Does 6509 VSS support VPC?

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Collin Clark Tue, 09/28/2010 - 13:34
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Specifically speaking the 6500 series does not support VPC. In the 6500 you can use VSS.

danrya Tue, 09/28/2010 - 14:38
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vPC is virtual port channel, and allows a port channel to cross 2 chassis.  Since VSS takes 2 chassis and makes them 1 logical chassis, it basically does the same thing, without the added configuration.

Just create the VSS system.  Then create a portchannel with ports in both chassis.  Thats it!

Or are you asking if you can create a vPC using multiple VSS systems (not one system)?


rcampo Tue, 09/28/2010 - 15:36
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Yes as long as the port channels are didicated to each upstream switch. 2 different channels for 2 different switches  Not shared between them.

rcampo Tue, 09/28/2010 - 15:48
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I am afraid not.  You have a divided control plane issue coordinating traffic back and forth.  Now vPC on the other hand should work since it is not being handled like a port channel.

danrya Tue, 09/28/2010 - 17:11
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Unfortunately, unless the upstream switches are VSS or Nexus, no.  All ports on each end of the Port Channel must reside in the same "control plane" or the switches must support vPC. 


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