Definately RT is required. RT is an extended BGP community. With the help of RT the communication is possible in single VPN. If you are not using RT, In that case how you will receive the routes of same vpn on different PEs. The routes are imported from different PEs for same vpn in vrf occurs only with the help of route target. So it is mandid to add route target in that.
Introduction: The "external-out enable" command is available for
configuration under the "router ospf process" in case of the IOS-XR
operating system. This command basically enables advertisement of
intra-area routes on the device as external routes in th...
IntroductionIn this article we'll discuss how to troubleshoot packet
loss in the asr9000 and specifically understanding the NP drop counters,
what they mean and what you can do to mitigate them. This document will
be an ongoing effort to improve troublesh...