IP Networking Configuration
Configuration Guide 150 Document #: LTRT-31657
21.2.4 Multicast Example - Dynamic RP – Bootstrap Router Elects RP
This section includes multicast examples for Dynamic RP – Bootstrap Router Elects RP.
The VLC configuration and example from the “static multicast” chapter can be reused to
run multicast traffic for demonstrating this section.
Making the MSBR look for best RP:
Bootstrap Router publishes its multicast properties – the network selects the best
Bootstrap Router as the multicast manager that indicates for the best Rendezvous
Point as a multicast streamer.
Use
“ip multicast-routing” to enter multicast configuration mode and “mode pim”
to activate PIM protocol on the MSBR system.
Next, each interface that will be used for multicast traffic should be specifically turned
on:
interface Fiber 0/1
ip pim sparse-mode
exit
Server\Media Streaming Side:
Setting BSR – for the media streaming side we define the Giga 0/0 as the BSR. The
BSR will define the best RP for IP multicast traffic.
ip pim bsr-candidate Fiber 0/1 priority 1
Setting RP defines the VLAN 1 IP address to be the MSBR RP point;. the join-group
packet is sent to the RP IP address. In case the RP supports the desired group, then
multicast streaming will be made.
ip pim rp-candidate VLAN 1 priority 1
21.2.4.1 On the Client \ Media Receiving Side
No special configuration should be added. The user should activate “mode pim” in “ip
multicast-routing” and specifically on each interface that uses the multicast traffic, the PIM
protocol should be enabled.
configure data
ip multicast-routing
mode pim
exit
interface Fiber 0/1
ip pim sparse-mode
no shutdown
exit
interface BVI 1
ip pim sparse-mode
no shutdown
exit
The figure below illustrates the implementation of media streaming using VLC free software
on the server side, and using VLC on the client side for receiving multicast traffic.
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