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Ruckus ICX 7750 Switch Hardware Installation Guide
47
Part Number: 53-1003900-10
Installing the Ruckus ICX 7750
Stacking Ruckus ICX 7750 switches
Stacking cables
Use QSFP+ direct attached active copper stacking cables or QSFP+ fiber optic cables to connect Ruckus ICX 7750 devices in a stack.
The copper cable lengths for 40 GbE ports are 1 meter, 3 meters, and 5 meters.
Extended distance stacking
Because Ruckus ICX 7750 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.
NOTE
The use of 40GBASE-LR4 optics for extended distance stacking is supported only in the default stacking ports (1/2/1, 1/2/4,
1/3/1, or 1/3/4). Due to the limitation on the Ruckus ICX7750-48C and the ICX7750-48F, where 40GBASE-LR4 optics are
supported only in ports 1/2/5, 1/2/6, 1/3/5, or 1/3/6, extended distance stacking is not supported for 40GBASE-LR4 optics.
shows the approved optics and stacking distance combinations.
Stack size
The Ruckus ICX 7750 supports up to 12 units in a stack. You can mix any number of Ruckus ICX 7750-26Q, Ruckus ICX 7750-48F,
or Ruckus ICX 7750-48C devices together in a stack.
Stacking topologies
Both linear and ring topologies are supported in a stack. In a linear stack topology, there is a connection between each switch that carries
two-way communications across the stack.
For example, in a three-unit stack using a linear topology, unit 1 connects to unit 2, and unit 2 connects to unit 3.
shows a supported rear panel linear stacking topology.
TABLE 9
Fiber-optic options and stacking distances
Stacking cable option
Description
Maximum stacking distance
40GBase-SR4 fiber-optic cable
40G QSFP-QSFP
100 meter
40GBase-ESR4 fiber-optic cable
40G QSFP-QSFP
300 meter (OM3 multimode fiber)
400 meter (OM4 multimode fiber)
40GBase-LR4 fiber-optic cable
40G QSFP-QSFP
10 kilometers for ICX 7750-26Q device only