packets ignored on T1

[sarah12345]

What problem does it indicate when the input packets are ignored? I know that indicates the hardware runs low on internal buffers. Does it indicate a hardware issue? How do I check sanity of the hardware (it's a CHOC12).

#show inter Se7/0/0.6/25:1

Serial7/0/0.6/25:1 is up, line protocol is up

Hardware is C10K CHOC12 One Port

... ...

56807623 input errors, 0 CRC, 0 frame, 0 overrun, 56807623 ignored, 0 abort <=== ignored

Regards,

Sarah

[paolo bevilacqua]

Over which period of time you had this, what is the total input counters, and are the "ignored"still increasing ?

[sarah12345]

Hi Paolo,

The interface stat was never cleared, but I retrieved it every second for a few seconds, and the ignored count keeps on increasing.

#show inter Se7/0/0.6/25:1

Serial7/0/0.6/25:1 is up, line protocol is up

Hardware is C10K CHOC12 One Port

... ...

62328836 packets input, 1208172224 bytes, 0 no buffer

Received 0 broadcasts (0 IP multicast)

0 runts, 0 giants, 0 throttles

56807623 input errors, 0 CRC, 0 frame, 0 overrun, 56807623 ignored, 0 abort <===

401875038 packets output, 3628945171 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions no alarm present

Timeslot(s) Used: 1-24, subrate: 1536Kb/s, transmit delay is 0 flags

non-inverted data

Regards,

Sarah

[paolo bevilacqua]

Hi,

Not sure if user on that circuit are complaining but if the error counter is correct, they should because they amount to like 80%.

Now one should look at all this box entirely because such an high rate of "ingore" is not normal.Since it is an high-end router and you likely have a support contract, I suggest you contact the TAC where there are specialized teams for this kind of problems.

[sarah12345]

Hi Paolo,

Thanks, I'll contact TAC.

Sarah