CN106411395A - Optical network unit topology structure - Google Patents
Optical network unit topology structure Download PDFInfo
- Publication number
- CN106411395A CN106411395A CN201610994099.0A CN201610994099A CN106411395A CN 106411395 A CN106411395 A CN 106411395A CN 201610994099 A CN201610994099 A CN 201610994099A CN 106411395 A CN106411395 A CN 106411395A
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- China
- Prior art keywords
- onu
- node
- unit
- transceiving chip
- host node
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
Abstract
The present invention discloses an optical network unit topology structure. The structure comprises a plurality of ONU units, each ONU unit includes a central processor which is connected with a serial communication module, an Ethernet switching module, a dual-channel uplink light transceiver chip and a single-channel downlink light transceiver chip, and the ONU units are mutually connected to form a hand-in-hand ring network topological structure. When a master node has faults, the node next to the master node is automatically taken as a new master node, and the master node faults cannot influence the normal work of the whole optical network unit so as to improve the stability of the signal transmission.
Description
Technical field
The present invention relates to optical network unit field, specifically a kind of optical network unit topological structure.
Background technology
Optical network unit ONU（Optical Network Unit）It is the terminal device of intelligent acess, its general and OLT
(Optical Line Terminal) uses cooperatively.Optical network unit ONU typically receives and dispatches core by center processor, up-downgoing light
Piece is constituted, and receives the signal of OLT by up transceiving chip, realizes the interactive networking between ONU by descending smooth transceiving chip.
In prior art optical network device, each ONU cell formation becomes network topology structure of handing in hand, and typically with first ONU
Unit receives the signal of OLT as host node, and by host node, signal is transferred to remaining from node successively.When host node occurs
During fault, whole optical network device cannot normal work.
Content of the invention, it is an object of the invention to provide a kind of optical network unit topological structure, is pulled with solving prior art
The problem that the optical network device of hand network topology structure exists.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of optical network unit topological structure it is characterised in that：Including multiple ONU units, each ONU unit includes center respectively
Processor, center processor is connected with serial communication module, ethernet switching module, and connects multigroup RS by serial communication module
Serial ports, multigroup FE interface is connected by ethernet switching module, center processor be also associated with twin-channel up smooth transceiving chip,
Single pass descending smooth transceiving chip, in uplink and downlink light transceiving chip, each passage is connected to PON interface, and each ONU is mono-
In unit, up first passage of light-receiving chip is connected with upper OLT device by corresponding PON interface respectively, and adjacent two
In individual ONU unit, the in the descending smooth transceiving chip of one of ONU unit and the up smooth transceiving chip of another ONU unit
Connected by PON interface between two passages, second passage and least significant end ONU in head end ONU ascending light transceiving chip
Connected by PON interface between the descending smooth transceiving chip of unit, constitute improved topology network architecture hand in hand；This improved hand
In handle topology network architecture, using any one ONU unit as host node, as from node, host node connects remaining ONU unit
Receive the optical signal of upper OLT device, and be transferred to each from node successively, now the center processor control of each from node is right
First passage of up smooth transceiving chip answered does not work, and makes each from node not directly receive the optical signal of upper OLT device,
When host node fault, a rear from node of next-door neighbour's fault host node is as new host node, the center in new host node
Processor controls corresponding up smooth first channels operation of transceiving chip, makes new host node directly receive upper OLT device
Optical signal, and the optical signal of upper OLT device is transferred to each from node successively.
A kind of described optical network unit topological structure it is characterised in that：In each ONU unit, ethernet switching module
It is also associated with Console serial ports.
A kind of described optical network unit topological structure it is characterised in that：In each ONU unit, center processor also connects
It is connected to memory module.
Compared with the prior art, beneficial effects of the present invention are embodied in：
In the present invention, each ONU unit constitutes improved ring network topology structure hand in hand, when host node fault, automatically
Using a rear from node of host node next-door neighbour as new host node, if last ONU unit is as host node fault, with
As new host node, therefore host node fault does not interfere with the normal work of whole optical network unit, carries first ONU unit
The high stability of signal transmission.
Brief description
Fig. 1 is present configuration block diagram.
Specific embodiment
As shown in figure 1, a kind of optical network unit topological structure, including multiple ONU units, each ONU unit includes respectively
Center processor, center processor is connected with serial communication module, ethernet switching module, and is connected many by serial communication module
Organize RS serial ports, multigroup FE interface is connected by ethernet switching module, center processor is also associated with twin-channel up light transmitting-receiving
Chip, single pass descending smooth transceiving chip, in uplink and downlink light transceiving chip, each passage is connected to PON interface, each
In ONU unit, up first passage of light-receiving chip is connected with upper OLT device by corresponding PON interface respectively, adjacent
Two ONU units in, the up smooth transceiving chip of the descending smooth transceiving chip of one of ONU unit and another ONU unit
In connected by PON interface between second passage, second passage and least significant end in head end ONU ascending light transceiving chip
Connected by PON interface between the descending smooth transceiving chip of ONU unit, constitute improved topology network architecture hand in hand；This improvement
Hand in hand topology network architecture in, using any one ONU unit as host node, remaining ONU unit as from node, main section
Point receives the optical signal of upper OLT device, and is transferred to each from node successively, the now center processor control of each from node
Make corresponding up smooth first passage of transceiving chip not work, make each from node not directly receive the light of upper OLT device
Signal, when host node fault, next-door neighbour fault host node a rear from node as new host node, in new host node
Center processor controls corresponding up smooth first channels operation of transceiving chip, makes new host node directly receive upper OLT
The optical signal of equipment, and the optical signal of upper OLT device is transferred to each from node successively.
In each ONU unit, ethernet switching module is also associated with Console serial ports.
In each ONU unit, center processor is also associated with memory module.
Claims (3)
1. a kind of optical network unit topological structure it is characterised in that：Including multiple ONU units, during each ONU unit includes respectively
Heart processor, center processor is connected with serial communication module, ethernet switching module, and is connected multigroup by serial communication module
RS serial ports, multigroup FE interface is connected by ethernet switching module, center processor is also associated with twin-channel up light and receives and dispatches core
Piece, single pass descending smooth transceiving chip, in uplink and downlink light transceiving chip, each passage is connected to PON interface, each
In ONU unit, up first passage of light-receiving chip is connected with upper OLT device by corresponding PON interface respectively, adjacent
Two ONU units in, the up smooth transceiving chip of the descending smooth transceiving chip of one of ONU unit and another ONU unit
In connected by PON interface between second passage, second passage and least significant end in head end ONU ascending light transceiving chip
Connected by PON interface between the descending smooth transceiving chip of ONU unit, constitute improved topology network architecture hand in hand；This improvement
Hand in hand topology network architecture in, using any one ONU unit as host node, remaining ONU unit as from node, main section
Point receives the optical signal of upper OLT device, and is transferred to each from node successively, the now center processor control of each from node
Make corresponding up smooth first passage of transceiving chip not work, make each from node not directly receive the light of upper OLT device
Signal, when host node fault, next-door neighbour fault host node a rear from node as new host node, in new host node
Center processor controls corresponding up smooth first channels operation of transceiving chip, makes new host node directly receive upper OLT
The optical signal of equipment, and the optical signal of upper OLT device is transferred to each from node successively.
2. a kind of optical network unit topological structure according to claim 1 it is characterised in that：In each ONU unit, ether
Net Switching Module is also associated with Console serial ports.
3. a kind of optical network unit topological structure according to claim 1 it is characterised in that：In each ONU unit, center
Processor is also associated with memory module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610994099.0A CN106411395A (en) | 2016-11-11 | 2016-11-11 | Optical network unit topology structure |
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|---|---|---|---|
| CN201610994099.0A CN106411395A (en) | 2016-11-11 | 2016-11-11 | Optical network unit topology structure |
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| CN201610994099.0A Pending CN106411395A (en) | 2016-11-11 | 2016-11-11 | Optical network unit topology structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102927A (en) * | 2017-04-12 | 2017-08-29 | 湖南大学 | A kind of server monitoring management system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656894A (en) * | 2008-08-20 | 2010-02-24 | 华为技术有限公司 | Packet add/drop multiplexing equipment and data transmission method for same |
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2016
- 2016-11-11 CN CN201610994099.0A patent/CN106411395A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656894A (en) * | 2008-08-20 | 2010-02-24 | 华为技术有限公司 | Packet add/drop multiplexing equipment and data transmission method for same |
Non-Patent Citations (1)
| Title |
|---|
| 薛梅: "《一种改进的EPON网络拓扑保护机制》", 《电信科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102927A (en) * | 2017-04-12 | 2017-08-29 | 湖南大学 | A kind of server monitoring management system |
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Application publication date: 20170215 |