Re: Wanted: one more well-known BGP community

Paul Traina <pst@cisco.com> Wed, 09 August 1995 22:37 UTC

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To: Vince Fuller <vaf@valinor.barrnet.net>
Cc: bgp@ans.net
Subject: Re: Wanted: one more well-known BGP community
In-Reply-To: Your message of "Wed, 09 Aug 1995 14:46:38 PDT." <199508092145.AA43739@interlock.ans.net>
Date: Wed, 09 Aug 1995 15:26:04 -0700
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From: Paul Traina <pst@cisco.com>

  From: Vince Fuller <vaf@valinor.barrnet.net>
  Subject: Wanted: one more well-known BGP community
  
  Why can't "no-advertise" be used for this? Because it doesn't really make
  sense to set "no-advertise" in an outgoing update. Cisco's "route-map"
  facility, for example, can't do this because when it is used to set
  "no-advertise" in the BGP routing table, the route is naturally not
  advertised to any neighbors. The "no-advertise" community is something
  that only really makes sense when applied to incoming updates (in fact,
  one uses "no-propagate" by configuring a router to set "no-advertise"
  on any routes received with "no-propagate").

No advertise is applied on the way out, therefore no-advertise
  
  The "no-propagate" community requires no special semantics and no changes to
  BGP implementations, it just requires a community number to be assigned so
  that the keyword will (hopefully) be added to routers whose parsers recognize
  the names of well-known communities.
  
  Comments? Thoughts?

Yes, this is an inappropriate forum for discussing feature requests with
cisco.  Please use cs-iprouting-bgp@cisco.com unless you're talking about
a standardized IETF protocol, which communities are not.