Changes to Stacking in FastIron
Release 08.0.90
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Valid-stack-port sets
Ruckus stacking systems support flexible stacking ports. Most platforms allow users to select stacking ports from a list of ports.
The ports that are not used as stacking ports can be used as data ports. The stacking port selection cannot be arbitrary. It must
follow rules that respect the defined valid-stack-port set (a/b/c, a/b/d, n), where a/b/c and a/b/d are the starting ports of two
directions, and n is the maximum number of ports in a stacking trunk. Some platforms support multiple valid-stack-port sets.
Ruckus supports linear or ring topologies. A unit has one direction (in a typical linear topology) or two directions (in a ring). Each
direction contains one or multiple stacking ports. The command stack-port unit/slot/port contains one port, and the command
stack-trunk unit/slot/port to unit/slot/port uses multiple contiguous ports.
In FastIron 08.0.90 or later, you must observe the following rules to configure the stack-port or stack-trunk command related
to the valid-stack-port set.
NOTE
The examples given apply to ICX 7750 devices. Valid-stack-port sets for different ICX models differ and are provided in
the stacking overview for each device. Every ICX 7750 device has six valid-stack-port sets. The three most common sets
are (x/2/1, x/2/4, 3), (x/3/1, x/3/4, 3), and (x/2/1, x/3/1, 6), where x represents a stack ID, and the third number in each set
specifies the maximum number of ports in a stacking trunk.
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A stack-port must be a port in the valid-stack-port set. For example, the configuration stack-port 1/2/4 is allowed, but
stack-port 1/2/2 is not allowed.
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A stack-trunk must contain contiguous ports starting from one port in the valid-stack-port set. For example, the
configuration stack-trunk 1/3/1 to 1/3/5 satisfies the valid-stack-port set (x/2/1, x/3/1, 6), but the configuration stack-
trunk 1/3/2 to 1/3/4 is invalid.
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The number of ports in a stack-trunk configuration cannot exceed the number defined in the valid-stack-port set.
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The stack-port and the stack-trunk configuration for a unit must originate from the same valid-stack-port set. For
example, the configuration stack-port 1/2/1 and stack-trunk 1/3/1 to 1/3/6 satisfies the valid-stack-port set (1/2/1,
1/3/1, 6). The configuration stack-port 1/2/1 and stack-port 1/3/4 is invalid because the two stacking ports originate in
different valid-stack-port sets.
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Adding stack-port or stack-trunk configuration may cause the removal of existing stack-port or stack-trunk
configuration if the new configuration is not contained in the same valid-stack-port set. For example, suppose a unit
configuration contains stack-port 1/2/1 and stack-port 1/2/4. If you configure stack-port 1/3/1, the system removes
Ruckus FastIron Stacking Configuration Guide, 08.0.90
Part Number: 53-1005572-01
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Summary of Contents for ICX 7650-48P
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