This book summarizes the key Quality of Service technologies deployed in telecommunications networks: Ethernet, IP, and MPLS. The QoS of the network is made up of two parts: fault and resource management.
Network operation quality is among the functions to be fulfilled in order to offer QoS to the end user. It is characterized by four parameters: packet loss, delay, jitter or the variation of delay over time, and availability. Resource management employs mechanisms that enable the first three parameters to be guaranteed or optimized. Fault management aims to ensure continuity of service.
Preface xi
Chapter 1. Network Operation 1
1.1. Basic concepts 1
1.2. IP technology 9
1.3. The MPLS technology 14
1.4. The ICMP 19
1.5. Ethernet technology 22
Chapter 2. Characterizing Quality of Service 27
2.1. Quality of service functions 27
2.2. Quality of network operation 29
2.3. Requirements of applications 36
2.4. The service contract 44
Chapter 3. Transport Protocols 51
3.1. Introduction 51
3.2. The TCP 52
3.3. The UDP 59
3.4. The RTP 60
3.5. The RTCP 62
3.6. The DCCP 65
3.7. The SCTP 70
Chapter 4. Implementing Operation Quality 77
4.1. The architectural framework 77
4.2. Implementation of resource management 77
4.3. Implementing fault management 96
Chapter 5. IP Technology Resource Management 101
5.1. Introduction 101
5.2.
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