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Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
OL-21227-02
Chapter 1 Cisco MWR 2941 Router Overview
Features
Figure 5 IP Transmission Schemes
In Figure 6, the receivers (the designated multicast group) are interested in receiving the video data
stream from the source. The receivers indicate their interest by sending an IGMP host report to the
routers in the network. The routers are then responsible for delivering the data from the source to the
receivers. The routers use Protocol Independent Multicast (PIM) (see the “Protocol Independent
Multicast” section on page 1-23) to dynamically create a multicast distribution tree. The video data
stream will then be delivered only to the network segments that are in the path between the source and
the receivers.