Hi, portfast will move ports to forwarding state bypassing listerning/learning state. About: 1/ BPDU sent :  Try "sh span int <port 3> det | i BPDU" and check if you see sent counters incrementing. >>> It still send BPDU 2/  BPDU receive: Yes it s...

Hi Louis, Is it possible to provide. 1/ running config from R-A, R-B , S-B. 2/ Can you run icmp debug on R-B and verify if request/reply reaching to this router. Regards Mahesh

Hi Louis, Can you provide some more information. A---B---Switch-10.10.9.216 A able to trace upto 10.10.9.216 ?B not able to trace upto 10.10.9.216..Problem What source IP you are using while tracing from B. Are we sure that 10.10.9.216 has idea of ...

A----> B Let's say A is hit with some packets for unknown destination. There are two possibility. 1/ If A has no idea about destination and default route is in routing table pointing to B then it will route packet to B 2/ If A has no idea about de...

Hi Anil, Assume it is simple form of Hub and Spoke topology. Vrf A want to communicate with vrf B and same way reverse too. You may play with rt values. It is very simple to understand: One vrf export prefix with certain tag and another vrf import ...