Dell Force10 S4810P Reference Manual page 817

switchport backup interface {gigabit slot/port | tengigabit
slot/port | fortyGigE slot/port | port-channel number} command.
Parameters
backup interface
gigabit
tengigabit
fortyGigE
port-channel
slot/port
Defaults Disabled (The interface is in Layer 3 mode.)
Command Modes INTERFACE
Command History
Version 8.3.11.1
Version 8.5.1.0
Version 8.4.1.0
Version 8.3.7.0
Version 8.1.1.0
Version 7.7.1.0
Version 7.6.1.0
Version 7.5.1.0
pre-Version
6.2.1.0
Usage
If an IP address or VRRP group is assigned to the interface, you cannot use the switchport
Information
command on the interface. To use the switchport command on an interface, only the no
ip address and no shutdown statements must be listed in the show config
output.
When you enter the switchport command, the interface is automatically added to the
default VLAN.
To use the switchport backup interface command on a port, you must first enter
the switchport command. For more information, refer to the "Configuring Redundant Links"
section in the "Layer 2" chapter of the
Related
interface port-channel
Commands
show interfaces switchport
Use this option to configure a redundant Layer 2 link without using
Spanning Tree. The keywords backup interface configures a
backup port so that if the primary port fails, the backup port changes
to the up state. If the primary later comes up, it becomes the backup.
Enter the keyword gigabit if the backup port is a 1G port.
Enter the keyword tengigabit if the backup port is a 10G port.
Enter the keyword fortyGigE if the backup port is a 40G port.
Enter the keywords port-channel if the backup port is a static or
dynamic port channel.
Specify the line card and port number of the backup port.
Introduced on the Z9000.
Added support for 4-port 40G line cards on ExaScale.
Added support for port-channel interfaces (the port-channel
number option).
Introduced on the S4810.
Introduced on the E-Series ExaScale.
Added the backup interface option.
Introduced on the S-Series.
Introduced on the C-Series.
Introduced on the E-Series.
FTOS Configuration Guide .
– creates a port channel interface.
– displays information about switchport interfaces.
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