Allied Telesis AT-8100S/24 User Manual

Chapter 9: Adding or Removing Switches

130

Here are the guidelines to removing a member switch from the stack:



You may leave the stack powered on if it is cabled in the duplex-
ring topology, or if it is cabled in the duplex-chain topology and the 
switch to be removed is located at the end of the stack.



You should power off the stack if it is wired in the duplex-chain 
topology and the member switch to be removed is located between 
other switches.

For background information on stack topologies, refer to “Stacking 
Port Topologies” on page 55.



If you plan to replace a member switch, the new switch must be the 
same model as the switch it is replacing. Otherwise, the operations 
of the stack may be unpredictable. For instance, you should not 
replace an AT-8100S/16F8-SC Switch with an AT-8100S/24 
Switch.



Removing a member switch from an operational stack disrupts IP 
connectivity until the stack reforms. However, Layer 2 traffic is not 
disrupted.

Here are the steps to removing a member switch from an operational 
stack.

1. Power off the member switch.

2. Label and disconnect all of the network cables from the switch.

3. Label and disconnect the stacking cables.

4. To replace the switch with another switch, go to “Adding a New 

Member Switch” on page 128. Otherwise, continue with the next step.

5. Connect the stacking cables to the remaining switches.

6. Verify that the stack is operating properly. Refer to “Verifying the 

7. If you want to use the removed member switch as a stand-alone unit, 

set its ID number to 0. For instructions, refer to Chapter 5, “Assigning 
the Stack ID Numbers and Cabling the Stacking Ports” on page 79.

Refer to Chapter 8, “Troubleshooting” on page 115 if there are any 
problems.