HP 5130 EI Switch Series, Руководство по настройке, Страница: 138 / 171

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• If the BFD detects that the link fails, it informs the track entry of the link failure. The Track module sets
the track entry to Negative state.
•
If the BFD detects that the link is operating correctly, the Track module sets the track entry to Positive
state.
Before you associate Track with BFD, configure the source IP address of BFD echo packets. For more
information, see " Configuring BFD ."
To associate Track with BFD:
Step 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 l ocal-ip [ delay { negative
negative-time | positive positive-time } * ]
No track entry is created
by default.
Associating Track with CFD
CFD operates as follows when it is associated with a track entry:
•
If the CFD detects that the link fails, it informs the track entry of the link failure. The Track module
then sets the track entry to Negative state.
• If the CFD detects that the link is operating correctly, the Track module sets the track entry to Positive
state.
Before you associate Track with CFD, enable CFD and create a MEP. For more information, see
" Configuring CFD ."
To associate Track with CFD:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Create a track entry, associate it
with the CFD 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 cfd cc
service-instance instance-id mep mep-id
[ delay { negative negative-time | positive
positive-time } * ]
No track entry is
created by default.
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 operates 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.