On Sat, 2 Sep 2017 at 05:41, Randy Bush <randy@psg.com> wrote:
i have 142 largish bgp customers, a large enough number that the number of prefixes i receive from them varies annoyingly. how do i reasonably automate setting of my outbound prefix limit?
First, it seems you know the inbound so automating the outbound is simple arithmetic.
I would have said the same... i ought to know high-water marks for your inbound peer count(s), and can work out a +20% outbound...
you just assumed that the transitive closure of everybody's cones implement and propagate count. ain't gonna happen.
I am not sure what the issue here is. If I can tell my peering partner a recommended maximum prefix value for them to set on their side, surely I can configure that same value on my side as the upper outbound limit. Kind regards, Job