With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vsiLogicalIfName
vsi Logical If Name
1.3.6.1.4.1.9.9.162.1.3.1.3
The physical descriptor of the logical interface, as reported by the VSI slave. It is distinct from ifName.
Back to CISCO-VSIMASTER-MIB MIB page.
IPHost Network monitor allows you to monitor vsiLogicalIfName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.