Upstream BGP community support

jim deleskie deleskie at
Sun Nov 1 00:30:38 UTC 2009

Here is the problem as I see it.  Sure some % fo the people using BGP
are bright nuff to use some upstreams communities, but sadly many are
not.  So this ends up breaking one or more networks, who in turn twist
more dials causing other changes.. rinse, wash and repeat.  But like
Randy said who am I to stop anyone from playing... just means those of
us with clue will be able to continue to earn a pay check for a very
long time still :)


On Sat, Oct 31, 2009 at 9:25 PM, Randy Bush <randy at> wrote:
> while i can understand folk's wanting to signal upstream using
> communities, and i know it's all the rage.  one issue needs to be
> raised.
> bgp is a brilliant information hiding protocol.  policy is horribly
> opaque.  complexity abounds.  and it has unfun consequences, e.g. see
> tim on wedgies etc.
> and this just adds to the complexity and opacity.
> so i ain't sayin' don't do it.  after all, who would deny you the
> ability to show off your bgp macho?
> just try to minimize its use to only when you *really* need it.
> randy

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