US patent US12776974
Graceful transition in a connectivity test when a discriminator is changed in a seamless bidirectional forwarding detection (S-BFD) reflector node
Abstract
Systems and methods for performing connectivity checks, such as Seamless Bidirectional Forwarding Detection (S-BFD), are provided. A node is configured to operate in a network, the node is a Seamless Bidirectional Forwarding Detection (S-BFD) reflector node configured to operate an S-BFD session with an S-BFD initiator node. The node includes circuitry configured to, responsive to an S-BFD discriminator change in the S-BFD session to a new discriminator for the S-BFD session, cache an old discriminator for the S-BFD session, and receive, process, and respond to a S-BFD request from the S-BFD initiator node with an S-BFD response including one of the new discriminator or the old discriminator.