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

Linear 1-to-N protection method, device and system for packet transport network

A packet transmission network and protection device technology, applied in the field of communication, can solve problems such as bandwidth waste

Active Publication Date: 2011-08-10
ZTE CORP
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the above 1:1 protection scheme only needs to exchange signaling messages once between the first and last nodes to complete the switchover, the bandwidth waste is serious

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
  • Linear 1-to-N protection method, device and system for packet transport network
  • Linear 1-to-N protection method, device and system for packet transport network
  • Linear 1-to-N protection method, device and system for packet transport network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] see figure 1 , figure 1It is a schematic diagram of a format of a 1-phase protection state coordination (Protection state coordination, PSC) protocol in the prior art. figure 1 The 1-phase PSC protocol format shown includes the following:

[0049] (1) Ver is the version of the 1-phase PSC protocol, usually set to 0;

[0050] (2) The request (Request) flag is used to indicate the command request for protection switching. The currently defined commands are as follows:

[0051] (1111) Clear clear;

[0052] (1110) Lockout protection protection lock;

[0053] (1101) Forced switch forced switching;

[0054] (0110) Signal fault signal failure;

[0055] (0101) Signal degrade signal degradation;

[0056] (0100) Manual switch manual switching;

[0057] (0011) Wait to restore to wait for recovery;

[0058] (0010) Do not revert (DNR) non-reversal;

[0059] (0000) No request empty request;

[0060] (3) Typ is the type of protection switching, and the currently defined typ...

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 linear 1-to-N protection method, a device and a system for a packet transport network, all of which can inform a remote node of implementing 1-to-N protection switching on a working path when the failure of the working path is detected by a target node; the remote node determines the working path requiring 1-to-N protection switching, implements the protection switching, and informs the target node of the working path on which the protection switching is implemented according to the situations of the working paths detected by the remote node and the notice from the target node; and the target node implements 1-to-N protection switching on the working path on which the protection switching is implemented by the remote node according to the notice from the remote node. The method and the device can realize linear 1-to-N protection on the packet transport network, so that the bandwidth is saved. The invention relates to a linear 1-to-N protection method, device and system for a packet transport network.

Description

technical field [0001] The present invention relates to communication technology, in particular to a linear 1:N protection method, device and system for a packet transmission network. Background technique [0002] With the continuous development of packet transport network (packet transport network, PTN) technology, PTN will gradually become the main access technology of various network operators. The PTN defined now includes but is not limited to the following networks: MPLS, T-MPLS, MPLS-TP, Ethernet, etc., and its network protection is of great significance. [0003] RFC5654 proposes that MPLS-TP must support pseudowire (pseudowire, PW) and label switching path (label switching path, LSP) point-to-point (point to point, P2P) bidirectional 1:N linear protection switching, and must support point-to-multipoint ( point to multi point, P2MP) unidirectional 1:N protection switching. [0004] Among them, unidirectional protection means that only the services in the affected di...

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): H04L12/24
CPCH04L41/0609H04L45/28H04L45/22
Inventor 张飞代雪会吴波
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