Cisco 2950G 24 Software Configuration Guide - Page 413
Setting the Maximum Number of IGMP Groups
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Chapter 17 Configuring IGMP Snooping and MVR Configuring IGMP Filtering Current configuration : 123 bytes ! interface FastEthernet0/12 no ip address shutdown snmp trap link-status ip igmp max-groups 25 ip igmp filter 4 end Setting the Maximum Number of IGMP Groups You can set the maximum number of IGMP groups that a Layer 2 interface can join by using the ip igmp mac-groups interface configuration command. Use the no form of this command to set the maximum back to the default, which is no limit. You cannot use this command on ports that belong to an EtherChannel port group. Beginning in privileged EXEC mode, follow these steps to apply an IGMP profile to a switch port: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command configure terminal interface interface-id ip igmp max-groups number end show running-configuration interface interface-id copy running-config startup-config Purpose Enter global configuration mode. Enter interface configuration mode, and enter the physical interface to configure, for example gigabitethernet0/1. The interface must be a Layer 2 port that does not belong to an EtherChannel group. Set the maximum number of IGMP groups that the interface can join. The range is from 0 to 4294967294. The default is to have no maximum set. Return to privileged EXEC mode. Verify the configuration. (Optional) Save your entries in the configuration file. To remove the maximum group limitation and return to the default of no maximum, use the no ip igmp max-groups interface configuration command. This example shows how to limit the number of IGMP groups that an interface can join to 25. Switch(config)# interface fastethernet0/12 Switch(config-if)# ip igmp max-groups 25 Switch(config-if)# end Switch# show running-config interface fastethernet0/12 Building configuration... Current configuration : 123 bytes ! interface FastEthernet0/12 no ip address shutdown snmp trap link-status ip igmp max-groups 25 ip igmp filter 4 end 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide 17-23
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