Unlock instant, AI-driven research and patent intelligence for your innovation.

Flow switching method and device

A technology for traffic switching and switching groups, applied in the field of communication, can solve the problems of link congestion, inability to guarantee network performance, and the switching process takes a long time to achieve the effect of ensuring network performance and avoiding link congestion.

Active Publication Date: 2016-02-17
HUAWEI TECH CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the forwarding node that receives the switching command immediately switches to the new forwarding table, and the forwarding node that does not receive the switching command continues to use the old forwarding table. In this way, the switching process takes a long time and also causes link congestion. possible, network performance cannot be guaranteed
[0008] In summary, the existing handover methods may cause link congestion, and a new handover method is urgently needed

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
  • Flow switching method and device
  • Flow switching method and device
  • Flow switching method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] In order to enable those skilled in the art to better understand the solution of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation manners.

[0072] Before introducing the technical solutions of the embodiments of the present invention, the specific application scenarios of the embodiments of the present invention will be explained first.

[0073] In an SDN network, the Controller can perform an overall routing calculation for each network topology, and send the calculation results corresponding to each network topology to the forwarding node; in addition, the Controller can also control each forwarding node according to the traffic switching requirements. The node performs forwarding table switching, so that the forwarding node uses the forwarding table that meets the requirements to forward traffic.

[0074] The following explains the existing traff...

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 provides a flow switching method and device. The method includes the following steps that: mapping relationships between network performance parameters and forwarding node switching sequences are established, wherein the network performance parameters include pre-switching link utilization rate and post-switching link utilization rate; when flow switching is required, the current performance parameter of a network is obtained, and a switching sequence corresponding to the current performance parameter is determined according to the mapping relationships; and a switching instruction is issued to forwarding nodes according to the switching sequence, so that the forwarding nodes can carry out flow switching orderly under control. With the flow switching method and device adopted, flow switching can be realized orderly, and link congestion in a switching process can be avoided, network performance can be ensured.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a traffic switching method and device. Background technique [0002] Software Defined Network (Software Defined Network, SDN) is a new type of network architecture, which realizes flexible control of network traffic by separating the control plane and data plane of network equipment. [0003] When configuring routing, the centralized control point Controller in the SDN network can calculate the overall network routing according to the network environment, and send the calculated forwarding table to the corresponding forwarding node, so that the forwarding node can use it to receive to the forwarding table for traffic forwarding. [0004] In the actual application process, SDN can support multiple sets of network topologies, so the Controller can calculate the forwarding table of each forwarding node under each topology, and send it to the corresponding forward...

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): H04L12/741H04L12/801H04L45/74H04L45/02
CPCH04L45/021H04L45/025H04L45/64H04L41/0816H04L41/083H04L43/0882H04L47/127
Inventor 张民贵李振斌
Owner HUAWEI TECH CO LTD