Upstream BGP community support

Jack Bates jbates at
Mon Nov 2 19:38:00 UTC 2009

Joel Jaeggli wrote:
> A standardized set means it can be cooked into documentation, training,
> and potentially even products.

Communities (except the standardized well known ones) are extremely 
diverse. For those that support even more granular traffic engineering 
by limiting which of their peers your routes might be transiting, I 
believe there are 2 distinct methods of using communities.

The nature of communities, and the different levels of support and 
traffic engineering capabilities makes it difficult for it to be 
standardized. It would take even longer for anyone to adopt such a 
standard due to the sheer volume of routers and customers who would have 
to adapt from long term established policies.

Jack Bates

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