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Telefocus’05

RING ARCHITECTURE

Aggregation

      Ring

2 Fiber SM G.652

Core Switch

Collector

Ring

Advantage

Low Cost

Simple Architecture

Disadvantage

Hub – Potential Single Point failure

Target Application

Towards Access and Low Capacity Core

Advantage

Highly Reliable

Disadvantage

High Cost Solution.

Target Application

High Capacity Core

Single Homed

Dual Homed

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