The unique value of vRtrSecondaryVrfId specifies the secondary vrf-id
for hub and spoke vprn.
Non-zero value of vRtrSecondaryVrfId indicates that two
route-tables exist for hub and spoke vprn system one each for hub and
spoke. One of which is indexed by vRtrSecondaryVrfId.
If the value of vRtrSecondaryVrfId is zero, it indicates that
there is only one route-table for hub and spoke vprn system.