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

Method and device for recovering tunnel path

A tunnel and path technology, applied in the field of communication, can solve the problem of high operating overhead of network equipment, and achieve the effect of reducing operating overhead

Inactive Publication Date: 2015-03-04
ZTE CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above analysis, the present invention aims to provide a method and device for restoring the tunnel path, so as to solve the problem of relatively large operating overhead for network equipment when re-optimizing the tunnel path in the prior art

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 device for recovering tunnel path
  • Method and device for recovering tunnel path
  • Method and device for recovering tunnel path

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principle of the present invention.

[0036] Firstly, the method described in the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0037] Such as image 3 as shown, image 3 It is a schematic flow chart of the method described in the embodiment of the present invention, which may specifically include the following steps:

[0038] Step 301: Configure predetermined parameters for the primary path of the local tunnel. The predetermined parameters indicate that when the primary path is an available path, the local tunnel prefers the primary path as the current path. If the local tunnel has selected other paths, determine the local p...

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 device for recovering a tunnel path. The method comprises the following steps of: abstracting a main path of a local tunnel as a network element mode, establishing a topological network element directed acyclic graph, and managing the local tunnel based on the main path in the topological network element directed acyclic graph; when the local tunnel of a to-be-recovered route is determined, performing exploration calculation on the main path of the local tunnel of the to-be-recovered route according to the topological network element directed acyclic graph; and when the exploration calculation is successful, performing path re-optimization on the local tunnel of the to-be-recovered route based on the main path management. According to the method and the device, the main path is compressed through the hierarchical structure of the topological network element directed acyclic graph, and the tunnel is managed by using the main path, so that the running overhead of submitting the calculation to the network equipment by the tunnel path is reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for restoring a tunnel path. Background technique [0002] IP (Internet Protocol, Internet Protocol) / MPLS (Multi Protocol Label Switch, Multi Protocol Label Switching), MPLS-TP (Multi Protocol Label Switch-Transport Profile, Multi Protocol Label Switching based on transport architecture), GMPLS ( In networks such as General Multi Protocol Label Switch, TE (Traffic Engineering, traffic engineering) LSP (Label Switching Path, label switching path) is created using RSVP-TE (Resource Reservation Protocol-TE, based on traffic engineering resource reservation protocol), and adopts CSPF (constraint shortest path computation, constraint shortest path computation) resource reservation path is called a tunnel. [0003] Such as figure 1 As shown, when the user deploys a tunnel from A to C, the user will configure the tunnel constraint path {A->B->C} at the he...

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 Patents(China)
IPC IPC(8): H04L12/703H04L12/753H04L12/46H04L45/28H04L45/24
Inventor 杨帆
Owner ZTE CORP