mpls rsvp-te bfd all-interfaces

Function

The mpls rsvp-te bfd all-interfaces command sets BFD session parameters on all RSVP-TE interfaces.

The undo mpls rsvp-te bfd all-interfaces command restores the default BFD session parameters.

By default, BFD sessions use default parameter values.

Format

mpls rsvp-te bfd all-interfaces { detect-multiplier multiplier | min-tx-interval tx-interval | min-rx-interval rx-interval | process-pst | tos-exp tosexp-value } ^*

undo mpls rsvp-te bfd all-interfaces { detect-multiplier | min-tx-interval | min-rx-interval | process-pst | tos-exp } ^*

Parameters

Parameter	Description	Value
detect-multiplier multiplier	Specifies a BFD detection multiplier.	The value is an integer that ranges from 3 to 50. The default value is 3.
min-tx-interval tx-interval	Specifies the minimum interval at which BFD packets are sent.	The value is an integer that ranges from 3 to 20000. The default value is 10.
min-rx-interval rx-interval	Specifies the minimum interval at which BFD packets are received.	The value is an integer that ranges from 3 to 20000. The default value is 10.
process-pst	Set BFD PST.	-
tos-exp tosexp-value	Configure the priority of BFD packets.	An integer ranging from 0 to 7.

Views

MPLS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

Actual local interval at which BFD packets are sent = MAX { Local interval at which BFD packets are sent, Remote interval at which BFD packets are received }; Actual local interval at which BFD packets are received = MAX { Remote interval at which BFD packets are sent, Local interval at which BFD packets are received }; Local detection period = Actual interval at which BFD packets are received x Remote BFD detection multiplier.

For example:

The local sending interval is 200 ms, while the local receiving interval is 300 ms, and the detection multiplier is 4.
The remote sending interval is 100 ms, while the remote receiving interval is 600 ms, and the detection multiplier is 5.
The actual local sending interval is 600 ms (MAX { 200 ms, 600 ms }), while the local receiving interval is 300 ms (MAX { 100 ms, 300 ms }), and the detection period is 1500 ms (300 ms x 5).
The actual remote sending interval is 300 ms (MAX { 100 ms, 300 ms }), while the receiving interval is 600 ms (MAX { 200 ms, 600 ms }), and the detection period is 2400 ms (600 ms x 4).
On an interface on which BFD for PST is enabled, configure the process-pst parameter in this command to enable the interface to more rapidly obtain BFD detection results.

Prerequisites

BFD has been enabled.

Example

# Set the session parameters of all RSVP-TE interfaces.

<HUAWEI> system-view
[~HUAWEI] bfd
[*HUAWEI-bfd] quit
[*HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] mpls rsvp-te
[*HUAWEI-mpls] mpls rsvp-te bfd all-interfaces min-tx-interval 50 min-rx-interval 40