With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cbdMemberType
CISCO BRIDGE DOMAIN Member Type
1.3.6.1.4.1.9.9.642.1.2.1.1.2
This object identifies the type of the bridge domain member like ATM VC, Frame Relay VC, or Ethernet service.
Back to CISCO-BRIDGE-DOMAIN-MIB MIB page.
IPHost Network monitor allows you to monitor cbdMemberType on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.