HP 6125G HP 6125G & 6125G/XG Blade Switches High Availability Configur - Page 192

The BFD functions as follows when it is associated with a track entry: • If the BFD detects that the link fails, it informs the track entry of the link failure. The track module then sets the track entry to the Negative state. • If the BFD detects that the link is normal, the track module sets the track entry to the Positive state. For more information about BFD, see "Configuring BFD." Configuration prerequisites Before you associate track with BFD, configure the source address of the BFD echo packets. Configuration procedure To associate track with BFD: Step 1. Enter system view. 2. Create a track entry, associate it with the BFD session, and specify the delay time for the track module to notify the associated application module when the track entry status changes. Command system-view track track-entry-number bfd echo interface interface-type interface-number remote ip remote-ip local ip local-ip [ delay { negative negative-time | positive positive-time } * ] Remarks N/A No track entry is created by default. NOTE: When associating track with BFD, do not configure the virtual IP address of a VRRP group as the local or remote address of a BFD session. Associating track with interface management The interface management module monitors the physical status or network-layer protocol status of the interface. The interface management module functions as follows when it is associated with a track entry: • When the physical or network-layer protocol status of the interface changes to up, the interface management module informs the track module of the change and the track module sets the track entry to Positive. • When the physical or network-layer protocol status of the interface changes to down, the interface management module informs the track module of the change and the track module sets the track entry to Negative. To associate track with interface management: Step 1. Enter system view. Command system-view Remarks N/A 185