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

Reminder

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

upgrade

NE20E-S V800R010C10SPC500 Configuration Guide - MPLS 01

This is NE20E-S V800R010C10SPC500 Configuration Guide - MPLS
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 Bandwidth Information Flooding for MPLS TE

Configuring Bandwidth Information Flooding for MPLS TE

If the link bandwidth changes slightly, the threshold for flooding bandwidth information is set on the ingress or a transit node of a CR-LSP, which reduces flooding attempts and saves network resources.

Usage Scenario

To synchronize data between TEDBs in an IGP area, OSPF TE or IS-IS TE is configured to update TEDB information and flood bandwidth information if the remaining bandwidth changes on an MPLS interface.

NE20E supports the following methods of controlling bandwidth information flooding:
  • Configure flooding commands to enable immediate bandwidth information flooding on a device.
  • Configure a flooding interval to enable periodic bandwidth information flooding on a device.
  • Configure a flooding threshold to prevent frequent flooding.
    • When the percentage of the bandwidth reserved for the MPLS TE tunnel on a link to the remaining link bandwidth in the TEDB is greater than or equal to the configured threshold (flooding threshold), OSPF TE and IS-IS TE flood link bandwidth information to all devices in this area and update TEDB information.
    • When the percentage of the bandwidth released by the MPLS TE tunnel to the remaining link bandwidth in the TEDB is greater than or equal to the configured threshold, OSPF TE and IS-IS TE flood link bandwidth information to all devices in this area and update TEDB information.

Pre-configuration Tasks

Before adjusting the flooding threshold, configure an RSVP-TE tunnel.

Procedure

  • Configure forcible bandwidth information flooding.
    1. Run system-view

      The system view is displayed.

    2. Run mpls

      The MPLS view is displayed.

    3. Run mpls te manual-flooding

      A device on the MPLS TE tunnel is configured to immediately flood the bandwidth change to the network.

    4. Run commit

      The configurations are committed.

  • Configure periodic bandwidth information flooding.
    1. Run system-view

      The system view is displayed.

    2. Run mpls

      The MPLS view is displayed.

    3. Run mpls te periodic-flooding [ interval time-value ]

      Periodic bandwidth information flooding is enabled on a device.

    4. Run commit

      The configurations are committed.

  • Configure a flooding threshold.
    1. Run system-view

      The system view is displayed.

    2. Run interface interface-type interface-number

      The view of the interface on which the MPLS TE tunnel is established is displayed.

    3. Run mpls te bandwidth change thresholds { down | up } percent

      The flooding threshold is configured.

      The flooding threshold is set only on a physical interface.

    4. Run commit

      The configurations are committed.

Translation
Download
Updated: 2019-01-03

Document ID: EDOC1100055103

Views: 22109

Downloads: 37

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