I have cisco 7201 (Version 12.4.20T) with on-board 4 GigabitEthernet interfaces:
GigabitEthernet 0/0 and GigabitEthernet 0/1 bundled in one logical link PortChannel 1 and connected to Сisco 3750;
GigabitEthernet 0/2 and GigabitEthernet 0/3 bundled in one logical link PortChannel 2 and connected to Сisco 2960;
PortChannel 1 is working fine, but PortChannel 2 is working strange.
If I make show interface GI 0/2 adn GI 0/3 , then showed :
show int gi 0/2
GigabitEthernet0/2 is up, line protocol is up
Hardware is MV64460 Internal MAC, address is 0021.d8d7.e119 (bia 0021.d8d7.e119)
Description: Uplink to Macomnet; need check phisical port!
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 24/255, rxload 6/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is autonegotiation, media type is T
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 2d04h, output 00:00:00, output hang never
Last clearing of "show interface" counters 2d04h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 25557000 bits/sec, 29869 packets/sec
5 minute output rate 96161000 bits/sec, 15569 packets/sec
682020535 packets input, 1311889074 bytes, 0 no buffer
Received 6 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 389 multicast, 0 pause input
0 input packets with dribble condition detected
403292412 packets output, 4195595996 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
show int gi 0/3
GigabitEthernet0/3 is up, line protocol is up
Hardware is i82546, address is 0021.d8d7.e119 (bia 0021.d8d7.e117)
Description: Uplink to Macomnet
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 23/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is autonegotiation, media type is T
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 2d04h, output 00:00:00, output hang never
Last clearing of "show interface" counters 2d04h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 90664000 bits/sec, 15042 packets/sec
11563 packets input, 1305950 bytes, 0 no buffer
Received 21 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 17 multicast, 0 pause input
0 input packets with dribble condition detected
396608924 packets output, 3667016890 bytes, 0 underruns
0 output errors, 0 collisions, 0 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
It's show that in Interface Gi 0/3 Input rate is 0 input packet.
If I shutdown Gi 0/2, then communication is lost and not connectivity.
And If I shutdown Gi 0/3 then communication is fine and having connectivity.
Have anybody had same problem?
