Network requirements – H3C Technologies H3C S12500 Series Switches User Manual

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192.168.3.1 Up 01:07:08 200 8 0

# Display detailed MSDP peer information on Switch B.

[SwitchB] display msdp peer-status

MSDP Peer Information of VPN-Instance: public net

MSDP Peer 192.168.1.2, AS 200

Description:

Information about connection status:

State: Up

Up/down time: 00:15:47

Resets: 0

Connection interface: Vlan-interface101 (192.168.1.1)

Number of sent/received messages: 16/16

Number of discarded output messages: 0

Elapsed time since last connection or counters clear: 00:17:51

Information about (Source, Group)-based SA filtering policy:

Import policy: none

Export policy: none

Information about SA-Requests:

Policy to accept SA-Request messages: none

Sending SA-Requests status: disable

Minimum TTL to forward SA with encapsulated data: 0

SAs learned from this peer: 0, SA-cache maximum for the peer: none

Input queue size: 0, Output queue size: 0

Counters for MSDP message:

Count of RPF check failure: 0

Incoming/outgoing SA messages: 0/0

Incoming/outgoing SA requests: 0/0

Incoming/outgoing SA responses: 0/0

Incoming/outgoing data packets: 0/0

Inter-AS multicast configuration by leveraging static RPF peers

Network requirements

As shown in

Figure 60

, AS 100 and AS 200 are two ASs running OSPF. BGP runs between the two ASs.

PIM-SM 1 belongs to AS 100, and PIM-SM 2 and PIM-SM 3 belong to AS 200. Each PIM-SM domain

has at least one multicast source or receiver.
Configure Loopback 0 as a C-BSR and C-RP of the related PIM-SM domain on Switch A, Switch D and
Switch G.
According to the RPF principle, the device can receive SA messages that pass the filtering policy from its

static RPF peers. To share multicast source information among PIM-SM domains without changing the

unicast topology structure, configure MSDP peering relationship for the RPs of the PIM-SM domains and
configure static RPF peering relationship for the MSDP peers to share multicast source information among

the PIM-SM domains.

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