Which VDX platform are you using? The faulty status could be due to the fan direction mismatch. Have you tried reloading the chassis after changing the fan direction to clear the faulty status?
Hello Pavan,fe80::/10 is for the local linkff00::/8 is for all multicast. This is sent to null0, since the VDX don't support ipv6 multicast. This is the same for all IPv6 protocol.
Yes, that should be correct. With 'spanning-tree edgeport bpdu-filter', it will prevent BPDUs from being transmitted out on the interface and drop it on received.