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DES-7200 Configuration Guide Chapter 8 IGMP Snooping
Configuration
8-11
Note
In the SVGL mode, an IGMP Profile must be associated to specify the multicast
address range in the SVGL mode, or the configuration related to the SVGL
mode will not take effect. For the details, see the chapter of “Configuring the
Multicast Address Range in the SVGL mode”.
The layer 3 multicast-routing function cannot be enabled, or the command ip
multicast-routing cannot be executed when the running mode is SVGL.
Similarly, you cannot enter the SVGL mode when the layer 3 multicast-routing
function has been enabled.
8.2.5 Disabling IGMP Snooping
In the global configuration mode, run the following command to disable IGMP
Snooping:
Command Function
DES-7200(config)# no ip igmp
snooping
Disable the IGMP Snooping function.
DES-7200 (config)#show ip
igmp snooping
Verify the configuration.
This example disables the IGMP Snooping:
DES-7200# configure terminal
DES-7200(config)# no ip igmp snooping svgl
DES-7200(config)# show ip igmp snooping
IGMP Snooping running mode: DISABLE
SVGL vlan: 1
SVGL profile number: 11
Source port check: Disable
Source ip check: Disable
IGMP Fast-Leave: Disable
IGMP Report suppress: Disable
8.2.6 Enabling IGMP Snooping in the Specific VLAN
By default, with IGMP Snooping globally enabled, the IGMP Snooping function is
auto-enabled in all VLANs. To disable the IGMP Snooping in the specified VLAN,
run the following command.
In the global configuration mode, run the following command to disable IGMP
Snooping:
Command Function
DES-7200(config)# no ip igmp
snooping vlan num
Disable the IGMP Snooping in the specified VLAN.
By default, the IGMP Snooping in the VLAN is
enabled.
DES-7200 (config)# ip igmp
snooping vlan num
Enable the IGMP Snooping in the specified VLAN.
This example disables the IGMP Snooping in the VLAN3:
DES-7200# configure terminal
DES-7200(config)# no ip igmp snooping vlan 3
DES-7200(config)# show ip igmp snooping
IGMP Snooping running mode: IVGL
SVGL vlan: 1
SVGL profile number: 11
Source port check: Disable
Source ip check: Disable
IGMP Fast-Leave: Disable
IGMP Report suppress: Disable
vlan 1
-------------
IGMP Snooping :Enabled