Parameters
backup
interface
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.
tengigabit
Enter the keyword
tengigabit
if the backup port is a 10G
port.
fortyGigE
Enter the keyword
fortyGigE
if the backup port is a 40G
port.
port-channel
Enter the keywords
port-channel
if the backup port is a
static or dynamic port channel.
slot/port
Specify the line card and port number of the backup port.
Defaults
Disabled (The interface is in Layer 3 mode.)
Command
Modes
INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant
Dell Networking OS Command Line Reference Guide
.
The following is a list of the Dell Networking OS version history for this command.
Version
Description
9.2(1.0)
Introduced on the Z9500.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.5.1.0
Added support for 4-port 40G line cards on ExaScale.
8.4.1.0
Added support for port-channel interfaces (the
port-
channel number
option).
8.3.7.0
Introduced on the S4810.
8.1.1.0
Introduced on the E-Series ExaScale.
7.7.1.0
Added the
backup interface
option.
7.6.1.0
Introduced on the S-Series.
7.5.1.0
Introduced on the C-Series.
6.2.1.0
Introduced on the E-Series.
Usage
Information
If an IP address or VRRP group is assigned to the interface, you cannot use the
switchport
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.
886
Interfaces
