Cisco Catalyst 2960 Series User Manual

How to Configure IGMP Snooping and MVR
Enabling or Disabling IGMP Snooping on a Switch
When IGMP snooping is globally enabled or disabled, it is also enabled or disabled in all existing VLAN
interfaces. IGMP snooping is enabled on all VLANs by default, but can be enabled and disabled on a per-VLAN
basis.
Global IGMP snooping overrides the VLAN IGMP snooping. If global snooping is disabled, you cannot
enable VLAN snooping. If global snooping is enabled, you can enable or disable VLAN snooping.
Follow these steps to globally enable IGMP snooping on the switch:
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ip igmp snooping
4.
end
5.
copy running-config startup-config
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode. Enter your password if
prompted.
enable
Example:
Switch> enable
Step 1
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 2
Globally enables IGMP snooping in all existing VLAN
interfaces.
ip igmp snooping
Example:
Switch(config)# ip igmp snooping
Step 3
To globally disable IGMP snooping on all VLAN
interfaces, use the no ip igmp snooping global
configuration command.
Note
Returns to privileged EXEC mode.end
Example:
Switch(config)# end
Step 4
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
128
How to Configure IGMP Snooping and MVR

Cisco Catalyst 2960 Series Specifications

General

Layer	Layer 2
Power over Ethernet (PoE)	Available on some models
RAM	128 MB
Flash Memory	32 MB
MAC Address Table Size	8000
Operating Temperature	0°C to 45°C (32 to 113°F)
Ports	24 or 48 x 10/100/1000