With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpvlanVlanPrivateVlanType
cpvlan Vlan Private Vlan Type
1.3.6.1.4.1.9.9.173.1.1.1.1.1
Indicated the VLAN type as defined for Private VLAN feature.
Back to CISCO-PRIVATE-VLAN-MIB MIB page.
IPHost Network monitor allows you to monitor cpvlanVlanPrivateVlanType 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.