Extreme Networks Summit X150 Series, Hardware Installation Manual

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Chapter 5: Building a SummitStack Configuration
Summit Family Switches Hardware Installation Guide
204
Summit X670 series switches:
When ports 47 and 48 are used as alternate stacking ports, ports 45 and 46 are not available to use as
data ports.
Summit X750 series switches:
When ports 103 and 104 are used as alternate stacking ports, ports 101 and 102 are not available to
use as data ports.
Connecting the Switches to Form the Stack Ring
After you have installed the individual Summit switches (see Chapter 6 ), connect the switches together
using the stacking cables. The examples in this section show cable connections and the recommended
order for connecting ports to facilitate the easy setup configuration.
In general, it is best to connect Stack Port 2 on one switch to Stack Port 1 on the switch with the next
higher slot number. Although you can connect the switches in any order, connecting them as shown in
these examples will produce better predictability and easier software configuration. It is essential to
create an unbroken data path through all the switches in the stack.
NOTE
The connection recommendations in this section do not apply to Summit X650 series switches with
installed VIM1-SummitStack512 modules. For information about connecting the ports on the VIM1-SummitStack512
modules, see
“Using the VIM1-SummitStack512 Module” on page 215 .
For instructions to connect specific types of stacking cables, see “Connecting Stacking Cables” on
page 218 .
Using SummitStack Ports and 40G Stacking Cables
SummitStack ports are integrated into the back panel of the Summit X250e, X440, X450, X450a, and
X450e series switches. In addition, the X460, X480, and X650 series switches accommodate VIMs or
stacking modules that provide SummitStack ports. The Summit X750 can be stacked using the QSFP+
front panel ports.
The examples in this section show various physical stacking arrangements: all switches in a single rack,
switches in two adjacent racks, and switches at the tops of several racks in a row.