With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
slbDfpRealPort
slb Dfp Real Port
1.3.6.1.4.1.9.9.161.1.11.1.1.3
The port number of the real server.
Back to CISCO-SLB-MIB MIB page.
IPHost Network monitor allows you to monitor slbDfpRealPort 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.