With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
caclIntervalNumber
Cisco ATM cell layer Interval Number
1.3.6.1.4.1.9.9.133.1.2.2.1.1
A number between 0 and 96, where 1 is the most recently completed 15 minute interval and 96 is the 15 minutes interval completed 23 hours and 45 minutes prior to interval 1. 0 means the current interval being collected.
Back to CISCO-ATM-CELL-LAYER-MIB MIB page.
IPHost Network monitor allows you to monitor caclIntervalNumber on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.