Check patentability & draft patents in minutes with Patsnap Eureka AI!

Loopback detection method and device and network equipment containing the device

A technology of loopback detection and network equipment, which is applied in the field of computer networks to achieve the effect of avoiding hardware costs

Inactive Publication Date: 2016-07-20
PHICOMM (SHANGHAI) CO LTD
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the PC cannot communicate with the server normally.

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
  • Loopback detection method and device and network equipment containing the device
  • Loopback detection method and device and network equipment containing the device
  • Loopback detection method and device and network equipment containing the device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0031] For the loopback detection of a single port of a network device, a special message is sent on the port and whether the message can be returned from the port to determine whether there is a loopback on the port.

[0032] Therefore, a sending and receiving device is needed to send the special message, receive the message from the same port, and judge whether the sent message is consistent with the received message.

[0033] According to the present invention, if figure 2 As...

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 provides a method and device for detecting whether there is loopback on the port of a piece of network equipment, and the network equipment containing the device. The method provided by the invention comprises following steps of sending a message comprising a network equipment MAC address as a source MAC address, a port number and a VLAN serial number, through the port of the network equipment; and comparing the message received at the same port with the sent message, wherein if the source MAC addresses, the port numbers and the VLAN serial numbers of the messages are completely the same, there is the loopback on the port.

Description

technical field [0001] The invention relates to the field of computer networks, in particular to loopback detection of network equipment. Background technique [0002] In Layer 2 switching, packet forwarding is performed through MAC address addressing. Layer 2 devices learn MAC addresses through source MAC address learning. That is: when a port receives a packet with an unknown source MAC address, it will add this MAC to the receiving port, so that subsequent packets with this MAC address as the destination can be forwarded directly, that is, learn once and forward multiple times. [0003] When the new source MAC finds that the MAC has been learned on the Layer 2 device, but the source port is different, it will modify the source port of the original MAC address, that is, move the original MAC address to a new port. [0004] Therefore, when there is a loopback on the link, it will eventually be found that all the MAC addresses in the entire Layer 2 network have been moved ...

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): H04L12/26H04L12/705H04L12/751H04L45/02H04L45/18
CPCH04L43/10H04L45/08H04L45/18
Inventor 程如亮
Owner PHICOMM (SHANGHAI) CO LTD
Features
  • R&D
  • 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

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com