static-rpf-peer

Function

The static-rpf-peer command configures a Multicast Source Discovery Protocol (MSDP) peer as a static Reverse Path Forwarding (RPF) peer. The source active (SA) messages sent by the static RPF peer are free from the RPF check.

The undo static-rpf-peer command restores the default configuration.

By default, no MSDP peer is configured as a static RPF peer.

Format

static-rpf-peer peer-address rp-policy ip-prefix-name

static-rpf-peer peer-address

undo static-rpf-peer peer-address

Parameters

Parameter	Description	Value
peer-address	Specifies the address of a static RPF peer.	The address is in dotted decimal notation.
rp-policy ip-prefix-name	Specifies the filtering policy based on Rendezvous Point (RP) addresses. The filtering policy is used to filter SA messages based on RP addresses. ip-prefix-name specifies the name of the filtering policy.	The name is a string of 1 to 169 characters.

Parameter

Description

Value

peer-address

Specifies the address of a static RPF peer.

The address is in dotted decimal notation.

rp-policy ip-prefix-name

Specifies the filtering policy based on Rendezvous Point (RP) addresses. The filtering policy is used to filter SA messages based on RP addresses. ip-prefix-name specifies the name of the filtering policy.

The name is a string of 1 to 169 characters.

Views

VPN instance MSDP view, MSDP view of a public network instance

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
msdp	write

Usage Guidelines

Usage Scenario

To prevent SA messages from being circularly forwarded between MSDP peers, MSDP performs the RPF check on the received SA message. MSDP strictly controls the incoming SA messages. The SA message that does not comply with the RPF rules are discarded.

To protect the SA messages transmitted between MSDP peers from being discarded because of RPF rules and reduce redundant traffic, you can specify MSDP peers as static RPF peers. The SA messages received from a static RPF peer need not be checked according to RPF rules.

Prerequisites

The multicast routing-enable command is run in the public network instance view or VPN instance view.

MSDP peers have been configured.

Configuration Impact

You can specify multiple remote static RPF peers for the router by using the static-rpf-peer command repeatedly.

Precautions

The methods of configure multiple static RPF peers for a Router are as follows:

All the peers are configured with rp-policy: When SA messages sent by a static RPF peer in the active state reaches the local router, the local router filters the SA messages according to specified rp-policy specified on the peers, and receives only the SA messages passing the filtering.
None of the peers is configured with rp-policy: The local router receives all the SA messages from the static RPF peers in the active state.

Example

# In the public network instance, configure 192.168.3.2 as a static RPF peer, with the source RP address range being 192.168.0.0/16.

<HUAWEI> system-view
[~HUAWEI] ip ip-prefix list-df permit 192.168.0.0 16 greater-equal 16 less-equal 32
[*HUAWEI] multicast routing-enable
[*HUAWEI] msdp
[*HUAWEI-msdp] peer 192.168.3.2 connect-interface GigabitEthernet 0/1/0
[*HUAWEI-msdp] static-rpf-peer 192.168.3.2 rp-policy list-df