With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoAtmSnoopVpDir
cisco Atm Snoop Vp Directory
1.3.6.1.4.1.9.10.13.1.6.1.1.3
This specifies the traffic direction at the snooped connection endpoint.
Back to CISCO-ATM-CONN-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoAtmSnoopVpDir on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.