With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsVpnVrfCreationTime
mpls Vpn Vrf Creation Time
1.3.6.1.3.118.1.2.2.1.4
The time at which this VRF entry was created.
Back to MPLS-VPN-MIB MIB page.
IPHost Network monitor allows you to monitor mplsVpnVrfCreationTime 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.