Specifications

CHAPTER

18-1

Catalyst 2970 Switch Software Configuration Guide

78-15462-03

Configuring IGMP Snooping and MVR

This chapter describes how to configure Internet Group Management Protocol (IGMP) snooping on the

Catalyst 2970 switch, including an application of local IGMP snooping, Multicast VLAN Registration

(MVR). It also includes procedures for controlling multicast group membership by using IGMP filtering

and procedures for configuring the IGMP throttling action.

Note For complete syntax and usage information for the commands used in this chapter, refer to the switch

command reference for this release and the Cisco IOS Release Network Protocols Command Reference,

Part 1, for Release 12.1.

This chapter consists of these sections:

• Understanding IGMP Snooping, page 18-2

• Configuring IGMP Snooping, page 18-6

• Displaying IGMP Snooping Information, page 18-12

• Understanding Multicast VLAN Registration, page 18-13

• Configuring MVR, page 18-15

• Displaying MVR Information, page 18-19

• Configuring IGMP Filtering and Throttling, page 18-20

• Displaying IGMP Filtering and Throttling Configuration, page 18-25

Note You can either manage IP multicast group addresses through features such as IGMP snooping and MVR,

or you can use static IP addresses.