Summary

This Supplement describes the technical guidelines for the deployment of IP multicast technologies for IPTV content delivery. The deployment guidelines identify the technical issues and considerations regarding the capabilities of IP multicast from the perspective of supporting the IPTV services.


Table of contents

1              Scope. 5

2              References 5

3              Definitions 6

3.1......... Terms defined elsewhere. 6

3.2......... Terms defined in this Supplement 6

4              Abbreviations and acronyms 7

5              Conventions 8

6              Overview.. 8

7              IP multicast capabilities and issues related to IPTV content delivery. 8

7.1......... Multicast data delivery. 8

7.2......... Multicast group management 9

7.3......... QoS control 9

7.4......... Security. 10

8              Deployment guidelines for data delivery. 10

8.1......... IP multicast models for IPTV.. 10

8.1.1...... Any source multicast 10

8.1.2...... Source-specific multicast 11

8.2......... Multicast routing protocols 12

8.3......... Routing policy for IPTV multicast interoperability. 13

8.3.1...... Topology requirements 13

8.3.2...... MBGP policy. 14

9              Deployment guidelines for group management 14

9.1......... IPTV multicast address management 14

9.1.1...... IP multicast address transition. 14

9.1.2...... Control of users’ multicast address 15

9.1.3...... IPTV channel domain name management function for IPTV service providers 16

9.1.4...... IPTV multicast address allocation. 17

9.2......... IGMP policy. 17

9.2.1...... Different versions of IGMP and MLD.. 17

9.2.2...... Transparent IGMP snooping. 18

9.2.3...... IGMP proxy. 18

9.2.4...... Fast leave / immediate leave. 19

9.3......... IPTV multicast user management 19

10           Deployment guidelines for QoS control 20

10.1....... Types of IPTV multicast QoS. 20

10.2....... End-to-end multicast QoS guarantee policy. 21

10.2.1.... Inbound/outbound QoS policy. 21

10.2.2.... Policing of multicast & unicast traffic based on contract 21

10.3....... QoS-aware topology for IPTV multicast service. 21

10.3.1.... Optimal RP positioning and RP redundancy. 21

10.3.2.... Load balancing of IPTV multicast 22

10.3.3.... Multiple multicast trees of IPTV multicast 22

10.4....... High availability. 22

10.5....... Quality measurement of IPTV services 23

11           Deployment guidelines for security. 25

11.1....... Rendezvous Point security. 25

11.2....... PIM router security. 26

11.3....... Last mile PIM router security. 26

11.4....... Security policy over multicast exchange peers 26

12           Security considerations 27

Bibliography. 28