With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdpCacheSysObjectID
Cisco Discovery Protocol Cache Sys Object ID
1.3.6.1.4.1.9.9.23.1.2.1.1.18
Indicates the value of the remote device's sysObjectID MIB object. This object is not instantiated if no sysObjectID field (TLV) was reported in the most recently received CDP message.
Back to CISCO-CDP-MIB MIB page.
IPHost Network monitor allows you to monitor cdpCacheSysObjectID 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.