Re: [Idr] BGP Attribute for Large communities (Attribute 30) was squatted on - Let's get a new attribute number (1 week WG call (10/18 to 10/25)
Christopher Morrow <morrowc.lists@gmail.com> Wed, 26 October 2016 13:38 UTC
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From: Christopher Morrow <morrowc.lists@gmail.com>
Date: Wed, 26 Oct 2016 09:38:35 -0400
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To: "Jakob Heitz (jheitz)" <jheitz@cisco.com>
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Cc: "idr@ietf.org" <idr@ietf.org>, Susan Hares <shares@ndzh.com>
Subject: Re: [Idr] BGP Attribute for Large communities (Attribute 30) was squatted on - Let's get a new attribute number (1 week WG call (10/18 to 10/25)
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On Wed, Oct 26, 2016 at 1:51 AM, Jakob Heitz (jheitz) <jheitz@cisco.com> wrote: > Because then we wouldn't own up to it and innocents would suffer. > I totally agree that owning up is good here. I imagine that when other squatted values are discovered either in the field or in tests the same: "oops!" email/etc will happen... but I don't want us to end up just excluding forever the squatted attributes/value/numbers, that'll be super painful in very short order. > We would hope we could fix as much of it as possible and hope the rest > wouldn't notice. > Actually, the intended purpose of the NXOS line is for the data center, > not the Internet and we can very likely fix all of the deployed ones. > However, users have a right to deploy them wherever they want without > notifying us and they have the right not to apply patches, so I chose to > own up to the problem. > yup, I think it's nice to see folk stand up and say: "DOH! we screwed up, sorry! we're now making our best effort to fix this, too." thanks! > Honest, we didn't mean it. Sorry. > > Thanks, > Jakob. > > > On Oct 25, 2016, at 6:50 PM, Christopher Morrow <morrowc.lists@gmail.com> > wrote: > > So, what's the downside to having IANA pick the next available (from the > current list, prior to the 2 squatting incidents) value in cases like this? > > I think it's: "Some routers somewhere do bad things" > (or sometimes cause other remote people to do 'bad things' .. where > sometimes that other person is 'me') > > and when that happens: "some people quickly upgrade code to avoid the 'bad > things'" > (presuming that the code is available, I mean... and I do hope that > vendors, all of them, are telling their DE folk: "Hey, don't do this, it's > super painful...srsly!") > > Is that about it? Why don't we just go back to assigning the next > available and deal with the problem(s) as they arise? > > -chris > > On Tue, Oct 25, 2016 at 6:27 PM, Jakob Heitz (jheitz) <jheitz@cisco.com> > wrote: > >> I have discovered that Cisco has used BGP attribute code 31 >> >> for an internal experiment in certain NXOS routers, >> >> but unfortunately some of the code leaked into production. >> >> The code does not send the attribute, >> >> but it receives it incorrectly. We are creating patches for the >> >> faulty code, but cannot guarantee that all affected routers will >> >> be patched. Consequently, we request deprecation of attribute >> >> code 31 as well. >> >> >> >> I apologize on behalf of Cisco for the oversight. >> >> >> >> Thanks, >> >> Jakob. >> >> >> >> *From:* Idr [mailto:idr-bounces@ietf.org] *On Behalf Of *Susan Hares >> *Sent:* Monday, October 24, 2016 5:19 AM >> *To:* idr@ietf.org >> *Subject:* [Idr] BGP Attribute for Large communities (Attribute 30) was >> squatted on - Let's get a new attribute number (1 week WG call (10/18 to >> 10/25) >> >> >> >> IDR Working group: >> >> >> >> Thank you for your input on the question of whether Large communities >> should be reassigned another attribute number due to Huawei squatting on >> attribute 30. The WG consensus is that the IDR WG wishes to have IANA >> deprecate attribute 30, and reassign large communities another attribute >> number for its early allocation. >> >> >> >> Alvaro should request a new attribute number for wide communities. >> >> >> >> If wide communities implementers request an early allocation, the WG >> consensus was unclear. Therefore, the code point of 129 is deprecated for >> now. The full discussion on this point is at: >> >> >> >> https://www.ietf.org/mail-archive/web/idr/current/msg16556.html >> >> >> >> The following other attributes were seen in the wild with the comments we >> saw: >> >> >> >> # BGP function Reference >> >> ---- ----------------------------------------------- --------------- >> >> 20 Connector Attribute (deprecated) [RFC6037] >> >> 21 AS_PATHLIMIT (deprecated) [draft-ietf-idr-as-pathlimit, >> unknown] >> >> 30 (deprecated) [variant of >> draft-ietf-tunnel-encaps, Huawei router] >> >> 129 (deprecated) >> [draft-ietf-idr-wide-bgp-communities, Huawei router] >> >> >> >> Attribute AS Attribute Observed >> >> ----------- -------------------------------- >> >> 20 AS 22742 (Peter Hessler) >> >> 21 AS 14706, AS 11720, AS 22490 >> >> https://www.ietf.org/mail-archive/web/idr/c >> urrent/msg16583.html >> >> >> >> 30 - in trials reported by Job >> >> 129 - self-reported by Huawei >> >> >> >> Sue Hares >> >> _______________________________________________ >> Idr mailing list >> Idr@ietf.org >> https://www.ietf.org/mailman/listinfo/idr >> >> >
- [Idr] BGP Attribute for Large communities (Attrib… Susan Hares
- Re: [Idr] BGP Attribute for Large communities (At… Jeffrey Haas
- Re: [Idr] BGP Attribute for Large communities (At… Job Snijders
- Re: [Idr] BGP Attribute for Large communities (At… Job Snijders
- Re: [Idr] BGP Attribute for Large communities (At… Jeffrey Haas
- Re: [Idr] BGP Attribute for Large communities (At… bruno.decraene
- Re: [Idr] BGP Attribute for Large communities (At… Michael H Lambert
- Re: [Idr] BGP Attribute for Large communities (At… Jared Mauch
- Re: [Idr] BGP Attribute for Large communities (At… John G. Scudder
- Re: [Idr] BGP Attribute for Large communities (At… Job Snijders
- Re: [Idr] BGP Attribute for Large communities (At… Kristian Larsson
- Re: [Idr] BGP Attribute for Large communities (At… Dickinson, Ian
- Re: [Idr] BGP Attribute for Large communities (At… Julian Seifert
- Re: [Idr] BGP Attribute for Large communities (At… Peter Hessler
- Re: [Idr] BGP Attribute for Large communities (At… Nick Hilliard
- Re: [Idr] BGP Attribute for Large communities (At… Jeffrey Haas
- Re: [Idr] BGP Attribute for Large communities (At… John G. Scudder
- [Idr] Early allocation for wide communities [was:… John G. Scudder
- Re: [Idr] BGP Attribute for Large communities (At… Susan Hares
- [Idr] Unknown Attributes seen in the wild Peter Hessler
- Re: [Idr] BGP Attribute for Large communities (At… Susan Hares
- Re: [Idr] BGP Attribute for Large communities (At… Wesley George
- Re: [Idr] Early allocation for wide communities [… Susan Hares
- Re: [Idr] Early allocation for wide communities [… Susan Hares
- Re: [Idr] Unknown Attributes seen in the wild Susan Hares
- Re: [Idr] Unknown Attributes seen in the wild Jared Mauch
- Re: [Idr] Unknown Attributes seen in the wild 'Peter Hessler'
- Re: [Idr] BGP Attribute for Large communities (At… Job Snijders
- Re: [Idr] Early allocation for wide communities [… Job Snijders
- Re: [Idr] BGP Attribute for Large communities (At… Robert Raszuk
- Re: [Idr] Unknown Attributes seen in the wild Susan Hares
- Re: [Idr] Early allocation for wide communities [… Jakob Heitz (jheitz)
- Re: [Idr] Early allocation for wide communities [… Jeffrey Haas
- Re: [Idr] Early allocation for wide communities [… Job Snijders
- Re: [Idr] BGP Attribute for Large communities (At… Jeffrey Haas
- Re: [Idr] BGP Attribute for Large communities (At… Robert Raszuk
- Re: [Idr] BGP Attribute for Large communities (At… Susan Hares
- Re: [Idr] BGP Attribute for Large communities (At… Susan Hares
- Re: [Idr] BGP Attribute for Large communities (At… marco
- Re: [Idr] BGP Attribute for Large communities (At… marco
- Re: [Idr] BGP Attribute for Large communities (At… Geoff Huston
- Re: [Idr] BGP Attribute for Large communities (At… t.petch
- Re: [Idr] BGP Attribute for Large communities (At… John G. Scudder
- Re: [Idr] Unknown Attributes seen in the wild Paul Jakma
- [Idr] BGP Attribute for Large communities (Attrib… Susan Hares
- Re: [Idr] BGP Attribute for Large communities (At… Alvaro Retana (aretana)
- Re: [Idr] BGP Attribute for Large communities (At… Susan Hares
- Re: [Idr] BGP Attribute for Large communities (At… Jakob Heitz (jheitz)
- Re: [Idr] BGP Attribute for Large communities (At… Christopher Morrow
- Re: [Idr] BGP Attribute for Large communities (At… Mikael Abrahamsson
- Re: [Idr] BGP Attribute for Large communities (At… Christopher Morrow
- Re: [Idr] BGP Attribute for Large communities (At… Randy Bush
- Re: [Idr] BGP Attribute for Large communities (At… Christopher Morrow
- Re: [Idr] BGP Attribute for Large communities (At… Jakob Heitz (jheitz)
- Re: [Idr] BGP Attribute for Large communities (At… Brian Dickson
- Re: [Idr] BGP Attribute for Large communities (At… Christopher Morrow
- Re: [Idr] BGP Attribute for Large communities (At… heasley
- Re: [Idr] BGP Attribute for Large communities (At… Jakob Heitz (jheitz)
- Re: [Idr] BGP Attribute for Large communities (At… Job Snijders
- Re: [Idr] BGP Attribute for Large communities (At… heasley
- Re: [Idr] BGP Attribute for Large communities (At… marco
- Re: [Idr] BGP Attribute for Large communities (At… Sander Steffann
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Job Snijders
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Mikael Abrahamsson
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Sander Steffann
- Re: [Idr] Squatters (Was: BGP Attribute for Large… marco
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Job Snijders
- Re: [Idr] Squatters (Was: BGP Attribute for Large… t.petch
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Acee Lindem (acee)
- Re: [Idr] Squatters (Was: BGP Attribute for Large… marco
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Brian Dickson
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Job Snijders
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Randy Bush
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Job Snijders
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Thomas Mangin
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Mikael Abrahamsson
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Job Snijders
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Job Snijders
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Nick Hilliard
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Jeffrey Haas
- Re: [Idr] Squatters (Was: BGP Attribute for Large… John G. Scudder
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Job Snijders
- Re: [Idr] Squatters (Was: BGP Attribute for Large… John G. Scudder
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Thomas Mangin
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Jakob Heitz (jheitz)
- Re: [Idr] Squatters (Was: BGP Attribute for Large… heasley
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Brian Dickson
- Re: [Idr] Squatters (Was: BGP Attribute for Large… Jakob Heitz (jheitz)
- Re: [Idr] Squatters (Was: BGP Attribute for Large… marco
- Re: [Idr] Unknown Attributes seen in the wild Colin Petrie
- Re: [Idr] Unknown Attributes seen in the wild Robert Raszuk
- Re: [Idr] Unknown Attributes seen in the wild Job Snijders
- Re: [Idr] Unknown Attributes seen in the wild Robert Raszuk
- Re: [Idr] Unknown Attributes seen in the wild Colin Petrie
- Re: [Idr] Unknown Attributes seen in the wild Jakob Heitz (jheitz)
- Re: [Idr] Unknown Attributes seen in the wild Robert Raszuk
- Re: [Idr] Unknown Attributes seen in the wild Jakob Heitz (jheitz)
- Re: [Idr] Unknown Attributes seen in the wild Robert Raszuk
- Re: [Idr] Unknown Attributes seen in the wild Jakob Heitz (jheitz)
- Re: [Idr] Unknown Attributes seen in the wild Jakob Heitz (jheitz)
- Re: [Idr] BGP Attribute for Large communities (At… Zhuangshunwan