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Chapter 2: Virtual Chassis Stacking
68
the AT-StackXG stacking module:
High Speed Stacking Cables (0.5 meter) - StackXG/0.5
High Speed Stacking Cables (1.0 meter) - StackXG/1
The specifications for SFP+ transceivers able to be installed in the
AT-x6EM/XS2 stacking module can be found on our Allied Telesis web
site at www.alliedtelesis.com.
VCStack restrictions
There are some restrictions to what products and connections you can
combine in a single stack. In general, different switch families cannot be
stacked together and you cannot combine different stacking methods or
cables.
x610 Series switches can stack with other x610 switches and with x600
switches, as described in
”Mixed-mode VCStack (stacking x610 switches
with x600 switches)” below.
The maximum stack size is:
8, when stacking x610 Series switches
4, when stacking 600 Series with x610 Series switches
4, when stacking x600 Series switches
Mixed-mode VCStack (stacking x610 switches with x600 switches)
The x600 and x610 switches support a feature called mixed-mode
stacking. This feature allows x600 and x610 units to be stacked together
to form a single stack. Note that if a x610 switch is to be part of
mixed-mode VCStack then an AT-StackXG must be installed in the switch.
In a mixed-mode VCStack, for stack compatibility the x610 Series
switches operate as x600 Series switches, not as x610 Series switches. If
you stack x610 Series switches with x600 Series switches, note the
following restrictions:
Synchronization disabled. When mixed-mode stacking is enabled the
VCStack software auto synchronization feature is disabled because
the x600 and x610 run different software releases. When mixed-mode
stacking is disabled then the software synchronization feature is
re-enabled. For more information about VCStack software auto
synchronization refer to the Stacking Introduction and Stacking
Commands chapters in the AlliedWare Plus
Operating System
Software Reference from www.alliedtelesis.com.
Software upgrades. Because software releases are not synchronized
in a mixed-mode stack, the preferred release file must be manually
copied to each stack member and set individually. The simplest way to
do this is to 'remote-login' to each stack member and then enter the
‘boot system’ command.