Configuration Guide User guide

FastIron Configuration Guide 257
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Connecting ICX 6450 and ICX 6430 devices in a stack
NOTE
For field descriptions for the show stack command, refer to “Displaying stack information” on
page 293.
Configuration notes for building a stack using the automatic setup process
• If a new unit configuration matches other unit configurations, the Active Controller gives this
unit the lowest sequential ID. For example, in a stack configuration that contains eight FCX624
configurations, but only units 1, 4 and 8 are currently active, if you place a new FCX624 unit
between units 4 and 8, the new unit will be assigned ID 5, even though it might match unused
IDs 2, 3, 5, 6, and 7, because 5 is the lowest sequential ID.
• In a ring topology, the same new unit might assume either ID if either direction produces
sequential IDs. For example, in a four-member stack where IDs 2 and 4 are reserved, a new
unit could assume either I2 or ID 4 because either ID 1,2,3 or 1, 3, 4 is sequential.
Scenario 3 - Three member IronStack
in a ring topology using the manual configuration process
NOTE
For more detailed information about configuring an FCX IronStack, refer to “FCX IronStack
configuration” on page 258
Complete the following steps to configure a three-member IronStack in a ring topology using the
manual configuration process.
1. Power on the devices. Do not connect the stacking cables at this point.
2. Assign a priority of 255 to unit 1, and a priority of 240 to unit 3 using the priority command. You
do not have to assign a priority to the third device. Enter the stack enable command on each
device. In this example, device 1 will be the Active Controller and device 2 will be the Standby
Controller.
Unit 1
Brocade# config t
Brocadeconfig)# stack unit 1
Brocade(config-unit-1)# priority 255
Brocade(config-unit-1)# stack enable
Enable stacking. This unit actively participates in stacking
Brocade(config-unit-1)# write memory
Write startup-config done.
Flash Memory Write (8192 bytes per dot) .Flash to Flash Done.
Brocade(config-unit-1)# end
Unit 2
Brocade# config t
Brocade(config)# stack enable
Enable stacking. This unit actively participates in stacking
Brocade(config)# Handle election, was standalone --> member, assigned-ID=2,
T=261285 ms.
Write startup-config done.