[ixpmanager] BGP Extended Communities

[Nick Hilliard]

On 24/04/2013 15:12, Joe Wooller wrote:
> Is anyone on here using extended communities, and if so what are your policies.
> Given this seems to be the standard that most lean towards.
> 
> 	IXASN:IXASN - Send prefixes to all other route-server participants
> 	IXASN:PEERASN - Send prefix to only route-server participant with specific ASN
> 	0:PEERASN - Do not send prefix to route-server participant with specific ASN
> 	0:0 - Do not echo prefix to any other route-server participants.
> 
> I was hoping to try and adopt some sort of standard to help make it easier for international peers to jump on board if they were to build down here.
> However under juniper you can not match an extended community with 0:asnhere, or origin:0:asnhere 

this community policy filtering convention breaks when dealing with 32 bit
communities.  The only hope is to get proper 32 bit community support into
BGP (i.e. 32:32 instead of the current hacks).  This isn't even at IETF
internet draft stage.

Nick