Operation Manual – Multicast
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 6 IGMP Configuration
6-6
Operation Description Related section
Remove the joined IGMP
groups from the interface
Optional
Section
6.2.6 "Removing the
Joined IGMP Groups from the
Interface"
6.2.1 Configuring IGMP Version
Table 6-2 Configure IGMP version
Operation Command Description
Enter system view
system-view
—
Enable the multicast
routing protocol
multicast
routing-enable
Enable the multicast
routing protocol
Enter VLAN interface
view
interface Vlan-interface
interface-number
—
Enable IGMP on the
current interface
igmp enable
Required
IGMP is disabled on the
interface by default.
Configure the IGMP
version of the Layer 3
switch (router)
igmp version { 1 | 2 }
Optional
IGMP version 2 is used by
default.
Caution:
IGMP versions cannot be switched to one another automatically. Therefore, all the
Layer 3 switches on a subnet must be configured to use the same IGMP version.
6.2.2 Configuring IGMP Query Packets
I. IGMP general query packets
The Layer 3 switch sends IGMP general query packets to the connected network
segment periodically to get to know which multicast groups in the network segment
have members according to the returned IGMP report packets. The multicast router
also sends query packets periodically. When it receives the IGMP join packets of a
group member, it will refresh the membership information of the network segment.
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