H3C Technologies H3C MSR 50 - Manual (Page 33)

25
An NQA test group functions as follows when it is associated with a track entry:
• If the consecutive failures reach the specified threshold, the NQA module tells the Track module that
the tracked object malfunctions. Then the Track module sets the track entry to Negative state.
• If the specified threshold is not reached, the NQA module tells the Track module that the tracked
object functions correctly. The Track module then sets the track entry to Positive state.
For more information about NQA, see Network Management and Monitoring Configuration Guide.
To associate Track with NQA:
Step Command Remarks
27. Enter system view. system-view N/A
28. Create a track entry, associate it
with an NQA reaction entry, 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 nqa entry
admin-name operation-tag reaction
item-number [ delay { negative
negative-time | positive positive-time }
* ]
No track entry is created by
default.
NOTE:
If the specified NQA test group or the reaction entry in the track entry does not exist, the status of the track
entry is Invalid.
Associating Track with BFD
BFD supports the control packet mode and echo packet mode. You can only associate a track entry with
the echo-mode BFD session. Before that, you must configure the source IP address of BFD echo packets.
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 Negative state.
• If the BFD detects that the link is normal, the Track module sets the track entry to Positive state.
For more information about BFD, see "Configuring BFD."
Configuration procedure
To associate Track with BFD:
Step Command Remarks
29. Enter system view. system-view N/A
30. Configure the source IP address
of BFD echo packets.
bfd echo-source-ip ip-address
No source IP address of
BFD echo packets is
configured by default.
31. 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.