Extreme Networks ExtremeSwitching 5720 Series - Build Basic Stacks

Figure 16: Switches Connected to Form a Stack
Using the SummitStack feature—part of the Switch Engine Edge license—a stack can combine switches
from dierent series, provided that every switch in the stack:
• Runs in the same partition (primary or secondary).
• Runs the same version of Switch Engine.
• Includes support for stacking.
See Combine Switches from Dierent Series on page 49 for information about which switch series can
be combined to form a stack.
The following topics introduce you to the basic principles of stacking and provide recommendations for
creating stacks.
More information to answer your questions about stacking and help you plan your configuration is
available on the Extreme Networks GTAC Knowledge Base.
Build Basic Stacks
A stack can be created in either of two ways:
• In native stacking, switches are connected using either designated Ethernet data ports or dedicated
stacking connectors.
• In alternate stacking, switches are connected using 10-Gbps Ethernet data ports that have been
configured for stacking. These ports are located either on the switch itself or on option cards
installed on either the front or the rear of the switch.
Note
5720 Series switches do not support alternate stacking. Only native stacking is supported on
5720 Series switches.
When planning and building your stack, be sure to follow port compatibility and cabling
recommendations as described in this chapter.
Build Basic Stacks
Build Stacks
40 ExtremeSwitching 5720 Series Hardware Installation Guide