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Managing Intelligent Multicasting (Layer 2 & Layer 3)

Overview

This chapter and its procedures address both Layer 2 and Layer 3 configurations. Included in this chapter:

Introduction

Configuring Global Intelligent Multicasting

Displaying Router Ports

Configuring Static Router Ports

Searching for Intelligent Multicast Sessions

Creating a Static Multicast Session

Configuring IGMP Snooping (Layer 3 only)

Configuring the LGMP Server

Configuring/Viewing an LGMP Client

Configuring/Viewing CGMP Snooping

Introduction

Intelligent multicasting refers to the forwarding of Layer 2 multicast traffic (packets with a multicast destination MAC address) to a subset of ports participating in a VLAN. With intelligent multicasting disabled, Layer 2 multicast traffic is flooded to all ports participating in the VLAN on which the traffic is received.

Intelligent multicasting is used to limit the forwarding of Layer 2 multicast traffic to only those ports within the VLAN that have clients attached to them that want to receive this multicast traffic. Limiting this forwarding reduces the amount of traffic to ports that do not have clients wanting to receive the multicast traffic.

A multicast session is Layer 2 multicast traffic within a VLAN. The switch supports 60 sessions per VLAN. A client port is a port with an attached host configured to receive (be

Cajun P550/P220 Switch Operation Guide

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