OT: VSS + MEC - port-channel dynamically cloned?

Ross Vandegrift ross at kallisti.us
Tue Nov 24 12:57:20 CST 2009


On Tue, Nov 24, 2009 at 07:51:29AM +0100, Leland Vandervort wrote:
> Essentially, for all of the MEC connections, the VSS has created a clone
> of the configured port-channel to bind the actual physical connections,
> rather than binding them under the configured port-channel (and suffixed
> the port-channel number with A or B depending on which chassis was first
> to bind).

IOS does this when ethernet channel members cannot join the bundle due
to negotiation mismatch.  If the currently active elements are
incompatible with a new element, the A/B interfaces are created.
These are called "secondary aggregators" in IOS-speak.

http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a0080094470.shtml#po1a

-- 
Ross Vandegrift
ross at kallisti.us

"If the fight gets hot, the songs get hotter.  If the going gets tough,
the songs get tougher."
	--Woody Guthrie
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