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

Method and device for processing link state information

An information processing method and link state information technology, which is applied in the field of network communication, can solve problems such as data packets not being able to reach certain network nodes, data flow oscillating, network impact, etc., so as to avoid short-term interruption of network flow and improve accuracy and stability effects

Active Publication Date: 2014-04-30
NEW H3C TECH CO LTD
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the link status information in the LSDB changes, the intermediate system needs to recalculate the route and change the forwarding path of the data packet. Frequent changes in the LSDB will cause data traffic to fluctuate and impact the network.
If the link state information in the LSDB is inaccurate, data packets may fail to reach some network nodes

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 processing link state information
  • Method and device for processing link state information
  • Method and device for processing link state information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] For the process on intermediate system A, please refer to figure 2 , in step SA210, when the change of the non-IP prefix information causes the LSP fragment to be regenerated, the receiving party is notified to suspend the processing of the LSP fragment. When the LSP fragments are regenerated on the intermediate system A, and the reason for regenerating the LSP fragments is the change of the non-IP prefix information, the intermediate system B is notified to suspend the processing of the LSP fragments.

[0042] In an optional implementation manner, the intermediate system A may implement step SA210 in the following manner: regenerate LSP fragments; if all local IP prefix information has not changed, and non-IP prefix information has changed, notify The receiver suspends processing LSP fragments. After the LSP fragments are regenerated, the intermediate system A compares the local information used to regenerate the LSP this time with the local information used when the...

Embodiment 2

[0055] In the second embodiment, the intermediate system A notifies the intermediate system B to suspend the processing of the LSP fragment by setting a flag in the LSP fragment (such as setting the reserved position of the ATT field to 1), and adopts the Hello message carrying the preset update notification field. The message (such as adding a TLV field in the Hello message, and updating the LSDB in the agreed format) informs the intermediate system B to process all LSP fragments received this time.

[0056] For the process on intermediate system A, please refer to Figure 4 . After detecting that the LSP fragments of the local IS system need to be regenerated, the intermediate system A regenerates the LSP fragments.

[0057] The intermediate system A judges whether all the local IP prefix information has not changed and the non-IP prefix information has changed, if not, sends the LSP fragment that needs to be updated according to the normal process; if yes, after setting th...

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 for processing link state information, and the method is applied to an intermediate system. The method comprises the steps that when LSP fragmentations are generated again due to the change of non-IP prefix information, a receiver is informed not to process the LSP fragmentations temporarily; all the LSP fragmentations generated again are sent; the receiver is informed to process all the LSP fragmentations. By means of the technical scheme, the occurrence that due to the regeneration of the LSP fragmentations, an IS-IS router of the receiver is deleted from a routing table, and the dataflow is temporarily interrupted during the process of adding the IS-IS router back to the routing table is avoided.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a link state information processing method and device. Background technique [0002] IS-IS (Intermediate System to Intermediate System Intra-Domain Routing Exchange Protocol, intermediate system to intermediate system intra-domain routing information exchange protocol), as an internal gateway protocol, is widely used due to its good scalability and fast convergence speed. Used in various large networks. Among them, the intermediate system (IS) is the basic unit for generating routes and disseminating routing information in the IS-IS protocol, which is equivalent to a router in TCP / IP. [0003] IS-IS is a routing protocol based on the link state. The working mechanism is that the LSP (Link State Protocol Data Unit, Link State Protocol Data Unit) that describes the link state is diffused between the intermediate systems, and the same link state protocol data ...

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 Applications(China)
IPC IPC(8): H04L12/751H04L45/02
Inventor 周贵鲁陆亦雄
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