Installation Guide

Alternate stacking is not supported for X690 switches.
The stacking-support option is disabled by default for all X690 switches. For more information, see
Enabling and Disabling the Stacking-Support Option on page 252.
Table 141 summarizes stacking support for X690 switches.
Table 141: Stacking Methods for X690 Switches
Stacking Method Speed per Link (HDX) Cable Type and Lengths
SummitStack-V400 (Front panel ports 61,69) 106 Gbps 0.5 m – 5 m
QSFP28
SummitStack-V160 (Front panel ports 61,69) 42 Gbps 0.5 m – 5 m
QSFP28
ExtremeSwitching X695 Stacking
The stacking-support option is disabled by default for X695 switches. For more information, see
Enabling and Disabling the Stacking-Support Option on page 252.
Table 142: Stacking Methods for the X695 Switch
Stacking method Type or location of
dedicated stacking
ports
Speed per link
(HDX)
Cable type and lengths
ExtremeSwitching
(front panel, dedicated)
61, 62 42 Gbps 0.5m, 1.0m, 3.0m, 5.0m,
10.0m, 20.0m
QSFP
106 Gbps 0.5m, 1.0m, 3.0m, 5.0m,
10.0m, 20.0m
QSFP28
For details about the enable stacking-support command, see the ExtremeXOS 16.2 Command
Reference Guide.
Summit X770 Stacking
The stacking-support option is enabled by default for X770 switches. For more information, see
Enabling and Disabling the Stacking-Support Option on page 252.
Building Stacks
Stacking Considerations for Each Switch Model
Summit Family Hardware Installation Guide 273