some hours back, an antique Cisco WS-C3750G-POE-48 started taking output
errors on multiple ports. they are generally vlan edge, a la
interface GigabitEthernet1/0/31
description x.sea eth1
switchport access vlan 10
shows output drops
antique.sea#show interfaces GigabitEthernet1/0/31
GigabitEthernet1/0/31 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is c40a.cb51.4d9f (bia c40a.cb51.4d9f)
Description: x.sea eth1
MTU 9000 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 5/255, rxload 2/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1532
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 11292000 bits/sec, 689 packets/sec
5 minute output rate 22658000 bits/sec, 765 packets/sec
2153269 packets input, 3859557279 bytes, 0 no buffer
Received 68 broadcasts (4 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 4 multicast, 0 pause input
0 input packets with dribble condition detected
2416117 packets output, 9034236494 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
any clues on how to debug? thanks.
randy
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errors on multiple ports. they are generally vlan edge, a la
interface GigabitEthernet1/0/31
description x.sea eth1
switchport access vlan 10
shows output drops
antique.sea#show interfaces GigabitEthernet1/0/31
GigabitEthernet1/0/31 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is c40a.cb51.4d9f (bia c40a.cb51.4d9f)
Description: x.sea eth1
MTU 9000 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 5/255, rxload 2/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1532
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 11292000 bits/sec, 689 packets/sec
5 minute output rate 22658000 bits/sec, 765 packets/sec
2153269 packets input, 3859557279 bytes, 0 no buffer
Received 68 broadcasts (4 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 4 multicast, 0 pause input
0 input packets with dribble condition detected
2416117 packets output, 9034236494 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
any clues on how to debug? thanks.
randy
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archive at http://puck.nether.net/pipermail/cisco-nsp/