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Method for achieving Linktrace of multi-protocol label switching-transmission parameter (MPLS-TP) operation, administration and maintenance (OAM) on basis of field programmable gata array (FPGA)

An FPGA and engine technology, applied in the field of Linktrace based on FPGA to realize MPLS-TP OAM, can solve problems such as CPU load increase, and achieve the effect of ensuring integrity

Active Publication Date: 2013-06-26
上海博达通信科技有限公司
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Problems solved by technology

[0007] The present invention aims at the problem that the load of the CPU rises sharply when a large number of Linktrace response messages impact the CPU in the existing Linktrace response message processing technology, and provides a method for implementing Linktrace of MPLS-TP OAM based on FPGA

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  • Method for achieving Linktrace of multi-protocol label switching-transmission parameter (MPLS-TP) operation, administration and maintenance (OAM) on basis of field programmable gata array (FPGA)
  • Method for achieving Linktrace of multi-protocol label switching-transmission parameter (MPLS-TP) operation, administration and maintenance (OAM) on basis of field programmable gata array (FPGA)
  • Method for achieving Linktrace of multi-protocol label switching-transmission parameter (MPLS-TP) operation, administration and maintenance (OAM) on basis of field programmable gata array (FPGA)

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[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0024] see figure 2 , which shows the working model of Linktrace using MPLS-TP OAM following the present invention. As can be seen from the figure, in the present invention, the exchange chip no longer forwards the received Linktrace response message to the software of the CPU for processing, but forwards it to the MPLS-TP OAM engine implemented by the FPGA for processing.

[0025] In the present invention, the MPLS-TP OAM engine function is realized based on the FPGA, and the processing of the linktrace corresponding message is realized thereby, effectively avoiding the problem that the CPU load increases when processing a large number of Linktrace response messages.

[0026] see image 3 , when the present invention processes the Linktrace ...

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Abstract

The invention discloses a method for achieving Linktrace of multi-protocol label switching-transmission parameter (MPLS-TP) operation, administration and maintenance (OAM) on the basis of a field programmable gata array (FPGA). The method includes the following steps: (1) an exchange chip receives a Linktrace response message which is forwarded to the FPGA in a system; (2) an MPLS-TP OAM engine achieved by the FPGA is used for processing the Linktrace response message, and processing results are placed in a special memory of the OAM engine to be stored; (3) and a central processing unit (CPU) reads and displays directly from the special memory of the OAM engine. Due to the method for achieving the Linktrace of the MPLS-TP OAM on the basis of the FPGA, the CPU cannot be impacted when the system receives a large amount of Linktrace response messages.

Description

technical field [0001] The invention belongs to the technical field of packet transport network (PTN, Packet Transport Network) in data communication technology and data transmission technology, and specifically relates to a method for realizing Linktrace of MPLS-TP OAM based on FPGA. Background technique [0002] A Packet Transport Network (abbreviated as PTN hereinafter) is a telecommunications transmission network, which is a converged technology. In order to realize the maintainability and manageability of the PTN network, the PTN technology incorporates some characteristics and functions of OAM similar to SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy). In PTN technology, this SDH-like OAM (Operation Administration and Maintenance, operation-Operation, management-Administration, maintenance-Maintenance) function is collectively referred to as MPLS-TP OAM, which is a series of A collective term for operations, management, and maintenance means, tools,...

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Application Information

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IPC IPC(8): H04L12/723H04L12/801H04L45/50
Inventor 汪革苟利平李一水刘流汗
Owner 上海博达通信科技有限公司
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