Track Bfd Echo - HP 7500 Series High Availability Command Reference

Field
Protocol

track bfd echo

Use track bfd echo to create a track entry, associate it with the BFD session, specify using echo packets
in BFD probes, and specify the delay time for the track module to notify the application modules when
the status of the track entry changes.
Use undo track to remove the track entry.
Syntax
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 } * ]
undo track track-entry-number
Default
No track entry exists.
Views
System view
Default command level
2: System level
Parameters
track-entry-number: Track entry ID, which ranges from 1 to 1024.
interface interface-type interface-number: Specifies an interface by its type and number to save BFD
configurations. The interface also serves as the outgoing interface for BFD echo packets.
remote ip remote-ip: Specifies the destination IP address of the BFD echo packets.
local ip local-ip: Specifies the source IP address of the BFD echo packets.
delay: Specifies that the track module notifies the application modules of the track entry status change
after a specific delay time. If this keyword is not specified, the track module immediately notifies the
application modules when the track entry status changes.
negative negative-time: Specifies the delay time for the track module to notify the application modules
that the status of the track entry has changed to Negative. The negative-time argument represents the
delay time, in the range of 1 to 300, in seconds.
positive positive-time: Specifies the delay time for the track module to notify the application modules that
the status of the track entry has changed to Positive. The positive-time argument represents the delay time,
in the range of 1 to 300, in seconds.
Usage guidelines
After a track entry is created, you cannot change its settings except the delay time. To change the delay
time for this track entry, use the track bfd echo delay command. To modify other settings of this track entry,
first delete the entire track entry, and then create a new track entry.
Description
Physical status or Layer 3 protocol status of the monitored interface:
•
None—Physical status of the monitored interface.
•
IPv4—IPv4 protocol status of the monitored Layer 3 interface.
•
IPv6—IPv6 protocol status of the monitored Layer 3 interface.
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