T3700G-28TQ
 
JetStream 28-Port Gigabit Stackable L3 Managed Switch CLI Guide 
 
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message and the maximum number of entries is in the forwarding table. To 
remove the maximum group limitation and return to the default of no limitation 
on the specified port, please use the no ip igmp max-groups command. To 
return to the default action of dropping the report, please use the no ip igmp 
max-groups action command. These commands only apply to the dynamic 
multicast groups. 
Syntax 
ip igmp max-groups max-group 
no ip igmp max-groups max-group 
ip igmp max-groups action { drop | replace} 
no ip igmp max-groups action { drop | replace} 
Parameter 
max-group —— Specify the maximum number of the dynamic multicast groups 
that a port can join. It ranges from 0 to 4294967294. 
drop —— When the number of the dynamic multicast groups that a port joins 
has exceeded the max-group, the port will not join any new multicast group. 
replace ——When the number of the dynamic multicast groups that a port joins 
has exceeded the max-group, the newly joined multicast group will replace one 
of the old entries randomly. 
Command Mode 
Interface Configuration Mode 
Example 
Specify the maximum number of the dynamic multicast groups that the 
gigabitEthernet port 1/0/2 can join as 100 and the overflowed entry will replace 
the old one randomly: 
T3700G-28TQ(config)# interface gigabitEthernet 1/0/2 
T3700G-28TQ(config-if)# ip igmpmax-groups 100 
T3700-28TQ(config-if)#ip igmp max-groups action replace 
Specify the maximum number of the dynamic multicast groups that the routed 
port 1/0/2 can join as 100 and the overflowed entry will replace the old one 
randomly: 
T3700G-28TQ(config)# interface gigabitEthernet 1/0/2 
T3700G-28TQ(config-if)# no switchport 
T3700G-28TQ(config-if)# ip igmpmax-groups 100