Dell Force10 E1200i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 177

To change parameters for static route sessions: Step 1 Task Change parameters for all static route sessions. Command Syntax Command Mode ip route bfd interval milliseconds min_rx milliseconds CONFIGURATION multiplier value role [active | passive] View session parameters using the command show bfd neighbors detail, as shown in the example in Changing physical port session parameters. Disabling BFD for static routes If BFD is disabled, all static route BFD sessions are torn down. A final Admin Down packet is sent to all neighbors on the remote systems, and those neighbors change to the Down state (Message 3). To disable BFD for static routes: Step 1 Task Disable BFD for static routes. Command Syntax no ip route bfd Command Mode CONFIGURATION Configuring BFD for OSPF When using BFD with OSPF, the OSPF protocol registers with the BFD manager on the RPM. BFD sessions are established with all neighboring interfaces participating in OSPF. If a neighboring interface fails, the BFD agent on the line card notifies the BFD manager, which in turn notifies the OSPF protocol that a link state change occurred. Configuring BFD for OSPF is a two-step process: 1. Enable BFD globally. Refer to Enabling BFD globally. 2. Establish sessions for all or particular OSPF neighbors. Refer to Establishing sessions with OSPF neighbors. Related configuration tasks • Changing OSPF session parameters. • Disabling BFD for OSPF. Establishing sessions with OSPF neighbors BFD sessions can be established with all OSPF neighbors at once, or sessions can be established with all neighbors out of a specific interface. Sessions are only established when the OSPF adjacency is in the full state. Bidirectional Forwarding Detection | 177