Allied Telesis AT-SBx81CFC960, Installation Manual

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SwitchBlade x8112 Chassis Switch and AT-SBx81CFC960 Card Installation Guide
Section III: Building a Stack with VCStack Plus 285
Stacking Guidelines
Here are the stacking guidelines:
 The stack can have two switches.
 The switches of the stack must be the same model. The stack can
have two AT-SBx8112 chassis or two AT-SBx8106 chassis. A
stack cannot have one AT-SBx8112 chassis and one AT-SBx8106
chassis.
 The trunk that connects the two switches of the stack are built with
SFP+ transceivers in the SFP+ slots in the controller cards. The
transceivers must be from Allied Telesis.
 There cannot be any network devices, such as other switches or
media converters, between the stacking transceivers in the two
switches.
 The bandwidth of the trunk depends on the number of controller
cards and transceivers in the switches. The trunk has a bandwidth
of 40 Gbps when each switch has one controller card, and 80 Gbps
when each switch has two controller cards, For more information,
refer to “Stack Trunk” on page 275.
 The default setting for stacking is disabled.
 The switches have to be assigned ID numbers. The numbers are 1
and 2. The switches must be assigned different numbers. For more
information, refer to “Chassis ID Numbers” on page 282.
 A stack should not have more than 400 Ethernet ports.
 If both switches of the stack have two controller cards, the SFP+
slots on both the active master and inactive master controller cards
are active in linking the units together and forwarding traffic.
 The two switches of the stack must have the same OEM territory
and feature licenses.

The two switches of a stack do not share the AlliedWare Plus
operating system.