All,

I understand most of the bgp communities like no-advertise, no-export, etc., but our provider had us add a community full of numbers to workaround another provider advertising our address space. What do these numbers do exactly?

It's something like:

route-map set-community permit 10

match ip address 5

set community 528739922

I can only assume that they're putting a priority on this community in a route-map on their side and then making the other providers advertisement and lower priority. This was a cutover from a legacy system to a newer system with the legacy system let unmodified. It screwed up our routing last night, and it seems like this is what they did to fix it. I wasn't involved in this one, but I'm curious as to what the above route-map does.

Thanks,

John