On Tue, Jun 30, 2015 at 10:22:38PM +0900, Matsuzaki Yoshinobu wrote:
Randy Bush <randy@psg.com> wrote
A friend in AS58587 confirmed that this was caused by a configuration error - it seems like related to redistribution, and they already fixed that.
7007 all over again. do not redistribute bgp into igp. do not redistribute igp into bgp.
I also suggested them to implement BGP community based route filtering in their outbound policy. Any other suggestions or thoughts to prevent such incidents in general?
In addition to the BGP community scheme, outbound as-path filters could help. Most network's list of transit providers is fairly static, it would be easiy with as-path filters to prevent announcing upstream routes to other upstreams or peering partners. Kind regards, Job