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

Randy Bush <randy@psg.com> Tue, 14 June 2016 10:29 UTC

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Date: Tue, 14 Jun 2016 19:29:31 +0900
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From: Randy Bush <randy@psg.com>
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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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> Randy Bush wrote:
>> i think what might be said is "creating an undesirably longer AS_PATH"
>> and thus biasing receivers against using the exchange.

and i recanted as it did not answer kühlewind's point

> The wording has been updated as follows:
> github.com/fooelisa/draft-jasinska-ix-bgp-route-server/commit/686ed8a

and therefore i do not that that does.

Mirja Kuehlewind wrote:
> Quick question: Why is the following statement a SHOULD and not a MUST:
> "the route server SHOULD NOT prepend its own AS number to the AS_PATH
> segment nor modify the AS_PATH segment in any other way. "

i suggested an example; a corner case.  but corner cases are typical for
a MUST being a SHOULD

> we're discussing the opposite, why one might want the RS to have an AS
> in my path.  well, to me it would be because i have one path directly
> from peer and one via the RS.  i would prefer the former.

randy