Etherchannel issues

From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Mon Dec 05 2005 - 17:10:31 GMT-3


I know I have done this a million times before, but am running into some
issues. I am setting up vtp server/client between two cats with etherchannel,
using fa0/13 and fa0/14 and having problems. Here is a section of the show
etherchannel detail (I am trying to find more info on the flags on docCD and
not finding it)....

Local information:
                                Hello Partner PAgP Learning Group
Port Flags State Timers Interval Count Priority Method Ifindex
Fa0/14 SAC U6/S7 HQ 30s 1 128 Any 29

Here is the config....
CAT1.....
!
interface Port-channel1
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
(output omitted)
!
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode desirable
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode desirable
!

CAT2....

interface Port-channel1
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
(output omitted)
!
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode auto
!
interface FastEthernet0/14
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode auto
!

The vlan information is not being sent from CAT1 to CAT2 through VTP. Maybe
this is a bug in the software? Maybe I'm just missing something. Is there
some strange order that needs to happen to initiate the etherchannel?

Dave



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