Uplink port of this router is one and off, which cause instability on the infrastructure. We close it.
Update(s):
Date: 2013-07-25 18:18:17 UTC CRC have not increased in 2 days.
Date: 2013-07-23 13:58:21 UTC We have also noticed that CRC on rbx-s5/s6-6k.
We think that pcc-1b-n7 optics sent CRCs due to the heat.
We are going the change the optics and increase the cooling for n7.
There is currently no CRC present.
We are monitoring.
Date: 2013-07-23 10:34:14 UTC We have changed 2 optics on the nexus 7000. We don't notice any up/down so far. There is no longer any CRC (Cyclic Redundancy Check) on ports.
We are monitoring.
Date: 2013-07-22 16:03:48 UTC After a troubleshoot, we noticed that many ports on different routers have the same symptoms. It is therefore likely that there is a fault on one of the switches: pcc-1b-n7. We must now determine whether it's an optical or hardware issue.