08-08-2013 03:21 AM - edited 03-07-2019 02:49 PM
Hi all
I have created 1 new port channels on a 6509 connected to ASR1002
Below the show about the Port-Channel
Port-channel9 unassigned YES unset down down
Port-channel9B unassigned YES unset up up
Can someone explain what this is any why it is occurring?
Thanks
Marco
08-08-2013 04:12 AM
Hi Marco,
Is that on the 6500 side or ASR side? Do a show interface po3B, and show run int po3B.
HTH
Lei Tian
Sent from Cisco Technical Support iPhone App
08-08-2013 05:06 AM
Hi Lei
is on 6500 side.
c6509e-00#sh int po9B
Port-channel9B is up, line protocol is up (connected)
Hardware is EtherChannel, address is 001d.456d.ca59 (bia 001d.456d.ca59)
MTU 1500 bytes, BW 2000000 Kbit, 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 unknown
input flow-control is off, output flow-control is off
Members in this channel: Gi8/10 Gi8/36
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
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 1076000 bits/sec, 882 packets/sec
5 minute output rate 8490000 bits/sec, 1399 packets/sec
11961422 packets input, 3534458687 bytes, 0 no buffer
Received 6087 broadcasts (6077 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
0 input packets with dribble condition detected
18223769 packets output, 13177086156 bytes, 0 underruns
0 output errors, 0 collisions, 2 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
c6509e-00#sh run int po9
Building configuration...
Current configuration : 135 bytes
!
interface Port-channel9
switchport
switchport access vlan 181
switchport mode access
end
thanks
Marco
08-08-2013 05:59 AM
Hi Marco,
Do search 'spawn port channel' on google, and you should find similar cases. Basically, it was caused by mis-configuration on port channel.
HTH,
Lei Tian
Sent from Cisco Technical Support iPhone App
08-08-2013 10:08 AM
Hi Marco,
this is called a "secondary aggregator port".
Like Lei has already stated, it's typically caused by misconfiguration between the member-ports.
Here you can find a similar discussion, I think it will provide you with all the information:
https://supportforums.cisco.com/message/3352041
Best regards
Rolf
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