Core And Metro Networks Pdf
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Find out everything you need to know about how current networks will have to evolve to provide for future broadband services In this book, the authors provide an overview of the status, challenges, architectures, and technological solutions for core and metropolitan networks.
Summary: This volume offers the reader advice on how to achieve new generation features with enhanced SONET and multi-lambda rings, compares SONET features and services with rival Ethernet-based offerings, and offers design approaches and business models for real-world deployment. The textbook focuses on the strategic issues facing the retail industry and provides a current, informative, 'good read' for students.
Core And Metro Networks
The books will provide timely and reliable information about the state-of-the-art to researchers, advanced students and development engineers in the Telecommunications and the Computing sectors. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by the UK Copyright, Designs and Patents Act , without the prior permission of the publisher. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. Designations used by companies to distinguish their products are often claimed as trademarks. All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners.
In telecommunications, the core network is the central element of a network that provides services to customers who are connected by the access network. There are a number of services that the core network provides, but one of the main functions is to route telephone calls across the PSTN public switched telephone network. For enterprise backbone network, Gigabit Ethernet or 10 Gigabit Ethernet technologies are also often used. Core nodes offer the highest level of aggregation in a service provider network aggregation applies to various methods of combining multiple network connections in parallel in order to increase throughput beyond what a single connection could sustain, and to provide redundancy in case one of the links should fail. Equipment within the core network has the function to decide whether the user requesting a service from the telecom network is authorized to do so within this network or not.
Core And Metro Networks
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Find out everything you need to know about how current networks will have to evolve to provide for future broadband services In this book, the authors provide an overview of the status, challenges, architectures, and technological solutions for core and metropolitan networks. Furthermore, the book describes the current state of core and metropolitan telecommunication networks, as well as the drivers and motives behind the current paradigm shift in the telecommunications industry. Moreover, the authors elaborate system design guidelines for both point-to-point and multi-hop optical networks taking into consideration the analogue nature of the transmission channel.
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A backbone or core network is a part of a computer network which interconnects networks, providing a path for the exchange of information between different LANs or subnetworks. Normally, the backbone's capacity is greater than the networks connected to it. A large corporation that has many locations may have a backbone network that ties all of the locations together, for example, if a server cluster needs to be accessed by different departments of a company that are located at different geographical locations. The pieces of the network connections for example: ethernet, wireless that bring these departments together is often mentioned as network backbone.
Figure 1. The Cisco ONS provides superior flexibility in designing next-generation metro networks. The Cisco ONS uses the proven architecture and operating software of the Cisco ONS , allowing service providers the opportunity to dramatically simplify their metro networks and realize immediate cost, space, and operational benefits. All rights reserved. This document is Cisco Public Information.
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