Chapter 3 | Installation |
10.Connect the cable’s other end to port G2 on Unit 6.
11.Connect one end of a Category 5e Ethernet network cable to port G1 on Unit 6.
12.Connect the cable’s other end to port G2 on Unit 1.
For a stack with less than 6 switches, the steps are similar except that port G1 of the last switch in the stack must be connected back to port G2 of the first switch in the stack.
The following is an example of setting up a stacked configuration using three SLM248G4S switches.
1. Connect port G1 on Unit 1 to port G2 on Unit 2.
Connect Unit 1 to Unit 2
2. Connect port G1 on Unit 2 to port G2 on Unit 3.
Connect Unit 2 to Unit 3
3. Connect port G1 on Unit 3 to port G2 on Unit 1.
Connect Unit 3 to Unit 1
For detailed information on switch stacking, refer to “Appendix B: About Switch Stacking.”
For more information on stack configuration using the Console Interface, refer to “Stack Configuration” and “System Mode” in “Chapter 4: Configuration Using the Console Interface” .
For more information on stack configuration using the
Reassigning a Slave Unit as the Master Unit
You can reassign a slave unit so that it becomes the master unit. To do this, you swap their unit numbers. For example, to make slave unit 5 be the master, you change the master’s unit number from 1 to 5 and the slave’s unit number from 5 to 1. To change the unit numbers, you can use either the
The following describes the procedure for changing a slave unit into the master unit. In this example, unit 5 is made the master unit.
1.Swap the unit numbers. That is, change the unit number of the current master from 1 to 5, and change the unit number of slave unit 5 from 5 to 1. (The order in which these are performed is not significant.)
2.Power off the new unit 5 (the former master unit).
3.Power off the new master unit 1 (the former slave unit 5) briefly, then power it on again.
4.Power up the new unit 5.
NOTE: If unit 2 (the backup master) is made the master unit, steps 2 through 4 can be skipped.
Replacing a Stacked Switch
To replace one switch in a stack with another switch without having to reboot or power down the stack:
1.Run the
2.Go to the Setup > Stack Configuration screen.
3.Make sure that the Stacking Ports After Reset setting matches the type of stacking ports (Copper Ports or Combo Ports) that are used to connect the switches.
4.Verify that the Unit No. After Reset settings specify the correct unit number for the switch being replaced.
5.Click Save Settings to save the stack settings.
6.Disconnect the switch being replaced, then connect the new switch using the same stacking ports (copper or combo) as before.
The stack should continue to operate as before.
