in IOS XR, when you configure BFD in static route, there is multihop option as in 'bfd fast-detect multihop <source address>' however you can't configure destination as we can in IOS XE. the router uses the directly connected neighbor interface addre...

according to RFC 5549 and 8950, BGP can use IPv6 neighborship to transport IPv4 address family and vice versa. if i understand correctly, this feature does not work if the core is IPv4 or IPv6 only. so what is the point in using it since you need bot...

in ios xe and xr, the 'distance bgp <external> <internal> <local>' command requires three numbers. what is the purpose of <local>?Routing, Routing Protocols

set up a IRB anycast gateway in two PEs for multihoming for one CE according to below guide. https://www.cisco.com/c/en/us/td/docs/routers/ios/config/17-x/mpls/b-mpls/m-evpn-over-mpls.html somehow it worked as expected until one PE failed and the CE ...