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

High speed switchover route using automatic protective switchover and its switchover method

A technology of automatic protection switching and router, which is applied in multiplex communication, time division multiplexing system, time division multiplexing selection device, etc., and can solve problems such as long time

Inactive Publication Date: 2003-09-10
NEC CORP
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it takes a long time until IP packets can be transmitted again after APS switching

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
  • High speed switchover route using automatic protective switchover and its switchover method
  • High speed switchover route using automatic protective switchover and its switchover method
  • High speed switchover route using automatic protective switchover and its switchover method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Hereinafter, the high-speed switching router using APS of the present invention will be described in detail with reference to the accompanying drawings. image 3 and 4 A system of the present invention with a high-speed switching router using APS is shown.

[0037] In the high-speed switching router using APS of the present invention, two POS (packet over SONET / SDH) using the APS (Automatic Protection Switching) (1+1) method are managed as one logical interface. Therefore, a high-speed fail-safe routing function can be realized. In this configuration, the IP (Internet Protocol) address never changes when running the failsafe routing function using APS because PPP uses a single link. As a result, since IPCP (Internet Protocol Control Protocol) renegotiation and route recalculation for PPP (Point-to-Point Protocol) are unnecessary, a high-speed fail-safe routing function can be realized.

[0038] image 3 A communication line structure of a system to which a high-spee...

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

In a method of switching a current use communication line between first and second communication lines provided between first and second units, link data is previously held in a first physical interface for the first communication line as the current use communication line and a second physical interface for the second communication line. The current use communication line is switched from the first communication line to the second communication line when a fault is detected in relation to the first communication line. The second communication line is established as the current use communication line for data transfer between the first and second units based on the link data.

Description

technical field [0001] The invention relates to a high-speed switching router using APS (Automatic Protection Switching) and a high-speed switching method of communication lines. technical background [0002] A conventional high-speed switching router using APS has a POS (Packet over SONET / SDH) interface. In conventional routers, there are two conventional methods in the fail-safe routing function of SONET (Synchronous Optical Network) / SDH (Synchronous Digital Hierarchy) using the APS(1+1) method. That is, in one conventional approach, by combining two such as figure 1 router as shown to operate the APS, and in another conventional method, as Figure 2A and 2B A router is shown to operate the APS. [0003] In conjunction with the above description, Japanese Laid-Open Patent Application (JP-A-Heisei 11-331170) is known as a first conventional example. In the first conventional example, a currently used system link and a backup system link for backing up the currently use...

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): H04L45/24H04J3/00H04L1/22H04Q11/04
CPCH04J2203/006H04L1/22H04L69/14H04L29/06H04L45/28H04J2203/0082H04L45/22H04L9/40
Inventor 细井教克
Owner NEC CORP