CN102377613A - Remote out-of-band management method and system for communication system - Google Patents
Remote out-of-band management method and system for communication system Download PDFInfo
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- CN102377613A CN102377613A CN2010102640358A CN201010264035A CN102377613A CN 102377613 A CN102377613 A CN 102377613A CN 2010102640358 A CN2010102640358 A CN 2010102640358A CN 201010264035 A CN201010264035 A CN 201010264035A CN 102377613 A CN102377613 A CN 102377613A
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- 238000004891 communication Methods 0.000 title claims abstract description 49
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Abstract
The invention discloses a remote out-of-band management method and a remote out-of-band management system for a communication system. The method mainly comprises the following steps of: utilizing head-end equipment to graft a remote out-of-band management link onto a physical link identical with an inband link; and leading the remote out-of-band management link to adopt a communication mode different from a communication mode of the inband link. When the interference of noise in the system is increased, and the inband link is interrupted, with the adoption of the method, control and management information still can be normally transmitted to remote equipment to monitor and debug the remote equipment, and the communication of the inband link can be recovered by setting a communication mode of a new inband link; and moreover, the cost is not increased.
Description
Technical field
The invention belongs to communication technical field, relate to a kind of long-range outband management method and system of communication system.
Background technology
The network management means of using at present all are in-band management basically, and promptly control and management information and date information uses same passage to transmit.The HP Openview network management software commonly used is exactly a typical in-band management system, and data message and management information all are to transmit through network equipment ethernet port in this system.The greatest drawback of in-band management is: data message and management information all can't normal transmission when this passage breaks down interruption.
For example in broadband access system, the telemanagement of customer access equipment (like MODEM) is very important.The pairing communication link of subscriber equipment is in the end of whole broadband access system, and the situation of this section link is the most complicated and changeable, and burst noise or narrow-band noise all possibly cause link down.Possibly need the communication pattern (like modulation coding mode) of adjustment data link this moment, exchanges the raising of system's anti-interference for the mode that reduces data transfer rate.But because original link (adopting original communication pattern) interrupts, can't control information be passed to the customer access equipment of far-end through original link, also just can't customer access equipment be made as new communication pattern.Can only send this moment maintainer such as family to go debugging, not only cost is high for this, and very bothers consuming time.
For overcoming above-mentioned defective, the technical staff has expected the mode of outband management.The core concept of outband management is that control and management information and data message are independent fully, are independent of each other through different channel transfer control and management information and data message.When the passage (being in-band channel) of data information when breaking down, still can utilize another passage (being out-band channel) to come management equipment, system monitoring and recovery.Therefore outband management can remedy the deficiency of in-band management.But generally speaking, the path of long-range outband management physically is being that path with in-band management is what to separate, and this can directly increase the cost of operator undoubtedly.
Summary of the invention
Technical problem to be solved by this invention is: a kind of long-range outband management method of communication system is provided, and this method can make management data in band, still can normally be sent to user side during link down under the prerequisite that does not increase cost;
In addition, the present invention also provides a kind of long-range outband management system of communication system.
For solving the problems of the technologies described above, the present invention adopts following technical scheme.
A kind of long-range outband management method of communication system, this method mainly be utilize headend with the grafting of long-range outband management link with band on the identical physical link of link, said long-range outband management link adopts and the interior link different modes of communications of band.
As a kind of preferred version of the present invention, said outband management data are handled the back through band external modulation encoder with the outer power controller of band and are transferred to user side by said physical link; Said outband management data comprise effective management packets and invalid management packets; Said effective management packets has correct authentication password, and said invalid management packets has the authentication password of change at random; Said effective management packets and invalid management packets are sent to user side with the mode of interting; Data are handled the back through band internal modulation encoder with band internal strength transmission rate controller and are transferred to user side by said physical link in the said band; The modulation coding mode of said band external modulation encoder is different from band internal modulation encoder.
As another kind of preferred version of the present invention, said user side is isolated said outband management data through being with outer demodulating and decoding device; Said user side is isolated data in the said band through demodulating and decoding device in being with.
As another preferred version of the present invention, said band external modulation encoder is the time-division modulating coder with band internal modulation encoder; The outband management data of transmitting on the said long-range outband management link are data in physical layer preamble sequence, outband management data, the band with being with the interior transmission mode of data on said physical link of the band that transmits on the interior link.
As another preferred version of the present invention, said band external modulation encoder is the division modulation encoder with band internal modulation encoder.
As another preferred version of the present invention, the transmitting power of said long-range outband management link is greater than the transmitting power of link in the band.
As another preferred version of the present invention, said headend repeats to send identical outband management data.
A kind of long-range outband management system of communication system, this management system comprise link in long-range outband management link and the band; The grafting of said long-range outband management link with band on the identical physical link of link, the communication pattern of said long-range outband management link is different with the communication pattern of being with interior link.
As a kind of preferred version of the present invention, said long-range outband management link comprises band external modulation encoder, is with outer power controller, is with outer demodulating and decoding device; Said band external modulation encoder is in order to carry out modulating-coding to the outband management data; The outer power controller of said band links to each other with the output of said band external modulation encoder, in order to the transmitted power of outband management data to be set; The outer demodulating and decoding device of said band is in order to isolate the outband management data through demodulating and decoding.Link comprises band internal modulation encoder, power controller in the band, demodulating and decoding device in the band in the said band; Said band internal modulation encoder is in order to carry out modulating-coding to data in being with; Power controller links to each other with the output of said band internal modulation encoder in the said band, in order to the transmitted power of data in the band to be set; The demodulating and decoding device is in order to isolate data in the band in the said band through demodulating and decoding.
As another kind of preferred version of the present invention, said outband management data comprise effective management packets and invalid management packets; Said effective management packets has correct authentication password, and said invalid management packets has the authentication password of change at random.
Beneficial effect of the present invention is: system noise disturb to increase and band of discontinuance in during link; The present invention still can normally pass to remote equipment with control and management information; Realization is to the monitoring and the debugging of remote equipment; And pass through to set the interior link communication pattern of new band and recover the communication of the interior link of band, and do not increase cost.
Description of drawings
Fig. 1 is the block diagram of long-range out-of-band communication management system of the present invention;
Fig. 2 is outband management data and the interior transmission mode sketch map of data on physical link of band;
Fig. 3 is that the outer link of band is through the mode of frequency division and the spectrum distribution sketch map of the interior same physical link of link sharing of band.
Embodiment
The present invention proposes a kind of management method of communication system, and is as shown in Figure 1, and in band during the link operate as normal, the control and management information of system both can also can be through being with outer link transmission through link in the band; When link can't operate as normal in the band, the control and management information of system will be through being with outer link transmission.Headend can be through link communication parameter in the band that resets remote equipment with outer link, like modulation coding mode, and transmitted power etc.After the link-recovery communication, the control and management information of system can transmit through link in being with again and pass in band.
Generally speaking; The path of long-range outband management is what to separate physically with the path of in-band management; The present invention with the grafting of outband management path with band on the identical physical channel of link; Outband management passage of the present invention adopts reliability, and anti-interference is far above the different communication mode of in-band channel.
Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.
Embodiment one
Present embodiment provides a kind of long-range outband management method of communication system; This method mainly be utilize headend with the grafting of long-range outband management link with band on the identical physical link of link, said long-range outband management link adopts and the interior link different modes of communications of band.In the outband management link of present embodiment at least down link adopt the stronger communication pattern of anti-interference, like modulation coding mode.
The detailed process of said grafting is as shown in Figure 1, and said outband management data are handled the back through band external modulation encoder with the outer power controller of band and transferred to user side by said physical link; Data are handled the back through band internal modulation encoder with band internal strength transmission rate controller and are transferred to user side by said physical link in the said band; The modulation coding mode of said band external modulation encoder is different from band internal modulation encoder.Said band external modulation encoder is the division modulation encoder with band internal modulation encoder.Said user side is isolated said outband management data through being with outer demodulating and decoding device; Said user side is isolated data in the said band through demodulating and decoding device in being with.
The transmission mode of data on said physical link is as shown in Figure 2 in the band that transmits on the link in outband management data of transmitting on the said long-range outband management link and the band, and this transmission mode is physical layer preamble sequence, outband management data, the interior data of band.
Present embodiment also provides a kind of long-range outband management system of communication system, and is as shown in Figure 1, and this management system comprises link in long-range outband management link and the band; The grafting of said long-range outband management link with band on the identical physical link of link, the communication pattern of said long-range outband management link is different with the communication pattern of being with interior link; The outband management data of transmitting on the said long-range outband management link are data in physical layer preamble sequence, outband management data, the band with being with the interior transmission mode of data on said physical link of the band that transmits on the interior link.
Said long-range outband management link comprises band external modulation encoder, is with outer power controller, is with outer demodulating and decoding device; Said band external modulation encoder is in order to carry out modulating-coding to the outband management data; The outer power controller of said band links to each other with the output of said band external modulation encoder, in order to the transmitted power of outband management data to be set; The outer demodulating and decoding device of said band is in order to isolate the outband management data through demodulating and decoding.
Link comprises band internal modulation encoder, power controller in the band, demodulating and decoding device in the band in the said band; Said band internal modulation encoder is in order to carry out modulating-coding to data in being with; Power controller links to each other with the output of said band internal modulation encoder in the said band, in order to the transmitted power of data in the band to be set; The demodulating and decoding device is in order to isolate data in the band in the said band through demodulating and decoding.
System noise disturb to increase and band of discontinuance in during link; The method of the invention still can normally be passed to remote equipment with control and management information; Realization is to the monitoring and the debugging of remote equipment, and recovers the communication of link in the band through setting in the new band link communication pattern, and do not increase cost.
Embodiment two
The difference of present embodiment and embodiment one is: said band external modulation encoder is the time-division modulating coder with band internal modulation encoder.It is reliable synchronously accurate that present embodiment need keep between headend and terminal equipment; The outband management packet can only transmit in specific time slot; And receiving terminal must be discerned the physical layer targeting sequencing reliably, and the different demodulating and decoding mode of data slot (being the user data time slot) employing separates exactly this two data flow in outband management data slot and band then.
Embodiment three
The difference of present embodiment and embodiment one, two is: the transmitting power of said long-range outband management link is greater than the transmitting power of link in the band; This moment, the anti-interference of outband management link was better than link in the band, can guarantee more that also the outband management data are transferred to user side smoothly simultaneously.In addition, the outband management link also can adopt the mode that increases transmitted power to strengthen anti-interference.
Embodiment four
Present embodiment is with the difference of embodiment one, two, three: said headend adopts the mode that repeats to send identical outband management data to improve the ability of the anti-narrow-band noise of outband management link, guarantees that management data arrives user side smoothly.
Embodiment five
In the present embodiment, the down link of said at least outband management link adopts the better communication pattern of down link noiseproof feature than link in the band.
Embodiment six
In the present embodiment, band internal modulation coding adopts QAM256, and code check is 5/6 LDPC sign indicating number, 1024 FFT; Band external modulation coding adopts QAM4 (QPSK), and code check is 1/2 LDPC sign indicating number, 1024 FFT.Though the message transmission rate of outband management link is far below link in the band at this moment, the antinoise of outband management link, antijamming capability have improved 20dB (100 times) at least with respect to link in the band.
Embodiment seven
The difference of present embodiment and above embodiment is that said outband management data comprise effective management packets and invalid management packets; Said effective management packets has correct authentication password, and said invalid management packets has the authentication password of change at random.Said effective management packets and invalid management packets are sent to user side with the mode of interting.
Management data all needs terminal equipment to carry out security credential, and the most easy way is that authentication password directly is attached in the management packets, and this method is saved hardware implementation cost most, but is eavesdropped, usurps easily.Thereby present embodiment adopts scheme---only in seldom, send effective management packets (having correct authentication password), and the most of the time is ceaselessly sent invalid management packets (authentication password that has change at random) through the outband management link.
The described scheme of present embodiment is not only simple and easy, does not influence the fail safe of system, and can obscure listener-in's audiovisual, make its extremely difficulty which is told is effective management packets, and then improve the fail safe of outband management.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other forms, structure, layout, ratio, and realize with other elements, material and parts.
Claims (10)
1. the long-range outband management method of a communication system is characterized in that: headend with the grafting of long-range outband management link with band on the identical physical link of link, said long-range outband management link adopts and the interior link different modes of communications of band.
2. the long-range outband management method of communication system according to claim 1 is characterized in that:
Said outband management data are handled the back through band external modulation encoder with the outer power controller of band and are transferred to user side by said physical link; Said outband management data comprise effective management packets and invalid management packets; Said effective management packets has correct authentication password, and said invalid management packets has the authentication password of change at random; Said effective management packets and invalid management packets are sent to user side with the mode of interting;
Data are handled the back through band internal modulation encoder with band internal strength transmission rate controller and are transferred to user side by said physical link in the said band;
The modulation coding mode of said band external modulation encoder is different from band internal modulation encoder.
3. the long-range outband management method of communication system according to claim 2 is characterized in that:
Said user side is isolated said outband management data through being with outer demodulating and decoding device;
Said user side is isolated data in the said band through demodulating and decoding device in being with.
4. the long-range outband management method of communication system according to claim 2 is characterized in that: said band external modulation encoder is the time-division modulating coder with band internal modulation encoder; The outband management data of transmitting on the said long-range outband management link are data in physical layer preamble sequence, outband management data, the band with being with the interior transmission mode of data on said physical link of the band that transmits on the interior link.
5. the long-range outband management method of communication system according to claim 2 is characterized in that: said band external modulation encoder is the division modulation encoder with band internal modulation encoder.
6. the long-range outband management method of communication system according to claim 1 is characterized in that: the transmitting power of said long-range outband management link is greater than the transmitting power of link in the band.
7. the long-range outband management method of communication system according to claim 1, it is characterized in that: said headend repeats to send identical outband management data.
8. the long-range outband management system of a communication system is characterized in that: said management system comprises link in long-range outband management link and the band; The grafting of said long-range outband management link with band on the identical physical link of link, the communication pattern of said long-range outband management link is different with the communication pattern of being with interior link.
9. the long-range outband management system of communication system according to claim 8 is characterized in that said long-range outband management link comprises:
Band external modulation encoder is in order to carry out modulating-coding to the outband management data;
Be with outer power controller, link to each other with the output of said band external modulation encoder, in order to the transmitted power of outband management data to be set;
Be with outer demodulating and decoding device, in order to isolate the outband management data through demodulating and decoding; Link comprises in the said band:
Band internal modulation encoder is in order to carry out modulating-coding to data in being with;
Power controller in the band links to each other with the output of said band internal modulation encoder, in order to the transmitted power of data in the band to be set;
Demodulating and decoding device in the band is in order to isolate data in the band through demodulating and decoding.
10. the long-range outband management system of communication system according to claim 8, it is characterized in that: said outband management data comprise effective management packets and invalid management packets; Said effective management packets has correct authentication password, and said invalid management packets has the authentication password of change at random.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103076991A (en) * | 2012-12-26 | 2013-05-01 | 创新科存储技术（深圳）有限公司 | Method for host and storage array to communicate |
| CN103281717A (en) * | 2013-06-19 | 2013-09-04 | 迈普通信技术股份有限公司 | Remote out-of-band management device and system based on 3G/4G network |
| CN106506409A (en) * | 2016-11-30 | 2017-03-15 | 迈普通信技术股份有限公司 | A kind of management method of network management exchange and network management exchange |
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| US20030233450A1 (en) * | 2002-06-13 | 2003-12-18 | Carley Jeffrey Alan | Out-of-band remote management station |
| CN1558635A (en) * | 2004-01-20 | 2004-12-29 | 北京邮电大学 | Method for transmitting network management and signaling information using Generic Framing Procedure |
| CN101227329A (en) * | 2008-02-18 | 2008-07-23 | 华为技术有限公司 | System, apparatus and method for managing network device |
| CN101485141A (en) * | 2006-11-02 | 2009-07-15 | 美国博通公司 | Method and system for two-phase mechanism for discovering web services based management service |
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| US20030233450A1 (en) * | 2002-06-13 | 2003-12-18 | Carley Jeffrey Alan | Out-of-band remote management station |
| US20090150977A1 (en) * | 2002-06-13 | 2009-06-11 | Engedi Technologies, Inc. | Secure remote management appliance |
| CN1558635A (en) * | 2004-01-20 | 2004-12-29 | 北京邮电大学 | Method for transmitting network management and signaling information using Generic Framing Procedure |
| CN101485141A (en) * | 2006-11-02 | 2009-07-15 | 美国博通公司 | Method and system for two-phase mechanism for discovering web services based management service |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103076991A (en) * | 2012-12-26 | 2013-05-01 | 创新科存储技术（深圳）有限公司 | Method for host and storage array to communicate |
| CN103076991B (en) * | 2012-12-26 | 2016-02-10 | 创新科存储技术（深圳）有限公司 | The communication means of a kind of main frame and storage array |
| CN103281717A (en) * | 2013-06-19 | 2013-09-04 | 迈普通信技术股份有限公司 | Remote out-of-band management device and system based on 3G/4G network |
| CN103281717B (en) * | 2013-06-19 | 2016-01-27 | 迈普通信技术股份有限公司 | A kind of wireless communication interface card, modularization managed devices and the remote out-of-band management system based on 3G/4G network |
| CN106506409A (en) * | 2016-11-30 | 2017-03-15 | 迈普通信技术股份有限公司 | A kind of management method of network management exchange and network management exchange |
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