If anyone knows of a similar set of information via SNMP, please let me know via a comment here.
Here is sample output:
Switch> show controllers utilization
Port Receive Utilization Transmit Utilization
Fa0/1 0 0
Fa0/2 0 0
Total Ports : 12
Switch Receive Bandwidth Percentage Utilization : 0
Switch Transmit Bandwidth Percentage Utilization : 0
Switch Fabric Percentage Utilization : 0
This is just the sort of data I would like to see for SPAN ports. You can specify the SPAN port in your syntax (e.g., show controllers fastethernet0/1 utilization) to see how much traffic it is carrying to your sensor.
The current Packet issue also features excellent articles on new modularity features of Cisco IOS and an overview of 10 GB Ethernet and its seven (yes, seven) variants. (There appear to be more, actually.) That sort of information reminds me of my "second law of information technology," which is "complexity increases." The second law of IT is constantly fighting the second law of thermodynamics, which is "entropy increases."