H3c-technologies H3C S3100V2 Series Switches Uživatelský manuál stáhnout pdf (Strana 60)

Figure 19 Port-based multicast VLAN

After the configuration, upon receiving an IGMP message on a user port, Switch A tags the message with

the multicast VLAN ID and relays it to the IGMP querier, so that IGMP snooping can uniformly manage

the router ports and member ports in the multicast VLAN. When forwarding multicast data to Switch A,

Router A needs to send only one copy of multicast traffic to Switch A in the multicast VLAN, and Switch

A distributes the traffic to all member ports in the multicast VLAN.

NOTE:

• For more information about IGMP snooping, router ports, and member ports, see the chapter “IGMP

snooping configuration.”

• For more information about VLAN tags, see the

Layer 2—LAN Switching Configuration Guide

Multicast VLAN configuration task list

Complete the following tasks to configure multicast VLAN:

Task Remarks

Configuring user port attributes Required

Configuring multicast VLAN ports Required

Configuring port-based multicast VLAN

When you configure port-based multicast VLAN, you need to configure the attributes of each user port

and then assign the ports to the multicast VLAN.

NOTE:

• A user port can be confi

ured as a multicast VLAN port when if it is of the Ethernet or Layer 2 a

ate

interface type.

• In Ethernet interface view and Layer 2 aggregate interface view, the configuration is effective only on

the

current interface. In port group view, the configuration is effective on all

ports in the current port

roup.

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H3c-technologies H3C S3100V2 Series Switches Uživatelský manuál Strana 60