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101
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track interface protocol
•
track
nqa
track bfd
Use
track bfd
to create a track entry and associate it with a BFD session.
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
Predefined user roles
network-admin
mdc-admin
Parameters
track-entry-number
: Specifies the track entry ID in the range of 1 to 1024.
interface
interface-type interface-number
: Specifies the outgoing interface by its type and number of
the 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 the amount of time the Track module waits before notifying the application modules
that the track entry state has changed. If you do not specify this keyword, the Track module notifies
the application modules immediately when the track entry state changes.
negative
negative-time
: Specifies the amount of time the Track module waits before notifying 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 seconds.
positive
positive-time
: Specifies the amount of time the Track module waits before notifying 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 seconds.
Usage guidelines
After a track entry is created, you can only use the
track bfd delay
command to modify its
notification delay settings. To modify other settings, you must delete the entry and create a new one.
When you configure collaboration between Track and BFD, do not configure the virtual IP address of
a VRRP group as the local or remote address of a BFD session.
Examples
# Create track entry 1, which uses BFD to monitor the link between local IP address 1.1.1.2 and
remote IP address 1.1.1.1 by sending BFD echo packets out from the VLAN-interface 2.
<Sysname> system-view
[Sysname] track 1 bfd echo interface vlan-interface 2 remote ip 1.1.1.1 local ip 1.1.1.2