Installation Guide

Figure 40: Daisy Chain Topology
You might need to use a daisy chain topology while adding a new node, removing a node, or joining two
stacks.
If you are using a daisy chain topology, the possibility of a dual master condition increases. Before you
create a daisy chain topology, read "Managing a Dual Master Situation" in the ExtremeXOS 31.1 User
Guide.
SummitStack Terms
Table 20 describes the terms used for the SummitStack feature. These terms are listed in the
recommended reading sequence.
Table 20: List of Stacking Terms
Term Description
Stackable switch An ExtremeSwitching switch that provides two stacking ports and can
participate in a stack.
Stacking port A physical interface of a stackable switch that is used to allow the
connection of a stacking link. Stacking ports are point-to-point links that
are dedicated for the purpose of forming a stack.
Native stacking A stacking configuration in which stack members are connected using
either designated Ethernet data ports or dedicated stacking connectors.
Alternate stacking A stacking configuration in which stack members 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
the rear of the switch.
Building Stacks SummitStack Terms
ExtremeSwitching 5520 Series Hardware Installation Guide 57