With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
parSnNodeId
par Sn Node Id
1.3.6.1.4.1.351.130.1.1
This object specifies the node number of the node. When the network manager tries to modify the value of this object, a message is sent node state machine which propagates this information and the value gets modified only if the new node number is successfully propagated. The node number uniquely identifies a routing node in a network.
Back to CISCO-WAN-PAR-MIB MIB page.
IPHost Network monitor allows you to monitor parSnNodeId on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.