This may or may not help...

I had a system reboot from time to time, system was replaced and these line cards also:
NT7B75AAAF GATC CLIDNT7B75AAAE CII NT7B66DW

Fix in the end was using card that eneded in G

"There was a problem with cII card ending in D and E and first version F. These cards would just fail for no reason and a reboot would correct the problem. this was resolved in the G cards"


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www.curlycord.com
[Linked Image from telcopc.ca]
Toronto, Canada