ICX 7250 stack configuration overview

The following table provides an overview of ICX 7250 stacking capabilities.

Table 6 ICX 7250 traditional stacking capability
Stacking capability ICX 7250 Additional information
Topologies supported Ring and linear Refer to ICX 7250 stacking topologies.
Maximum stack size 12 Traditional stacking only. Any combination of stackable ICX 7250 devices may be stacked.
Maximum stacking distance 10 Kilometers Refer to FastIron stacking distances and optics by device for more information.
Stacking ports Four 10-Gbps stacking ports (from eight available ports) on fixed module on front panel Module 2 on front panel contains four stacking ports and four uplink ports, which can be used as alternative ports for stacking. Refer to ICX 7250 stacking topologies for module and port locations.
Default ports

Two ports: 1/2/1 and 1/2/3

NOTE
Default stacking ports can be changed to 1/2/5 and 1/2/7. Use the default-ports command to change the default ports.
Refer to ICX 7250 stacking topologies for port locations.
Reconfigurable ports Supported

Use the stack-port command to reconfigure one stack port as a data uplink port.

Use the default-ports command to move stacking ports.

Once licensed, stacking ports come up as 10-Gbps ports automatically.

You can manually reconfigure 1-Gbps ports to 10-Gbps ports when licensed using the speed-duplex command.

Refer to Traditional stack CLI commands .
Stack trunks Supported Refer to ICX 7250 trunk configuration.
Hitless switchover and hitless failover Supported Refer to Hitless stacking.
License requirements A POD license is required for 10-Gbps ports. (Trunks cannot be formed with the pre-installed two-port license.) The pre-installed license is for two 10-Gbps ports (supports stacking ports 1/2/1 and 1/2/3). Licenses are available for eight 10-Gbps ports. Refer to the Brocade FastIron Software Licensing Guide for information.
Configuration options Manual and automatic, including Secure-setup Refer to Traditional stack construction methods.
Access methods TFTP, SCP Software images, boot images, and signatures can be downloaded to a stack using TFTP and SCP. Refer to the Brocade FastIron Software Upgrade Guide for more information.
Traditional stacking CLI All stacking CLI is available on the ICX 7250 unless otherwise noted on the command reference page. Refer to Traditional stack CLI commands .