DES-3010F / DES-3010G / DES-3018 / DES-3026 Layer 2 Switch CLI Reference Manual 
config igmp_snooping querier 
increase this value if a subnet is expected to be lossy.  
last_member_query_interval <sec 1-25> − The  maximum amount of time 
between group-specific query messages, including those sent in response 
to leave-group messages. The user may lower this interval to reduce the 
amount of time it takes a router to detect the loss of the last member of a 
group. 
state [enabled | disabled] − Allows the Switch to be specified as an IGMP 
Querier or Non-querier. 
Restrictions Only administrator-level users can issue this command. 
Example usage: 
To configure the igmp snooping: 
DES-3026:4#config igmp_snooping querier default query_interval 125 state enabled 
Command: config igmp_snooping querier default query_interval 125 state enabled 
 
Success. 
 
DES-3026:4# 
 
config router_ports 
Purpose  Used to configure ports as router ports. 
Syntax 
config router_ports <vlan_name 32> [add | delete] <portlist> 
Description  This command allows you to designate a range of ports as being connected 
to multicast-enabled routers. This will ensure that all packets with such a 
router as its destination will reach the multicast-enabled router − regardless 
of protocol, etc. 
Parameters 
<vlan_name 32> − The name of the VLAN on which the router port resides. 
[add | delete] – Specify whether to add or delete ports defined in the 
following parameter <portlist>, to the router port function. 
<portlist> − Specifies a port or range of ports that will be configured as 
router ports.  
Restrictions Only administrator-level users can issue this command. 
Example usage: 
To set up static router ports: 
DES-3026:4#config router_ports default add 1-10 
Command: config router_ports default add 1-10 
 
Success. 
 
DES-3026:4# 
 
 
 
101