hello
I have input , CRC and abort error in my 1721 router as shown below:
Serial0 is up, line protocol is up
Hardware is PowerQUICC Serial
Description: NSTT IRQ-MSL-003 TX
Interface is unnumbered. Using address of FastEthernet0 (xx.xx.xx.xxx)
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 167/255, txload 7/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive not set
Last input 05:44:10, output 00:00:00, output hang never
Last clearing of "show interface" counters 20:36:05
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 8394
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 47000 bits/sec, 83 packets/sec
7 packets input, 107 bytes, 0 no buffer
Received 5 broadcasts, 0 runts, 32 giants, 0 throttles
15793503 input errors, 862934 CRC, 6227491 frame, 0 overrun, 0 ignored, 870
3078 abort
5709557 packets output, 657639227 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=down DSR=up DTR=up RTS=up CTS=up
I used the router to recieve internet service , I check the cables , ( CAB-530MT= 72-0797-01) and I think that it is ok ,and I shielded it too.
when I remove the ethernet cables from the other interface the CRC error and the input error , are increased at constant value ( ie. the error is the same with or without the load).
I made several tests as the cisco toubleshooting books say , but it seem ok.
oh , one more thing , how can I know the ratio of error , over the traffic , cause in cisco troublshooting book said that when CRC increase 1% that mean it is a problem , how can I know that percent.
despite that the CRC error increase with or without the traffic , as I said , before .
thanx in advace
