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Community Member

Ethernet Stats

I have been watching my Ethernet port on my 3640 router and have been noticing that the counter for deferred is rising constantly. Does anyone know what this counter mean?

Here is a sample of the ethernet port on my router

5 minute input rate 610000 bits/sec, 354 packets/sec

5 minute output rate 634000 bits/sec, 371 packets/sec

420157 packets input, 89370552 bytes

Received 621 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 watchdog

0 input packets with dribble condition detected

424837 packets output, 90576337 bytes, 0 underruns(0/0/0)

0 output errors, 0 collisions, 0 interface resets

0 babbles, 0 late collision, 2904 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Please let me know what this may mean.


Community Member

Re: Ethernet Stats

Just a suggestion: You might get a quicker response to your question in the future if you post to the proper discussion group. But here's your answer....

The deferred counter counts the number of times the interface has tried to send a frame, but found the carrier busy at the first attempt (Carrier Sense). This does not constitute a problem, and is part of normal Ethernet operation.

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