I have a 6509 with two sup 1a with pfc and two msfc2's. From the switch i can ping all vlan interfaces on msfc1 (slot 1 on active supervisor) from the same switch the only interface i can ping consistently is the vlan that the switch has its management interface in.
Other interfaces fail to respond or occasionally respond with 1 ping, a debug icmp on the 2nd msfc shows that the echo-request does not seem to reach it.
Any ideas on how i can troubleshoot this (the switch was recently upgraded to 8.2.1 which was when this problem appeared)
regards
mark
