mpls te p2mp-te frr-mbb

Function

The mpls te p2mp-te frr-mbb command triggers an MBB mechanism after FRR is enabled on a P2MP tunnel.

The undo mpls te p2mp-te frr-mbb command restores the default configuration.

By default, the leaf MBB mode is configured for P2MP tunnels.

Format

mpls te p2mp-te frr-mbb { sub-lsp | lsp | both }

undo mpls te p2mp-te frr-mbb both

undo mpls te p2mp-te frr-mbb lsp

Parameters

Parameter	Description	Value
sub-lsp	Enable the leaf MBB mode for P2MP tunnels.	-
lsp	Enables the tree MBB mode for P2MP tunnels.	-
both	Enables both the tree and leaf MBB modes for P2MP tunnels.	-

Parameter

Description

Value

sub-lsp

Enable the leaf MBB mode for P2MP tunnels.

lsp

Enables the tree MBB mode for P2MP tunnels.

both

Enables both the tree and leaf MBB modes for P2MP tunnels.

Views

MPLS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

In P2MP tunnel scenarios, if different devices exist on a link and an FRR backup path fails, the devices implement different MBB modes, causing the traffic to be abnormally forwarded and resulting in service interruptions. To minimize packet loss, run the mpls te p2mp-te frr-mbb both command to configure both the tree and leaf MBB modes or the mpls te p2mp-te frr-mbb lsp command to configure the tree MBB mode.

Example

# Enable the tree MBB mode for P2MP tunnels.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] mpls te p2mp-te
[*HUAWEI-mpls] mpls te p2mp-te frr-mbb lsp

# Configure both the tree and leaf MBB modes for the P2MP tunnels.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] mpls te p2mp-te
[*HUAWEI-mpls] mpls te p2mp-te frr-mbb both