With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cContextMappingBridgeInstanceEntry
Cisco Context Mapping Bridge Instance Entry
1.3.6.1.4.1.9.9.468.1.3.1
Information relating to a single mapping of cContextMappingVacmContextName to the corresponding bridge instance. To create a row in this table, a manager must set cContextMappingBridgeInstRowStatus to either 'createAndGo' or 'createAndWait'. To delete a row in this table, a manager must set cContextMappingBridgeInstRowStatus to 'destroy'.
Back to CISCO-CONTEXT-MAPPING-MIB MIB page.
IPHost Network monitor allows you to monitor cContextMappingBridgeInstanceEntry 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.