Fastiron Stacking Distances And Optics By Device - Arris Ruckus ICX 7850 Series Configuration Manual

Building a Stack
Planning to build a stack

FastIron stacking distances and optics by device

Because Ruckus 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 in the wiring closets of an office building, or in
different buildings on a campus.
Cables that support different distances can be combined in the same stack. For example, you can use LR4 Single Mode Fiber
(SMF) optics at both ends of a stacking connection, and the maximum distance is extended to 10 kilometers. Other stacking ports
in the same stack can use other optics, such as SR4, at both ends. The maximum distance for such a connection is 100 meters.
NOTE
The same optics (for example, LR4) must be used on both ends of a connection. If the optics do not match on both
ends, the ports will not come up.
The following table shows copper and fiber-optic options approved for stacking and stacking distance combinations.
TABLE 15 Copper and fiber-optic options and stacking distances
Device Stacking port
ICX 7850 32Q: 8 X 100-Gbps or 8 X
40-Gbps stacking or
uplink on Module 3
48F/48FS: 8 X 100-Gbps
or 8 X 40-Gbps stacking
or uplink on Module 2
ICX 7750 6 X 40-Gbps
Front and rear stacking
and uplink
ICX 7650 4 X 40-Gbps stacking or
uplink, or 2 X 100-Gbps
stacking or uplink on
slot 3
50
Copper options
40 Gbps:
QSFP-QSFP passive cable:
0.5-, 1-, 3-, or 5-meter
1-, 3-, or 5-meter QSFP-QSFP
active direct-attach copper
10-meter QSFP-QSFP Active
Optical Cable (AOC)
100 Gbps:
QSFP28-QSFP28 passive cable:
1-, 3-, or 5-meter
0.5- or 1-meter passive copper
1-, 3-, or 5-meter QSFP-QSFP
active direct-attach copper
10-meter QSFP-QSFP Active
Optical Cable (AOC)
40 Gbps:
0.5- or 1-meter passive copper
1-, 3-, or 5-meter QSFP-QSFP
active direct-attach copper
10-meter QSFP-QSFP Active
3
Optical Cable (AOC)
4
100 Gbps:
1-, 3-, or 5-meter QSFP28 to
QSFP28 Passive Copper Cable
Fiber-optic options
40G-QSFP-SR4
40G-QSFP-BiDi
40G-QSFP-LM4
40G-QSFP-eSR4
40G-QSFP-LR4
40G-QSFP-ER4
100G-QSFP28-LR4-10KM, 3.5W
100G-QSFP28-CWDM4-2KM
100G-QSFP28-SR4
40G-QSFP-SR4
40G-QSFP-BiDi
40G-QSFP-LM4
40G-QSFP-eSR4
40G-QSFP-LR4
40G-QSFP-ER4
40G-QSFP+-SR4
40G-QSFP+-BiDi
40G-QSFP+-LR4
100G-QSFP28-LR4-10KM, 3.5W
100G-QSFP28-LR4L-2KM, 4W
100G-QSFP28-CWDM4-2KM
100G-QSFP28-SR4
Ruckus FastIron Stacking Configuration Guide, 08.0.90
Fiber-optic maximum
stacking distance
100 meters
140 meters
300 meters
10 kilometers
40 kilometers
10 kilometers
2 kilometers
100 meters
100 meters
140 meters
300 meters
10 kilometers
40 kilometers
100 meters
10 kilometers
2 kilometers
100 meters
Part Number: 53-1005572-01