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Brocade 5424 — On the bottom of the switch module.
Brocade 4100, 4900, and 7500 — On the switch ID pull-out tab located inside the chassis
on the port side on the left.
Brocade 5000 — On the switch ID pull-out tab located on the bottom of the port side of the
switch
Brocade 300, 5100, and 5300 — On the switch ID pull-out tab located on the bottom of the
port side of the switch.
Brocade 7600, 7800, and 8000 — On the bottom of the chassis.
Brocade 48000 — Inside the chassis next to the power supply bays.
Brocade DCX Backbone — On the bottom right on the port side of the chassis.
Brocade DCX-4S Backbone — On the bottom right on the port side of the chassis.
3. World Wide Name (WWN)
Use the wwn command to display the switch WWN.
If you cannot use the wwn command because the switch is inoperable, you can get the WWN
from the same place as the serial number, except for the Brocade DCX enterprise class
platform. For the Brocade DCX enterprise class platform, access the numbers on the WWN
cards by removing the Brocade logo plate at the top of the nonport side of the chassis.
For the Brocade 5424 embedded switch: Provide the license ID. Use the licenseIdShow
command to display the WWN.

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