T3700G-28TQ
 
JetStream 28-Port Gigabit Stackable L3 Managed Switch CLI Guide 
 
306 
Syntax 
ip igmp robustness robustness 
no ip igmp robustness 
Parameter 
robustness —— Specify the robustness of IGMP. The default value is 2. 
Command Mode 
Interface Configuration Mode 
Example 
Configure the robustness of IGMP as 3 on Interface VLAN 2: 
T3700G-28TQ(config)# interface vlan 2 
T3700G-28TQ(config-if)# ip igmp robustness 3 
ip igmp send-router-alert 
Description 
The ip igmp sender-router-alert is used to configure the sending IGMP 
messages to carry the router-alert option on specified interface. To disable this 
function on this interface, please use no ip igmp send-router-alert command. 
This function is enabled by default. 
Syntax 
ip igmp send-router-alert 
no ip igmp send-router-alert 
Command Mode 
Interface Configuration Mode 
Example 
Configure the sending IGMP messages to carry the router-alert option on 
interface VLAN 2: 
T3700G-28TQ(config)# interface vlan 2 
T3700G-28TQ(config-if)# ip igmp send-router-alert