NSR with BGP RIP sharding and BGP UpdateIO features
Junos OS enabled nonstop routing (NSR) for BGP RIP sharding and BGP UpdateIO features. With NSR enabled, the backup Routing Engine and backup routing protocol process (rpd) become the primary Routing Engine without negatively affecting the BGP peering sessions with the neighbors if the primary Routing Engine fails. The backup rpd processes the replicated BGP controlplane information and populates the route state in the same multithreaded manner as in the primary rpd.
After you configure NSR, the show bgp neighbor and show bgp summary commands display the information about the specific shards in the backup Routing Engine. To display the replicated information for a specific shard in the show bgp replication command, use the rib-sharding shard-name option.