Specifications

switchport backup interface
546
switchport backup interface
Specifies the primary or secondary port, and an automatic switch-back time or a
timer-based switch-back time.
Syntax
To set or change information:
switchport backup interface {gigabitethernet <IF#> | port-channel
<Channel group#>} [ preemption delay <Seconds> ] [AX2200S]
switchport backup interface {{fastethernet | gigabitethernet} <IF#> |
port-channel <Channel group#>} [ preemption delay <Seconds> ] [AX1250S]
[AX1240S]
To delete information:
no switchport backup interface
Input mode
(config-if)
Parameters
{gigabitethernet <IF#> | port-channel <Channel group#>} [AX2200S]
{fastethernet <IF#> | gigabitethernet <IF#> | port-channel <Channel group#>}
[AX1250S] [AX1240S]
Sets the secondary port. The port on which this command is set will be the primary
port. Specifiable interfaces are Ethernet and port channel.
1. Default value when this parameter is omitted:
This parameter cannot be omitted.
2. Range of values:
<IF#>: See Specifiable values for parameters.
<Channel group#>: See Specifiable values for parameters.
preemption delay <Seconds>
Sets an automatic switch-back time or a timer-based switch-back time.
Setting the time enables automatic or timer-based switch-backs.
1. Default value when this parameter is omitted:
A manual switch-back is performed by using the
select switchport backup
interface operation command.
2. Range of values:
0 (seconds): Automatic switch-back
1 to 300 (seconds): Timer-based switch-back
Default behavior
Uplink redundancy is disabled.
Impact on communication
None