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

Distributed NAT duplicated hot-redundancy traffic switching system and method

A dual-machine hot backup and traffic switching technology, which is applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of business traffic connectivity and the large impact of business traffic connectivity, and reduce traffic interruption. risk, increased connectivity, and effects of increased stability and reliability

Inactive Publication Date: 2018-09-25
ZTE CORP
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of service switching of the whole machine has a great influence on the connectivity of business traffic. Therefore, how to solve the problem of service traffic connectivity caused by the switching of the whole machine to the existing individual S-CPUs becomes the subject of the present invention. Technical issues resolved

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
  • Distributed NAT duplicated hot-redundancy traffic switching system and method
  • Distributed NAT duplicated hot-redundancy traffic switching system and method
  • Distributed NAT duplicated hot-redundancy traffic switching system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] In order to solve the problem existing in the existing dual-system hot backup deployment of distributed NAT services, when individual S-CPUs fail to work normally, the entire machine switches, resulting in the traffic services on the original normal S-CPUs also switching. For the problem of the risk of interruption, the embodiment of the present invention provides a distributed NAT dual-machine hot backup traffic switching sy...

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 discloses a distributed NAT duplicated hot-redundancy traffic switching system and method. The system comprises: a master, a slave, and a router connected to a public network, wherein the master is used for issuing high-priority routing to the router based on a configured NAT conversion table of each service CPU in the local, and in the case of a fault of a certain service CPU of themaster, sending a notification message of the fault of the service CPU to the slave and canceling the public network routing belonging to the faulty service CPU; and the slave is used for issuing low-priority routing to the router based on the configured NAT conversion table of each service CPU in the local, and switching a service table entry state of the service CPU corresponding to the faultyservice CPU in the master into a master state upon receiving the notification message; and the NAT conversion tables of the service CPUs in the master and the slave are the same. By adoption of the distributed NAT duplicated hot-redundancy traffic switching system and method disclosed by the invention, the traffic switching number is reduced, the risk of traffic interruption is reduced, and the connectivity of service traffic switching is improved.

Description

technical field [0001] The invention relates to the technical field of dual-machine hot backup networking, and in particular to a distributed NAT (Network Address Translation, Network Address Translation) dual-machine hot backup traffic switching system and method. Background technique [0002] With the gradual exhaustion of IPv4 addresses, the use of NAT technology is becoming more and more extensive, and the requirements for the speed and capacity of NAT conversion are getting higher and higher. In this case, distributed deployment of NAT becomes inevitable for large-capacity sites. choose. Distributed NAT will allocate the IP address resources in the address pool to each service CPU (S-CPU). A distributed device is often deployed in the environment to form a dual-machine hot standby environment. [0003] In the current networking application, dual-system hot backup uses the Virtual Router Redundancy Protocol (VRRP for short) to carry out master-standby election between ...

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): H04L12/703H04L29/12H04L12/721H04L45/28
CPCH04L45/28H04L45/38H04L61/255H04L61/00
Inventor 杨鹏
Owner ZTE CORP
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