IP, Ethernet and MPLS

Transcription

1 IP, Ethernet and MPLS Networks Resource and Fault Management Andre Perez ISTE WILEY

2 Table of Contents Preface xi Chapter 1. Network Operation Basic concepts Layered structure LANs WANs networks Protocol architecture Addressing principles IP technology Routing The IPv4 protocol The IPv6 protocol The MPLS technology Label switching Tables in the LSR The PHP function The format ofthe MPLS header Encapsulation of a labeled packet The ICMP Ethernet technology The physical layer The data link layer 24 Chapter 2. Characterizing Quality of Service Quality of service functions Quality of network operation Availability 29

3 vi IP, Ethernet and MPLS Networks Admissibility Loss ratio Delay Jitter Classes of service Bandwidth Requirements of applications Voice Video Application and control data The service contract The "Enterprise" section The "Service" section The "Technology" section The Quality of Service report 50 Chapter 3. Transport Protocols Introduction The TCP Format ofthe TCP header Initiating and closing a connection Data transfer The slow start and congestion avoidance mechanisms The fast retransmit and fast recovery mechanisms The ECN mechanism TheUDP Format oftheudp header TheRTP Format of the RTP header TheRTCP Format of the SR message Format of the RR message TheDCCP DCCP procedure Congestion control Format of the DCCP header Options TheSCTP Format ofthesctp header Association Data transfer 73

4 Resource Fault Table of Contents vii Chapter 4. Implementing Operation Quality The architectural framework Implementation of resource management Relative QoS Guaranteed QoS Resource reservation scenarios Mechanisms associated with the user plane Load balancing Link optimization mechanisms Implementing fault management Network reconfiguration Fault detection Equipment reconfiguration 98 Chapter 5. IP Technology Management Introduction The DiffServ model The DSCP field The DiffServ architecture The IntServ model Principles of resource reservation The RSVP The ARSVP protocol Principles of aggregation The ARSVP procedure 124 Chapter 6. IP Technology Management Introduction Hot Standby Router Protocol Operating principles Format of the HSRP message Load balancing Virtual Router Redundancy Protocol Operating principles Format of the VRRP message OSPF protocol Operating principles Format of the OSPF message Restarting the OSPF protocol Border Gateway Protocol Operating principles 144

5 Resource Resource viii IP, Ethernet and MPLS Networks Format ofthebgp message Path attributes Route selection BGP restart 149 Chapter 7. MPLS Technology Management Introduction Support for DiffServ Types of virtual circuits Interaction between markings Traffic engineering Operating principles The RSVPTE protocol OSPFTE protocol 174 Chapter 8. MPLS Technology Fault Management Introduction The LDP Operating principles Format of the LDP PDU The LDP messages Restarting the LDP The RSVPTE protocol Failure detection Restarting the RSVPTE protocol The FRR mechanism Operating principles Extensions of the RSVPTE protocol Procedure of the FRR mechanism 199 Chapter 9. Ethernet Technology Management Introduction Priority management Resource reservation The bandwidth manager The SBM protocol Flow control The access network Architecture of the PON Priority management in EPON Priority management in GPON The aggregation network 224

6 Fault Table of Contents ix Chapter 10. Ethernet Technology Management Introduction The STP Operating principles Format of the BPDU message Procedure ofthe STP The RSTP Operating principles Format of the BPDU message Procedure ofthe RSTP The MSTP Operating principles Format of the BPDU message Procedure of the MSTP Link aggregation Operating principles The LACP message The Marker protocol The aggregation network Operating principles The APS protocol 248 Conclusion 251 Bibliography 255 Abbreviations 259 Index 265