Build Basic Stacks - Extreme Networks ExtremeSwitching 5420 Series Installation Manual

Build Basic Stacks

Figure 33: Switches Connected to Form a Stack
Using the SummitStack feature—part of the Switch Engine Edge license—a stack can
combine switches from different 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 Different Series
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
Build Basic Stacks
A stack can be created in either of two ways:
•
native stacking , switches are connected using either designated Ethernet data
In
ports or dedicated stacking connectors.
•
alternate stacking , switches are connected using 10-Gbps Ethernet data ports that
In
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.
When planning and building your stack, be sure to follow port compatibility and
cabling recommendations as described in this chapter.
Slot Numbers in Stacks
A switch stack can be thought of as a virtual chassis. Each switch (node) operates as if
it were occupying a slot in a chassis and is controlled by the primary. The high-speed
stacking links function like the backplane links of a chassis.
56 ExtremeSwitching 5420 Series Hardware Installation Guide
on page 67 for information about which
Extreme Networks GTAC Knowledge
Build Stacks
Base.