With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvsVSLPortStatsIfindex
cvs VSL Port Stats Ifindex
1.3.6.1.4.1.9.9.388.1.3.3.1.1
The interface index for the configured physical port in the VSL.
Back to CISCO-VIRTUAL-SWITCH-MIB MIB page.
IPHost Network monitor allows you to monitor cvsVSLPortStatsIfindex on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.