Configuring L2 Multicast Features; L2 Multicast Overview; What Are The Multicast Bridging Features - Dell Networking 7048 Configuration Manual

Powerconnect 7000 series switch

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Configuring L2 Multicast Features

This chapter describes the layer 2 multicast features on the PowerConnect

7000 Series switches. The features this chapter describes include bridge

multicast filtering, Internet Group Management Protocol (IGMP) snooping,

Multicast Listener Discovery (MLD) snooping, and Multicast VLAN

Registration (MVR).

The topics covered in this chapter include:

Snooping Switch Restrictions

Default L2 Multicast Values

Configuring L2 Multicast Features (Web)

Configuring L2 Multicast Features (CLI)

Case Study on a Real-World Network Topology

L2 Multicast Overview

Multicast traffic is traffic from one source that has multiple destinations. The

L2 multicast features on the switch help control network flooding of Ethernet

multicast and IP multicast traffic by keeping track of multicast group

membership. It is essential that a multicast router be connected to a

PowerConnect layer 2 multicast switch for IGMP/MLD snooping to operate

properly. The presence of a multicast router allows the snooping switch to

relay IGMP reports to the router and to forward multicast data sources to the

multicast router as well as restrict flooding of multicast sources in a VLAN.

The PowerConnect 7000 Series switches support multicast filtering and

multicast flooding. For multicast traffic, the switch uses a database called the

Layer 2 Multicast Forwarding Database (MFDB) to make forwarding

Configuring L2 Multicast Features

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