Cisco IGMP Configuration Example

cisco-igmp-example

Cisco IGMP Configuration Example

In this configuration example, we will configure Cisco Catalyst Switch for IGMP (Internet Group Management Protocol). As you know IGMP is used to manage host memberships to the multicast groups. This is done at the edge switch in the multicast network. So, we will do our configuration on this edge switch.

For our IGMP Configuration Example, we will use the below Multicast topology:


cisco-igmp-example

Here, we will do IGMP Configuration on Cisco Catalyst switch for the below jobs:

• Switch Multicast Group membership
• Changing IGMP version
• Configuring IGMP timers

Let’s start to configure our Catalyst Switch for IGMPv3.

Switch Multicast Group membership

Firstly, we will configure our Switch A as a member of different Multicast Groups. Here, we will use the groups, 227.7.7.7 and 229.9.9.9. To do this, we will use “ip igmp join-group group-address” command.

SwitchA# configure terminal
SwitchA(config)# interface gigabitethernet 1/1/1
SwitchA(config-if)# ip igmp join-group 227.7.7.7
SwitchA(config-if)# ip igmp join-group 229.9.9.9
SwitchA(config-if)# end
SwitchA# copy running-config startup-config

By the way, there are two methods to pull the Multicast traffic to the switch. These methods can be used with below commands :

• ip igmp join-group group-name
• ip igmp static-group group-name

One Response to “Cisco IGMP Configuration Example”


  • Prashant / Reply

    It will be nice if you could show and explain “show commands” outputs as well

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