With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvnVethIfTable
cvn Veth If Table
1.3.6.1.4.1.9.9.710.1.1.1
A list of virtual ethernet interfaces managed by VSM.
Back to CISCO-VIRTUAL-NIC-MIB MIB page.
IPHost Network monitor allows you to monitor cvnVethIfTable 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.
