07-IP Multicast Command Reference

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The H3C SR8800 documentation set includes 13 command references, which describe the commands and command syntax options available for the H3C SR8800 10G Core Routers.

The IP Multicast Command Reference describes multicast configuration commands for the Layer 3 multicast protocols (such as IGMP, MLD, PIM, IPv6 PIM, MSDP, MBGP, and IPv6 MBGP) and the Layer 2 multicast protocols (such as IGMP snooping, PIM snooping, IPv6 PIM snooping, MLD snooping, multicast VLAN, and IPv6 multicast VLAN).

This preface includes:

·           Audience

·           Conventions

·           About the H3C SR8800 documentation set

·           Obtaining documentation

·           Technical support

·           Documentation feedback


This documentation is intended for:

·           Network planners

·           Field technical support and servicing engineers

·           Network administrators working with the SR8800


This section describes the conventions used in this documentation set.

Command conventions




Bold text represents commands and keywords that you enter literally as shown.


Italic text represents arguments that you replace with actual values.

[ ]

Square brackets enclose syntax choices (keywords or arguments) that are optional.

{ x | y | ... }

Braces enclose a set of required syntax choices separated by vertical bars, from which you select one.

[ x | y | ... ]

Square brackets enclose a set of optional syntax choices separated by vertical bars, from which you select one or none.

{ x | y | ... } *

Asterisk marked braces enclose a set of required syntax choices separated by vertical bars, from which you select at least one.

[ x | y | ... ] *

Asterisk marked square brackets enclose optional syntax choices separated by vertical bars, from which you select one choice, multiple choices, or none.


The argument or keyword and argument combination before the ampersand (&) sign can be entered 1 to n times.


A line that starts with a pound (#) sign is comments.


GUI conventions




Window names, button names, field names, and menu items are in Boldface. For example, the New User window appears; click OK.

Multi-level menus are separated by angle brackets. For example, File > Create > Folder.






An alert that calls attention to important information that if not understood or followed can result in personal injury.


An alert that calls attention to important information that if not understood or followed can result in data loss, data corruption, or damage to hardware or software.


An alert that calls attention to essential information.


An alert that contains additional or supplementary information.


An alert that provides helpful information.


Port numbering in examples

The port numbers in this document are for illustration only and might be unavailable on your router.

About the H3C SR8800 documentation set

The H3C SR8800 documentation set includes:




Product description and specifications

Marketing brochures

Describe product specifications and benefits.

Technology white papers

Provide an in-depth description of software features and technologies.

Card datasheets

Describe card specifications, features, and standards.

Hardware specifications and installation

Compliance and safety manual

Provides regulatory information and the safety instructions that must be followed during installation.

Installation guide

Provides a complete guide to hardware installation and hardware specifications.

H3C N68 Cabinet Installation and Remodel Introduction

Guides you through installing and remodeling H3C N68 cabinets.

H3C Pluggable SFP [SFP+][XFP] Transceiver Modules Installation Guide

Guides you through installing SFP/SFP+/XFP transceiver modules.

H3C High-End Network Products Hot-Swappable Module Manual

Describes the hot-swappable modules available for the H3C high-end network products, their external views, and specifications.

Software configuration

Configuration guides

Describe software features and configuration procedures.

Command references

Provide a quick reference to all available commands.

Operations and maintenance

Release notes

Provide information about the product release, including the version history, hardware and software compatibility matrix, version upgrade information, technical support information, and software upgrading.


Obtaining documentation

You can access the most up-to-date H3C product documentation on the World Wide Web at http://www.h3c.com.

Click the links on the top navigation bar to obtain different categories of product documentation:

[Technical Support & Documents > Technical Documents] – Provides hardware installation, software upgrading, and software feature configuration and maintenance documentation.

[Products & Solutions] Provides information about products and technologies, as well as solutions.

[Technical Support & Documents > Software Download] – Provides the documentation released with the software version.

Technical support



Documentation feedback

You can e-mail your comments about product documentation to info@h3c.com.

We appreciate your comments.