By default, the Route Statistics Polling is disabled. To enable the Route Statistics Polling you must enable it for each device participating in the VPN.
This is done by changing the “Route Statistics Data” value, found in the MplsVpn Container model’s “Associated Edge Router” subview, from “No Polling” to “Polling” . The subview can be found by selecting the MplsVpn container model, and looking in the "Component Detail' pane -> "Information" tab -> "Associated Edge Routers" subview.
This changes the “RouteStatistics_EnableFlag” attribute (0x13360) from “No” to “Yes” and enables Spectrum to poll the “mplsVpnVrfPerTable” for the “MplsVpnApp” model associated with the device. Since the polling is enabled or disabled at the device level, once set, the polling will be enabled/disabled for every MplsVpn that the device participates in.
For large networks, you may want to use the Attribute Editor, or a Policy Manager policy to enable the “RouteStatistics_EnableFlag” attribute (0x13360) for those devices you know participate in an MPLS VPN.
Also, keep in mind the Polling Interval for “Route Statistics Polling” is controlled by the VPN Manager model, and not at the device.
By default, Spectrum will poll for the “mplsVpnVrfPerTable” data every 300 seconds (5 minutes), for each of the devices that have the “RouteStatistics_EnableFlag” attribute (0x13360) set to "Yes". The Configuration subview can be found by selecting the VNP Manager model and looking in the "Component Detail" pane - "Information" tab - "Configuration" subview.