With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
mplsL3VpnVrfRTStorageType
mpls L3 Vpn Vrf RT Storage Type
The storage type for this VPN route target (RT) entry. Conceptual rows having the value 'permanent' need not allow write access to any columnar objects in the row.
Back to MPLS-L3VPN-STD-MIB MIB page.
IPHost Network monitor allows you to monitor mplsL3VpnVrfRTStorageType on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.