Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for preventing route flapping in an intermediate-intermediate routing protocol

A routing protocol and routing technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as IS-IS routing oscillation

Active Publication Date: 2017-03-15
NEW H3C TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides a method and device for preventing route oscillation in an intermediate-intermediate routing protocol, which can solve the problem of IS-IS route oscillation without adjusting the priority of different protocol routes, and is flexible in use and does not affect routing study

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for preventing route flapping in an intermediate-intermediate routing protocol
  • Method and device for preventing route flapping in an intermediate-intermediate routing protocol
  • Method and device for preventing route flapping in an intermediate-intermediate routing protocol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035]Compared with the prior art, the present invention carries the generator information of the LSP in the LSP prefix issued by the router, and uses the generator information to determine whether routing calculation is required. In this way, on the Level 12 system, the route flapping problem caused by the loopback of the imported route through another Level area is avoided.

[0036] The embodiment of the present invention provides a method for preventing route flapping in an intermediate-intermediate routing protocol, which is applied to a router.

[0037] see figure 2 , the method includes:

[0038] 201. The local router receives a first LSP packet sent by the peer router, where the first LSP packet carries a first routing prefix and information about the original generator of the first routing prefix.

[0039] 202. The local router parses out the first routing prefix carried in the first LSP message and the original generator information of the first routing prefix, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method and device for preventing route oscillation in an intermediate-intermediate routing protocol. The method includes: the local router receives the first LSP message sent by the peer router, and the first LSP message carries the first routing prefix and the original generator information of the first routing prefix. The local router parses out the first routing prefix carried by the first LSP message and the original generator information of the first routing prefix, and judges whether the first routing prefix is ​​generated by the local router according to the original generator information of the first routing prefix. If the first route prefix is ​​generated by the local router, the IS‑IS route calculation for the first route prefix is ​​no longer performed. If the first route prefix is ​​not generated for the local router, perform IS‑IS route calculation for the first route prefix. It can solve the problem of IS‑IS route oscillation without adjusting the priority of different protocol routes, and it is flexible to use and does not affect route learning.

Description

technical field [0001] The invention relates to the technical field of intermediate-intermediate routing protocols, in particular to a method and device for preventing route oscillation in an intermediate-intermediate routing protocol. Background technique [0002] IS-IS (Intermediate System-to-Intermediate System intra-domain routinginformation exchange protocol, intermediate-intermediate routing protocol), belongs to the interior gateway protocol, used in the autonomous system. IS-IS is a link state protocol that uses the Shortest Path First (SPF) algorithm for route calculation. IS (Intermediate System): The intermediate system is the basic unit for generating routes and disseminating routing information in the IS-IS protocol. It is equivalent to a router in TCP / IP, and is referred to as a router hereinafter. LSP (Link State Protocol Data Unit or Link State Packet): link state protocol data unit or link state packet. In IS-IS, each router generates an LSP, which contain...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04L12/741H04L45/28H04L45/74
Inventor 林长望
Owner NEW H3C TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com