With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfrExtCircuitIfName
Cisco Frame Relay Ext Circuit If Name
1.3.6.1.4.1.9.9.49.1.2.2.1.1
The textual name of the main interface or the subinterface that this DLCI is associated with. This is the same name string of an interface used in the configuration and all console displays, such as 'serial 0', 'serial 3/0.3', etc.
Back to CISCO-FRAME-RELAY-MIB MIB page.
IPHost Network monitor allows you to monitor cfrExtCircuitIfName 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.