With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsL3VpnVrfOperStatus
mpls L3 Vpn Vrf Operational Status
Denotes whether or not a VRF is operational. A VRF is up(1) when there is at least one interface associated with the VRF whose ifOperStatus is up(1). A VRF is down(2) when: a. There does not exist at least one interface whose ifOperStatus is up(1). b. There are no interfaces associated with the VRF.
Back to MPLS-L3VPN-STD-MIB MIB page.
IPHost Network monitor allows you to monitor mplsL3VpnVrfOperStatus 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.