Name
backup — interface
Synopsis
backup interfaceinterface
no backup interfaceinterface
backup delay {enable-time
| never} {disable-time
| never} no backup delay {enable-time
| never} {disable-time
| never} backup load {enable-load
| never} {disable-load
| never} no backup load {enable-load
| never} {disable-load
| never}
Configures
A backup interface
Default
None
Description
This family of commands configures a backup interface for the current
interface. The first command, backup
interface
, specifies the
interface
to be used as the backup. The
backup interface is activated when the primary interface goes down or
reaches the load specified by the backup load
command.
The backup delay
command specifies how long the
router should wait before activating
(enable-time
) or deactivating
(disable-time
) the backup interface. Both
enable-time
and
disable-time
are in seconds. Use of the
backup delay
command allows you to prevent routing
instability if you have an intermittent interface. The keyword
never
, when used for the
enable-time
parameter, prevents the backup
interface from being activated; when used for the
disable-time
parameter, it prevents the
backup interface from being deactivated once it has been activated.
The backup load
command specifies the load on the
primary interface at which the backup interface should be activated
(enable-load
) or deactivated
(disable-load
). The load is expressed as a
percentage of the primary interface’s maximum capacity. The
keyword never
, when used for the ...
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