Method and system for quickly detecting connectivity of link

A connectivity and link technology, applied in the field of network communication, which can solve the problems of inability to provide, unable to meet the 50ms handover requirement, and complex Eth-oam protocol interaction process.

Active Publication Date: 2009-09-02
ZTE CORP
View PDF0 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The interaction process of the Eth-oam protocol is relatively complicated, requiring the participation of the CPU, and the detection time is at the second level, which cannot meet the switching requirement of 50ms
The BFD protocol is mainly used for

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
  • Method and system for quickly detecting connectivity of link
  • Method and system for quickly detecting connectivity of link
  • Method and system for quickly detecting connectivity of link

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0034] Such as figure 1 Shown is a block diagram of the system structure of the present invention. The system of the present invention includes a local system and a peer system that exchange CCM messages with each other. The local system further includes a network processor with memory and a local CPU. The network processor receives from Configure the parameters of the local CPU and send alarm information to the local CPU.

[0035] Such as figure 2 Shown is a schematic diagram of the local MEP table in the present invention. The local MEP table contains n entries, and the information in each entry is as follows:

[0036] 1) Maid is specified by the CFM standard. The field used to identify the MA carried in the CCM message is unique within an md field.

[0037] 2) Mepid is specified by the CFM standard. The field used to identify the MEP carried in t...

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 method and a system for quickly detecting connectivity of a link. The system comprises a network processor with a memory and a local terminal CPU. Link CFM protection is configured at a local terminal system and an opposite terminal system respectively, and sending and detecting periods of CCM message are set; the local terminal system and the opposite terminal system periodically send the CCM message carried with self MAId and MepId in each sending period respectively, and simultaneously detect the CCM message sent by an opposite terminal; the local terminal system or the opposite terminal system compares the attributes of the CCM message and a local configured remote terminal MEP, and adds 1 to the CCM message count of the opposite terminal if the attributes are consistent, otherwise adds 1 to the error message count; and whether the CCM message count of the opposite terminal exists in each detecting period is detected, the link is disconnected when the CCM message count is 0, and the link is connected when the CCM message count is more than 0. The method and the system need no CPU to participate, and periodically detect the condition of the link by hardware.

Description

Technical field [0001] The present invention relates to the field of network communication, in particular to a method and system for quickly detecting link connectivity. Background technique [0002] The trend of the development of the bearer network to all-IP requires that the IP network must solve the reliability problem. However, in the traditional IP network, fault detection and protection response are all seconds, which cannot meet the basic requirements of carrier-class Ethernet 50ms protection switching. The prerequisite for handover is to be able to quickly detect failures. The currently proposed protocol messages for direct link failure detection include BFD proposed by IETF and eth-oam based on IEEE802.3ah. The Eth-oam protocol interaction process is more complicated and requires CPU participation. The detection time is in the second level, which cannot meet the 50ms switching requirement. The BFD protocol is mainly used for IP routing protection, and its state mechanis...

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): H04L12/26H04L12/24
Inventor 张胜友
Owner ZTE CORP
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