No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


NE40E V800R010C00 Configuration Guide - MPLS 01

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring an LDP LSP

Configuring an LDP LSP

LDP is a label distribution protocol used to establish LSPs in an MPLS domain.

Usage Scenario

LDP can dynamically establish an LSP. An LDP LSP provided that LDP nodes do not need to be specified and traffic engineering (TE) does not need to be deployed on the MPLS network.

The maximum number of LSPs varies with the capacity and performance of a device. If too many LSPs are configured on a device, the device may operate unstably.

An LSP can be established only when eligible routes exist on LSRs and match the LSP setup policy. LDP can only use routes that match a specified policy to set up LSPs, which helps control the number of LSPs.

The NE40E provides the following policies for controlling the number of LSPs:
  • Policies for establishing ingress or egress LSPs are as follows:

    • LDP uses all IGP routes to establish LSPs

    • LDP uses host routes to establish LSPs.

    • LDP uses an IP prefix list to establish LSPs.

    • LDP does not establish LSPs.

  • To control the number of transit LSPs on a transit LSR, an IP prefix list can be used to filter routes, and only the routes matching the filtering policy can be used to establish transit LSPs.

To correctly select a path maximum transmission unit (MTU), an LSR must obtain the MTU of each link connected to it using LDP MTU signaling.

Pre-configuration Tasks

Before configuring an LDP LSP, configure a local LDP session.

Configuration Procedures

Figure 4-4  LDP LSP configuration
Updated: 2018-07-12

Document ID: EDOC1100028530

Views: 102547

Downloads: 336

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Previous Next