In this chapter, we will focus on ADSL modem interoperability and DSLAM reliability testing. The interoperability test is used to perform the reliability test. In this test, we use a single modem against different ports of DSLAM to check the performance of each port. This provides information on how reliable DSLAM ports are in the broadband network. We will also focus on wireless-related tests and the emerging WiMax technology.

Chapter Contents:

• 18.1 Testing Tools for ADSL Interoperability Tests
• 18.1.1 Description of Test Equipment
• 18.2 Test Methods
• 18.2.1 DSLAM Configuration
• 18.2.2 LIM Port Configuration
• 18.2.3 Trunk Port Configurations
• 18.2.4 New Connection Setup
• 18.2.5 Configuration of Wire Line Simulator (WLS)
• 18.2.6 Traffic Generator Configuration (SMB 200)
• 18.3 Telephone Subscriber Loop Environment
• 18.4 Broadband Fixed Wireless Access Networks
• 18.4.1 Point-to-Multipoint Broadband Fixed Wireless Access Networks
• 18.4.2 WiMAX Technology
• 18.4.3 Wireless Applications Test
• 18.5 Wireline Broadband Technology Testbed
• 18.5.1 Digital Subscriber Line (DSL)
• 18.5.2 Broadband Power Line Communications Testbed
• 18.6 Fault-Tolerant Operations
• 18.6.1 Broadband LANs
• 18.6.2 Fault-Tolerant Designs for Wireless Broadband Networks
• 18.6.3 Fault-Tolerant Design Solutions for Broadband Telecommunication Systems
• 18.7 Next-Generation SONET Testing
• Summary
• Review Questions
• Problems

Inspec keywords: fault tolerance; open systems; WiMax; digital subscriber lines; modems; multiplexing equipment; telecommunication network reliability; broadband networks

Other keywords: interoperability test; DSLAM reliability testing; network testing; broadband network; asymmetric digital subscriber lines; DSLAM ports; ADSL modem interoperability; WiMax technology; fault tolerance; DSL access multiplexer

Subjects: Computer communications; Metropolitan area networks; Subscriber loops; Networking equipment; Switching centres and equipment; Modems