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

Notification method, notification system for changing network identity and network equipment

A technology of network identification and network equipment, applied in the field of communication, can solve the problems of wasting storage space and CPU resources, re-establishing services and neighbor relationships, and inability to release resources, and achieves the effect of avoiding restarts

Inactive Publication Date: 2009-12-09
HUAWEI TECH CO LTD
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Dealing with network identity changes by restarting the protocol has adverse effects: 1) After the protocol is restarted, the business and neighbor relationship need to be re-established
On the existing network, the amount of data is large, and re-establishing the service is a very slow process. For example, it takes about 20 minutes for the OSPF process to restart and restore to the original working state; 2) After the protocol is restarted, the network identifier has changed. The created resources may not be released. For example, after the OSPF process is restarted, the previously generated LSA (Link State Advertise) cannot be deleted before the Age (aging time) reaches the Max Age (for example: 3600 seconds), thus wasting Lots of storage space and CPU resources

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
  • Notification method, notification system for changing network identity and network equipment
  • Notification method, notification system for changing network identity and network equipment
  • Notification method, notification system for changing network identity and network equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Each active protocol process running on a router can be regarded as a network device, and each network device within an AS (Autonomous System, autonomous system) has a unique network identifier. This network identifier is very important for routing protocols such as OSPF, ISIS, and MPLS. For OSPF, the network identifier is Router ID. For ISIS, the network identifier is System ID. For MPLS and LDP, the network The ID is the LSR ID, and the network ID is the prerequisite for configuring other protocol commands.

[0023] At present, there are many new technologies in terms of reliable data forwarding, such as: fast convergence and other technologies, but these technologies are powerless when the network identification changes, but sometimes the network identification has to be replaced. Taking OSPF as an example, the change of network identifier mainly affects three aspects, (1) invalidation of neighbor relationship, (2) waste of space by old LSA, and (3) interruption of r...

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 embodiment of the invention relates to the communication field and provides a notification method, a notification system for changing network identity and network equipment. When the network identity of the network equipment is updated, LSA in a notification message is changed according to the network identity of the network equipment, and a link status database and an adjacent list in which identity changing router information is stored are updated, thereby the invention avoids the restarting of the network equipment in the network, resource waste, and the like.

Description

technical field [0001] The invention relates to the field of communication, in particular to a method, system and network equipment for notifying changes of network identifiers. Background technique [0002] Network identification is very important for routing protocols such as OSPF (Open Shortest Path First, shortest path first), ISIS (Intermediate System-to-Intermediate System, a link state routing protocol), MPLS (Multi-Protocol Label Switching), etc. Importantly, in an AS (Autonomous System, autonomous system), two identical network identifiers are not allowed to exist, and if the network identifier changes, other network devices will regard it as a new member. [0003] At present, when dealing with network identification changes, the entire protocol will be restarted, and the business will be interrupted. [0004] For example, the OSPF process changes the network identifier (Router ID) mainly by restarting the protocol. After the OSPF process is restarted, other netwo...

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
IPC IPC(8): H04L12/24H04L12/56H04L29/06H04L12/755
Inventor 董辉魏秀刚傅超
Owner HUAWEI 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