Cable terminal equipment and method for realizing physical channel separation of data stream of EPON (Ethernet Passive Optical Network) by using same

A technology of optical cable terminal equipment and terminal equipment, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve problems such as data packet conflicts, achieve the effect of ensuring mutual non-interference, improving reliability and security

Active Publication Date: 2012-04-25
鞍山国扬通信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The behavior of EPON in the upstream direction is the same as that of a point-to-point network. However, unlike a real point-to-point network, in EPON, all ONUs belong to the same collision domain—data packets from different ONUs if Concurrent transfers can still collide

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  • Cable terminal equipment and method for realizing physical channel separation of data stream of EPON (Ethernet Passive Optical Network) by using same
  • Cable terminal equipment and method for realizing physical channel separation of data stream of EPON (Ethernet Passive Optical Network) by using same
  • Cable terminal equipment and method for realizing physical channel separation of data stream of EPON (Ethernet Passive Optical Network) by using same

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Embodiment Construction

[0024] This embodiment is a preferred implementation mode of the present invention, and other principles and basic structures that are the same or similar to this embodiment are within the protection scope of the present invention.

[0025] Please see attached image 3 , the present invention is a kind of optical cable terminal equipment, namely OLT, in the present embodiment, OLT comprises CPU, PON interface, NNI interface and main control CPU, and PON interface, NNI interface and main control CPU are respectively connected with CPU. In this embodiment, the OLT further includes an NNI board and a PON board, wherein the NNI interface is set on the NNI board, and the PON interface is set on the PON board.

[0026] The present invention also protects a method for realizing separation of physical channels of different data streams in EPON based on the above-mentioned OLT at the same time. When user flow and / or service flow data, the CPU will forward and process according to the ...

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Abstract

The invention discloses cable terminal equipment and a method for realizing physical channel separation of a data stream of an EPON (Ethernet Passive Optical Network) by using the same. The terminal equipment comprises a CPU (Control Processing Unit), a PON (Passive Optical Network) interface, an NNI (Network-Network Interface) and a main control CPU, wherein the PON interface, the NNI and the main control CPU are respectively connected with the CPU. According to the method, an uplink stream classification rule of the PON interface is configured to the CPU on the cable terminal equipment so that the data is transmitted and treated by the CPU according to the stream classification rule when the PON interface receives user stream and / or service stream data; and a downlink stream classification rule of a management opening is configured to the CPU on the cable terminal equipment so that the data according with the downlink stream classification rule is transmitted by the management opening. The invention provides the method for realizing the physical channel separation of different data steams from an ONU (Optical Network Unit) at an OLT (Optical Line Terminal) in the Ethernet passive optical network; and according to the method, user data and service data are not mutually influenced and the reliability and safety of the user data and the service data can be greatly improved.

Description

[0001] technical field [0002] The invention discloses an optical cable terminal device and its usage, in particular to an optical cable terminal device and a method for realizing separation of physical channels of data flow in EPON using the device. Background technique [0003] EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) is a new type of optical fiber access network technology. It adopts point-to-multipoint structure and passive optical fiber transmission to provide various services on Ethernet. It adopts PON technology in the physical layer, uses Ethernet protocol in the link layer, and realizes the access of Ethernet by using the topological structure of PON. Therefore, it combines the advantages of PON technology and Ethernet technology: low cost, high bandwidth, strong scalability, flexible and fast service reorganization, compatibility with existing Ethernet, convenient management, etc. [0004] In EPON, there are only optical f...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/931
Inventor 彭斌
Owner 鞍山国扬通信科技有限公司
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