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Gigabit Ethernet passive optical network having double link structure

A technology of passive optical network and bit Ethernet, which is applied in the field of dual links, can solve problems such as inability to communicate, a large amount of time recovery, etc., and achieve the effect of convenient recovery and minimal data loss

Inactive Publication Date: 2005-03-09
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, if a failure occurs in the link established between the OLT 10 and each of the ONUs 20, 22, and 24, communication cannot be performed, and it takes a lot of time to recover from the failure.

Method used

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  • Gigabit Ethernet passive optical network having double link structure
  • Gigabit Ethernet passive optical network having double link structure
  • Gigabit Ethernet passive optical network having double link structure

Examples

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Embodiment Construction

[0035] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the drawings, the same or similar elements are denoted by the same reference numerals even if they are depicted in different drawings. For the sake of clarity and conciseness, message descriptions of known functions and configurations will be omitted here because it may make the technical subject matter of the present invention unclear.

[0036] refer to image 3 , illustrating a preferred embodiment of a Gigabit Ethernet passive optical network addressing link failures according to the present invention. As shown, a Gigabit Ethernet Passive Optical Network (GE-PON) includes an OLT 100 , a plurality of ONUs 220 , 240 and 260 , and first and second optocouplers 120 and 140 . Each of OLT 100 and ONU 220 , 240 and 260 are interconnected by optical cables via first and second optical couplers 120 and 140 .

[0037] In operation, OLT 100 establish...

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Abstract

A Gigabit Ethernet passive optical network (GE-PON) having a double link structure is disclosed. The GE-PON includes an optical line terminal (OLT), a plurality of optical couplers, and a plurality of optical network units (ONUs). The OLT sets up an active link and a standby link in response to a registration request message received over an optical cable. Each of the ONUs is doubly connected with the OLT via the optical cable and is adapted to transmit the registration request message to the OLT, form the active link with the OLT via the optical cable if it receives an active registration message transmitted from the OLT in response to the registration request message, and form the standby link with the OLT via the optical cable if it receives a standby message from the OLT. The optical couplers are disposed between the OLT and each of the ONUs to doubly interconnect them via different optical cables.

Description

[0001] priority statement [0002] This application claims priority to an application entitled "Gigabit Ethernet Passive Optical Network with Dual Link Structure" filed with the Korean Intellectual Property Office on Aug. 26, 2003 and granted serial number 2003-59015 , the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a Gigabit Ethernet Passive Optical Network (GE-PON) having an Optical Line Terminal (OLT) and a plurality of Optical Network Units (ONUs), and more particularly to having a dual-link structure to address the OLT and each GE-PON with link failure between two ONUs, and dual link method using GE-PON. Background technique [0004] A passive optical network (PON) is a communication network that transmits signals to end users via an optical cable network. A PON is composed of a single OLT installed in a communication facility and a plurality of ONUs installed near users. Usually, up to 32 ONUs can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L1/22H04L12/56H04Q11/00
CPCH04Q2011/0081H04L49/357H04Q11/0066H04L1/22H04Q11/0067H04L49/352H04L12/28
Inventor 李民孝金荣锡吴润济朴泰诚
Owner SAMSUNG ELECTRONICS CO LTD
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