mpls mldp p2mp bfd-tunnel

Function

The mpls mldp p2mp bfd-tunnel command sets the minimum interval at which BFD packets are sent and the BFD detection multiplier.

The undo mpls mldp p2mp bfd-tunnel command restores the default BFD parameters.

By default, BFD sessions use default parameter values.

Format

mpls mldp p2mp bfd-tunnel { min-tx-interval tx-interval | detect-multiplier multiplier } ^*

undo mpls mldp p2mp bfd-tunnel { min-tx-interval | detect-multiplier } ^*

Parameters

Parameter	Description	Value
min-tx-interval tx-interval	Specifies the minimum interval at which BFD packets are sent.	The value is an integer ranging from 3 to 20000, in milliseconds. The default value is 10.
detect-multiplier multiplier	Specifies the detection time multiplier. If a link is working stably, increase the multiplier. If a link is working unstably, increase the multiplier.	The value is an integer ranging from 3 to 50. The default value is 3.

Parameter

Description

Value

min-tx-interval tx-interval

Specifies the minimum interval at which BFD packets are sent.

The value is an integer ranging from 3 to 20000, in milliseconds. The default value is 10.

detect-multiplier multiplier

Specifies the detection time multiplier.

If a link is working stably, increase the multiplier.
If a link is working unstably, increase the multiplier.

The value is an integer ranging from 3 to 50. The default value is 3.

Views

MPLS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-ldp	write

Usage Guidelines

Usage Scenario

After dynamic BFD for mLDP P2MP tunnel is enabled, a device uses default values to establish a BFD session. The default minimum interval at which BFD packets are sent is 10 ms, and the BFD detection multiplier is 3.

In real-world situations, to change default values, run the mpls mldp p2mp bfd-tunnel command to adjust BFD parameters to change the network convergence speed as needed. If a device does not receive BFD packets after the local effective BFD detection period, the device declares the BFD session Down.

Example

# Configure dynamic BFD for mLDP P2MP tunnel and set the interval at which BFD packets are sent to 500 ms and BFD detection multiplier to 4.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls mldp p2mp bfd-tunnel min-tx-interval 500 detect-multiplier 4