Optical Networks: A Practical Perspective, Second Edition
The authoritative source for information on optical networking technologies and techniques.
TABLE OF CONTENTS Optical Networks: A Practical Perspective, Second Edition
Chapter 9: Control and Management
Network management is an important part of any network. However attractive a specific technology might be, it can be deployed in a network only if it can be managed and interoperates with existing management systems. The cost of operating and managing a large network is a recurring cost and in many cases dominates the cost of the equipment deployed in the network. As a result, carriers are now paying a lot of attention to minimizing life cycle costs, as opposed to worrying just about up-front equipment costs. We start with a brief introduction to network management concepts in general and how they apply to managing optical networks. We follow this with a discussion of optical layer services and how the different aspects of the optical network are managed.
9.1 Network Management Functions
Classically, network management consists of several functions, all of which are important to the operation of the network:
-
Performance management deals with monitoring and managing the various parameters that measure the performance of the network. Performance management is an essential function that enables a service provider to provide quality-of-service guarantees to their clients and to ensure that clients comply with the requirements imposed by the service provider. It is also needed to provide input to other network management functions, in particular, fault management, when anomalous conditions are detected in the network. This function is discussed further in Section 9.5.
-
Fault management is the function responsible for detecting failures when they happen and isolating the failed component. The network...
Copyright Academic Press 2002 under license agreement with Books24x7
