Guidelines - Allied Telesis AT-8100L/8 User Manual

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If there is an interruption on the links on the stacking ports such that
switches become isolated from each other, the isolated switches may use
the same IP address, creating an IP address conflict on your network. This
can be minimized by using the duplex-ring topology to cable the switches.
If a stacking link fails in the duplex-ring topology, the stack automatically
reverts to the duplex-chain topology to maintain connectivity between the
switches.

Guidelines

Here are the general guidelines to building a new 8100S Series stack. For
complete installation instructions, refer to the 8100S Series Stacking
Installation Guide:
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Caution
Designating the new member as the new master switch causes the
stack to lose its configuration unless the new unit has the same
configuration file as the previous master switch.
If the ID number of the new member switch is the same as one of
the existing switches in the stack, the new member is automatically
assigned the next available ID number.
All 8100S Series switches support stacking.
A stack can have up to eight switches of one-chip models or 208
ports.
– The AT-8100S/48 and AT-8100S/48POE are two-
chip switches. If a two-chip switch is a part of a stack, it
is logically considered as two switches.
– If all switches are AT-8100S/48 and AT-8100S/
48POE, or a combination of both, the maximum
number of switches allowed on a stack is four.
The switches of a stack may be the same model or different
models. For instance, a stack can have AT-8100S/24C, AT-8100S/
48, and AT-8100S/16F8-SC switches, so long as it does not
exceed eight switches or 208 ports.
The 8100L Series switches do not support stacking.
An 8100S Series stack cannot contain other stacking devices, such
as AT-9400Ts Series switches.
The 8100S Series switches do not need any additional modules or
software for stacking.
AT-8100 Switch Command Line User's Guide
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