I have a remote site with two switches up-linked through a port channel of 4 interfaces. Recently been trying to troubleshoot slow internet speeds at this site and stumbled upon this in my discovery, not sure if it's related but certainly thought it could be contributing to something if not the speed issues.
The port channel interface has a last input of 1 week ago, last output is fine with 00:00:00. I checked the other end of the link and that port channel interface has a last output of 1 week ago, and last input of 00:00:00. The individual ports in the channel have seemingly fine input and outputs, ranging from 0 to a few seconds ago.
Could there be an issue with the port channel that I should look into further troubleshooting? Below are command outputs from the core switch first, and then the access.
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C2960S-48TS-L 15.2(1)E1 C2960S-UNIVERSALK9-M
!
Port-channel1 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 08cc.68f0.b9af (bia 08cc.68f0
Description: Uplink USNBSW004
MTU 1500 bytes, BW 4000000 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, 1000Mb/s, link type is auto, media type is unknown
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi1/0/45 Gi1/0/46 Gi1/0/47 Gi1/0/48
ARP type: ARPA, ARP Timeout 04:00:00
Last input 1w0d, output 00:00:00, output hang never
Last clearing of "show interface" counters 2d00h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 5310000 bits/sec, 1472 packets/sec
5 minute output rate 22573000 bits/sec, 2329 packets/sec
148829716 packets input, 42859646617 bytes, 0 no buffer
Received 3290420 broadcasts (1919927 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1919927 multicast, 0 pause input
0 input packets with dribble condition detected
285277214 packets output, 349110399341 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
GigabitEthernet1/0/45 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 08cc.68f0.b9ad (bia 08cc. 68f0.b9ad)
Description: Uplink USNBSW004
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, 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 00:00:03, output 00:00:02, output hang never
Last clearing of "show interface" counters 2d00h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops : 1425
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 395000 bits/sec, 207 packets/sec
5 minute output rate 2856000 bits/sec, 292 packets/sec
42180093 packets input, 8336766207 bytes, 0 no buffer
Received 813827 broadcasts (474132 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 474132 multicast, 0 pause input
0 input packets with dribble condition detected
69362349 packets output, 84087783159 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
5880 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
!
interface Port-channel1
description Uplink USNBSW004
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
end
!
interface GigabitEthernet1/0/45
description Uplink USNBSW004
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
end
!
interface GigabitEthernet1/0/46
description Uplink USNBSW004
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
end
!
interface GigabitEthernet1/0/47
description Uplink USNBSW004
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
end
!
interface GigabitEthernet1/0/48
description Uplink USNBSW004
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C2960S-48FPS-L 15.2(1)E1 C2960S-UNIVERSALK9-M
2 52 WS-C2960S-48FPS-L 15.2(1)E1 C2960S-UNIVERSALK9-M
3 52 WS-C2960S-48TS-L 15.2(1)E1 C2960S-UNIVERSALK9-M
!
Port-channel1 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 7010.5c8b.842f (bia 7010.5c8b.842f)
Description: Uplink USNBSW001
MTU 1500 bytes, BW 4000000 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, 1000Mb/s, link type is auto, media type is unknown
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi1/0/47 Gi1/0/48 Gi2/0/47 Gi2/0/48
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 1w0d, output hang never
Last clearing of "show interface" counters 02:00:28
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 25
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 26641000 bits/sec, 2693 packets/sec
5 minute output rate 5389000 bits/sec, 1708 packets/sec
19999422 packets input, 23088047070 bytes, 0 no buffer
Received 114635 broadcasts (93238 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 93238 multicast, 0 pause input
0 input packets with dribble condition detected
12974456 packets output, 6479931218 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
!
interface GigabitEthernet1/0/47
description Uplink USNBSW001
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
end
!
interface GigabitEthernet1/0/48
description Uplink USNBSW001
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
end
!
interface GigabitEthernet2/0/47
description Uplink USNBSW001
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
end
!
interface GigabitEthernet2/0/48
description Uplink USNBSW001
switchport trunk allowed vlan 1-60,90,96,120,150,172,192,220,240,517
switchport mode trunk
mls qos trust dscp
channel-group 1 mode on
