nanog mailing list archives
RE: bgp update destroying transit on redback routers ?
From: Jeff Tantsura <jeff.tantsura () ericsson com>
Date: Thu, 1 Dec 2011 16:56:43 -0500
Hi, Let me take it over from now on, I'm the IP Routing/MPLS Product Manager at Ericsson responsible for all routing protocols. There's nothing wrong in checking ASN in AGGREGATOR, we don't really want see ASN 0 anywhere, that's how draft-wkumari-idr-as0 (draft-ietf-idr-as0-00) came into the worlds. To my knowledge - the only vendor which allows changing ASN in AGGREGATOR is Juniper, see "no-aggregator-id", in the past I've tried to talk to Yakov about it, without any results though. So for those who have it configured - please rethink whether you really need it. As for SEOS - understanding that this badly affects our customers and not having draft-ietf-idr-error-handling fully implemented yet, we will temporarily disable this check in our code. Patch will be made available. Please contact me for any further clarifications. Regards, Jeff P.S. Warren has recently included AGGREGATOR in the draft, please see 2. Behavior This document specifies that a BGP speaker MUST NOT originate or propagate a route with an AS number of zero. If a BGP speaker receives a route which has an AS number of zero in the AS_PATH (or AS4_PATH) attribute, it SHOULD be logged and treated as a WITHDRAW. This same behavior applies to routes containing zero as the Aggregator or AS4 Aggregator.
Current thread:
- Re: bgp update destroying transit on redback routers ?, (continued)
- Re: bgp update destroying transit on redback routers ? Igor Ybema (Dec 01)
- Re: bgp update destroying transit on redback routers ? Christopher Morrow (Dec 01)
- Re: bgp update destroying transit on redback routers ? Igor Ybema (Dec 01)
- Re: bgp update destroying transit on redback routers ? Christopher Morrow (Dec 01)
- Re: bgp update destroying transit on redback routers ? Warren Kumari (Dec 01)
- RE: bgp update destroying transit on redback routers ? Jeff Tantsura (Dec 01)
- Re: bgp update destroying transit on redback routers ? Rob Shakir (Dec 01)
- Re: bgp update destroying transit on redback routers ? Christopher Morrow (Dec 01)
- Re: bgp update destroying transit on redback routers ? Randy Bush (Dec 02)
- Re: bgp update destroying transit on redback routers ? Igor Ybema (Dec 01)
- Re: bgp update destroying transit on redback routers ? Igor Ybema (Dec 01)
- draft-ietf-idr-as0-00 (bgp update destroying transit on redback routers ?) Daniel Ginsburg (Dec 02)
- RE: draft-ietf-idr-as0-00 (bgp update destroying transit on redback routers ?) Jeff Tantsura (Dec 03)
- Re: [Idr] draft-ietf-idr-as0-00 (bgp update destroying transit on redback routers ?) Brian Dickson (Dec 03)
- Re: bgp update destroying transit on redback routers ? Alexandre Snarskii (Dec 02)
- Re: bgp update destroying transit on redback routers ? Christopher Morrow (Dec 02)
- RE: bgp update destroying transit on redback routers ? Jeff Tantsura (Dec 02)
- Re: bgp update destroying transit on redback routers ? Olivier Benghozi (Dec 22)
- RE: bgp update destroying transit on redback routers ? Jeff Tantsura (Dec 22)