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Overview 15
Rearranging Stacks
The stacking order can be changed by either removing a stack member or by rearranging the
stacking cables. The order in which stack members are arranged is established not by the
physical order of the stack members but by the Unit ID assignment. The stack
configuration is stored in stack master after the stack order is changed, and the stack is
reset.
If the PowerConnect 3324/3348 unit is removed or replaced in a stack, the stack recovers
from the disconnection as follows:
• If the stack is disconnected for more than two minutes, the entire stack no longer
forwards network traffic. Every stack member reboots and waits until the stack is
reconnected. If the unit is not replaced, the master unit constantly polls the stack.
• If the stack is reconnected in under two minutes, all units remain stacked and regain
their connection to other units within five seconds. A new stack member is connected
to the master unit but initialized according to the master unit’s configuration. If a
configuration is not stored, the device is configured with the default configuration.
Replacing Stack Members
If a stack member is replaced with a new device, the requested device ID is selected. In
addition, the previous device configuration is applied to the inserted stack member. If the
new inserted device has either more or fewer ports than the previous device, the relevant
port configuration is applied to the new stack member. For example:
• If a PowerConnect 3324 replaces a PowerConnect 3324, the new 24 10/100 BaseT
ports receive the previous 24 10/100 BaseT port configuration. Ports G1 and G2 receive
the previous device’s G1 and G2 port configuration.
• If a PowerConnect 3324 replaces PowerConnect 3348, then ports 1-24 10/100 BaseT
receive the previous device’s configuration for ports 1-24. Ports G1 and G2 receive the
previous device’s G1 and G2 port configuration.