With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cieIfVlStatsTable
cie If Vl Stats Table
1.3.6.1.4.1.9.9.276.1.1.4
This table contains VL (Virtual Link) statistics for a capable interface. Objects defined in this table may be applicable to physical interfaces only.
Back to CISCO-IF-EXTENSION-MIB MIB page.
IPHost Network monitor allows you to monitor cieIfVlStatsTable 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.