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From: Jeff Tantsura <jefftant.ietf@gmail.com>
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Date: Sun, 22 Aug 2021 14:13:17 -0700
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References: <20210821162840.GF19054@pfrc.org>
Cc: Enke Chen <enchen@paloaltonetworks.com>, idr@ietf.org,
 draft-chen-bgp-redist@ietf.org
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To: Jeffrey Haas <jhaas@pfrc.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/idr/NxtvxNTakt0QaCBRukW-cYcgXMA>
Subject: Re: [Idr] draft-chen-bgp-redist - A Juniper Perspective -> moving
 to RFC5004 discussion
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Jeff

Thanks again!
In the draft-lapukhov-bgp-ecmp-considerations we have touched upon RFC5004 a=
nd some implications in ECMP fabrics, in the future versions we will expand t=
he topic and issues associated (this is quite focused on DC use cases though=
 - I believe is summary - we observe > 50% BGP deployments).
I=E2=80=99d encourage the vendors among us to share some data(p2p is ok) wrt=
 implementations, potential interactions with router-id tie-breaking and if c=
ould be shared publicly - implications wrt HW resources (ECMP groups and sim=
ilar).


Cheers,
Jeff

> On Aug 21, 2021, at 09:28, Jeffrey Haas <jhaas@pfrc.org> wrote:
>=20
> =EF=BB=BFJeff,
>=20
>> On Fri, Aug 20, 2021 at 03:59:38PM -0700, Jeff Tantsura wrote:
>> Perhaps RFC5004/router-id (in densely meshed eBGP topologies) behavior  d=
eserves a good discussion as well.
>=20
> A topic I've discussed Sue in the past is we're in need of some documents
> discussing some BGP protocol intrinsics that really aren't well documented=
.
>=20
> The one you mention is an example of "your domain really needs to implemen=
t
> consistent route selection procedures".
>=20
> This is also a reminder that I have errata for RFC 5004 to file and keep
> forgetting to do so.
>=20
> -- Jeff

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Jeff<div><br></div><div>Thanks again!</div>=
<div>In the&nbsp;<span style=3D"font-size: 1em; font-weight: bold; white-spa=
ce: pre; caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); -webkit-text-size-a=
djust: auto;">draft-lapukhov-bgp-ecmp-considerations </span>we have touched u=
pon RFC5004 and some implications in ECMP fabrics, in the future versions we=
 will expand the topic and issues associated (this is quite focused on DC us=
e cases though - I believe is summary - we observe &gt; 50% BGP deployments)=
.</div><div>I=E2=80=99d encourage the vendors among us to share some data(p2=
p is ok) wrt implementations, potential interactions with router-id tie-brea=
king and if could be shared publicly - implications wrt HW resources (ECMP g=
roups and similar).</div><div><br></div><div><br></div><div><div dir=3D"ltr"=
>Cheers,<br><div>Jeff</div></div><div dir=3D"ltr"><br><blockquote type=3D"ci=
te">On Aug 21, 2021, at 09:28, Jeffrey Haas &lt;jhaas@pfrc.org&gt; wrote:<br=
><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF=
<span>Jeff,</span><br><span></span><br><span>On Fri, Aug 20, 2021 at 03:59:3=
8PM -0700, Jeff Tantsura wrote:</span><br><blockquote type=3D"cite"><span>Pe=
rhaps RFC5004/router-id (in densely meshed eBGP topologies) behavior &nbsp;d=
eserves a good discussion as well.</span><br></blockquote><span></span><br><=
span>A topic I've discussed Sue in the past is we're in need of some documen=
ts</span><br><span>discussing some BGP protocol intrinsics that really aren'=
t well documented.</span><br><span></span><br><span>The one you mention is a=
n example of "your domain really needs to implement</span><br><span>consiste=
nt route selection procedures".</span><br><span></span><br><span>This is als=
o a reminder that I have errata for RFC 5004 to file and keep</span><br><spa=
n>forgetting to do so.</span><br><span></span><br><span>-- Jeff</span><br></=
div></blockquote></div></body></html>=

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