About Igmp Snooping - Cisco Catalyst 4500 Series Configuration Manual

Configuring IGMP Snooping and Filtering
This chapter describes how to configure Internet Group Management Protocol (IGMP) snooping on the
Catalyst 4500 series switch. It provides guidelines, procedures, and configuration examples.
This chapter consists of the following major sections:
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To support Cisco Group Management Protocol (CGMP) client devices, configure the switch as a CGMP
Note
server. For more information, see the chapters "IP Multicast" and "Configuring IP Multicast Routing"
in the Cisco IOS IP and IP Routing Configuration Guide, Cisco IOS Release 12.1 at this location:
http://www.cisco.com/en/US/docs/ios-xml/ios/ipmulti/config_library/12-4/imc-12-4-library.html
For complete syntax and usage information for the switch commands used in this chapter, first look at
Note
the Cisco Catalyst 4500 Series Switch Command Reference and related publications at this location:
http://www.cisco.com/en/US/products//hw/switches/ps4324/index.html
If the command is not found in the Catalyst 4500 Series Switch Command Reference, it will be found in
the larger Cisco IOS library. Refer to the Cisco IOS Command Reference and related publications at this
location:
http://www.cisco.com/en/US/products/ps6350/index.html

About IGMP Snooping

This section includes the following subsections:
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OL-25340-01
About IGMP Snooping, page 25-1
Configuring IGMP Snooping, page 25-5
Displaying IGMP Snooping Information, page 25-14
Configuring IGMP Filtering, page 25-20
Displaying IGMP Filtering Configuration, page 25-24
Immediate-Leave Processing, page 25-3
IGMP Configurable-Leave Timer, page 25-4
C H A P T E R
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
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25-1