With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwspPhyIdentifier
cwsp Phy Identifier
1.3.6.1.4.1.351.140.1.2.1.1.1.8
Indicates the physical identification of the interface. Mandatory when the port is provisioned for the first time through SNMP.
Back to CISCO-WAN-SVC-MIB MIB page.
IPHost Network monitor allows you to monitor cwspPhyIdentifier on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.