Avaya 3500 Series Installing page 25

Removing a stack unit
If you remove a unit from the stack (to operate in standalone mode), the following switch
configuration settings revert to those configured before the unit became a member of the stack:
• IP address
• Web, Telnet, and SNMP passwords
• SNMP community strings
To use the unit in standalone mode, you must change the rear-ports mode to standalone and
reboot. The rear-ports command will not appear if the unit is stacked with stacking mode
enabled.
>enable
#config t
#rear-ports mode standalone
#save config
#reboot
Stack configurations
Because stack parameters are associated with the base unit, the physical stack order depends
on the base unit position and whether you configure the stack cascade up (stack up) or cascade
down (stack down). This designation depends on the stack cabling arrangement. Avaya
recommends that you use Cascade Down configuration.
Related topics:
Cascade down
Cascade up
Cascade down
In a cascade down configuration, the base unit is located at the top of the stack. The system
automatically numbers the physical units based on the designated base unit (unit 1). The cable
connected to the Cascade Down connector of the base unit terminates in the Cascade Up
connector on the next unit in the stack, which is located below the base unit. This next unit is
designated unit 2. The stack is wired downward through the units and the system continues
to number in this manner throughout the stack. In this configuration, the base unit discovers
the stack in a cascade down (stack down) direction. The following illustration demonstrates a
typical cascade down (stack down) configuration.
on page 25
on page 26
Stack configurations
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