4
Configure candidate
BSR and candidate
RP.
Configure VLAN interface 1 as candidate BSR on
Multicast
Routing→PIM SM→BSR
page. Configure VLAN interface 1 as
candidate RP on
Multicast Routing→PIM SM→RP
page.
Configure Switch B and C:
Step Operation
Description
1
Configure interface. Configure IP addresses and subnet masks of VLAN interfaces
2, 3, 4 and 5 on
Routing→ Interface→Interface Config
page.
2
Configure routing
protocol.
Configure the routing entries via static route or dynamic routing
protocol like OSPF, and make sure all network can
communicate with each other.
3
Enable multicast
routing and PIM SM.
Enable multicast routing on
Multicast Routing→Global Config
page. Enable PIM SM on VLAN interfaces 2, 3, 4 and 5 on
Multicast Routing→PIM SM→PIM SM Interface
page.
4
Enable IGMP.
Enable IGMP on the VLAN interfaces 4 and 5 which connect to
the receivers on
Multicast Rout
ing→IGMP→Interface Config
page.
11.5
Static Mroute
When the multicast network topology is the same as that of the unicast network, receivers can
receive the multicast data through the unicast route. But in some circumstances, the multicast
network topology differs from that of unicast network or some routers in the network supports
unicast only. Then you can configure static multicast routes to offer different transferring paths
for multicast and unicast data separately. Notice the following two considerations:
The static multicast routing functions only to affect the RPF check, but not to direct the
forwarding of the multicast data, so it is also called RPF static routing;
The static multicast routing only functions in the configured multicast router. It won’t be
broadcasted or imported into other routers in any way.
The static multicast routing is an important foundation for the RPF check. In the RPF check
process, with static multicast routing configured, the router will choose one as the RPF route
after comparing the optimal unicast route and the static multicast route selected respectively
from the unicast routing table and the static multicast routing table.
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