Connecting The Switches To Form The Stack Ring - Extreme Networks Summit X150 Series Hardware Installation Manual

Chapter 5: Building a SummitStack Configuration
On a Summit X480-24x with an installed VIM2-10G4X module, you can configure ports S3 (29) and
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S4 (30) as alternate stacking ports for the SummitStack-V feature. If you use a VIM3-40G4X module
for stacking, ports 25 and 26 are configured as the alternate stacking ports.
On a Summit X480-24x switch with no installed VIM2 module, you can configure ports 25 and 26 on
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the switch front panel as alternate stacking ports.
On a Summit X480-24x switch with installed native stacking ports on a VIM2 module, you can do
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either of the following:
- Configure both ports 25 and 26 on the switch front panel as alternate stacking ports.
- Configure one alternate stacking port on the switch front panel and use a native stacking port on
the installed VIM2 module.
Summit X650 series switches:
Summit X650 series switches must always have an installed VIM1 or VIM3 module.
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If a VIM1-SummitStack or VIM1-SummitStack256 module is installed, ports 23 and 24 on the switch
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front panel can be configured as alternate stacking ports.
If a VIM1-10G8X module is installed, ports 31 and 32 on the VIM1-10G8X module can be configured
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as alternate stacking ports.
If a VIM3-40G4X module is installed, ports 23 and 24 can be configured as the alternate stacking
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ports.
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.

Connecting the Switches to Form the Stack Ring

After you have installed the individual Summit switches (see
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
For instructions to connect specific types of stacking cables, see
page 199.
184
Chapter 6), connect the switches together
196.
"Connecting Stacking Cables" on
Summit Family Switches Hardware Installation Guide