With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsL3VpnVrfRteInetCidrMetric2
mpls L3 Vpn Vrf Rte Inet Cidr Metric2
An alternate routing metric for this route. The semantics of this metric are determined by the routing protocol specified in the route's mplsL3VpnVrfRteInetCidrProto value. If this metric is not used, its value should be set to -1.
Back to MPLS-L3VPN-STD-MIB MIB page.
IPHost Network monitor allows you to monitor mplsL3VpnVrfRteInetCidrMetric2 on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.