With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
atmfMySystemIdentifier
Cisco ATM Forum My System Identifier
1.3.6.1.4.1.353.2.1.4
A 48 bit identifier, taken from the IEEE universally administered MAC address space, which uniquely identifies the ATM device local to this IME.
Back to ATM-FORUM-MIB MIB page.
IPHost Network monitor allows you to monitor atmfMySystemIdentifier on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.