3Com Switch 8800 Advanced Software V5 Configuration Guide

544 CHAPTER 41: IGMP SNOOPING CONFIGURATION
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■ Configurations made in IGMP Snooping view are effective for all VLANs, while
configurations made in VLAN view are effective only for ports belonging to the
current VLAN. For a given VLAN, a configuration made in IGMP Snooping view
is effective only if the same configuration is not made in VLAN view.
■ Configurations made in IGMP Snooping view are effective for all ports;
configurations made in interface view are effective only for the current
interface; configurations made in port group view are effective only for all the
ports in the current port group. For a given port, a configuration made in IGMP
Snooping view is effective only if the same configuration is not made in
interface view or port group view.
Configuring Basic
Functions of IGMP
Snooping
Configuration
Prerequisites
Before configuring the basic functions of IGMP Snooping, complete the following
tasks:
■ Configure the corresponding VLANs
■ Configure the corresponding port groups
Before configuring the basic functions of IGMP Snooping, consider the following
points:
■ Version of IGMP Snooping
■ Whether to enable the function of dropping unknown multicast data.
Enabling IGMP Snooping Follow these steps to enable IGMP Snooping:
“Configuring IGMP-Related
Functions” on page 549
“Enabling IGMP Snooping
Querier” on page 550
Optional
“Configuring IGMP
Timers” on page 550
Optional
“Configuring Source IP
Address of IGMP Queries”
on page 551
Optional
“Configuring Port Aging
Timers” on page 549
Optional
“Configuring a Multicast Group
Policy” on page 552
“Configuring a Multicast
Group Filter” on page 552
Optional
“Configuring Maximum
Multicast Groups that Can
Be Joined on a Port” on
page 553
Optional
“Configuring Multicast
Group Replacement” on
page 554
Optional
Task Remarks
To do... Use the command... Remarks
Enter system view system-view -