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Chapter 7: Powering On the Stack
Powering On the Switches Simultaneously
92
If you want the switches of the stack to use their MAC addresses to
automatically assign the ID numbers during the initial power-on sequence,
all you have to do is power them on simultaneously, rather than one at a
time as in the previous procedure. Here are the steps the switches
perform:
They initialize their management software and compare their MAC
addresses.
The switch with the lowest address is designated as the master
switch of the stack.
The master switch assigns itself the ID number 1.
The master switch assigns ID numbers to the other switches.
The other switches reset and initialize their management software
again, with their new ID numbers.
This procedure assumes the following:
This is the initial power-on sequence of the stack.
You verified that VCStack is enabled on the switches, as explained
in Chapter 5, "Verifying the Status of VCStack" on page 77.
You connected the switches with stacking transceivers, as
explained in Chapter 6, "Cabling the Stacking Ports" on page 83.
All the switches are powered off.
If you want to monitor the power-on sequence, you may connect a
terminal or PC with a terminal emulator program to the Console port on
any of the switches. The messages are found in "Monitoring the
Initialization Processes" on page 97.
To have the switches automatically assign the ID numbers, perform the
following procedure:
1. Power on all the switches in the stack at the same time.
Connect the power cords to the connectors on the back panels and to
the appropriate power sources, as shown in Figure 43 on page 90.
Refer to "Power Specifications" on page 114 for the power
specifications of the switches.
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.
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