[SA-list] SNMP checks

[Robb Fesig]

Is there anyway we can compare an SNMP value to a previously retrieved value in order to alarm on a comparison?   Example: Router S0 Error Count on 1st check: 8800 Check if change greater than 10 alarm - difference unknown, no alarm Router S0 Error Count on 2nd check: 8802 Check if change greater than 10 alarm - difference of 2 found, no alarm Router S0 Error Count on 3rd check: 8840 Check if change greater than 10 alarm - difference of 38 found, alarm sent Router S0 Error Count on 4th check: 8841 Check if change greater then 10 alarm - difference of 1 found, no alarm   Would this be possible, because it would be a great advantage to us to monitor line errors this way. If it's not possible, does anyone on the list have a suggestion that would work?     Thank You, Robert Fesig, Network Engineer American Computer Associates, Inc. (570) 874-1910