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Changes to Stacking in FastIron Release 08.0.90
No more stack default-ports configuration
stack-port 1/2/4 and keeps 1/2/1 because port 1/2/1 and port 1/3/1 satisfy the valid-stack-port set (1/2/1, 1/3/1, 6). If you
configure stack-port 1/3/4, the system removes both old stack-ports because no valid-stack-port set contains both the
ports in the new configuration, 1/2/x and 1/3/4.
•
If adding stack-port or stack-trunk configuration would cause the removal of a live stacking port or stacking trunk, the
command entry is denied. For example, suppose a unit has a live link 1/3/1 to another unit. If you were to configure
stack-port 1/2/4, it would cause the removal of 1/3/1 because the port combination (1/2/4, 1/3/1) is not contained in
any valid-stack-port set. In this case, the system prints an error message and denies the configuration as shown in the
following example.
ICX7750-26Q Router# configure terminal
ICX7750-26Q Router(config)# stack unit 1
ICX7750-26Q Router(config-unit-1)# stack-port 1/2/4
Error! It may break the link 1/3/1 -- 2/3/1.
If the link is not needed, please unplug cables and remove the configuration of both ends.
stack-port 1/2/4 would remove stack-port 1/3/1 to satisfy (1/2/1, 1/2/4, 3).
No more stack default-ports configuration
In releases prior to FastIron 08.0.90, users either had to use the factory-set default stacking ports or configure alternative default
stacking ports using the stack default-ports command; otherwise, the desired stacking ports could not be configured, and the
unit could not be discovered by the stack secure-setup utility (replaced by the stack interactive-setup utility in FastIron 08.0.90).
FastIron 08.0.90 eliminates the requirement of configuring default stacking ports. For example, you can link ICX 7750 ports on
slot 3 and use the stack interactive-setup command to build a stack without any stack default-ports configuration. In releases
prior to FastIron 08.0.90, users had to configure stack default-ports 1/3/1 1/3/4 on every ICX 7750 unit that stacked from slot 3
before running the stack secure-setup utility because the factory-set default stacking ports are 1/2/1 and 1/2/4.
Stacking ports displayed even when stacking is
not enabled
In FastIron releases prior to 08.0.90, when stacking is not enabled, the system does not display factory-default stacking ports in
show running-config command output. However, in these releases, if the stacking ports have been changed, they are displayed.
In contrast, FastIron release 08.0.90 always displays stacking ports in show running-config command output, regardless of
whether stacking is enabled or whether the stacking ports are set to factory default or have been changed.
In all FastIron releases, when stack enable is not configured, the stacking ports are available for use as data ports and may
contain any data port configuration such as tagged ports.
NOTE
FastIron release 08.0.90 corrects the difficulty of configuring stacking ports as breakout ports that was present in
previous releases.
NOTE
Beginning with FastIron release 08.0.90, any stacking port can serve as a breakout port as long as the stack enable
command is not configured. However, the stacking ports are always displayed in three-tuple format (x/y/z) even when
they have been configured as breakout ports. For example, if port 1/2/1 is a breakout port, it appears in general
configuration or show command output as 1/2/1:1; however, any output that shows the port as stack-port configuration
displays the port as 1/2/1.
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Ruckus FastIron Stacking Configuration Guide, 08.0.90
Part Number: 53-1005572-01
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