Hi Tim,

Thanks for your email. Yes, you can map a BGP speaker to a flow exporter
via bgp_agent_map; since you speak of route servers, that is plural,
would they all return an omogeneous view in term of routes and more of
them are in place for redundancy? Or routes would be different at each
of them and you would be looking for some best-path computation being
done in pmacct (which is not the case today)?


On Thu, Feb 01, 2018 at 02:45:16PM +1100, Tim Raphael wrote:
> Hi All!
> I work for an IXP and we’re attempting to collect flows across our fabric 
> however I’m not sure how to address our architecture.
> We run L2 PE devices that don’t interact with L3 at all as far as peers and 
> peering traffic are concerned - they’re just L2 boxes.
> Peers connect with BGP to a pair of route servers for BGP.
> Now, I understand the pmacct can do prefix lookup in BGP but I’m under the 
> assumption that the sFlow peer_src_ip has to match the BGP peer source 
> address to a flow to be decorated with BGP specific information. Given our 
> flows will be coming from our PEs and BGP from our route servers - is this 
> possible in pmacct?
> Cheers!
> - Tim
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