R0106-HP MSR Router Series High Availability Configuration Guide(V7)

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• If the BFD detects that the link is operating correctly, the Track module sets the track entry to Positive
state.
Configuration prerequisites
Before you associate Track with BFD, configure the source IP address of BFD echo packets. For more
information, see "Configuring BFD."
Configuration procedure
To associate Track with BFD:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
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.
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 } * ]
No track entry is created
by default.
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 link 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 link or network-layer protocol status of the interface changes to up, the interface
management module informs the Track module of the change. The Track module sets the track entry
to Positive.
• When the link or network-layer protocol status of the interface changes to down, the interface
management module informs the Track module of the change. The Track module sets the track entry
to Negative.
To associate Track with interface management:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A