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

Transport system, central control computer, and transport method

A centralized control and transmission system technology, applied in the field of transmission systems, can solve problems such as undetectable fault points

Inactive Publication Date: 2013-10-30
HITACHI LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the technology disclosed in Non-Patent Document 1 designates a device in the middle of the path as a turning point like LSP-ping, and cannot detect a failure point from the insertion point to the turning point.

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
  • Transport system, central control computer, and transport method
  • Transport system, central control computer, and transport method
  • Transport system, central control computer, and transport method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ）

[0044] use Figure 1 to Figure 16 The first embodiment of the present invention will be described.

[0045] figure 1 It is an explanatory diagram of the configuration of the transmission system according to the first embodiment of the present invention.

[0046] The IP / MPLS network 20A is composed of IP / MPLS routers (communication devices) 200A, 200B, 200E, and 200F. The IP / MPLS network 20B is composed of IP / MPLS routers 200C, 200D, 200G, and 200H. The IP / MPLS network 20A and 20B are collectively referred to as the IP / MPLS network 20 . In addition, the IP / MPLS routers 200A to 200H are collectively referred to as the IP / MPLS router 200 .

[0047] The MPLS-TP network (transport network) 30 is composed of MPLS-TP devices (transport devices) 300A to 300D (hereinafter collectively referred to as MPLS-TP devices 300 ). The MPLS-TP network 30 is the core network of the IP / MPLS network 20 . Also, the MPLS-TP devices 300A to 300D constituting the MPLS-TP network 30 are connected ...

no. 2 Embodiment approach ）

[0171] use Figure 17 and Figure 18 A second embodiment of the present invention will be described.

[0172] In the first embodiment, the centralized control server 100 instructs to execute LB processing between the MPLS-TP device 300 at the starting point and the MPLS-TP device 300 at the end point of the path in the MPLS-TP network 30 to be connected. In the present embodiment, the centralized control server 100 executes LB processing between all the MPLS-TP devices 300 on the path from the MPLS-TP device 300 serving as the origin to the MPLS-TP network 30 to be confirmed for connection. Thereby, connection confirmation with higher reliability can be performed.

[0173] Figure 17 It is explanatory drawing of the structure of the transmission system of 2nd Embodiment of this invention. Figure 17 The transmission system shown is the same as that of the first embodiment figure 1 The transmission system shown has the same device configuration, but the MPLS-TP device 300 ...

no. 3 Embodiment approach ）

[0189] use Figure 19 A third embodiment of the present invention will be described.

[0190] In this embodiment, in the processing specified in the third profile, the centralized control server 100 does not instruct the MPLS-TP device 300A to execute the LB processing, but uses the path of the MPLS-TP network 30 to be connected to confirm the request. The packet is sent to the IP / MPLS router 200 serving as the return point. In addition, the connection of the path in the MPLS-TP network 30 can be confirmed by the response packet of the request packet. Accordingly, it is possible to confirm connectivity while reducing the processing load on the centralized control server 100 and the MPLS-TP device 300 .

[0191] Figure 19 This is a flowchart of processing defined by the third profile generated by the centralized control server 100 according to the third embodiment of the present invention.

[0192] of this embodiment Figure 19The processing stipulated in the third agreem...

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

A transport system comprises a plurality of transport devices 300A - 300D to be and a central control computer 100. The transport devices 300A - 300D are coupled to a first communication path which is established autonomous and decentralized manner by communication devices 200A - 200H. The central control computer 100 establishes a second communication path in a transport network including the plurality of transport devices 300A - 300D, and sets a correspondence between the first communication path and the second communication path to one of the plurality of transport devices 300A - 300D. One of the plurality of transport devices 300A - 300D transmits a coupling check request for checking coupling from the communication device 200A - 200H to a loopback point to the central control computer 100. The central control computer 100 transmits, depending on a result of the check of the coupling executed by the one of the plurality of transport devices 300A - 300D, a coupling check response to one of the plurality of transport devices 300A - 300D which has transmitted a coupling check request.

Description

technical field [0001] The present invention relates to a transmission system in which a first communication path constructed autonomously and distributedly and a second communication path constructed through centralized control are connected, and more particularly relates to a transmission system for confirming the connection of the communication paths. Background technique [0002] The requirements for network communication quality assurance services are getting higher and higher. The communication quality assurance service refers to a communication service in which a communication path (path) satisfying the user's request is constructed in advance on the network side for the frequency band and communication delay required by the user, and the constructed communication path is provided. [0003] An IP / MPLS (Internet Protocol / Multi Protocol Label Switching) network has been widely used as a conventional backbone network for providing communication quality assurance services...

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): H04L12/723H04L45/50
CPCH04L45/04H04L45/50H04L43/18H04L45/22
Inventor 真下大辅高桥清隆柴田刚志
Owner HITACHI 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