> Mark Tinka > Sent: Tuesday, April 30, 2019 1:49 PM > > > On 29/Apr/19 15:32, [email protected] wrote: > > > First of all hierarchical MPLS is not for everyone so the obvious > > question is do you need to keep the domains separate due to scalability > reasons? > > If not then rather than investing time into "Seamless MPLS" project > > invest the time into migrating onto common IGP which will result in a > > much simpler network (IGPs can support huge number of prefixes > > nowadays and ISIS/OSPF can compute SPF for important prefixes first > > -and do by default with possibility to customize). > > So for the ASR920, you get about 20,000 FIB entries. That's what you want to > keep your eye on to determine whether you're at a point where you need to > do this. > > Ideally, you would be carrying IGP and LDP in FIB. With BGP-SD, you can > control the number of routes you want in FIB. > Also with OSPF prefix-suppression you can reduce the OSPF footprint to mere loopbacks (i.e. excluding all p2p links).
adam _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
