Output errors, Transmit discards and big buffer errors on 1121 AP

Prag Patel — Sun, 04 Jul 2021 03:46:33 GMT

I have a AIR-AP1121G-A-K9 running c1100-k9w7-tar.123-7.JA2 (Autonomous)

We have monitoring setup with Orion NPM and we consistently see output errors, Transmit discards and big buffer errors

The users at the site have not reporting any issues but was wondering how to prevent these or are these normal?

What causes the output errors on Wireless Radio ? How to troubleshoot further ?

Radio0-802.11G

Total Output Errors 0 47749

Small Buffer Misses

4 misses

139 misses

Medium Buffer Misses

117 misses

249 misses

Big Buffer Misses

62 misses

8982 misses

Dot11Radio0 is up, line protocol is up

MTU 1500 bytes, BW 54000 Kbit, DLY 1000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/479/0 (size/max/drops/flushes); Total output drops: 245980

Queueing strategy: fifo

Output queue: 0/30 (size/max)

5 minute input rate 48000 bits/sec, 25 packets/sec

5 minute output rate 34000 bits/sec, 22 packets/sec

32482389 packets input, 2056095954 bytes, 0 no buffer

Received 1622227 broadcasts, 0 runts, 0 giants, 0 throttles

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

0 input packets with dribble condition detected

44289160 packets output, 1268314927 bytes, 0 underruns

47752 output errors, 0 collisions, 1 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Thanks

Output errors, Transmit discards and big buffer errors on 1121 A

Leo Laohoo — Wed, 14 Sep 2011 23:14:40 GMT

This is normal.

Remember that wireless network is like a hub: One talks and everyone stops to listen and waits for their turn.