Enabling Igmp Snooping - Cisco 4500M Software Manual

Chapter 18 Configuring IGMP Snooping and Filtering

Enabling IGMP Snooping

To enable IGMP snooping globally, perform this task:
Command
Step 1
Switch(config)# [no] ip igmp snooping
Step 2
Switch(config)# end
Step 3
Switch# show ip igmp snooping | include
This example shows how to enable IGMP snooping globally and verify the configuration:
Switch(config)# ip igmp snooping
Switch(config)# end
Switch# show ip igmp snooping
Global IGMP Snooping configuration:
-----------------------------------
IGMP snooping
IGMPv3 snooping
Report suppression
TCN solicit query
TCN flood query count
Vlan 1:
--------
IGMP snooping
IGMPv2 immediate leave
Explicit host tracking
Multicast router learning mode : pim-dvmrp
CGMP interoperability mode
Vlan 2:
--------
IGMP snooping
IGMPv2 immediate leave
Explicit host tracking
Multicast router learning mode : pim-dvmrp
CGMP interoperability mode
To enable IGMP snooping on a VLAN, perform this task:
Command
Step 1
Switch(config)# [no] ip igmp snooping vlan vlan_ID
Step 2
Switch(config)# end
Step 3
Switch# show ip igmp snooping vlan vlan_ID
OL-6696-01
Purpose
Enables IGMP snooping.
Use the no keyword to disable IGMP snooping.
Exits configuration mode.
Verifies the configuration.
: Enabled
: Enabled
: Enabled
: Disabled
: 2
: Enabled
: Disabled
: Enabled
: IGMP_ONLY
: Enabled
: Disabled
: Enabled
: IGMP_ONLY
Purpose
Enables IGMP snooping.
Use the no keyword to disable IGMP snooping.
Exits configuration mode.
Verifies the configuration.
Software Configuration Guide—Release 12.2(25)EW
Configuring IGMP Snooping
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