Hi,
I have a new ATT ASE circuit and they have been troubleshooting now
for two weeks. The symptom simply is that I appear to have one-way
connectivity; Packets go from 'site a' to 'site b', but
Broadcast/Multicast does not go back from 'site b' to 'site a'. For
example, I can put static arp entries in both peices of my gear at
either end, and have ping connectivity. But if I remove these, then arp
doesn't complete and thus ping does not work. Stranger still, the 'site
b' can see the CDP neighbor announcements from 'site a', but that site
doesn't see the announcements from 'site b'.
Naturally ATT thinks it's me and wants me to replace / test / etc,
but I think it's misconfiguration on their end since its clearly
broadcast/multicast not being forwarded. On ATT end they have a Ciena
3960 if that helps anyone. On my side, 'site a' is a ME3600x while 'site
b' is an ASR920, if that helps. Does anyone have a better idea as to
what to look at here?
Mike-
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