Been checking my pix "show interface" and I notice that I get 487 input errors, 231 CRC, 0 frame, 0 overrun, 231 ignored. I've doen a clear interface and did the "show interface" again after a day and I notice those errors again on the ethernet0 outside.
What does that mean? I asked a friend and he told me it is very likely that the cable connecting my pix from the IDC router is faulty thus causing that kind of errors, he advise me to get the IDC to change the cable. Want to hear a second opinion before I start talking to the IDC, don't want the engineer there to tell me it is not their fault. :) Thanks in advance.
interface ethernet0 "outside" is up, line protocol is up
Hardware is i82559 ethernet, address is 0014.a807.610c
IP address 184.108.40.206, subnet mask 255.255.255.224
MTU 1500 bytes, BW 100000 Kbit full duplex
884883 packets input, 855856783 bytes, 0 no buffer
crc basically is a mean for a device verifying the received data if there is any error during transmission.
according to cisco:
The number of Cyclical Redundancy Check errors. When a station sends a frame, it appends a CRC to the end of the frame. This CRC is generated from an algorithm based on the data in the frame. If the frame is altered between the source and destination, the security appliance notes that the CRC does not match. A high number of CRCs is usually the result of collisions or a station transmitting bad data.
i guess the issue is related to duplex mismatch between the pix and the outside interface connected device. also, verify the cable whether it's faulty or not.
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