nanog mailing list archives
Re: Global BGP community values?
From: "Alex P. Rudnev" <alex () Relcom EU net>
Date: Tue, 5 Oct 1999 13:31:15 +0400 (MSD)
From mthe side of PRAGMATIC, such communities should be very usefull if 50
- 70 % of the big ISP follow them. It's possible only if this can be realised by existing control schemas (such as route-maps in CISCO), and should be easily if router vendors (just the CISCO again -:)) incorporate it as the embedded rules (just as NO_EXPORT this days - you can realise this behaviour by route-map, but usially you use embedded rules). It's just this year when most big ISP began to use such communities inside their own networks (or may be - 2 years: TELIA - this year; UUnet - last year; MCI - a few years; most Russion ISP, for example - 2 pr 3 years). But until now it is LOCAL communities - you can't decrease localpref GLOBALLY; and it caused the trigger effect in some cases. The first step should be some _VERY SIMPLE_ draft proposing new GLOBAL communities. On Tue, 5 Oct 1999, Peter Galbavy wrote:
Date: Tue, 5 Oct 1999 10:15:06 +0100 From: Peter Galbavy <Peter.Galbavy () knowledge com> To: Hank Nussbacher <hank () ibm net il> Cc: Vadim Antonov <avg () kotovnik com>, nanog () merit edu Subject: Re: Global BGP community values? On Tue, Oct 05, 1999 at 10:32:02AM +0200, Hank Nussbacher wrote:I agree but then why didn't your draft make it to BCP or experimental RFC status? Perhaps if we do the community thing and demonstrate that there is a real world benefit, then we can revive your RFC draft and integrate the knowledge we gain into something that gets accepted and implemented a bit later on.Without wanting to enter into the pleasant politics that surround "correctness" versus "pragmatism", I woule like to fall down on the side of pragmatism in this case. It would take very little effort and no protocol change to document a proposal with some standard convenience values that can be seen as an informally agreed set of global community values. Apart from an "always prefer this route if found" set of known values, what others could be useful ? I know that some networks (EBONE from memory) uses communities to stop exports at borders to certain networks. Would there be any value is have a standardised way of saying things like "don't export outside country/continent please" - the request being understtod to be a courtesy request rather than a demand ? Regards, -- Peter Galbavy Knowledge Matters Ltd http://www.knowledge.com/
Aleksei Roudnev, Network Operations Center, Relcom, Moscow (+7 095) 194-19-95 (Network Operations Center Hot Line),(+7 095) 230-41-41, N 13729 (pager) (+7 095) 196-72-12 (Support), (+7 095) 194-33-28 (Fax)
Current thread:
- Global BGP community values? Hank Nussbacher (Oct 04)
- Re: Global BGP community values? Alex P. Rudnev (Oct 05)
- <Possible follow-ups>
- Re: Global BGP community values? Vadim Antonov (Oct 04)
- Re: Global BGP community values? Hank Nussbacher (Oct 05)
- Re: Global BGP community values? Alex P. Rudnev (Oct 05)
- Re: Global BGP community values? Hank Nussbacher (Oct 05)
- Re: Global BGP community values? Vadim Antonov (Oct 05)
- Re: Global BGP community values? Hank Nussbacher (Oct 05)
- Re: Global BGP community values? Peter Galbavy (Oct 05)
- Re: Global BGP community values? Alex P. Rudnev (Oct 05)
- Re: Global BGP community values? Hank Nussbacher (Oct 05)
- Re: Global BGP community values? Alex Bligh (Oct 05)
- Re: Global BGP community values? Randy Bush (Oct 05)
- Re: Global BGP community values? Peter Galbavy (Oct 05)
- Re: Global BGP community values? Jeff Mcadams (Oct 05)
- Re: Global BGP community values? Alex P. Rudnev (Oct 05)
- Re: Global BGP community values? Alex Bligh (Oct 05)