With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsLabelStackEntry
mpls Label Stack Entry
1.3.6.1.3.96.1.12.1
An entry in this table represents one label which is to be pushed onto an outgoing packet, beneath the top label. An entry can be created by a network administrator or by an SNMP agent as instructed by an MPLS signaling protocol.
Back to MPLS-LSR-STD-MIB MIB page.
IPHost Network monitor allows you to monitor mplsLabelStackEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.