With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsLabelStackLabel
mpls Label Stack Label
1.3.6.1.3.96.1.12.1.3
The label to pushed.
Back to MPLS-LSR-MIB MIB page.
IPHost Network monitor allows you to monitor mplsLabelStackLabel on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.