BGP RPKI - RIB Notification

This feature introduces a configurable notification RIB list for BGP Origin Validation using resource public key infrastructure (RPKI). If there is a change of origin-autonomous-system in the route validation (RV) records, then the BGP import module must be notified in order to rerun the input validation state. Upon receiving a new RV record, the RV module queries the notification RIB whether a matching prefix exists. For example, inet.0 for the master instance if an IPv4 RV entry has been received, or inet6.0 for the master instance if an IPv6 RV entry has been received. For a shared multi-instance configuration (for example, master and VRF instance sharing the RV database), a list of all the "dependent" RIBs on this RV database may be configured. The notification RIB may contain an arbitrary set of tables that are looked up for dependent prefixes, which may require import policy re-evaluation. According to the default, the main instance IPv4 and IPv6 route tables are added to the notification RIB. (For example, the inet.0 and inet6.0 tables are added to the notification-rib list of the master route validation instance.)