Brocade FastIron Ethernet Switch Stacking Configuration Guide - Manual (Page 34)

device(config-unit-1)# priority 255
device(config-unit-1)# stack enable
Enable stacking. This unit actively participates in stacking
device(config-unit-1)# write memory
Write startup-config done.
Flash Memory Write (8192 bytes per dot) .Flash to Flash Done.
device(config-unit-1)# end
Unit 2
device# config t
device(config)# stack suggested-id 2
device(config)# stack enable
Enable stacking. This unit actively participates in stacking
Write startup-config done.
Flash Memory Write (8192 bytes per dot) .Flash to Flash Done.
device(config-unit-1)# end
device# config t
Unit 3
device# config t
device(config)# stack suggested-id 3
device(config)# stack unit 1
device(config-unit-1)# priority 240
device(config-unit-1)# stack enable
Enable stacking. This unit actively participates in stacking
device(config-unit-1)# end
3. Connect the devices in a stack topology. The active controller will retain its ID. The rest of the
units are assigned unique ID numbers depending on the sequence in which you connected them.
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 do not configure the optional stack
suggested-id command on each standalone unit). If you want to change stack IDs to make them
sequential, you can use secure-setup. Refer to “Renumbering stack units.”
NOTE
You can configure the stack suggested-id command in a standalone unit before configuring the
stack enable command and joining the stack. A unit is assigned the suggested ID if no other unit
has that ID.
Extended distance stacking
Because Brocade devices use Ethernet for the inter-switch stack connections the deployment options
are greatly increased. If standard copper stacking cables are used, the inter-switch connections can
be up to 5 meters, which is usually sufficient for locally distributed stacks such as in top-of-rack (ToR)
applications. For broader distribution, fiber-optic cables should be used, allowing a stack to be
deployed across multiple physical locations such as the wiring closets of an office building.
This table shows the approved optics and stacking distance combinations:
Extended distance stacking
32 FastIron Ethernet Switch Stacking Configuration Guide
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