The value of vRtrMvpnIpmsiType specifies the type of the
inclusive provider tunnel.
When the value of vRtrMvpnIpmsiType is set to 'rsvp', the inclusive
provider tunnel is used for RSVP. When the value is set to 'pim',
the inclusive provider tunnel is used for PIM. When the value is
set to 'ldp', the inclusive provider tunnel is used for LDP.