H3C Technologies H3C S3100 Series Switches - Manual (Page 248)

Operation Manual – Multicast
H3C S3100-52P Ethernet Switch Chapter 2 IGMP Snooping Configuration
2-11
Operation Command Description
Configure the source IP
address to send general
query packets
igmp-snooping
general-query
source-ip
{ current-interface |
ip-address
}
Optional
By default, the source IP
address to send general
query packets is 0.0.0.0.
2.2.7 Configuring Multicast VLAN
In an old multicast mode, when users in different VLANs order the same multicast
group, the multicast stream is copied to each of the VLANs. This mode wastes a lot of
bandwidth.
By configuring a multicast VLAN, adding switch ports to the multicast VLAN and
enabling IGMP Snooping, you can make users in different VLANs share the same
multicast VLAN. This saves bandwidth since multicast streams are transmitted only
within the multicast VLAN, and also guarantees security because the multicast VLAN is
isolated from user VLANs.
Multicast VLAN is mainly used in Layer 2 switching, but you must make corresponding
configuration on the Layer 3 switch.
Perform the following configuration to configure multicast VLAN.
Table 2-11
Configure multicast VLAN on Layer 3 switch
Operation Command Description
Enter system view
system-view
—
Create a multicast VLAN
and enter VLAN view
vlan vlan-id
Create the multicast
VLAN to be configured.
Exit VLAN view
quit
—
Create a multicast VLAN
interface and enter VLAN
interface view
interface
Vlan-interface
vlan-id
—
Enable IGMP
igmp enable
Required
By default, the IGMP
feature is disabled.
Exit VLAN interface view
quit
—
Enter the view of the
Ethernet port connected
to the Layer 2 switch
interface interface-type
interface-number
—
Define the port as a trunk
or hybrid port
port link-type
{ trunk |
hybrid
}
Required