The value of vRtrMplsSrlgDBRtrIdRouterID specifies a 32-bit integer uniquely
identifying the router in the Autonomous System. By convention
to ensure uniqueness, this may default to the value of one of the
router's IPv4 host addresses, represented as a 32-bit unsigned
integer, if IPv4 is configured on the router. The router-id can be
either the local one or some remote router.