I have a pair of 2602is running in autonomous mode. One of them refuses to negotiate or form a link at gigabit speeds on its wired port. The other one performs fine. I have swapped the physical location of the two APs, confirming that the problem follows the AP, ruling out any of the intermediate infrastructure. I have tried both 'speed auto' and 'duplex auto' as well as 'speed 1000' and 'duplex full.' In both cases, the output of 'show interfaces GigabitEthernet0' shows 'Full Duplex, 100Mbps, media type is T.' Has anyone encountered this before?
See below for more:
Working AP:
ap1#show run int gi0
Building configuration...
Current configuration : 159 bytes
!
interface GigabitEthernet0
no ip address
duplex auto
speed auto
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
end
ap1#show int gi0
GigabitEthernet0 is up, line protocol is up
Hardware is PowerPC Ethernet, address is xxxx.xxxx.xxxx (bia xxxx.xxxx.xxxx)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1Gbps, media type is T
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/18174/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 9000 bits/sec, 14 packets/sec
5 minute output rate 2000 bits/sec, 2 packets/sec
14672368 packets input, 1507277654 bytes, 0 no buffer
Received 5685838 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
7821057 packets output, 81120759 bytes, 0 underruns
0 output errors, 0 collisions, 2 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
ap1#
Problem AP:
ap2#show run int gi0
Building configuration...
Current configuration : 159 bytes
!
interface GigabitEthernet0
no ip address
duplex auto
speed auto
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
end
ap2#show int gi0
GigabitEthernet0 is up, line protocol is up
Hardware is PowerPC Ethernet, address is xxxx.xxxx.xxxx (bia xxxx.xxxx.xxxx)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 100Mbps, media type is T
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/18174/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 8000 bits/sec, 11 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
1930374 packets input, 353697824 bytes, 0 no buffer
Received 1873017 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
103129 packets output, 17340778 bytes, 0 underruns
0 output errors, 0 collisions, 2 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
ap2#
