In BGP routing, the terms soft reconfiguration and dynamic inbound soft reset often get conflated, but they refer to distinct capabilities. In this post, I’ll clarify the difference between these two methods for clearing BGP sessions. Soft Reconfiguration Soft reconfiguration is the older method, requiring the command “neighbor x.x.x.x soft-reconfiguration inbound” to be manually configured for each BGP neighbor. When enabled, this stores an unfiltered copy of all routes advertised by that neighbor. Then when clearing BGP with “clear ip … Continue reading Untangling Soft Reconfiguration and Dynamic Inbound Soft Reset (RFC 2918) in BGP