IES-5000/5005/6000 Support Notes

IES-5000/5005/6000 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.

ADSL/SHDSL

modem

 

Network

 

PC

switch

IES-5000

 

Port1

 

Port2

ALC-1248G

 

Uplink1

IES2000

SLC-1248G

Uplink1

 

Uplink2

ADSL/SHDSL

 

Uplink2

 

 

modem

PC

PC

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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ZyXEL Communications IES-5005 IES-5000/5005/6000 Support Notes Ring Topology Application, Setting up a Ring Environment