07-26-2010 06:26 AM - edited 03-06-2019 12:11 PM
Guys,
We've got a 4gig port-channel running from a 4506 -> 3750 (2 switch) stack.
We received a call last week regarding the network going slow and on the off chance we seen this issue and thought that the errors may have just been historical. The counters have been cleared 4 days ago but now they are nearly 1 million errors on the port-channel. It's strange as all 4 ports are configured with the same settings. I will post the outputs to the bottom of this and see if any of you experts can shed some light into this matter.
Thanks for your time!
Thomas.
4506 -
4506# sh int po5
Port-channel5 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 000f.2386.f700 (bia 000f.2386.f700)
Description: Link (4Gb/s) to 3750
MTU 1500 bytes, BW 4000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 6/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is N/A
input flow-control is off, output flow-control is unsupported
Members in this channel: Gi5/33 Gi5/34 Gi5/35 Gi5/36
ARP type: ARPA, ARP Timeout 04:00:00
Last input 1w4d, output never, output hang never
Last clearing of "show interface" counters 4d05h
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 94389000 bits/sec, 8567 packets/sec
5 minute output rate 3832000 bits/sec, 2974 packets/sec
1403144761 packets input, 2006168020857 bytes, 0 no buffer
Received 819344 broadcasts (249140 multicast)
0 runts, 0 giants, 0 throttles
911095 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
663932228 packets output, 82535420512 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
interface Port-channel5
description Link (4Gb/s) to 3750
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
end
interface GigabitEthernet5/33
description Link to 3750 Gi1/0/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
qos trust dscp
channel-group 5 mode active
end
interface GigabitEthernet5/34
description Link to gh5-d3750-1 Gi2/0/2
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
qos trust dscp
channel-group 5 mode active
end
interface GigabitEthernet5/35
description Link to 3750 Gi1/0/3
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
qos trust dscp
channel-group 5 mode active
end
interface GigabitEthernet5/36
description Link to 3750 Gi2/0/4
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
qos trust dscp
channel-group 5 mode active
end
3750
3750# sh int po1
Port-channel1 is up, line protocol is up (connected)
Hardware is EtherChannel, address is 0022.be4d.f783 (bia 0022.be4d.f783)
Description: Link (4Gb/s) to 4506
MTU 1500 bytes, BW 4000000 Kbit, DLY 10 usec,
reliability 255/255, txload 5/255, rxload 1/255
Encapsulation ARPA, loopback not set
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: Gi1/0/1 Gi1/0/3 Gi2/0/2 Gi2/0/4
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:27, output hang never
Last clearing of "show interface" counters never
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 3639000 bits/sec, 2795 packets/sec
5 minute output rate 87688000 bits/sec, 7976 packets/sec
67438141775 packets input, 8960156703405 bytes, 0 no buffer
Received 811103312 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 510144132 multicast, 0 pause input
0 input packets with dribble condition detected
146300873944 packets output, 210615114944396 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
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
description Link to 4506 Gi5/33
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
no mdix auto
channel-group 1 mode active
spanning-tree guard root
end
interface GigabitEthernet1/0/3
description Link to 4506 Gi5/35
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
no mdix auto
channel-group 1 mode active
spanning-tree guard root
interface GigabitEthernet2/0/2
description Link to 4506 Gi5/34
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
no mdix auto
channel-group 1 mode active
spanning-tree guard root
end
interface GigabitEthernet2/0/4
description Link to 4506 Gi5/36
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,6-11,21
switchport mode trunk
speed 1000
duplex full
no mdix auto
channel-group 1 mode active
spanning-tree guard root
end
07-26-2010 06:13 PM
Hello,
Could you please check the output of "show controller ethernet-controller
sh controllers ethernet-controller fa 0/1
Transmit FastEthernet0/1 Receive
6213609 Bytes 4660517 Bytes
11954 Unicast frames 12102 Unicast frames
70472 Multicast frames 40914 Multicast frames
514 Broadcast frames 1608 Broadcast frames
0 Too old frames 776328 Unicast bytes
0 Deferred frames 3578396 Multicast bytes
0 MTU exceeded frames 160275 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 13682 Minimum size frames
0 8 collision frames 37725 65 to 127 byte frames
0 9 collision frames 1112 128 to 255 byte frames
0 10 collision frames 2105 256 to 511 byte frames
0 11 collision frames 0 512 to 1023 byte frames
0 12 collision frames 0 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames 0 Pause frames
0 15 collision frames
0 Excessive collisions 0 Symbol error frames
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 0 Valid frames, too large
0 Excess defer frames 0 Invalid frames, too small
69811 64 byte frames 0 Valid frames, too small
10210 127 byte frames
595 255 byte frames 0 Too old frames
2226 511 byte frames 0 Valid oversize frames
96 1023 byte frames 0 System FCS error frames
2 1518 byte frames 0 RxPortFifoFull drop frame
0 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames
Hope this helps.
Regards,
NT
07-27-2010 12:56 AM
Unfortunately our 4500 doesn't seem to have that command but is still racking up on the errors. I am just thinking how actual critical these errors actually are? Since we've had that many already on the interface and nothing has been done.
I know that's not the correct attitude but it's strange how it's sporadic over the 4 physical interfaces with no prejudice on 1 gig port than any other.
If anyone can help that would be a massive help as I think am hitting my head off a brick wall.
Cheers,
Thomas.
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