On Thu, Nov 17, 2011 at 3:37 AM, iLya <i...@nobulus.com> wrote:
> I've read the draft but couldn't attend the session due to clash in
> schedule.
>
> One point which is currently missing in the draft and which I consider very
> important is effect of transition to "jumbo" on BGP. Many BGP
> implementations today group updates to similar peers and format them only
> once then replicate to multiple peers. Formatting is arguably more
> resource-consuming compare to replication. When MTU is the same for all IXP
> customers, then most of UPDATE messages will be formatted only once. During
> transition period there will be peers with different MTU, and depending on
> BGP implementation more than one formatting will be required. It would be
> nice if the draft could be updated to address this subject.

I had heard from John Scudder (and Dave Ward actually) at some point
in the near past that essentially the idea of 'peer-groups' is just
syntactic sugar at this point in time. There is some attempt to keep
like-peers together in update groups, but over time drift in state
happens and peers are separated from the herd.

In the end, this isn't super important in at least 2 bgp
implementations in the field today...

-chris

>
> Kind regards,
> iLya
>
> --------------------------------------------------
> From: "Christopher Morrow" <christopher.mor...@gmail.com>
> Sent: Thursday, November 17, 2011 9:09 AM
> To: <grow-cha...@tools.ietf.org>; <grow@ietf.org>; "Martin J. Levy"
> <mar...@he.net>
> Subject: [GROW] ixp jumbo frames doc
>
>> We had a bit of a lively discussion in the meeting today about:
>>  <http://tools.ietf.org/html/draft-mlevy-ixp-jumboframes-00>
>>
>> Some of the topics covered were:
>>  o Is there a problem with CRC problems with 9k ?
>>  o is this something that the IEEE reigns supreme on?
>>  o should there be other methods of deployment?
>>  o is this a BCP instead of Informational doc?
>>  o should this be adopted for WG work?
>>
>> We'll pass along a separate call for adoption as well, but keep these
>> points in mind (and hopefully let's chat some about these as well)
>>
>> -chris
>> (co-chair)
>> _______________________________________________
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>> GROW@ietf.org
>> https://www.ietf.org/mailman/listinfo/grow
>>
>>
>
>
>
>
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