How does Cricket differ from MRTG ?
Short answer: in more ways than meet the eye. The most noticable are that Cricket has built in magic to look up and verify SNMP instances (MRTG only verifies instances). Cricket does away with creating the images every five minutes, which should allow your management station to monitor more datasources with fewer resources. Cricket also has built in threshold monitoring. In practice, MRTG has involved since Cricket began, and other alternatives appeared. Choosing between network monitoring tools requires more decisions than this FAQ can deal with.