[c-nsp] Etherchannel guard vs. mstp

David Hughes david at hughes.com.au
Wed Mar 11 18:59:17 EDT 2009


We are running etherchannel on 6500s with MST all over the place.   
Shouldn't be a problem.  Also swapping from RPVST+ to MST without a  
reload should not be a problem (did it many times when we migrated to  
MST).

Please post your physical interface and portchannel interface configs  
from both ends of the bundle that isn't working.


Thanks

David
...

On 10/03/2009, at 10:39 PM, Nemeth Laszlo wrote:

> \The first router was the Router A. It changed without problem.
> But when i sent the "spanning-tree mode mstp" to Router B it put  
> down the 4x10G Etherchannel link with Router A and logged it:
>
> Mar  9 16:04:57.669 MET: %PM-SP-STDBY-4-ERR_DISABLE: channel- 
> misconfig error detected on Te1/3, putting Te1/3 in err-disable state
> Mar  9 16:04:57.677 MET: %PM-SP-STDBY-4-ERR_DISABLE: channel- 
> misconfig error detected on Te1/4, putting Te1/4 in err-disable state
> Mar  9 16:04:57.685 MET: %PM-SP-STDBY-4-ERR_DISABLE: channel- 
> misconfig error detected on Te2/3, putting Te2/3 in err-disable state
> Mar  9 16:04:57.701 MET: %PM-SP-STDBY-4-ERR_DISABLE: channel- 
> misconfig error detected on Te2/4, putting Te2/4 in err-disable state
>
> Mar  9 16:04:57.641 MET: %PM-SP-4-ERR_DISABLE: channel-misconfig  
> error detected on Po3, putting Te1/3 in err-disable state
> Mar  9 16:04:57.653 MET: %PM-SP-4-ERR_DISABLE: channel-misconfig  
> error detected on Po3, putting Te1/4 in err-disable state
> Mar  9 16:04:57.665 MET: %PM-SP-4-ERR_DISABLE: channel-misconfig  
> error detected on Po3, putting Te2/3 in err-disable state
> Mar  9 16:04:57.673 MET: %PM-SP-4-ERR_DISABLE: channel-misconfig  
> error detected on Po3, putting Te2/4 in err-disable state
> Mar  9 16:04:57.685 MET: %PM-SP-4-ERR_DISABLE: channel-misconfig  
> error detected on Po3, putting Po3 in err-disable state



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