Looking glass

Read-only queries against BIRD on argonath.

Query Route for Route detail Protocol Traceroute to Blackholed now (RFC 7999) Graceful shutdown (RFC 8326) Target Run

Queries run on argonath and are restricted to show route, show protocols and traceroute. Session state is on the session overview. Route detail decodes our own origin communities under each route.

Two well-known communities are acted on rather than merely carried. Blackholed now lists what a neighbour has asked us to discard with 65535:666 (RFC 7999); those routes are installed with no next hop, so the traffic is dropped here. Graceful shutdown lists what carries 65535:0 (RFC 8326), which we honour by setting local_pref to 0 so any other path wins while that session is on its way down. A blackhole is only accepted if the prefix is RPKI-valid at the length announced.