Configuring basic functions of igmp snooping, Configuration prerequisites, Enabling igmp snooping – H3C Technologies H3C S5120 Series Switches User Manual
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2-7
Task
Remarks
Proxying
Configuring a Source IP Address for the IGMP
Messages Sent by the Proxy
Optional
Configuring a Multicast Group Filter
Optional
Configuring the Function of Dropping Unknown
Multicast Data
Optional
Configuring IGMP Report Suppression
Optional
Configuring Maximum Multicast Groups that Can
Be Joined on a Port
Optional
Configuring 802.1p Precedence for IGMP
Messages
Optional
Configuring an IGMP
Snooping Policy
Configuring Multicast Group Replacement
Optional
z
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.
z
Configurations made in IGMP snooping view are effective for all ports; configurations made in
Ethernet interface view are effective only for the current port; configurations made in Layer 2
aggregate interface view are effect 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 Ethernet
interface view, Layer 2 aggregate interface view or port group view.
z
For IGMP snooping, configurations made on a Layer 2 aggregate interface do not interfere with
configurations made on its member ports, nor do they take part in aggregation calculations;
configurations made on a member port of the aggregate group will not take effect until it leaves the
aggregate group.
Configuring Basic Functions of IGMP Snooping
Configuration Prerequisites
Before configuring the basic functions of IGMP snooping, complete the following task:
z
Configure the corresponding VLANs.
Before configuring the basic functions of IGMP snooping, prepare the following data:
z
Version of IGMP snooping.
Enabling IGMP Snooping
Follow these steps to enable IGMP snooping: