H3C Technologies H3C S7500E Series Switches - Manual (Page 76)

3-5
z Enable IGMP Snooping in the VLAN to be configured as a multicast VLAN
z Enable IGMP Snooping in all the user VLANs
Configuring User Port Attributes
Configure the user ports as hybrid ports that permit packets of the specified user VLAN to pass,
and configure the user VLAN to which the user ports belong as the default VLAN.
Configure the user ports to permit packets of the multicast VLAN to pass and untag the packets.
Thus, upon receiving multicast packets tagged with the multicast VLAN ID from the upstream
device, the Layer 2 device untags the multicast packets and forwards them to its downstream
device.
Follow these steps to configure user port attributes:
To do... Use the command... Remarks
Enter system view system-view —
interface interface-type
interface-number
Enter interface view or port
group view
port-group { manual
port-group-name | aggregation
agg-id }
Required
Use either command
Configure the user port link type
as hybrid
port link-type hybrid
Required
Access by default
Specify the user VLAN that
comprises the current user
port(s) as the default VLAN
port hybrid pvid vlan vlan-id
Required
VLAN 1 by default
Configure the current user
port(s) to permit packets of the
specified multicast VLAN(s) to
pass and untag the packets
port hybrid vlan vlan-id-list
untagged
Required
By default, a hybrid port permits
only packets of VLAN 1 to pass.
For details about the port link-type, port hybrid pvid vlan, and port hybrid vlan commands,
refer to VLAN Configuration Commands in the Layer 2 - LAN Switching Command Reference.
Configuring Multicast VLAN Ports
In this approach, you need to configure a VLAN as a multicast VLAN and then assign user ports
to this multicast VLAN by either adding the user ports in the multicast VLAN or specifying the
multicast VLAN on the user ports. These two configuration methods give the same result.