With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpvlanVlanEntry
cpvlan Vlan Entry
1.3.6.1.4.1.9.9.173.1.1.1.1
A conceptual row containing the Private VLAN information on the VLANs for a particular management domain.
Back to CISCO-PRIVATE-VLAN-MIB MIB page.
IPHost Network monitor allows you to monitor cpvlanVlanEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.