The value of vRtrMvpnIpmsiEnableBfdRoot specifies whether or not
Bi-directional Forwarding Detection is enabled on the tunnel root.
When the value is 'true', the bfd session over RSVP-TE P2MP LSP for
upstream fast failover tunnel status detection is enabled on the root.
When it is 'false', the bfd session is disabled on the root.
An 'inconsistentValue' error is returned if an attempt is made to set
this object to 'true' without specifying a value for
vRtrMvpnIpmsiBfdRtTraInt.
The value of this object is only applicable when vRtrMvpnIpmsiType is
set to 'rsvp'.