Apparatus and method of real-time recovering service

A service and router technology, applied in the field of network communication, can solve the problems of inability to guarantee VRRP convergence, long convergence time, and inability to meet real-time communication, and achieve the effect of overcoming long convergence time

Active Publication Date: 2006-11-15
北京知方知识产权管理有限公司
View PDF0 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the minimum time granularity of the HELLO message is usually 1 second, it takes at least 3 seconds for the standby router to perceive the link failure status. This convergence time is too long for real-time services that need to quickly detect the link failure status. The transmission is processed in the control plane, so simply adopting the method of reducing the time interval for sending VRRP packets will waste a lot of system resources on the one hand, and on the other hand, it cannot guarantee that VRRP will converge within 50ms in a distributed system. Meet the requirements of real-time communication

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
  • Apparatus and method of real-time recovering service
  • Apparatus and method of real-time recovering service
  • Apparatus and method of real-time recovering service

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] BFD (Bidirectional Forwarding Detection) is a router fault detection protocol gradually developed from the basic transmission technology. It can detect faults at all layers of the network, and can be used to detect Ethernet, Multi-Protocol Label Switching (MPLS) paths, Generic routing encapsulation and multiple types of transport correctness including IPSec (IP Internet Security Protocol) tunneling.

[0031] In essence, BFD is a high-speed independent HELLO protocol that can establish a peer-to-peer relationship with adjacent systems. Then, each system monitors the BFD rate from other systems at a negotiated rate, and the monitoring rate can be incremented in milliseconds. set up. When a peer system does not receive a preset number of packets, it infers that the software or hardware infrastructure protected by BFD has failed, whether the infrastructure is a label-switched path, another type of tunnel, or an Ethernet network.

[0032] BFD works like figure 2 As shown,...

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 relates to a real-time service recovering device and method in network communication technical field. Based on BFD (bidirectional forward detection) technique, it provides a VRRP (Virtual Router Redundancy Protocol) fast converging method, detecting master router failure by BFD to compose VRRP message and transmitting the VRRP message to VRRP module, and implementing fast switching master and backup routers. And it implements combination of BFD and VRRP, detects failure by BFD, able to implement fast switching backup router into master router, and overcoming the defect of long converging time of the current VRRP.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a device and method for real-time service restoration. Background technique [0002] In the existing network system, when the main router fails, in order to restore the service as soon as possible and ensure the continuity and reliability of the communication, the VRRP (Virtual Routing Redundancy Protocol) protocol is often used to realize the switching operation between the main and standby routers. . This protocol ensures that when the next-hop router of the host fails, it can be replaced by another router in the backup state in time, so that when the device fails, the service can be automatically restored as soon as possible. [0003] The working principle of the VRRP protocol is as follows: a group of VRRP routers work together to form a virtual router. The virtual router appears externally as a logical router with a unique fixed IP address and MAC address. R...

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): H04L29/06H04L12/24
Inventor 杨建军
Owner 北京知方知识产权管理有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap