Re: [Idr] Mirja Kühlewind's No Objection on draft-ietf-idr-ix-bgp-route-server-11: (with COMMENT)

Nick Hilliard <nick@foobar.org> Fri, 24 June 2016 19:41 UTC

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Date: Fri, 24 Jun 2016 20:41:29 +0100
From: Nick Hilliard <nick@foobar.org>
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To: Jeffrey Haas <jhaas@pfrc.org>
References: <0DE7AB8E-4CFD-44C5-898F-47F48B542599@kuehlewind.net> <575F2704.3050509@foobar.org> <m237ogo5w1.wl%randy@psg.com> <CAL9jLaaCa9aUOw0HUfyrt05GTYL+yGZum1M=3_4r_E0nx4PqJg@mail.gmail.com> <A65A6088-433D-4200-B098-B2FFEB0A45CD@psg.com> <CAL9jLabgF=h9wSg4GoDoJiT76HcKK2DhpJv=ZxLws7LSs8RN3g@mail.gmail.com> <575FD94E.8030606@foobar.org> <m2inxckqr8.wl%randy@psg.com> <575FF3B9.3080501@foobar.org> <m2ziqnk8b1.wl%randy@psg.com> <20160620131112.GE2950@pfrc.org>
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Subject: Re: [Idr] =?iso-8859-1?q?Mirja_K=FChlewind=27s_No_Objection_on_draft-?= =?iso-8859-1?q?ietf-idr-ix-bgp-route-server-11=3A_=28with_COMMENT=29?=
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Jeffrey Haas wrote:
> If the intent of the text in the current internet-draft is to leave wiggle
> room for a device operating as a RS to also act as a standard BGP speaker
> without RS functionality, I think that's unnecessary.

the intent is to acknowledge that there are some bgp stacks which cannot
handle leftmost as != peer as when acting as an rs client. Mostly these
stacks are legacy, but there are still some bgp implementations which
don't support this feature on the client side, even though the client
side part is mandated further down the paragraph.

If the SHOULD is changed to MUST, then the IXP operator will not be able
to provide RS service to clients like this.  This is not a helpful thing
to do from a operational point of view.

Nick