On Tue, 19 May 2020 at 00:22, Shawn L <[email protected]> wrote: > > Had another weird interface issue on a pair of Cisco ASR920 routers. > Wondering if anyone has seen something similar before. > > Both are setup with basic routing, no layer-2 functionality over the link, > and pretty basic. > > interface TenGigabitEthernet0/0/4 > description Feed > mtu 9189 > ip address 10.10.0.37 255.255.255.252 > no negotiation auto > mpls ip > > On the Remote Side > description Remote > mtu 9189 > ip address 10.10.0.38 255.255.255.252 > no negotiation auto > mpls ip > > Power went out at the remote site, and the link did not come back up. The > feed side was reporting the interface was down/down. When we went to the > remote site, it was reporting up/up but could not pass traffic. A shut/no > shut of the port on either side didn't seem to have any effect. Both came > right back to the same state they were before (remote reporting up, feed > reporting down). > > SFP removal and reinsertion didn't help either. We then re-provisioned the > port on the remote side (default interface, copy and paste) and the link > came back up and seems to be operating normally. > > Logs don't show anything interesting either. Not sure where to go from > here.
Hi Shawn, Did you ever get this resolved? Did you speak to TAC? There have been a few posts on this list about weird interface behavior for ASR920s, which seems to relate to the hidden TCL scripts run in the background when interfaces go up/down, change speed, SFPs are changed etc. I'm curious to know if you spoke to TAC and if they related it to the same source of problems. Cheers, James. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
