DGS-3100 Series Gigabit Stackable Managed Switch CLI Manual 
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IGMP SNOOPING COMMANDS 
The IGMP Snooping commands in the Command Line Interface (CLI) are listed (along with the 
appropriate parameters) in the following table. 
 
Command  Parameter 
config igmp_snooping 
[<vlan_name 32> | all] {host_timeout <sec 60-16711450> | router_timeout <sec 
1-16711450> | leave_timer <sec 0-16711450> | state [enable | disable]}
 
config igmp_snooping 
querier 
[vlan <vlan_name 32> | all] state [enable | disable] {querier_version [IGMPv2 | 
IGMPv3]} 
config router_port  <vlan_name 32> [add | delete] <portlist> 
config 
router_port_forbidden 
<vlan_name 32> [add | delete] <portlist> 
 
enable igmp_snooping 
 
disable igmp_snooping 
 
show igmp_snooping  {vlan <vlan_name 32>} 
show igmp_snooping 
group
 
{vlan <vlan_name 32>} 
show igmp_snooping 
forwarding
 
{vlan <vlan_name 32>} 
show router_port  {vlan <vlan_name 32> | static | dynamic | forbidden} 
 
Each command is listed in detail, as follows: 
 
config igmp_snooping 
Purpose  To configure IGMP snooping on the Switch. 
Syntax 
config igmp_snooping [<vlan_name 32> | all] {host_timeout 
<sec 60-16711450> | router_timeout <sec 1-16711450> | 
leave_timer <sec 0-16711450> | state [enable | disable]} 
Description The config igmp_snooping command configures IGMP snooping 
on the Switch. 
Parameters  <vlan_name 32> − The name of the VLAN for which IGMP snooping 
is to be configured. 
all – Specifies that IGMP snooping is to be configured for all VLANs 
on the Switch. 
host_timeout <sec 60-16711450> − Specifies the maximum amount 
of time a host can be a member of a multicast group without the 
Switch receiving a host membership report. The default is 260 
seconds. 
router_timeout <sec 1-16711450> − Specifies the maximum amount 
of time a route can be a member of a multicast group without the 
Switch receiving a host membership report. The default is 300