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Chapter 28. PIM | 461
ProSafe M4100 and M7100 Managed Switches
between trees. PIM-SM uses a bootstrap router (BSR), which advertises information to other
multicast routers about the RP. In a given network, a set of routers can be administratively
enabled as candidate bootstrap routers. If it is not apparent which router should be the BSR,
the candidates flood the domain with advertisements. The router with the highest priority is
elected. If all the priorities are equal, then the candidate with the highest IP address becomes
the BSR. PIM-SM is defined in RFC 4601.
The following example describes how to configure and use PIM-SM. In this case, set the
switch B,C,D as RP-candidate and BSR-candidate. Switch B will become the BSR because it
has the highest priority
. Switch D will become the RP after RP election.
CLI: Configure PIM-SM
PIM-SM on Switch A
1. Enable IP routing on the switch.
(Netgear Switch)#configure
(Netgear Switch) (Config)#ip routing
2. Enable PIM-SM on the switch
(Netgear Switch) (Config)#ip pim sparse
.
3. Enable IP multicast forwarding on the switch.
(Netgear Switch) (Config)#ip multicast
4. Enable RIP to build a unicast IP routing table
(Netgear Switch) (Config)#interface 1/0/1
(Netgear Switch) (Interface 1/0/1)#routing
(Netgear Switch) (Interface 1/0/1)#ip address 192.168.2.2 255.255.255.0
(Netgear Switch) (Interface 1/0/1)#ip rip
.