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

[mb at adv.gcomm.com.au]

Hi,


Have an active portchan that currently has one 100Mb port - Trying to 
add second port, I am getting the following in the logs:


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):


interface FastEthernet0/20
description trunk 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
shutdown
mls qos trust dscp
no cdp enable
channel-group 2 mode on
spanning-tree bpdufilter enable
spanning-tree guard root


interface FastEthernet0/21
description FEC_TO_ESW02_P2
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
mls qos trust dscp
no cdp enable
channel-group 2 mode on
spanning-tree bpdufilter enable
spanning-tree guard root



And switchports are not reporting as "dynamic":


#sh int fastEthernet 0/20 switchport Name: Fa0/20
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: down (suspended member of bundle Po2)
Administrative Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none


#sh int fastEthernet 0/21 switchport Name: Fa0/21
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk (member of bundle Po2)
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


The switch causing the problems is C2950G-24-EI - Is this a known 
bug...any suggestions on work-around?


Thanks in advance.


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