With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdmsInventoryElementMacAddress
Cisco Digital Media Management System Inventory Element Mac Address
1.3.6.1.4.1.9.9.655.1.3.2.1.3
The MAC address of the DMS inventory element. This object may not be supportable for all inventory elements. For an element where the MAC address is not available, the value of this object would be empty.
Back to CISCO-DIGITAL-MEDIA-SYSTEMS-MIB. MIB page.
IPHost Network monitor allows you to monitor cdmsInventoryElementMacAddress 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.