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

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 the Optional Checksum

Configuring the Optional Checksum

Context

When a network is running, Intermediate System to Intermediate System (IS-IS) routers may be attacked or IS-IS packets may be modified. As a result, important network information may be intercepted, causing serious loss to the network. The optional checksum encapsulates optional checksum TLVs into the Complete Sequence Numbers Protocol Data Units (CSNPs), Partial Sequence Number Protocol Data Units (PSNPs), and Hello packets sent by IS-IS routers. When the peer device receives the encapsulated packets, it checks whether TLVs carried in the packets are correct. If TLVs are not correct, the peer device discards the packets for network security.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run isis

    An IS-IS process is created and the IS-IS view is displayed.

  3. Run optional-checksum enable

    IS-IS optional checksum is enabled.

    NOTE:

    If MD5 authentication or Keychain authentication with valid MD5 authentication is configured on an IS-IS interface or area, IS-IS routers send Hello packets and SNP packets carrying no checksum TLVs and verify the checksum of the received packets.

Translation
Download
Updated: 2019-04-01

Document ID: EDOC1000178324

Views: 205349

Downloads: 178

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