Configuring 10-Gbps stacking ports on the ICX 7450

By default, the ICX 7450 uses 40-Gbps ports in slots 3 and 4 as stacking ports. When a 4X10GF module is installed in slot 2 on the front panel of an ICX 7450, 10-Gbps stacking can be configured.

NOTE
Stacking and MACsec cannot be configured on these 10 Gbps ports at the same time. Refer to Converting ICX 7450 slot 2 ports for MACsec or stacking for more information.

To configure stacking on 10-Gbps ports in a 4X10GF module installed in slot 2, change the default stacking ports as shown in the following example.

ICX7450-48F Router# configure terminal
ICX7450-48F Router(config)# stack unit 1
ICX7450-48F Router(config-unit-1)# default-ports 1/2/1 1/2/3
Reload required.  Please write memory and then reload or power cycle.
ICX7450-48F Router(config-unit-1)# write memory
Write startup-config done.
ICX7450-48F Router(config-unit-1)# end
ICX7450-48F Router# reload
When the default-ports command is issued, the following error messages may be returned if Slot 2 does not contain a 4 X 10-Gbps module.
Error - Module <module_number> is not a 4x10GF module.
Error- Module <module_number> is not present.
Error- Invalid default ports "<port_1> and <port_2>" on ICX7450.

Once the default stacking ports are configured, the configuration is written to memory, and the unit is reloaded, it is ready to join an existing stack or to be configured for stacking using secure-setup or manual stack construction.

NOTE
Automatic stack configuration (described in "Traditional stack construction methods") and unit replacement features do not work with ICX 7450 4X10GF stacking. For unit replacement to work, you must use the same model as the one you are replacing, and the new unit must be a clean unit. Refer to Brocade traditional stacking terminology for a definition of clean unit. Suppose the stack is using a 4X10GF module installed in slot 2, and you want to replace a unit. To configure the new unit with the same configuration, you must configure the default ports, write memory, and reload. As a result, the new unit is no longer a clean unit because it has startup configuration flash, and the unit replacement feature will not automatically integrate this unit into a stack. You must use secure-setup or the manual stack construction method described in Traditional stack construction methods to add the new unit to the stack. If you use the manual stack construction method, you must configure the stack suggested-id with the same ID in the replacement unit before you enable the stack.