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Fundamentals of EMS, NMS and OSS/BSS
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In this era where data and voice services are available at a push of a button, service providers have virtually limitless options for reaching their customers with value-added services. The changes in services and underlying networks that this always-on culture creates make it essential for service providers to understand the evolving business logi
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IV
IMPLEMENTATION GUIDELINES
Chapter 26
Socket Communication
This chapter is about the basics of network programming. It introduces the reader to the concept of writing clientâserver code. The client usually acts as the agent sourcing data to the server that listens for data from multiple clients. Out of the different techniques that are used for clientâserver programming, this chapter specifically deals with socket programming. Programming for TCP and UDP transport between client and server is also discussed.
26.1 Introduction
To complete this book on fundamentals of EMS, NMS, and OSS/BSS, it is essential to discuss the implementation basics for developing solutions using the concepts discussed in preceding chapters.
Some of the important aspects in developing management applications are:
- These applications mainly deal with the application layer. Management protocols usually lie in this layer.
- There will be multiple agents or clients running on the network elements that will collect data and send to a central server. Even for upper layers, there will be business and service level applications that take feed from multiple NMS clients.
- There are different techniques of communication based on environment. Socket-based programs, RPC-based programs, and web-based programs are quite common in implementing application interactions for management solutions.
- The specific application layer protocol is more a matter of choice based on data to be sent. For usual management operations like get, set, and trap functionalities, management protocols like SNMP or NETCONF could be used. While SNMP is the choice in most legacy solutions, the more recent applications use the power of XML and use XML-based protocols like SOAP. For other management functions like file transfer, FTP is still the most popular choice, and for alerts as mail SMTP is used.
This part of the book is intended to cover all these topics for developing management applications including a case study on the design approach to be ...
Table of contents
- Foreword
- Preface
- About the Author
- Section I - Element Management System (EMS)
- Section II - NETWORK MANAGEMENT SYSTEM (NMS)
- Section III - OPERATION/BUSINESS SUPPORT SYSTEMS (OSS/BSS)
- Section IV - IMPLEMENTATION GUIDELINES