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162 CHAPTER 16: MULTICAST CONFIGURATION GUIDE
As shown above, the multicast source has been registered on Switch C, which is
deemed as the RP.
# View the PIM routing information on Switch F.
<Switch F>dis pim routing-table
PIM-SM Routing Table
Total 0 (S,G) entry, 1 (*,G) entries, 0 (*,*,RP) entry
(*, 225.1.1.1), RP 10.1.1.1
Protocol 0x20: PIMSM, Flag 0x2003: RPT WC NULL_IIF
Uptime: 00:00:12, never timeout
Upstream interface: Null, RPF neighbor: 0.0.0.0
Downstream interface list:
Vlan-interface2, Protocol 0x1: IGMP, never timeout
Matched 0 (S,G) entry, 1 (*,G) entries, 0 (*,*,RP) entry
As shown above, the multicast receiver joins to Switch F, rooted at which an RPT
has been established.
However, the RP for the multicast source is different from the RP for the multicast
receiver, so the multicast receiver cannot receive multicast data yet. Anycast RP
needs to be configured on these two RPs.
Configuring MSDP peers
# Configure an MSDP peer on Switch C.
[SwitchC] msdp
[SwitchC-msdp] originating-rp Vlan-interface 101
[SwitchC-msdp] peer 192.168.3.2 connect-interface Vlan-interface 101
[SwitchC-msdp] quit
# Configure an MSDP peer on Switch F.
[SwitchF] msdp
[SwitchF-msdp] originating-rp Vlan-interface 102
[SwitchF-msdp] peer 192.168.1.1 connect-interface Vlan-interface 102
[SwitchF-msdp] quit
You can use the display msdp brief command to view the brief information of
MSDP peering relationships between the switches.
# View the brief MSDP peer information on Switch C.
[SwitchC] display msdp brief
MSDP Peer Brief Information
Peer’s Address State Up/Down time AS SA Count Reset Count
192.168.3.2 Up 00:48:21 ? 2 0
# View the brief MSDP peer information on Switch F.
[SwitchF] display msdp brief
MSDP Peer Brief Information
Peer’s Address State Up/Down time AS SA Count Reset Count
192.168.1.1 Up 00:50:22 ? 2 0