Cricket configuration based on SNMP for switch ports monitoring (suppose to be fast).
These files go under cricket user cricket-config.
The Defaults file contains many fields but only few are of general interest and the views configured there report only bytes, frames and errors.
The switches file shows examples of how to describe the port list that have to be monitored.
The ADDON directory contains a usefull tool that graphs set of ports performance.
May be MRTG also have to be installed for SNMP perl lib.
The ADDON scripts are not for beginner because I had no time to give them a good structure.