Creating Stacking Trunks on ICX 7450 Devices

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 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).

Note: Valid-stack-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.
Note: ICX 7450-24P devices support linear-topology trunks in a two-unit stack. In an ICX 7450-24P linear-topology trunk, you can configure ports 1/2/1 to 1/2/4 or ports 1/3/1 and 1/4/1 in one trunk. Refer to Support for two-unit stack linear-topology trunks for more information.

The following example configures two stacking trunks.

ICX7450-48P Router# show running-config
Current configuration:
!
ver 08.0.90
!
stack unit 1
module 1 icx7450-48p-poe-management-module
module 2 icx7400-xgf-4port-40g-module
module 3 icx7400-qsfp-1port-40g-module
module 4 icx7400-qsfp-1port-40g-module
stack-port 1/3/1
stack-port 1/4/1
!
ICX7450-48P Router# configure terminal
ICX7450-48P Router(config)# stack unit 1
ICX7450-48P Router(config-unit-1)# stack-trunk 1/2/1 to 1/2/2
stack-trunk 1/2/1 to 1/2/2 replaces stack-port 1/3/1 and stack-port 1/4/1
T=2m11.3: Module 2 was inited with MACSEC. Its ports cannot be stack-ports without a reload.
Reload required. Please write memory and then reload or power cycle.
ICX7450-48P Router(config-unit-1)# stack-trunk 1/2/3 to 1/2/4
T=2m24.1: Module 2 was inited with MACSEC. Its ports cannot be stack-ports without a reload.
Reload required. Please write memory and then reload or power cycle.
ICX7450-48P Router(config-unit-1)# show running-config
Current configuration:
!
ver 08.0.90
!
stack unit 1
module 1 icx7450-48p-poe-management-module
module 2 icx7400-xgf-4port-40g-module
module 3 icx7400-qsfp-1port-40g-module
module 4 icx7400-qsfp-1port-40g-module
stack-trunk 1/2/1 to 1/2/2
stack-trunk 1/2/3 to 1/2/4
!
ICX7450-48P Router(config-unit-1)# exit
ICX7450-48P Router(config)# write memory
There is no startup config file, unable to save legacy config
Flash Memory Write (8192 bytes per dot)
.
Write startup-config done.
Copy Done.
ICX7450-48P Router(config)# exit
ICX7450-48P Router# reload
Are you sure? (enter 'y' or 'n'):

Creating Stacking Trunks on Live Stacks

Use the multi-stack trunk or multi-stack port 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.