Service Manual

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[/subport] 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
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
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.
pre-Version
6.2.1.0
Introduced on the E-Series.
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Interfaces