We have a c-bit DS3 connecting to 7609 routers on both ends. The DS3 intermittently will start taking errors and normalizes after we break the cross connection and re-connect it. During one of the troubleshooting sessions we blocked all traffic/data from hitting the DS3 and it stopped taking errors. We have also noticed during troubleshooting that if we monitor the DS3 we are seeing a frequency drift. There is no LEC provided timing on the DS3 but the routers are set to pull timing from it (the routers don't have their own timing source). The LEC states they never put timing on point to point DS3s. It is also unframed on their end and we have it set up with c-bit on both ends. We performed a 24 hour head to head test and it was clean. The DS3 could run clean for a few days, or at least the frequency does not fluctuate enough to cause the interface to drop, but eventually it will drop.
I found in the history of this distribution list that someone had a similar problem back in 2005. Does anyone remember if it was ever resolved and how? Does anyone have any thoughts on this issue? Thanks so much for any input you could suggest! Igor _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
