With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vsiLogicalIfMaxVpi
vsi Logical If Max Vpi
1.3.6.1.4.1.9.9.162.1.3.1.24
Maximum allowed vpi value for this interface as reported by VSI slave switch.
Back to CISCO-VSIMASTER-MIB MIB page.
IPHost Network monitor allows you to monitor vsiLogicalIfMaxVpi 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.