With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdpGlobalDeviceId
Cisco Discovery Protocol Global Device Id
1.3.6.1.4.1.9.9.23.1.3.4
The device ID advertised by this device. The format of this device id is characterized by the value of cdpGlobalDeviceIdFormat object.
Back to CISCO-CDP-MIB MIB page.
IPHost Network monitor allows you to monitor cdpGlobalDeviceId 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.