DES-3000 Series Layer 2 Switch CLI Reference Manual 
 
config igmp_snooping 
Purpose  Used to configure IGMP snooping on the Switch. 
Syntax 
config igmp_snooping [vlan_name <vlan_name 32> | all] 
{host_timeout <sec 1-16711450> | router_timeout <sec 1-16711450> | 
leave_timer <sec 1-16711450> | state [enable | disable] | fast_leave 
[enable | disable]} 
Description  This command allows the user to configure IGMP snooping on the Switch. 
Parameters 
vlan_name <vlan_name 32> − The name of the VLAN for which IGMP 
snooping is to be configured. 
all – Selecting this parameter will configure IGMP for all VLANs on the 
Switch. 
host_timeout <sec 1-16711450> − 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 260 seconds.   
leave_timer <sec 1-16711450> − Leave timer. The default is 2 seconds. 
state [enable | disable] − Allows the user to enable or disable IGMP 
snooping for the specified VLAN. 
fast_leave [enable | disable] – This parameter allows the user to enable the 
fast leave function. Enabled, this function will allow members of a multicast 
group to leave the group immediately (without the implementation of the 
Last Member Query Timer) when an IGMP Leave Report Packet is received 
by the Switch. 
Restrictions Only administrator-level users can issue this command. 
Example usage: 
To configure the igmp snooping: 
DES-3026:4#config igmp_snooping vlan_name default host_timeout 250 
state enabled 
Command: config igmp_snooping vlan_name default host_timeout 250 
state enabled 
 
Success. 
 
DES-3026:4# 
 
 
143