With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdpvmDiffLoginDevType
Dynamic Port Vsan Membership Diff Login Device Type
1.3.6.1.4.1.9.9.421.1.1.10.1.3
Specifies the type of the corresponding instance of cdpvmDiffLoginDev object.
Back to CISCO-DYNAMIC-PORT-VSAN-MIB MIB page.
IPHost Network monitor allows you to monitor cdpvmDiffLoginDevType on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.