backoff

Use backoff to set the LDP backoff initial delay time and maximum delay time.

Use undo backoff to restore the default.

Syntax

backoff initial initial-time maximum maximum-time

undo backoff

Default

The LDP backoff initial delay time is 15 seconds, and the maximum delay time is 120 seconds.

Views

LDP view

LDP-VPN instance view

Predefined user roles

network-admin

Parameters

initial initial-time: Specifies the LDP backoff initial delay time in the range of 15 to 50331 seconds.

maximum maximum-time: Specifies the LDP backoff maximum delay time in the range of 120 to 50331 seconds.

Usage guidelines

LDP peers continually negotiate with each other until a session is set up. If LDP peers use incompatible negotiation parameters (for example, different label advertisement modes), a large amount of negotiation traffic will enter the network. To suppress LDP session negotiation traffic, use this command to control the interval between negotiation attempts.

After LDP fails to establish a session to a peer LSR for the first time, LDP does not start another attempt until the initial delay timer expires. If the session setup fails again, LDP waits for two times the previous delay before the next attempt. This process continues until the maximum delay time is reached. After that, the maximum delay time always takes effect.

If you configure the initial delay time to be larger than the maximum delay time, the configuration does not take effect. LDP uses the maximum delay time as the initial delay time.

Examples

# Configure LDP backoff for the public network, and set the initial delay time to 100 seconds and the maximum delay time to 300 seconds.

<Sysname> system-view
[Sysname] mpls ldp
[Sysname-ldp] backoff initial 100 maximum 300