Re: "Tactical" /24 announcements

Hey Jakob, Is there documentation for this somewhere? Are you saying that the IOS-XR host will connect to some (configured?) server to expand the as-set, and at what time? Commit time? Once every N? On Sun, 15 Aug 2021 at 04:50, Jakob Heitz (jheitz) via NANOG wrote: > > Ytti, > > We have introdu

RE:"Tactical" /24 announcements

Ytti, We have introduced the scalable as-set into the XR route policy language. as-path-set does not scale well with 1000's of ASNs. Now, you don't need to expand AS-SET into prefix-set, just enter it directly. Example: as-set test 2914, 3356, end-set ! route-policy sample if as-path origina

Re: "Tactical" /24 announcements

Every major vendor at some point in time has implemented RIB->FIB(really BGP->RIB->FIB) filtering, on Redback/Ericsson routers we did around 2013/2014(@Jakob Heitz;-)) Route compression is a more complex topic, it is not difficult to aggregate, it is to effectively disaggregate on changes. MS re

Re: "Tactical" /24 announcements

Baldur Norddahl wrote: For all the stub networks out there we should be able to aggressively filter routes without much harm. Stub networks, which, by definition, do not have transit traffic over them, can not filter routes for transit traffic at all. But, if both of two stub networks with ad

Re: "Tactical" /24 announcements

Tom Beecher wrote: 6.1.3 . at the time of writing of this document, IPv4 prefixes longer than /24 and IPv6 prefixes longer than /48 are generally neither announced nor accepted in the Internet That's why, unlike IPv4, IPv6 is hopele