Stacking Guidelines - Allied Telesis x950 Series Installation Manual

Stacking Guidelines

Here are general stacking guidelines:
AlliedWare Plus v5.4.8-2 or later supports stacks of two switches.

AlliedWare Plus v5.4.9 or later supports stacks up to four switches.

AlliedWare Plus v5.4.9-2.3, v5.5.0 or later supports stacks up to

eight switches.
Note
Instructions later in this guide explain how to view the version
number of the operating software on the switches.
The VCStack feature comes standard with the AlliedWare Plus

operating software. No additional software or license is required.
The default setting for the VCStack feature on x950 Switches is

disabled. Enabling it requires rebooting the switch. Instructions
later in this guide explain how to enable the feature and reboot the
unit.
A stack can have x950-28XSQ, x950-28XTQm, and x950-52XSQ

switches.
The switches must have the same optional features licenses. If you

purchased optional features for the switches, you should install
them before assembling the stack.
The switches of a stack have to be connected together with a

network link called a stack trunk. As explained in "Stack Trunks" on
page 74, you can choose any ports on the switches to be the trunk.
Once ports are designated as members of the trunk, they cannot
be used as regular networking ports.
You should not pre-configure the features of the switches, such as

virtual LANs and spanning tree, before building the stack. The
configuration settings are likely to be discarded once the switches
begin operating as a stack.
x950 Series Installation Guide for VCStack
73