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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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