On 10/19/2015 04:46 AM, Dave Bell wrote:
Do you have anything in the way of COPP on either box that may be dropping packets? I would imagine the issue is likely to be on the AS1k end.
Additionally I see you have different interface speeds at each side. Is the thing in the middle at fault? ND is done using multicast.
One final thing is attempt to ping across the link local addresses. Make you you set the source address correctly.
I am able to ping the link local address of the 'opposite end' from each side, so it looks so me like that is working. I also notice, when I try pinging the 7201 from the asr1000, during that time, the output of 'show ipv6 neighbors" shows me this: sh ipv6 neighbors IPv6 Address Age Link-layer Addr State Interface FE80::xxxx:yyyy:FE2D:D190 6 xxxx.yyyy.d190 STALE Gi0/0.110025 xxxx:yyyy::1:1 0 - INCMP Gi0/0.110025 It looks to me like enough is 'working' that the asr1000 -> c7201 path is working, but not the other way around. And no, far as I know, I have no copp or other filtering that would (to my knowledge) create a one way situation. As far as the middle, I have ip/mpls that is bridging my vlan25 across the network: ! ME3600x - Facing ASR1000 Interface TenGigabitEthernet0/1 switchport trunk allowed vlan none switchport mode trunk mtu 9216 service instance 25 ethernet encapsulation dot1q 25 rewrite ingress tag pop 1 xconnect 10.0.15.3 2 encapsulation mpls mtu 9216 ! ! ME3600 - facing c7201 interface Vlan25 mtu 9216 no ip address xconnect 10.0.15.2 2 encapsulation mpls ! Do I need to make a special provision somewhere for multicast? This seems pretty basic setup to me. Mike-