With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsInSegmentOctets
mpls In Segment Octets
1.3.6.1.3.96.1.4.1.1
This value represents the total number of octets received by this segment.
Back to MPLS-LSR-MIB MIB page.
IPHost Network monitor allows you to monitor mplsInSegmentOctets on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.