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.


Configuration Guide - IP Unicast Routing

S7700 and S9700 V200R011C10

This document describes IP Unicast Routing configurations supported by the switch, including the principle and configuration procedures of IP Routing Overview, Static Route, RIP, RIPng, OSPF, OSPFv3, IS-IS(IPv4), IS-IS(IPv6), BGP, Routing Policy ,and PBR, and provides configuration examples.

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 Attributes for CSNPs

Configuring Attributes for CSNPs


Complete sequence number PDUs (CSNPs) contain summaries of all the LSPs in an LSDB to ensure LSDB synchronization between neighbors. CSNPs are processed differently on broadcast and P2P links.
  • On a broadcast link, CSNPs are periodically sent by a DIS device. If a device detects that its LSDB is not synchronized with that on its neighboring device, the device will send PSNPs to apply for missing LSPs.

  • On a P2P link, CSNPs are sent only during initial establishment of neighboring relationships.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. (Optional) On an Ethernet interface, run undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

  4. Run isis timer csnp csnp-interval [ level-1 | level-2 ]

    The interval at which CSNPs are sent is set on the specified interface.

    By default, the interval at which CSNPs are sent on a broadcast network is 10 seconds.

    Configure Level-1 and Level-2 only when a broadcast interface is specified.

Updated: 2020-02-04

Document ID: EDOC1000178324

Views: 286267

Downloads: 229

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next