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track interface protocol
Use
track interface
protocol
to create a track entry and associate it with the protocol state of a
specific interface.
Use
undo track
to remove the track entry.
Syntax
track
track-entry-number
interface
interface-type interface-number
protocol
{
ipv4
|
ipv6
} [
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-type interface-number
: Specifies an interface by its type and number.
ipv4
: Monitors the IPv4 protocol state. When the IPv4 protocol state of an interface is up, the state of
the track object is Positive. When the IPv4 protocol state of an interface is down, the state of the track
object is Negative. To display the IPv4 protocol state of an interface, use the
display ip interface
brief
command.
ipv6
: Monitors the IPv6 protocol state. When the IPv6 protocol state of an interface is up, the state of
the track object is Positive. When the IPv6 protocol state of an interface is down, the state of the track
object is Negative. To display the IPv6 protocol state of an interface, use the
display ipv6 interface
brief
command.
delay
: Specifies the amount of time the Track module waits before notifying the application modules
that the track entry state has changed. If this keyword is not specified, 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 state 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 state 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 interface protocol delay
command to
modify its notification delay settings. To modify other settings, you must delete the entry and create a
new one.
Examples
# Create track entry 1, and associate it with the IPv4 protocol state of VLAN-interface 2.
<Sysname> system-view
[Sysname] track 1 interface vlan-interface 2 protocol ipv4
