I am trying to lab a scenario for L3VPN where I do have a BGP VPNv4 RR and multihomed customers (CEs).
I wonder if we can utilize the mulitpathing using BGP diverse-path (IOS XE) or BGP Add-path (IOS XR) on the RR without changing the RDs.
The following is the XE related configuration which is now my concern right now.
The document uses the IPv4 unicast AFI/SAFI where we need to have the same configuration for the VPNv4.
I have configured the following configuration on my BGP VPNv4 RR. However, the additional path (diverse path) is not advertise to the PE peer where is my case its IP address is 126.96.36.199. Following is the config of the VPNv4 RR:
router bgp 200
no bgp default ipv4-unicast
neighbor 188.8.131.52 remote-as 200
neighbor 184.108.40.206 update-source Loopback0
neighbor 220.127.116.11 activate
neighbor 18.104.22.168 send-community extended
neighbor 22.214.171.124 route-reflector-client
neighbor 126.96.36.199 advertise diverse-path mpath
In the meantime, the doc states to use the maximum-path ibgp 4 where the "ibgp" term is available only under IPv4 unicast AFI/SAFI and not the VPNv4 AFI/SAFI.
any feedback or help is much appreciated.