sso

Cisco Catalyst Switches like  Catalyst 6500 series and Catalyst 4500-R series and highend routers lsupport Redundant Supervisor modules to be installed. The Redudndant Supervisor Modules startup and run as a standby device and takes over when the active module fails. The Active Supervisor Engine syncs time and config onto the redundant supervisor engine every 1 sec and when running-config is copied to the Start-up config. The failover mode Stateful switchOver (SSO) we use here allows failover in 1 second or more. Check your Catalyst switch / Routers and the Supervisor Engine documentation for the supported modes of redundancy.Read More →