Normally when we require to see the over all utilization, we bank on MRTG or other health utilization tools but for a quick referrence, one can always use following command.
The show controllers utilization command on the Cisco Catalyst 2950 (other IOS switches probably support this) running Cisco IOS Software Release 12.1.22+ shows a summary of port utilization on all ports,including percentage and backplane/fabric utilization:
2950#show controllers utilization
Port Receive Utilization Transmit Utilization
Fa0/1 0 0
Fa0/2 0 0
Fa0/3 0 0
Fa0/4 0 0
< —- truncated —- >
Total Ports : 50
Switch Receive Bandwidth Percentage Utilization : 0
Switch Transmit Bandwidth Percentage Utilization : 0
Switch Fabric Percentage Utilization : 0
This can also be done on a per-port basis using sh
controllers FastEthernet 0/1 utilization.