With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmplsTeP2mpTunnelBranchInIfIndex
cmpls Te P2mp Tunnel Branch In If Index
1.3.6.1.4.1.9.10.142.2.4.1.12
This is the index of incoming TE link physical I/F for the P2MP ingress tunnel branch. It is non-zero when the P2MP tunnel's incoming branch has been signaled and it is applicable only on mid point routers for tunnels having out-segment up and running. This object is not part of the original draft
Back to CISCO-IETF-MPLS-TE-P2MP-STD-MIB MIB page.
IPHost Network monitor allows you to monitor cmplsTeP2mpTunnelBranchInIfIndex on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.