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VSS sup module


 Say i have two core swiches with each on with a VSS Sup 720-10G, if the VSS supervisor 720-10GE dies on one of the core switch does the core switch with still good VSS Sup 720-10G support all the routing, etc for both core switches?



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No it doesn't.Each switch can

No it doesn't.

Each switch can forward data as long as the supervisor in each switch is up.

If the supervisor in a switch fails then the whole switch fails. The other switch can still forward traffic and all traffic would now go via this switch.

But the switch that is still up will not take over the linecards in the failed switch. They will be down until the failed switch has a working supervisor.



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BTW, the exception to what Jon describes, is, if 6500 VSS members have a 2nd sup.  Newer IOS versions, when running VSS, support sup redundancy within the same chassis.  If there are two sups with the chassis, and both fail, then as Jon described, that VSS member would "die".

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