Ring Topology Application - ZyXEL Communications IES-5000 Support Notes

Ring Topology Application

A ring topology provides network redundancy. This means that when a link is down,
the entire network can still be up as traffic is forwarded through another route or
gateway. However, to prevent network loops in a ring topology, you must enable
RSTP/STP on the network. The following figure shows a ring network example.
PC
IES2000
ADSL/SHDSL
modem
Setting up a Ring Environment
This section shows you how to set up a ring network using an IES-5000, IES-2000
and an ES-4024 switch. The computers should be able to connect to each other even
though an uplink connection is down. The following sections describes the
configuration steps in detail.
1. IES-5000 settings
1.1 Activating Spanning Tree protocol on Ethernet Ports
Before you set up the ring topology, enable spanning tree protocol on the Ethernet
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Network
Port2
Uplink1
Uplink2
PC
IES-5000 Support Notes
switch
IES-5000
Port1
ALC-1248G
Uplink1
SLC-1248G
Uplink2
ADSL/SHDSL
modem
PC
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