Configuring l2 multicast features, L2 multicast overview, What are the multicast bridging features – Dell POWEREDGE M1000E User Manual

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Configuring L2 Multicast Features

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Configuring L2 Multicast Features

This chapter describes the layer 2 multicast features on the PowerConnect

M6220, M6348, M8024, and M8024-k 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:

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.

What Are the Multicast Bridging Features?

The PowerConnect M6220, M6348, M8024, and M8024-k switches support

bridge multicast filtering and bridge multicast forwarding. For Ethernet

multicast traffic, the switch uses a database called the Layer 2 Multicast

Forwarding Database (MFDB) to make forwarding decisions for packets that

arrive with a multicast destination MAC address. By limiting multicasts to

only certain ports in the switch, traffic is prevented from going to parts of the

network where that traffic is unnecessary.

NOTE:

MVR is not supported on the PowerConnect M6220.