. New York: Wiley-IEEE Press, 1999. 2. Kundan Misra. OSS for Telecom Networks: An Introduction to Network Management. London: Springer, 2004. 3. Alexander Clemm. Network Management Fundamentals. Indianapolis, IN: Cisco Press, 2006. Chapter 13 NMS Products This chapter provides the reader with a basic understanding on some of the most popular network management products. This chapter is intended to give the reader practical exposure on actual network management products rather than the theo- retical aspects of network management. This chapter presents the author's under- standing of a few network management products and the content is not reviewed or endorsed by the product owners. Hence the author or publisher takes no position on the accuracy or completeness of data presented in this chapter. 13.1 Introduction There are many NMS products on the telecom market. These products can be gen- erally classified under five main types. They are: 1. NMS framework for customization: These are products that provide generic fault, performance, and other functions under the FCAPS model. It pro- vides a generic framework on which specialized applications can be created as customization for a specific requirement of the client. An example product that falls in this category would be OpenNMS. Being a generic framework, products in this category usually are developed by integrating open source products. Hence the product sells for free and clients are charged for services offered on the product like bug fixing, maintenance, and customization of the product. In addition to creating new applications on the framework, cus- tomization could also be simple look and feel changes (GUI), re-branding, license administration, or integrating multiple management solutions with the framework to offer a common GUI. Fundamentals of EMS, NMS and OSS/BSS 2. NMS package with add-ons: Products in this category are complete NMS suites with almost all the popular NMS functions. The product itself is charged and the add-ons are charged a premium. Add-