Creating stacking trunks on the ICX 7450

The ICX 7450 supports two stacking trunks per stack unit when the 4X10GF module in slot 2 is used for stacking.

You can configure one or two stacking trunks on an ICX 7450 stand-alone after changing default stacking ports to 1/2/1 and 1/2/3 as shown in the following example. Each stacking trunk can have two ports. Potential stacking trunks contain the stacking port and the next sequential port (1/2/1 through 1/2/2 and 1/2/3 through 1/2/4).

The following example configures two stacking trunks.

ICX7450-24P Router#
ICX7450-24P Router#
ICX7450-24P Router# configure terminal 
ICX7450-24P Router(config)# stack unit 1
ICX7450-24P Router(config-unit-1)#
ICX7450-24P Router(config-unit-1)# default-ports 1/2/1 1/2/3
Reload required.  Please write memory and then reload or power cycle.
ICX7450-24P Router(config-unit-1)#
ICX7450-24P Router(config-unit-1)# stack-trunk 1/2/1 to 1/2/2
ICX7450-24P Router(config-unit-1)# stack-trunk 1/2/3 to 1/2/4
ICX7450-24P Router(config-unit-1)#
ICX7450-24P Router(config-unit-1)# show running-config
Current configuration:
!
ver 08.0.30q071T213
!
stack unit 1
  module 1 icx7450-24p-poe-port-management-module
  module 2 icx7400-xgf-4port-40g-module
  module 4 icx7400-xgf-4port-40g-module
  default-ports 1/2/1 1/2/3
  stack-trunk 1/2/1 to 1/2/2
  stack-trunk 1/2/3 to 1/2/4
!

ip dns domain-list englab.brocade.com
ip dns server-address 10.31.2.10
!
ICX7450-24P Router(config-unit-1)# exit
ICX7450-24P Router(config)# write memory
  memory     To startup config file
ICX7450-24P Router(config)# write memory 

There is no startup config file, unable to save legacy config 

ICX7450-24P Router(config)# Flash Memory Write (8192 bytes per dot) .
Write startup-config done.
Copy Done.
ICX7450-24P Router(config)# exit
ICX7450-24P Router# reload
Are you sure? (enter 'y' or 'n'):

NOTE
Default ports 1/3/1 and 1/4/1, which are 40-Gbps ports on the rear panel of the ICX 7450, do not support stacking trunks.

Creating stacking trunks on live stacks

Use the multi-stack trunk command to add or remove a stacking trunk on a live ICX 7450 stack. The following example creates two stacking trunks.

device# configure terminal
device(config)# stack unit 1
device(config-unit-1)# multi-stack-trunk 1/2/1 to 1/2/2 and 2/2/1 to 2/2/2
device(config-unit-1)# end
device(config)# end
device#
NOTE
You can use the multi-stack-port command to create individual ports on a live stack. Available ports on slot 2 are 1/2/1 and 1/2/3.