With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
atmfPortMyIfIdentifier
Cisco ATM Forum Port My If Identifier
1.3.6.1.4.1.353.2.1.1.1.8
A unique value for each ATM interface. The scheme used to number the ATM interfaces on an ATM device is implementation specific. One way to generate this value is to use the ifIndex that an SNMP manager would use to identify the port. This interface must be uniquely numbered on this system to distinguish parallel links with a neighboring system.
Back to ATM-FORUM-MIB MIB page.
IPHost Network monitor allows you to monitor atmfPortMyIfIdentifier 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.