rear-module

Defines the operating mode of ports on the rear module.
Syntax
rear-module { stack-40g | uplink-100g | uplink-40g}
no rear-module { stack-40g | uplink-100g | uplink-40g}
Command Default

By default, the rear module is used for stacking with two 100-Gbps ports.

Parameters
stack-40g
Configures the rear module for stacking with four 40-Gbps ports.
uplink-100g
Configures the rear module for two 100-Gbps uplink ports.
uplink-40g
Configures the rear module for two 40-Gbps uplink ports.
Modes

Global configuration mode

Usage Guidelines

The command applies to ICX 7650 devices only.

Use the no form of the command to return the module to default operation.

100-Gbps and 40-Gbps operation require different optics. If optics do not match the configuration, the port link is down.

Local and remote ports connected through the rear module must operate in the same mode.

The rear-module command stacking options are allowed only when no uplink configuration is present on the rear module.The rear-module command cannot be used to configure uplink ports once the stack is formed. Refer to the FastIron Stacking Configuration Guide for information on enabling stacking or removing configuration.

You are, however, allowed to enter stacking configuration while the rear module operates in uplink mode. The stacking configuration remains offline, and stacking election is blocked. Once you enter the write memory command, the system prompts you to save or erase the stacking configuration.

You must execute the write memory and reload commands for any change to the rear-module setting to take effect.

Examples

The following example configures the rear module to operate in 40-Gbps stacking mode.

device# configure terminal
device(config)# rear-module stack-40G
device(config)# exit
device# write memory
device#  reload

The following example returns the rear module to 100-Gbps stacking mode (the default).

device# configure terminal
device(config)# no rear-module stack-40G
device(config)# exit
device# write memory
device#  reload
History
Release version Command history
08.0.70 This command was introduced.