Cisco Input and CRC errors - how much is too much?
Posted on 2004-08-05
I have a Cisco 3600 in New York - connected to 2 remote sites - one in New Jersey over 2 multilinked point to point T1's to a 2600 and one in Florida to a 2600 over a single point to point T1 - I have not noticed any real performance issues or packet loss when doing various ping tests - but I cleared my counters about 3 hours ago - on the NJ 2600 I see about 400 input errors and 164 CRC errors on 1 of my T1 interfaces - in florida I see 54 input and 20 CRC errors - from the corresponding interfaces on the 3600 in NYC I see 87 input and 23 CRC going to NJ and for Florida I see 18 input and 7 CRC errors - this is all over about 3 hours or so - the NJ site moves much more data than the Florida site.
My question is...should I see any errors at all? And, if a certain amount of errors is normal - how can I figure out what the normal level of errors should be, based on amount of data I am moving?