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.


CLI-based Configuration Guide - IP Unicast Routing

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R009

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).
Setting the Convergence Priority of OSPF Routes

Setting the Convergence Priority of OSPF Routes


With the integration of network services, different services such as data, voice, and video run on the same network infrastructure, and have different requirements for the network. For Video on Demand (VoD) services, the route convergence speed of the multicast source server is the most critical factor that affects multicast services. It is required that the routes to the multicast source should converge rapidly when network faults occur. On the BGP or MPLS VPN bearer network where OSPF is used to implement the IP connectivity of the backbone network, end-to-end routes between PEs need to be converged rapidly.

You can set priorities for specific routes by setting the convergence priority of OSPF routes so that these routes converge preferentially. This shortens the interruption of key services and improves the reliability of the entire network.


  1. Run system-view

    The system view is displayed.

  2. Run ospf [ process-id ]

    The OSPF view is displayed.

  3. Run prefix-priority { critical | high | medium } ip-prefix ip-prefix-name

    The convergence priority of OSPF routes is set.

    After the convergence priority of OSPF routes is set, OSPF can calculate and flood LSAs, and synchronize LSDBs according to the priorities. This speeds up route convergence. When an LSA meets multiple priorities, the highest priority takes effect. OSPF calculates LSAs in the sequence of intra-area routes, inter-area routes, and AS external routes. This command makes OSPF calculate route priorities. Convergence priorities are critical, high, medium, and low. During LSA flooding, LSAs are placed into the corresponding critical, high, medium, and low queues according to priorities to speed up the processing of high-priority LSAs.

    This command takes effect only on the public network.

Updated: 2019-12-27

Document ID: EDOC1000174069

Views: 196481

Downloads: 324

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next