This section looks at performance monitoring for switches. Many of the issues are the same as for routers. As with routers, performance monitoring in switch hardware relates mainly to slot positioning. MIBs and CLI commands are again the main ways of collecting information on switch chasses and cards. As with routers, the polling period for switch performance MIBs should be right after a change management window period.
From CISCO-STACK-MIB, MIB variables to watch for chassis information include the following:
chassisBkplType: The chassis backplane type—either fddi, fddiEthernet, Gigabit, or multiples of Gigabit.
chassisNumSlots: The number of slots available for plug-in ...