CN100382521C - Method of supporting multi kilomega ethernet terminal photoelectric multiplex - Google Patents
Method of supporting multi kilomega ethernet terminal photoelectric multiplex Download PDFInfo
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- CN100382521C CN100382521C CNB03121391XA CN03121391A CN100382521C CN 100382521 C CN100382521 C CN 100382521C CN B03121391X A CNB03121391X A CN B03121391XA CN 03121391 A CN03121391 A CN 03121391A CN 100382521 C CN100382521 C CN 100382521C
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Abstract
The present invention discloses a method of supporting multi kilomega Ethernet terminal photoelectric multiplex. The method comprises the following steps: step a, each user link is simultaneously provided with a user terminal which is corresponding to an electrical interface and a user terminal which is corresponding to an optical interface; step b, according to signals for detecting the states of the current links of the two user terminals in real time, the current valid user terminal is confirmed, the valid user terminal which is confirmed is set as an enable terminal, and data information of the current user link is transmitted by the enable terminal. When the method of the present invention is adopted, an Ethernet device terminal can simultaneously support physical media of an electrical interface and an optical interface, and the switchover of the same user link between the electrical interface and the optical interface is flexibly realized.
Description
Technical field
The present invention relates to a kind of multiplexed port technology, refer to a kind of method that in many gigabit ethernet ports equipment, realizes optical port and electric multiplexed port especially.
Background technology
Open day by day along with professional explosive growth of Internet protocol (IP) and telecom operation market, no matter be that conventional telecommunications operator or startup carrier have mostly been selected ethernet technology, utilize the customer access equipment of Ethernet switch as residential quarters, broadband and business premises.Along with user's demand growing to service bandwidth, and the standardized realization of ten thousand mbit ethernets, the demand of gigabit ethernet port is amplified gradually, and especially the gigabit Ethernet electrical interface directly uses as user interface.
On traditional gigabit port switch device, each gigabit port on the switch or connect as the gigabit electrical interface, otherwise being used for the gigabit optical interface connects, and optical interface and electrical interface and link layer interface are one to one.That is to say that in traditional gigabit port ethernet device, optic electric interface is to pre-determine and changeless.
Continuous development along with application-specific IC (ASIC), a kind of PORT Plus (PORT+) technology has been proposed, this technology is to utilize the support of ASIC to photoelectric interface duplex, in many gigabit ports switch, realize the photoelectric multiplexing of a plurality of ports, specifically be exactly: on a switch, make one or more gigabit links support the physical layer medium of 1000Base-T user port and 1000Base-X user port simultaneously, and, can dispose the current effective type of physical port automatically according to the connection situation of link.Here, support that the port of 1000Base-T is gigabit interface modular converter (GBIC, Gigabit InterfaceConverter) electrical interface, support that the port of 1000Base-X is miniature pluggable module (SFP, SmallForm_Factor Pluggable) optical interface, this multiplex technique can farthest satisfy the demand that the user connects the different physical layer medium of same Ethernet interface.
At present, the Ethernet switch that can realize the PORT+ technology is by using GBIC electrical interface (1000Base-T) module to support the gigabit electrical interface; Or pass through to use SFP optical interface (1000Base-X) module to support the gigabit optical interface, thereby realize the application of optic electric interface on the same port.But in actual applications, though the same port for ethernet device can be supported optic electric interface simultaneously, use i.e.: the same port support grafting optical interface module or the electrical interface module of ethernet device, a kind of interface module when but optic electric interface can not be supported but synchronization can only be pegged graft.So, when realizing opto-electronic conversion, also need to change interface module, or by external photoelectric conversion device, the photoelectricity of finishing ethernet user's interface is adaptive.In the prior art, no matter be to use GBIC, SFP interface module, still adopt external photoelectric conversion device, price all compares expensive, thereby has improved the cost that network is set up and safeguarded; In addition, must realize by changing interface module, will interrupt user link like this, thereby cause the decline of communication failure and service quality because photoelectricity switches.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of supporting many gigabit ethernet ports photoelectric multiplexing, can support simultaneously to realize the switching of same user link between optic electric interface flexibly on the basis of electrical interface and optical interface physical layer medium at the ethernet device port.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method of supporting many gigabit ethernet ports photoelectric multiplexing, this method comprises the steps:
A. adopt physical layer application-specific IC, for every user link is provided with the user port of a corresponding gigabit electrical interface and the user port of a corresponding gigabit optical interface simultaneously with line diagnosis and multiplexed port function;
B. according to real time detection signal, judge whether currently used user port remains valid, if determine that then currently used port is the validated user port to two current Link States of user port; Otherwise another user port that automaticallyes switch is currently used user port, and determines that the user port after this switching is the validated user port;
C., it is the enable port that determined validated user port is set, and transmits the data message of active user's link with this enable port.
Described step b further comprises: when system initialization, determine that the effective user port of current elder generation is the validated user port.
In the such scheme, the user port of described corresponding electrical interface is the RJ45 port.The user port of described corresponding optical interface is gbic port or SFP port.
Therefore, the method of many gigabit ethernet ports of support photoelectric multiplexing provided by the present invention, same user link is provided with two kinds of available physical interfaces simultaneously, according to real-time detection to port status, determine current enable port, thereby provide maximum flexibility for the user uses many gigabit ports ethernet device, and reduced the expensive cost that uses conventional art to need, also avoided in the conventional art owing to of the influence of switch test broken link to business.
Description of drawings
Fig. 1 forms structure one embodiment schematic diagram for the ethernet device of realizing the inventive method.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Core concept of the present invention is: for each bar user link, provide the user interface of two physics simultaneously: the user port of a corresponding electrical interface, the user port of a corresponding optical interface; Then, monitor two line statuss that user port is current in real time,, and then enable this user port or carry out optic electric interface to switch with definite effective port of current demand signal.
Carrying out photoelectric multiplexing with the port of a gigabit Ethernet user link is example, adopts the physical layer application-specific IC (PHY ASIC) with line diagnosis and multiplexed port function in the present embodiment, and method of the present invention is achieved in that
At first, referring to shown in Figure 1, on the ethernet device of gigabit port more than, because PHYASIC 12 wherein supports 1000BASE-T interface and 1000BASE-SX interface simultaneously, therefore two user ports of corresponding optical interface of difference and electrical interface externally are set simultaneously, the user can use different port media by directly connecting netting twine or optical fiber, one of these two user port are as common port (port), another then as the port of supporting multiplexing function, can identify by port+ (port plus).In the present embodiment, as the user port of supporting the 1000BASE-T electrical interface, gbic port 11 is as the user port of supporting the 1000BASE-SX optical interface, and setting RJ45 port one 0 is port in the present embodiment with RJ45 port one 0, and gbic port 11 is port+.Described RJ45 port one 0 and gbic port 11 are connected on the PHY ASIC 12 simultaneously, and with among TX/RX signal and real time detection signal (signal detect) the input PHY ASIC 12, wherein the detection signal of RJ45 port is included in the TX/RX signal.Afterwards, utilize the line diagnosis function of this PHY ASIC 12 to monitor the current line status of RJ45 port one 0 and gbic port 11 in real time, when which port signal just enables this port effectively the time earlier, and guarantee this elder generation effectively port be not subjected to the influence of the effective port in back; If two ports simultaneously effectively, two ports are inserted with cable and optical fiber simultaneously when powering on such as system, because the mode for the port signal detection is generally the repeating query mode, so always detect the signal of certain port earlier, the earlier effective port of same enable detection signal this moment.Certainly, in actual applications, the user port of set corresponding optical interface can also adopt other gigabit optical interface form, such as SFP or the like.
Based on the function of said structure and PHY ASIC, the present invention realizes that the process of photoelectric interface duplex and switching may further comprise the steps:
1) when system initialization,, determines which port signal earlier effectively, enables this port then, and this enable port is used to transmit the data message of active user's link by real-time monitoring to optical interface and electrical interface current detection signal.
Like this, in the present embodiment, if when only connecting RJ45 port or gbic port, every unique user port can both normally use.If plug cable and optical fiber at RJ45 port and gbic port simultaneously, so, during system initialization, two ports all have normal detection signal, if monitor effective detection signal of RJ45 port earlier, then enable this RJ45 port, user link uses the RJ45 port that is connected to carry out data information transmission.
2) in application process, PHY ASIC 12 judges by the real-time monitoring to optical interface and electrical interface current detection signal whether currently used port remains valid, if then the data message of current port transmission active user's link is adopted in continuation; Otherwise, currently used user port is automatically switched on another user port, and enable user port after this switching, adopt the data message of the user port transmission active user link after switching then.
Give an example: current employing RJ45 port carries out communication, if the RJ45 port disconnects, as pulls up cable, and then system automatically switches to currently used port on the user port of GBIC optical fiber connection; After the RJ45 port recovers, owing to presently used gbic port is remained valid, so user link continues to use gbic port.
Equally, if current has connected the RJ45 port, and this port operate as normal; So, even newly install corresponding module and optical fiber, owing to presently used RJ45 port is remained valid, so user link continues to use the RJ45 port at gbic port.If current optical fiber that connects gbic port, and this port operate as normal; So, even newly install corresponding cable, owing to presently used gbic port is remained valid, so user link continues to use gbic port at the RJ45 port.
In above-mentioned application process, current enable port and control port are set switch, all be to realize by the state that is provided with and reads PHY ASIC internal register.
In actual applications, can also realize by buffer status is set:, two user ports are switched at any time according to user's needs.Automatic switchover recited above also can realize with crossing the mode that two ports are provided with priority, such as: preestablish light mouth priority greater than electricity mouthful, so, when using electrical interface,, can automatically switch after detecting if optical interface has been installed.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (4)
1. a method of supporting many gigabit ethernet ports photoelectric multiplexing is characterized in that this method comprises the steps;
A. adopt physical layer application-specific IC, for every user link is provided with the user port of a corresponding gigabit electrical interface and the user port of a corresponding gigabit optical interface simultaneously with line diagnosis and multiplexed port function;
B. according to real time detection signal, judge whether currently used user port remains valid, if determine that then currently used port is the validated user port to two current Link States of user port; Otherwise another user port that automaticallyes switch is currently used user port, and determines that the user port after this switching is the validated user port;
C., it is the enable port that determined validated user port is set, and transmits the data message of active user's link with this enable port.
2. method according to claim 1 is characterized in that, described step b further comprises: when system initialization, determine that the effective user port of current elder generation is the validated user port.
3. method according to claim 1 is characterized in that: the user port of described corresponding electrical interface is the RJ45 port.
4. method according to claim 1 is characterized in that: the user port of described corresponding optical interface is gigabit interface modular converter gbic port or is miniature pluggable module SFP port.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB03121391XA CN100382521C (en) | 2003-03-27 | 2003-03-27 | Method of supporting multi kilomega ethernet terminal photoelectric multiplex |
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| CNB03121391XA CN100382521C (en) | 2003-03-27 | 2003-03-27 | Method of supporting multi kilomega ethernet terminal photoelectric multiplex |
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| CN100382521C true CN100382521C (en) | 2008-04-16 |
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| CN101621328A (en) * | 2008-06-30 | 2010-01-06 | 成都市华为赛门铁克科技有限公司 | Method for realizing photoelectric mutual exclusion, Ethernet photoelectric mutual exclusion interface and network equipment |
| CN101350636B (en) * | 2008-09-04 | 2012-12-12 | 北京星网锐捷网络技术有限公司 | Method and system for link redundant backup base on photoelectric multiplexing port |
| CN101754256B (en) * | 2008-12-15 | 2012-06-27 | 中国移动通信集团天津有限公司 | Method and device for diagnosing fault of lower order transmission channel |
| CN101527639B (en) * | 2009-04-08 | 2012-05-23 | 中兴通讯股份有限公司 | Optic electric interface automatic switching method and device thereof |
| CN102064967B (en) * | 2010-12-31 | 2013-01-02 | 成都市华为赛门铁克科技有限公司 | BYPASS realizing method, equipment and system |
| CN103812732A (en) * | 2012-11-13 | 2014-05-21 | 深圳国人通信有限公司 | Broadband distribution system and data exchange center thereof |
| CN103595466A (en) * | 2013-11-18 | 2014-02-19 | 迈普通信技术股份有限公司 | Photoelectric multiplex interface equipment and control method thereof |
| CN104378314A (en) * | 2014-11-05 | 2015-02-25 | 上海斐讯数据通信技术有限公司 | Method for correcting state of photoelectric multiplex port of switchboard |
| CN104410505A (en) * | 2014-11-26 | 2015-03-11 | 北京中科德能科技有限公司 | Ethernet photo-dielectric converter |
| CN107294751B (en) * | 2016-03-31 | 2020-07-31 | 上海层峰网络科技有限公司 | Wide area optical network based on leased circuit and topology adjusting method and device |
| CN106656518A (en) * | 2016-11-11 | 2017-05-10 | 北京百卓网络技术有限公司 | Ten-gigabit switching equipment |
| CN106788688A (en) * | 2016-11-17 | 2017-05-31 | 同方工业信息技术有限公司 | Signal transmitting equipment, signal receiver, video-signal transmission method and system |
| CN107276674A (en) * | 2017-08-08 | 2017-10-20 | 深圳市三旺通信技术有限公司 | A kind of photoelectric port multiplex circuit of ethernet device |
| CN109218110A (en) * | 2018-10-22 | 2019-01-15 | 郑州云海信息技术有限公司 | A kind of communication equipment and communication means |
| CN111935563A (en) * | 2020-06-28 | 2020-11-13 | 南京熊猫电子股份有限公司 | Photoelectric free switching connection method |
| CN113242480B (en) * | 2021-06-24 | 2022-06-21 | 烽火通信科技股份有限公司 | Photoelectric multiplexing device and method |
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