Hello,
I am trying to bring up a point to point fiber WAN between two datacenters. I have a 4451-X at each end, with GLC-LH-SMD SFP.
The physical link is up, however the routers can not ping each other. The telco providing the link assigned an IP...
They (telco) finally resolved this.
They changed the path to use Toronto-Vancover-Seattle-Dallas instead of Toronto-Chicago-Dallas, and it worked. Exact same hardware on both their NNIs. Cisco in Canada, Juniper in USA, going to Alcatel-Lucent swit...
DC tech has tried re-seating the SFP, swapping the SFP, and changing polarity on the cable. When we changed polarity, we lost the comms with the telco switch, I was unable to ping it or my router. Changed polarity back, and I was back to being able t...
It is in a datacenter, but I can have one of the DC techs do it I guess. My concern is that it is an LC patch cable, might not be so easy to swap. They should be easily able to reset the SFP as well.
I just enabled CDP, and my Toronto router shows in Dallas cdp neighbour table, but Dallas does not show in the Toronto cdp neighbour table. It is almost like packets can get out of Toronto, but not back in.
