3Com 4210, 5500G, 4200G manual Configuring Msdp peers, # Configure an Msdp peer on Switch C

162CHAPTER 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