With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsInSegmentPerfErrors
mpls In Segment Perf Errors
1.3.6.1.3.96.1.4.1.3
The number of errored packets received on this segment.
Back to MPLS-LSR-STD-MIB MIB page.
IPHost Network monitor allows you to monitor mplsInSegmentPerfErrors 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.