[c-nsp] Active Portchannel - Adding new member fails

mb at adv.gcomm.com.au mb at adv.gcomm.com.au
Wed Jul 27 18:01:58 EDT 2011


Quoting Peter Rathlev <peter at rathlev.dk>:

> On Thu, 2011-07-28 at 06:28 +1000, mb at adv.gcomm.com.au wrote:
>> Jul 27 22:17:44.744 GMT+10: %EC-5-CANNOT_BUNDLE2: Fa0/20 is not
>> compatible with Fa0/21 and will be suspended (trunk mode of Fa0/20 is
>> trunk, Fa0/21 is dynamic)
>>
>> Both Fa0/20 + Fa0/21 are configured the same(20 currently shutdown):
>
> Could you post the Po2 configuration also?
>
>> #sh int fastEthernet 0/20 switchport Name: Fa0/20
>
> And show interface Po2 switchport too. Could it be that the port-channel
> interface is somehow regarded as dynamic? I know that Fa0/21 shouldn't
> be able to be a member then, so it's a long shot.
>
> I personally have no experience with port-channels on 2950.
>

Thanks for the response:



interface Port-channel2
description FEC_TO_ESW02_BNE
switchport trunk allowed vlan 1,11,12,14,30,35,68,99,100,103,104,106-108,112
switchport trunk allowed vlan add 113,115,120-123,129,132-136,138,156,158,160
switchport trunk allowed vlan add 206,289,311,312,340,345,377-396,398,399,402
switchport trunk allowed vlan add 422,444,472,473,475,478-488,492,493,497,498
switchport trunk allowed vlan add 500,546,590,591,700,801-806,808,809,811-815
switchport trunk allowed vlan add 865,866,868,869,957,970,973,974,978,987,1829
switchport trunk allowed vlan add 2501,2506,2516,2518-2525
switchport mode trunk
switchport nonegotiate

#sh interface port-channel 2 switchport Name: Po2
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none



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