about PA-A6-OC3SMI 's CRC

[QFX527518]

in our company.when we update cisco 7507 to cisco 7606. and ATM port update PA-A3-OC3SMI to PA-A6-OC3SMI. but now,the CRC of the ATM port increase,the counters is almost 60~70 for running 4days.

WHY?

[Giuseppe Larosa]

Hello,

from a practical point of view if they are just 60-70 on four days it is not an issue.

a different port adapter inserted in a different linecard in a different router or more simply a different optical power budget and a different signal to noise to ratio that leads to some errors

Hope to help

Giuseppe