Active Switch Selection on ESW2-550x Stackable Switches
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Objective
Stacking is a process in which a user can use one switch to configure settings for a series of switches. The central switch used to configure all the settings is called the Active Switch. The Active Switch can either be chosen by the user, or automatically chosen by the computer using a series of different methods. For general stacking settings refer to Stack Setting on ESW2-550X Series Stackable Switches.
If you are unfamiliar with the terms used below, check out Cisco Business: Glossary of New Terms.
The objective of this document is to explain how to choose an Active switch on ESW2-550x Series Stackable Switches.
Applicable Devices
• ESW2-550X
• ESW2-550X-DC
Software Version
• 1.3.0.62
Active Selection Process
Step 1. Log in to the web configuration utility and choose Administration > System Mode and Stack Management. The System mode and Stack Management page opens:
The Active unit is chosen between the Active-enabled units (either unit 1 or unit 2). There are 4 different ways a Active Unit can be chosen.
- Force Active — The stack first checks to see if the user has explicitly allocated any switch in the stack to be the Active switch. If force Active is activated on a unit from the System Mode and Stack Management page as the Active unit, it remains Active even after reboot.
- System Up Time — If no switch has been allocated as the Active switch by the user the Active-enabled units in the stack (units 1 and 2 are the default candidates) compare how long the switches have been active (measured in 10 minute segments). The unit with the higher number of segments is selected as the Active unit.
- Unit ID — If both units have the same number of time segments the switch with the lowest unit ID is selected as the Active unit.
- MAC Address — If both units have the same unit ID number, the unit with the lowest MAC address is chosen as the Active unit.
Force Active is the only method in selecting an Active Switch in which the user has any input. If the user desires a certain switch to be the Active, they should explicitly do so.
Step 2. Select the switches you want to manipulate by clicking the check box at the far left-hand side of the Stack Administrative Settings Table.
Step 3. Under the Stack Unit Number drop down menu, assign the desired unit number for the switch selected.
If you want to set the switch as an Active Switch, make sure you select the option
- 1 – Force Active
- 2 – Auto Active. If you want the switches to select an Active Switch automatically select the Auto option.
Step 4. After you have made all the necessary changes click Apply and Reboot.
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