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

Controller network loop detection method and device, and controller

A detection method and network loop technology, applied in the field of communications, can solve problems such as broadcast storms, network equipment threats, waste of network resources, etc., and achieve the effect of accurate detection results

Active Publication Date: 2018-03-09
ZTE CORP
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In traditional networks (IP / Ethernet), network connection or configuration errors are likely to cause forwarding loops in the network, causing devices to repeatedly send broadcast, multicast, and unknown unicast packets, resulting in waste of network resources and even lead to network paralysis
[0003] like figure 1 As shown, it is a schematic diagram of a SDN (Software Defined Network or Controller Network, SoftwareDefined Network) network for control / forward separation. Under the SDN solution for control / forward separation, there are the following problems: 1. If the network outside the controller domain (for example, a gateway If a loop occurs on the access (Access) port on the device, a broadcast storm will occur and the network will be paralyzed, posing a great threat to the network device
2. If it is sent to the controller, it will also pose a threat to the performance and security of the control plane. For example, frequent migration of hosts in a loop scenario will be sent to the controller
[0004] In short, under the SDN scheme where control and forwarding are completely separated, there is no way to find out whether there is a loop in the network outside the controller domain. Once a loop occurs, the broadcast storm will cause the network to be paralyzed

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
  • Controller network loop detection method and device, and controller
  • Controller network loop detection method and device, and controller
  • Controller network loop detection method and device, and controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to solve the following problems in the prior art: under the SDN solution with complete separation of control and forwarding, there is no method to find out whether there is a loop in the network outside the domain of the controller. Once a loop occurs, the broadcast storm will cause the network to be paralyzed; the present invention provides A controller network loop detection method, device and controller are provided, and the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The first embodiment of the present invention provides a method for detecting a controller network loop, the flow of the method is as follows figure 2 As shown, including steps S202 to S206:

[0025] S202. The controller sends a detection message with predet...

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 controller network loop detection method and device, and a controller, wherein the method comprises the steps that: the controller sends a detection message having predetermined characteristics to a switch, so that the switch broadcasts the detection message at the access port of extraterritorial equipment; when receiving a message from the switch, the controller judges whether the message has the predetermined characteristics or not; and, when the message has the predetermined characteristics, the controller determines that the extraterritorial network of the controller has a loop. According to the controller network loop detection method and device, and the controller disclosed by the invention, a loop detection mechanism is arranged at the controller side; thedetection message having the predetermined characteristics is sent to the switch, so that the switch broadcasts the detection message; if the controller receives the message from the switch and the message also has the predetermined characteristics, the fact that the extraterritorial network of the controller has the loop is determined; therefore, where the loop occurs can be determined accordingto the related information of the received message; the detection result is accurate; and the problem in the prior art can be solved.

Description

technical field [0001] The invention relates to the communication field, in particular to a detection method, device and controller for a controller network loop. Background technique [0002] In traditional networks (IP / Ethernet), network connection or configuration errors are likely to cause forwarding loops in the network, causing devices to repeatedly send broadcast, multicast, and unknown unicast packets, resulting in waste of network resources and even lead to network paralysis. [0003] Such as figure 1 As shown, it is a schematic diagram of a SDN (Software Defined Network or Controller Network, SoftwareDefined Network) network for control / forward separation. Under the SDN solution for control / forward separation, there are the following problems: 1. If the network outside the controller domain (for example, a gateway If the access (Access) port on the device loops, a broadcast storm will occur and the network will be paralyzed, posing a great threat to the network d...

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): H04L12/26H04L12/935H04L49/111
CPCH04L43/08H04L43/16H04L43/50H04L49/30
Inventor 李波
Owner ZTE CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More