i have been receiving a lot of crc errors on a fiber module port. i have replace the fiber patch cable and even went so far as to replace the 4 port fiber card. i can't get a handle on where they are coming from. the other end is connected to a 2900M as well. i only see a larger number of crc on the one interface.
FastEthernet2/2 is up, line protocol is up
Hardware is Fast Ethernet, address is 0003.e393.c468 (bia 0003.e393.c467)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 2/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:10, output 00:00:00, output hang never
Last clearing of "show interface" counters 07:23:38
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