display msdp rpf-peer

Function

The display msdp rpf-peer command displays information about all reverse path forwarding (RPF) peers of a specific source's rendezvous point (RP) address, including RPF peer selection rules and RPF route types.

Format

display msdp { vpn-instance vpn-instance-name | all-instance } rpf-peer original-rp original-rp-address

display msdp rpf-peer original-rp original-rp-address

Parameters

Parameter	Description	Value
vpn-instance vpn-instance-name	Displays information about all RPF peers of a specific source's RP address in a specified VPN instance. vpn-instance-name specifies the name of a VPN instance.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. In addition, the VPN instance name must not be _public_. When double quotation marks are used around the string, spaces are allowed in the string.
all-instance	Displays information about all RPF peers of a specific source's RP address in all instances.	-
original-rp original-rp-address	original-rp-address specifies a source's RP address.	The value is in dotted decimal notation.

Parameter

Description

Value

vpn-instance vpn-instance-name

Displays information about all RPF peers of a specific source's RP address in a specified VPN instance.

vpn-instance-name specifies the name of a VPN instance.

The value is a string of 1 to 31 case-sensitive characters, spaces not supported. In addition, the VPN instance name must not be _public_. When double quotation marks are used around the string, spaces are allowed in the string.

all-instance

Displays information about all RPF peers of a specific source's RP address in all instances.

original-rp original-rp-address

original-rp-address specifies a source's RP address.

The value is in dotted decimal notation.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
msdp	read

Usage Guidelines

Usage Scenario

To check whether the forwarding path of source active (SA) messages works properly, run the display msdp rpf-peer command. Based on the RPF peer information in the command output, you can check each hop in the forwarding path. If the forwarding path works improperly, this command helps you locate faulty nodes.

Prerequisites

Multicast Source Discovery Protocol (MSDP) peers have been configured, because only MSDP peers in Up TCP connections can become RPF peers.

NOTE:

A device does not perform RPF peer checks on SA messages received from any types of the following MSDP peers:

The MSDP peer address is the source's RP address.
The MSDP peer is a static RPF peer of the local device.
The MSDP peer is a unique MSDP peer of the local device.
The MSDP peer has joined a full-mesh group.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display information about RPF peers of the source's RP 1.2.3.4 in the public network instance.

<HUAWEI> display msdp rpf-peer original-rp 1.2.3.4
 MSDP RPF peer information of VPN-Instance: public net
 MSDP RPF peer information for Original RP: 1.2.3.4
 01. RPF peer: 6.6.6.6
  RPF selection rule: Peer is IGP next hop of best route
  RPF used topology: default
  RPF route type: multicast(static)

**Table 1** Description of the **display msdp rpf-peer** command output
Item	Description
MSDP RPF peer information of VPN-Instance	Instance in which RPF peer information is displayed.
MSDP RPF peer information for Original RP	Source RP address.
RPF peer	RPF peer address.
RPF selection rule	RPF peer selection rule: Peer is IGP next hop of best route: The RPF peer is a next hop of an IGP route. Peer is in the AS-path to original RP: The RPF peer is on an AS-path to the source's RP address. Peer is (M)BGP next hop of best route: The RPF peer is a next hop of a/an (M)BGP route. Peer is (M)BGP advertiser of best route: The RPF peer is a forwarder of a/an (M)BGP route.
RPF used topology	RPF used topology: default: default topology. multicast: multicast topology. topology name (user-defined): unicast topology.
RPF route type	RPF route type: mbgp: Multicast Border Gateway Protocol (MBGP) route. unicast(bgp): BGP route. multicast(static): static multicast route. unicast: IGP route (unicast route).