Hi all, Reudiger Volk mentioned something interesting at the microphone yesterday about getting more visiblity into BGP UPDATES that are rejected/dropped somewhere in the policy chain transitioning from Adj-RIB-In to Loc-RIB.
To make a crude route-map example: ip prefix-list allow-ebgp-in permit 192.0.2.0/24 ! route-map ebgp-in permit 10 match ip address prefix-list allow-ebgp-in ! route-map ebgp-in deny 20 bmp-log-code 21438 It would be great to see what UPDATEs get dropped in "route-map ebgp-in deny 20". It would perhaps be quite useful if we can get to the point where you can even attach custom policy-exit codes to the "Dropped Updates" send in this new BMP feed. I can see how this makes operational life easier. RFC 4271 Section 9.1: "The Decision Process selects routes for subsequent advertisement by applying the policies in the local Policy Information Base (PIB) to the routes stored in its Adj-RIBs-In. The output of the Decision Process is the set of routes that will be advertised to peers; the selected routes will be stored in the local speaker's Adj-RIBs-Out, according to policy." Perhaps a series of BMP "PIB" drafts are in order? Is this worthy of a new BMP draft? Are there volunteers? Kind regards, Job _______________________________________________ GROW mailing list GROW@ietf.org https://www.ietf.org/mailman/listinfo/grow