.. _example_protocols_igmp_checkigmpgroupswithvrfs: ########################### Check Igmp Groups With Vrfs ########################### The IGMP protocol can be used to control the delivery of IP multicasts. This protocol prevents hosts on a local network from receiving traffic for a multicast group they have not explicitly joined. Therefore, instead of flooding multicast traffic to all the ports in a broadcast domain (or VLAN), multicast traffic will only be forwarded to the links that have requested them. .. image:: igmpgroupswithvrfstopology.svg :width: 800 ************************** Test IGMP Groups With VRFs ************************** Description =========== The following scenario shows how to configure DUT0 to forward the multicast traffic generated by DUT1 to DUT2, when the latter has been previously added to the multicast group and using VRFs Scenario ======== .. include:: checkigmpgroupswithvrfs/testigmpgroupswithvrfs .. raw:: html