Configuring Igmp Snooping; Default Igmp Snooping Configuration - Cisco 4500M Software Manual

Configuring IGMP Snooping

To determine whether or not EHT is enabled on a VLAN, use the show ip igmp snoop vlan command.
Configuring IGMP Snooping
When configuring IGMP, configure the VLAN in the VLAN database mode. (See
Note
"Understanding and Configuring
IGMP snooping allows switches to examine IGMP packets and make forwarding decisions based on their
content.
These sections describe how to configure IGMP snooping:
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Default IGMP Snooping Configuration

Table 18-1
Table 18-1 IGMP Snooping Default Configuration Values
Feature
IGMP snooping
Multicast routers
Explicit Host Tracking
Immediate-leave processing
Report Suppression
IGMP snooping learning method
1. PIM/DVMRP = Protocol Independent Multicast/Distance Vector Multicast Routing Protocol
Software Configuration Guide—Release 12.2(25)EW
18-4
Default IGMP Snooping Configuration, page 18-4
Enabling IGMP Snooping, page 18-5
Configuring Learning Methods, page 18-6
Configuring a Multicast Router Port Statical, page 18-7
Enabling IGMP Immediate-Leave Processing, page 18-7
Configuring Explicit Host Tracking, page 18-8
Configuring a Host Statically, page 18-8
Suppressing Multicast Flooding, page 18-9
shows the IGMP snooping default configuration values.
Chapter 18
VLANs".)
Default Value
Enabled
None configured
Enabled for IGMPv3; Not available for IGMPv2
Enabled for IGMPv3; Disabled for IGMPv2
Enabled
1
PIM/DVMRP
Configuring IGMP Snooping and Filtering
Chapter 10,
OL-6696-01