This section provides a complete multicast
configuration example between two Catalyst 4006 Switches with Layer
3 services. In this example, a host in VLAN 200 is receiving a
multicast transmission from a server in VLAN 100. CGMP is being used
between the switch and the Layer 3 card and the multicast routing
protocol employed is PIM sparse mode.
The multicast application used in this example
is an MP3 streaming application. This application was installed on
the server and continuously streaming MP3 files to member hosts
of the multicast group. The multicast session is being advertised
using the 228.244.25.52 address, while the actual multicast group is
228.49.66.100. The first address allows the host to discover the
multicast stream, while the latter address is used by the hosts to
retrieve the MP3 file.
Sample outputs in the diagram include the
configurations of the router and switch CGMP information. They
also show the multicast routing tables both before the host starts receiving
the multicast stream and while the host is receiving the stream.
Finally, the RP is located at 192.168.1.1. All relevant multicast
information has been bolded.