Sunday, 29 June 2025

Virtual Switching System(VSS):



Few Points to remember:--

In Simple terms, VSS is to combine multiple Cisco Catalyst switches into one virtual Switch.
The data plane of both clustered switches is active at the same time in both chassis.
For Control plane only one switch will be active and other will be standby.
In VSS, If one Chassis fails, the other one will take overwithout any downtime.
It eliminates STP.
This is supported both in Catalyst 6500 and 4500 series switches.
Need to make sure that peer VSS switch needs to be same hardware and software version..

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