Selecting Stacking Cables
Depending on the switch model and the number and type of stacking ports, the bidirectional stacking
link provides 40 Gbps, 80 Gbps, or 160 Gbps full-duplex bandwidth.
Stacking connections using the native stacking ports require stacking cables that are specific to the
type of stacking port. These cables are available from Extreme Networks in lengths from 0.5 meter to
100 meters.
Table 79 lists the cable types that have been verified by Extreme Networks for use as stack connection
hardware, along with the switches or modules with which each type is compatible.
Caution
Use of non-recommended cables or optics could cause stack instability.
Note
You can use certain other fiber cables and optical transceivers for stacking on X590, X690,
and X870 switches. Additional configuration is required. For details, see Alternative
Configuration for Optics on X590, X690, X695, and X870 Switches on page 167.
Table 79: Available Stacking Cables for Extreme Networks Switches
Part
Number
Cable Type, Length Compatible Ports and Devices
16105 SummitStack, 5 meter 20-Gbps stacking ports on VIM-2ss on X460-G2 switches
16106 SummitStack, 0.5 meter
16107 SummitStack, 1.5 meter
16108 SummitStack, 3 meter
10202 QSFP+ to 4x SFP+ fan-out copper
cable, 26 AWG, 1 meter
X770 alternate stacking
10203 QSFP+ to 4x SFP+ fan-out copper
cable, 26 AWG, 2 meters
10304 10GBASE-CR SFP+ pre-terminated
twin-ax copper cable, 1 meter
10G stacking ports on X440-G2, X450-G2 10G, and X620
switches
10305 10GBASE-CR SFP+ pre-terminated
twin-ax copper cable, 3 meters
10306 10GBASE-CR SFP+ pre-terminated
twin-ax copper cable, 5 meters
10307 10GBASE-CR SFP+ pre-terminated
twin-ax copper cable, 10 meters
10G stacking ports on X440-G2 (48-port switches only)
and X450-G2 10G switches
10311 QSFP+ direct-attach passive copper
cable, 0.5 meter
21-Gbps stacking ports on X450-G2 switches, QSFP+ ports
on X670-G2-48x-4q switches, and QSFP+ ports on X770
switches
10312 QSFP+ direct-attach passive copper
cable, 1 meter
21-Gbps stacking ports on X450-G2 switches, QSFP+ ports
on X670-G2-48x-4q switches, and QSFP+ ports on X770
switches
Building Stacks
ExtremeSwitching and Summit Switches: Hardware Installation Guide 166
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