Users Guide

To disable BFD sessions, use the following commands.
• Disable BFD sessions with all OSPF neighbors.
ROUTER-OSPF mode
no bfd all-neighbors
• Disable BFD sessions with all OSPF neighbors on an interface.
INTERFACE mode
ip ospf bfd all-neighbors disable
Configure BFD for IS-IS
When using BFD with IS-IS, the IS-IS protocol registers with the BFD manager on the RPM. BFD sessions are
then established with all neighboring interfaces participating in IS-IS.
If a neighboring interface fails, the BFD agent on the stack unit notifies the BFD manager, which in turn
notifies the IS-IS protocol that a link state change occurred.
Configuring BFD for IS-IS is a two-step process:
1 Enable BFD globally.
2 Establish sessions for all or particular IS-IS neighbors.
Related Configuration Tasks
• Changing IS-IS Session Parameters
• Disabling BFD for IS-IS
Bidirectional Forwarding Detection (BFD) 192