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PowerConnect B-Series FCX Configuration Guide 109
53-1002266-01
Building an IronStack
5
For more information about cabling the devices, refer to the appropriate hardware installation
guides.
NOTE
This method does not guarantee sequential stack IDs. If you want to change stack IDs to make them
sequential, you can use secure-setup. Refer to “Renumbering stack units” on page 149.
Configuring an FCX IronStack
Every PowerConnect B-Series FCX-S device contains two default 16 Gbps stacking ports on the rear
panel and two 10 Gbps ports on the front panel that can also be used as stacking ports.
NOTE
PowerConnect B-Series FCX-I and PowerConnect B-Series FCX-E devices can only be used for
stacking if they have an optional 10 Gbps SFP+ module installed in the front panel. These devices
do not have stacking ports on the rear panels.
An PowerConnect B-Series FCX IronStack may contain up to eight 24-port and 48-port devices,
using any combination of the rear panel stacking ports and the front panel optional stacking ports.
For PowerConnect B-Series FCXs devices, to use ports other than the factory-default 16 Gbps ports,
you must define the ports for each device in the run time configuration. You can also configure the
16 Gbps ports to operate as 10 Gbps ports. See “Configuring PowerConnect B-Series FCX stacking
ports” on page 109.
An PowerConnect B-Series FCX “clean unit” may contain a default port configuration, but it is still
considered a clean unit. To preserve this state, do not do a write memory on the unit before you
build the stack. An PowerConnect B-Series FCX device with the default port configuration is still
considered a clean unit. To ensure that the device remains a clean unit, do not do a write memory
on the device. (Write memory adds a startup-config, and the device is no longer a clean unit.)
NOTE
The automatic setup process will not work for PowerConnect B-Series FCX devices that do not
contain the default port information in their clean unit configurations.
Configuring PowerConnect B-Series FCX stacking ports
PowerConnect B-Series FCX-S devices have two 10 Gbps ports on the front panel and two 16 Gbps
ports on the rear panel. All of these ports may be used as stacking ports, however the non-default
ports must be configured as stacking ports when setting up your PowerConnect B-Series FCX-S
IronStack.
PowerConnect B-Series FCX-I and PowerConnect B-Series FCX-E devices do not have 16 Gpbs ports
on the rear panel. These devices may be used in an IronStack by installing the 10 Gbps 4-port SFP+
module in the module slot on the front panel. Once you have installed one of these modules, ports
1 and 2 act as the default stacking ports. However, you can also use these ports to pass regular
traffic, after disabling the stacking default. See “Changing default stacking port configurations” on
page 112.