ICX 7850 Stack Configuration Overview

The following table provides an overview of ICX 7850 stacking capabilities.

ICX 7850 Stacking Capability

Stacking Capability ICX 7850 Additional Information
Topologies supported Ring and linear Refer to ICX 7850 stacking topologies for more information.
Maximum stack size 12 Stacking only.
Maximum stacking distance

40 kilometers

Refer to FastIron stacking Distances and Optics by Device for more information.
ICX 7850 model combinations Allowed (all models) ICX 7850-48C, ICX 7850-48F, ICX 7850-48FS, and ICX 7850-32Q models can be combined in the same stack.
Stacking ports

8 X 100 Gbps or 8 X 40 Gbps

ICX 7850-32Q: ports 1/3/1 to 1/3/8

ICX 7850-48C/48FS/48F: ports 1/2/1 to 1/2/8

Stacking port speeds are auto-detected.

Valid-stack-port sets

ICX 7850-32Q: (x/3/1, x/3/5, 4)

ICX 7850-48C/48FS/48F: (x/2/1, x/2/5, 4)

Note: The third number in the set is the maximum number of ports in a stacking trunk. The number "1" indicates a single stack-port only.

Refer to the definition of valid-stack-port set in Stacking Terminology for more information.

Refer to ICX 7850 Stacking Topologies for port locations.

Reconfigurable ports Use the stack-port and stack-trunk commands to reconfigure ports. Stacking port speeds are auto-detected and cannot be configured.
Trunks

The following maximum stacking trunk configurations are supported:

ICX 7850-32Q: stack-trunk 1/3/1 to 1/3/4 or stack-trunk 1/3/5 to 1/3/8

ICX 7850-48C/48FS/48F: stack-trunk 1/2/1 to 1/2/4 or 1/2/5 to 1/2/8

See also "Linear-topology trunks" in this table.
Linear-topology trunks The following maximum linear-topology trunks are supported:

ICX 7850-32Q: stack-trunk x/3/1 to x/3/8

ICX 7850-48C/48FS/48F: stack-trunk x/2/1 to x/2/8

Refer to Configuring Two-unit Stack Linear-topology Trunks for more information.

Hitless switchover and hitless failover Supported Refer to Hitless Stacking.
License requirements No license required for stack-port configuration. No license required for Premium features. For more information on ICX 7850 license options, refer to the RUCKUS FastIron Software Licensing Guide.
Configuration options Manual and automatic, including stack interactive-setup and stack zero-touch provisioning Refer to Stack Construction Methods.
Access methods TFTP, SCP Software images, boot images, and signatures can be downloaded to a stack using TFTP and SCP applications. Refer to the RUCKUS FastIron Software Upgrade Guide for more information.
Stacking commands All stacking CLI is supported on ICX 7850 devices unless otherwise stated on the command reference page.