsoNormal style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p></div><div><div><div=
><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:0in;margin-right:0in;marg=
in-bottom:12.0pt;margin-left:.5in'>With those LCs we are issuing a call for =
IPR disclosures<o:p></o:p></p></div><p class=3DMsoNormal style=3D'margin-left:.5=
in'>From my side: <o:p></o:p></p></div><p class=3DMsoNormal style=3D'mso-margin-=
top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:.5in'>&nbsp; *=
 PMTUD has no further undisclosed IPR I'm aware off <o:p></o:p></p></div><p =
class=3DMsoNormal style=3D'margin-left:.5in'>--- tony <o:p></o:p></p></div><div>=
<p class=3DMsoNormal style=3D'margin-left:.5in'><o:p>&nbsp;</o:p></p><div><p cla=
ss=3DMsoNormal style=3D'margin-left:.5in'>On Wed, Nov 29, 2017 at 3:34 PM, Tony =
Przygienda &lt;<a href=3D"mailto:tonysietf@gmail.com" target=3D"_blank">tonysiet=
f@gmail.com</a>&gt; wrote:<o:p></o:p></p><blockquote style=3D'border:none;bord=
er-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;marg=
in-right:0in'><div><p class=3DMsoNormal style=3D'margin-left:.5in'>The following=
 drafts have been stable for quite a while and are being last called<o:p></o=
:p></p><div><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margin-bot=
tom-alt:auto;margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lfo1'><=
![if !supportLists]><span style=3D'font-size:10.0pt;font-family:Symbol'><span =
style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New Roman"'>&nbsp; =
</span></span></span><![endif]><span dir=3DLTR></span>OAM Requirements for BIE=
R Layer: draft-ietf-bier-oam-requirements;<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:1.0in;=
text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style=
=3D'font-size:10.0pt;font-family:Symbol'><span style=3D'mso-list:Ignore'>=C2=B7<span=
 style=3D'font:7.0pt "Times New Roman"'>&nbsp; </span></span></span><![endif]>=
<span dir=3DLTR></span>PMTUD for BIER Layer: draft-ietf-bier-path-mtu-discover=
y;<o:p></o:p></p><p class=3DMsoNormal style=3D'mso-margin-top-alt:auto;mso-margi=
n-bottom-alt:auto;margin-left:1.0in;text-indent:-.25in;mso-list:l0 level1 lf=
o1'><![if !supportLists]><span style=3D'font-size:10.0pt;font-family:Symbol'><=
span style=3D'mso-list:Ignore'>=C2=B7<span style=3D'font:7.0pt "Times New Roman"'>&n=
bsp; </span></span></span><![endif]><span dir=3DLTR></span>Performance Measure=
ment with the Marking Method in BIER Layer: draft-ietf-bier-pmmm-oam;<o:p></=
o:p></p><p style=3D'margin-left:.5in'>--- tony <o:p></o:p></p></div></div></bl=
ockquote></div><p class=3DMsoNormal style=3D'margin-left:.5in'><o:p>&nbsp;</o:p>=
</p></div><p class=3DMsoNormal style=3D'margin-left:.5in'>______________________=
_________________________ BIER mailing list BIER@ietf.org https://www.ietf.o=
rg/mailman/listinfo/bier <o:p></o:p></p></div></body></html>

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--94eb2c1a5de6a0d553055fc32ad5
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uploaded

https://datatracker.ietf.org/doc/minutes-100-bier/

thanks to Donald Eastlake for note taking

--- tony

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<div dir=3D"ltr"><div><div>uploaded<br></div><div><br></div><div><a href=3D=
"https://datatracker.ietf.org/doc/minutes-100-bier/">https://datatracker.ie=
tf.org/doc/minutes-100-bier/</a><br><br></div>thanks to Donald Eastlake for=
 note taking <br><br></div>--- tony <br></div>

--94eb2c1a5de6a0d553055fc32ad5--


From nobody Fri Dec  8 03:22:49 2017
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From: Senthil Dhanaraj <senthil.dhanaraj@huawei.com>
To: "bier@ietf.org" <bier@ietf.org>
Thread-Topic: Query regarding the "Lbl Range Size"  // RE: [Bier] I-D Action: draft-ietf-bier-ospf-bier-extensions-10.txt
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Subject: [Bier] Query regarding the "Lbl Range Size" // RE: I-D Action: draft-ietf-bier-ospf-bier-extensions-10.txt
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Query to Authors regarding the "Lbl Range Size" Field here ..


   The BIER MPLS Encapsulation Sub-TLV has the following format:

   0                   1                   2                   3
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |              Type             |             Length            |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |Lbl Range Size |                Label Range Base               |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |BS Len |                     Reserved                          |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

      Type: 10

      Length: 4 octets

      Label Range Size: A 1 octet field encoding the label range size of
      the label range.  It MUST be greater then 0, otherwise the
      advertising router MUST be treated as if it did not advertise a
      BIER sub-TLV.


>>>  If a router supports 256 "SET(s)", then the "Lbl Range Size" would be =
set to "255"  (Number of SET(s) minus "1")
          If a router supports only one "SET", then the "Lbl Range Size" wo=
uld be set to "0", is't it ?
          Wondering why the draft specifies that it MUST be always greater =
than 0.

Thanks
Senthil


-----Original Message-----
From: BIER [mailto:bier-bounces@ietf.org] On Behalf Of internet-drafts@ietf=
.org
Sent: 04 December 2017 15:57
To: i-d-announce@ietf.org
Cc: bier@ietf.org
Subject: [Bier] I-D Action: draft-ietf-bier-ospf-bier-extensions-10.txt


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the Bit Indexed Explicit Replication WG of the=
 IETF.

        Title           : OSPF Extensions for BIER
        Authors         : Peter Psenak
                          Nagendra Kumar
                          IJsbrand Wijnands
                          Andrew Dolganow
                          Tony Przygienda
                          Jeffrey Zhang
                          Sam Aldrin
	Filename        : draft-ietf-bier-ospf-bier-extensions-10.txt
	Pages           : 9
	Date            : 2017-12-04

Abstract:
   Bit Index Explicit Replication (BIER) is an architecture that
   provides multicast forwarding through a "BIER domain" without
   requiring intermediate routers to maintain multicast related per-flow
   state.  Neither does BIER require an explicit tree-building protocol
   for its operation.  A multicast data packet enters a BIER domain at a
   "Bit-Forwarding Ingress Router" (BFIR), and leaves the BIER domain at
   one or more "Bit-Forwarding Egress Routers" (BFERs).  The BFIR router
   adds a BIER header to the packet.  Such header contains a bit-string
   in which each bit represents exactly one BFER to forward the packet
   to.  The set of BFERs to which the multicast packet needs to be
   forwarded is expressed by the according set of bits set in BIER
   packet header.

   This document describes the OSPF protocol extension required for BIER
   with MPLS encapsulation.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-bier-ospf-bier-extensions/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-bier-ospf-bier-extensions-10
https://datatracker.ietf.org/doc/html/draft-ietf-bier-ospf-bier-extensions-=
10

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-bier-ospf-bier-extensions-10


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

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

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


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From wolfgang.braun@uni-tuebingen.de  Mon Dec 11 06:26:45 2017
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Hi,

I have answered the questions about bier-te-frr but forgot to add the list in the address field.

Best regards
Wolfgang

-------- Forwarded Message --------
Subject: Re: Fwd: [Bier] Questions about draft-eckert-bier-te-frr-02
Date: Mon, 11 Dec 2017 13:48:31 +0100
From: Wolfgang Braun <wolfgang.braun@uni-tuebingen.de>
To: gu.min1@zte.com.cn
CC: tte+ietf@cs.fau.de, Michael Menth <menth@uni-tuebingen.de>

Dear Gu,

> -------- Weitergeleitete Nachricht --------
> Betreff: 	[Bier] Questions about draft-eckert-bier-te-frr-02
> Datum: 	Mon, 11 Dec 2017 08:30:28 +0800 (CST)
> Von: 	gu.min1@zte.com.cn
> An: 	bier@ietf.org
> 
> 
> 
> Hi,
> 
> 
> I have questions about section "3.1.  FRR Key Concepts" of the draft
> "Protection Methods for BIER-TE (draft-eckert-bier-te-frr-02)".

the notation in the figure and the text are inconsistent.  We have to fix this in the next version of the draft.

I have attached a txt-file with the corrections at this mail.  You find more explanations below.
   
> In this section, The description about the failing link :
> 
> "First, we consider that the link from P towards F fails."
>
> but in the multicast tree mentioned in this section,
> 
> 1. no P and F are found.

It is wrong notated in the text.  P is BFR4 and F is BFR7.  D2 also appears in the text and it must be BFR9.

> 
> 2. there are two "p8"  (the bitposition should be unique under the same
> <SD,SI,BSL>? )
> 
> 
> Is this tree incomplete?
> 

The tree is complete but I have made some mistakes labeling the adjacencies.  You can find the correct bit positions and notations in the attached txt-file.

If there are sill questions, please feel free to ask.

Best regards
Wolfgang
-- 
Dipl.-Inform. Wolfgang Braun
University of Tuebingen
Faculty of Science
Department of Computer Science
Chair of Communication Networks
Sand 13, 72076 Tuebingen, Germany
phone: (+49)-7071/29-70509, fax: (+49)-7071/29-5220
mailto: wolfgang.braun@uni-tuebingen.de


--------------2CCC3F12D29D532CFC2081A2
Content-Type: text/plain; charset=UTF-8;
 name="FRR-key-concepts.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="FRR-key-concepts.txt"

                     BFR1-------+
                      |         |
                      |         |
       p4      p3     v p1      v p2
   BFR2<---BFR3<-----BFR4------BFR5
            |         |      p5 |
            |         |         |
         p9 |         v p6      v p8
           BFR6<-----BFR7-----BFR9
              p7   p10  p11



Path BFR1->BFR2: p1, p3, p4
Path BFR1->BFR6: p1, p6, p7
Path BFR1->BFR9: p2, p8

Failure of adjacency: p6 (BFR4->BFR7)

Two backup paths are possible:
a) BFR4->BFR3->BFR6->BFR7 (bit positions: p3, p9, p10)
   - Does not cause duplicates for this multicast tree
b) BFR4->BFR5->BFR9->BFR7 (bit positions: p5, p8, p11)
   - Causes duplicate at BFR9 because BFR1 only prunes p1,p2 from the
     bitstring and both packets arriving at BFR4 and BFR5 still contain the
     local_decap bit for BFR9.  Thus, two packets with local_decap bit of BFR9
     arrive at BFR9 when this backup path is used.

Two options exist to avoid duplicates for backup path 2.

   1.  We reset the local_decap bit for BFR9: This solution prevents the
       duplicate packet.  However, this method can lead to lost packets
       in other examples.

   2.  We use a tunnel from BFR4 to BFR7 over BFR9 to prevent BIER packet
       processing at the nodes at the backup path.


--------------2CCC3F12D29D532CFC2081A2--


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*,

Here's our first swing at the Standard Track justification draft.

Cheers,
Greg

---------- Forwarded message ----------
From: <internet-drafts@ietf.org>
Date: Thu, Dec 21, 2017 at 12:55 PM
Subject: New Version Notification for
draft-shepherd-bier-standards-track-00.txt
To: Greg Shepherd <gjshep@gmail.com>, Andrew Dolganow <
andrew.dolganow@nokia.com>



A new version of I-D, draft-shepherd-bier-standards-track-00.txt
has been successfully submitted by Greg Shepherd and posted to the
IETF repository.

Name:           draft-shepherd-bier-standards-track
Revision:       00
Title:          Justification for BIER on Standards Track
Document date:  2017-12-20
Group:          Individual Submission
Pages:          6
URL:            https://www.ietf.org/internet-drafts/draft-shepherd-bier-
standards-track-00.txt
Status:         https://datatracker.ietf.org/doc/draft-shepherd-bier-
standards-track/
Htmlized:       https://tools.ietf.org/html/draft-shepherd-bier-standards-
track-00
Htmlized:       https://datatracker.ietf.org/doc/html/draft-shepherd-bier-
standards-track-00


Abstract:
   This document is intended to provide justification for re-chartering
   the BIER Working Group as Standards Track, and to move all BIER WG
   previously published documents to Standards Track.




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

The IETF Secretariat

--94eb2c05b8ce8869290560dfeefa
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<div dir=3D"ltr">*,<div><br></div><div>Here&#39;s our first swing at the St=
andard Track justification draft.</div><div><br></div><div>Cheers,</div><di=
v>Greg</div><div><br><div class=3D"gmail_quote">---------- Forwarded messag=
e ----------<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: Thu, Dec 21, 2017 at 12:55 PM<br>Subject: New Version=
 Notification for draft-shepherd-bier-standards-track-00.txt<br>To: Greg Sh=
epherd &lt;<a href=3D"mailto:gjshep@gmail.com">gjshep@gmail.com</a>&gt;, An=
drew Dolganow &lt;<a href=3D"mailto:andrew.dolganow@nokia.com">andrew.dolga=
now@nokia.com</a>&gt;<br><br><br><br>
A new version of I-D, draft-shepherd-bier-standards-<wbr>track-00.txt<br>
has been successfully submitted by Greg Shepherd and posted to the<br>
IETF repository.<br>
<br>
Name:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0draft-shepherd-bier-standards=
-<wbr>track<br>
Revision:=C2=A0 =C2=A0 =C2=A0 =C2=A000<br>
Title:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Justification for BIER on Standard=
s Track<br>
Document date:=C2=A0 2017-12-20<br>
Group:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Individual Submission<br>
Pages:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 6<br>
URL:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"https://www.ietf.o=
rg/internet-drafts/draft-shepherd-bier-standards-track-00.txt" rel=3D"noref=
errer" target=3D"_blank">https://www.ietf.org/internet-<wbr>drafts/draft-sh=
epherd-bier-<wbr>standards-track-00.txt</a><br>
Status:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://datatracker.iet=
f.org/doc/draft-shepherd-bier-standards-track/" rel=3D"noreferrer" target=
=3D"_blank">https://datatracker.ietf.org/<wbr>doc/draft-shepherd-bier-<wbr>=
standards-track/</a><br>
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://tools.ietf.org/html/=
draft-shepherd-bier-standards-track-00" rel=3D"noreferrer" target=3D"_blank=
">https://tools.ietf.org/html/<wbr>draft-shepherd-bier-standards-<wbr>track=
-00</a><br>
Htmlized:=C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"https://datatracker.ietf.org=
/doc/html/draft-shepherd-bier-standards-track-00" rel=3D"noreferrer" target=
=3D"_blank">https://datatracker.ietf.org/<wbr>doc/html/draft-shepherd-bier-=
<wbr>standards-track-00</a><br>
<br>
<br>
Abstract:<br>
=C2=A0 =C2=A0This document is intended to provide justification for re-char=
tering<br>
=C2=A0 =C2=A0the BIER Working Group as Standards Track, and to move all BIE=
R WG<br>
=C2=A0 =C2=A0previously published documents to Standards Track.<br>
<br>
<br>
<br>
<br>
Please note that it may take a couple of minutes from the time of submissio=
n<br>
until the htmlized version and diff are available at <a href=3D"http://tool=
s.ietf.org" rel=3D"noreferrer" target=3D"_blank">tools.ietf.org</a>.<br>
<br>
The IETF Secretariat<br>
<br>
</div><br></div></div>

--94eb2c05b8ce8869290560dfeefa--

