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Operation Manual – Multicast

H3C S3100 Series Ethernet Switches Table of Contents

Table of Contents

Chapter 1 Multicast Overview ...................................................................................................... 1-1

1.1 Multicast Overview............................................................................................................. 1-1

1.1.1 Information Transmission in the Unicast Mode....................................................... 1-1

1.1.2 Information Transmission in the Broadcast Mode................................................... 1-2

1.1.3 Information Transmission in the Multicast Mode..................................................... 1-3

1.1.4 Roles in Multicast .................................................................................................... 1-4

1.1.5 Advantages and Applications of Multicast .............................................................. 1-4

1.2 Multicast Models................................................................................................................ 1-5

1.3 Multicast Architecture ........................................................................................................ 1-6

1.3.1 Multicast Address.................................................................................................... 1-6

1.3.2 Multicast Protocols................................................................................................ 1-10

1.4 Multicast Packet Forwarding Mechanism........................................................................ 1-12

1.4.1 Implementation of the RPF Mechanism................................................................ 1-12

1.4.2 RPF Check............................................................................................................ 1-13

Chapter 2 IGMP Snooping Configuration ................................................................................... 2-1

2.1 IGMP Snooping Overview ................................................................................................. 2-1

2.1.1 Principle of IGMP Snooping.................................................................................... 2-1

2.1.2 Basic Concepts in IGMP Snooping......................................................................... 2-2

2.1.3 Work Mechanism of IGMP Snooping...................................................................... 2-3

2.2 IGMP Snooping Configuration........................................................................................... 2-5

2.2.1 Enabling IGMP Snooping........................................................................................ 2-5

2.2.2 Configuring the Version of IGMP Snooping............................................................ 2-6

2.2.3 Configuring Timers.................................................................................................. 2-7

2.2.4 Configuring Fast Leave Processing ........................................................................ 2-7

2.2.5 Configuring a Multicast Group Filter........................................................................ 2-9

2.2.6 Configuring the Maximum Number of Multicast Groups on a Port .......................2-10

2.2.7 Configuring IGMP Snooping Querier .................................................................... 2-11

2.2.8 Configuring Static Member Port for a Multicast Group ......................................... 2-12

2.2.9 Configuring a Static Router Port ........................................................................... 2-13

2.2.10 Configuring a Port as a Simulated Group Member............................................. 2-13

2.2.11 Configuring a VLAN Tag for Query Messages.................................................... 2-15

2.2.12 Configuring Multicast VLAN ................................................................................ 2-15

2.3 Displaying and Maintaining IGMP Snooping ................................................................... 2-17

2.4 IGMP Snooping Configuration Examples........................................................................ 2-18

2.4.1 Configuring IGMP Snooping ................................................................................. 2-18

2.4.2 Configuring Multicast VLAN .................................................................................. 2-20

2.5 Troubleshooting IGMP Snooping..................................................................................... 2-23

H3C S3100 8C SI User Manual

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