GS-4012F/4024 User’s Guide

CHAPTER 26

IGMP

This chapter shows you how to configure IGMP.

26.1 Overview

IGMP (Internet Group Multicast Protocol) is a session-layer protocol used to establish membership in a multicast group - it is not used to carry user data. Refer to RFC 1112 and RFC 2236 for information on IGMP versions 1 and 2 respectively.

The switch supports both IGMP version 1 (IGMP-v1) and version 2 (IGMP-v2). At start up, the switch queries all directly connected networks to gather group membership. After that, the switch periodically updates this information.

26.2 Configuring

Click IP Application, IGMP in the navigation panel to display the screen as shown next. Each entry in the table is automatically created when you configure a new IP domain in the IP Setup screen (refer to Section 7.7 on page 79).

Figure 83 IGMP

The following table describes the labels in this screen.

Table 62 IGMP

LABEL

DESCRIPTION

 

 

Active

Select this check box to enable IGMP on the switch.

 

Note: You cannot enable both IGMP snooping and IGMP at the same time.

 

Refer to the section on IGMP snooping.

Index

This field displays an index number of an entry.

Chapter 26 IGMP

172