How do do port channels on a 3750 stack?

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Jun 15th, 2010
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I have a couple of 3750 stacks.


I am trunking them together (I am runnign BGP on each of them with seperate providers and AS numbers...)


I am trying to set up some redundancy int he trunks so should one of the 3750s fail, the trunk will remain up.  I tried to set up a port channel group (L2 Ether Channel) across the two blades (one port on 3750 A and one on 3750 B), but that seems to be illegal.


Does anybody know how I can configure a L2 port channel across a 3750 stack?  Or something similar that achieves redundancy?


thanks

Joerg

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Ganesh Hariharan Wed, 06/16/2010 - 07:36
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I have a couple of 3750 stacks.


I am trunking them together (I am runnign BGP on each of them with seperate providers and AS numbers...)


I am trying to set up some redundancy int he trunks so should one of the 3750s fail, the trunk will remain up.  I tried to set up a port channel group (L2 Ether Channel) across the two blades (one port on 3750 A and one on 3750 B), but that seems to be illegal.


Does anybody know how I can configure a L2 port channel across a 3750 stack?  Or something similar that achieves redundancy?


thanks

Joerg

Hi Joerg,


Check out the below link also with sample example and configuration of etherchannel in 3750 switches.


http://docs.google.com/viewer?a=v&q=cache:SDcW6L7vPgYJ:https://www.cisco.com/application/pdf/paws/69979/cross_stack_etherchannel.pdf+sample+etherchannel+configuration+3750+stack&hl=en&gl=in&pid=bl&srcid=ADGEESi375x_AXG01ePZBL-54nmxS7HOMs5LgkjUpQXGfl-d-4VR6u6LUruekS9HSytNOOS-ytPl5s8007QHWLWjTq4PBmyiT5X9VdvbglHSTkAwg6Z-SL_2ipEleWEEjk6Scm4uaPLs&sig=AHIEtbRvEa8T4qYpmkvQDWh0JTNa6ZvMhA


Hope to Help !!


Ganesh.H


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