1-12CHAPTER 1: INTRODUCTION

Dual-Homing/ModuleFigure 1-6 illustrates the dual-homing/module redundancy configuration Redundancy of two ATM Backbone SwitchModules with redundant ATM OC-3

Configuration cards.

 

ATM Backbone

 

SwitchModules

Ethernet or FDDI

 

SwitchModule

 

Primary

Primary

ATM OC-3

ATM OC-3

LECs 1 to 32

LECs 33 to 64

Redundant

Redundant

ATM OC-3

ATM OC-3

LECs 1 to 32

LECs 33 to 64

ELANs 1 to 64

ELANs 1 to 64

 

NNI

ATM Switch A

ATM Switch B

Figure 1-6Example Dual-Homing/Module Redundancy Configuration

The LECs in the example configuration of Figure 1-6 can be manually distributed between the two ATM Backbone SwitchModules in any combination.

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3Com 5000 ATM manual Configuration cards, 6Example Dual-Homing/Module Redundancy Configuration