CN102377613B - A kind of remote out-of-band management method and system of communication system - Google Patents
A kind of remote out-of-band management method and system of communication system Download PDFInfo
- Publication number
- CN102377613B CN102377613B CN201010264035.8A CN201010264035A CN102377613B CN 102377613 B CN102377613 B CN 102377613B CN 201010264035 A CN201010264035 A CN 201010264035A CN 102377613 B CN102377613 B CN 102377613B
- Authority
- CN
- China
- Prior art keywords
- band
- link
- management
- data
- remote out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007726 management method Methods 0.000 title claims abstract description 160
- 238000004891 communication Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Communication Control (AREA)
Abstract
The invention discloses a kind of remote out-of-band management method and system of communication system, the method mainly utilizes headend by the grafting of remote out-of-band management link on the physical link identical with link in band, and described remote out-of-band management link adopts the communication pattern different from link in band.In system noise interference increase also band of discontinuance during link, control and management information still normally can be passed to remote equipment by the method for the invention, realize the monitoring to remote equipment and debugging, and by setting the communication of link in link communication pattern recovery band in new band, and do not increase cost.
Description
Technical field
The invention belongs to communication technical field, relate to a kind of remote out-of-band management method and system of communication system.
Background technology
The network management means of current use are all in-band management substantially, and namely control and management information and date information uses same passage to transmit.The conventional HPOpenview network management software is exactly typical in-band management system, and in this system, data message and management information are all transmitted by network equipment ethernet port.The greatest drawback of in-band management is: when this passage breaks down interruption, data message and management information all cannot normal transmission.
Such as in broadband access system, the telemanagement of customer access equipment (as MODEM) is very important.Communication link corresponding to subscriber equipment is in the end of whole broadband access system, and the situation of this section of link is the most complicated and changeable, and burst noise or narrow-band noise all may cause link down.Now may need the communication pattern (as modulation coding mode) adjusting data link, to reduce the mode of data transfer rate to exchange the raising of system rejection to disturbance for.But because original link (adopting original communication pattern) interrupts, control information cannot be passed to the customer access equipment of far-end by original link, also just customer access equipment cannot be set to new communication pattern.Maintainer such as family now can only be sent to go debugging, and not only cost is high for this, and extremely bothers consuming time.
For overcoming above-mentioned defect, technical staff contemplates the mode of outband management.The core concept of outband management is by different passage transfer control management information and data message, and control and management information and data message are completely independent, are independent of each other.When the passage (i.e. in-band channel) of data information breaks down, another passage (i.e. out-band channel) still can be utilized to carry out management equipment, system monitoring and recovery.Therefore outband management can make up the deficiency of in-band management.But generally, the path of remote out-of-band management is be what to separate with the path of in-band management physically, and this directly can increase the cost of operator undoubtedly.
Summary of the invention
Technical problem to be solved by this invention is: a kind of remote out-of-band management method providing communication system, and the method can make management data still normally can be sent to user side during link down in being with under the prerequisite not increasing cost;
In addition, the present invention also provides a kind of remote out-of-band management system of communication system.
For solving the problems of the technologies described above, the present invention adopts following technical scheme.
A remote out-of-band management method for communication system, the method mainly utilizes headend by the grafting of remote out-of-band management link on the physical link identical with link in band, and described remote out-of-band management link adopts the communication pattern different from link in band.
As a preferred embodiment of the present invention, described outband management data transfer to user side by described physical link after band external modulation encoder and the outer power controller process of band; Described outband management data comprise effective management packets and invalid management packets; Described effective management packets is with correct authentication password, and described invalid management packets is with the authentication password of change at random; Described effective management packets and invalid management packets are sent to user side in the mode interted; In described band, data transfer to user side by described physical link after band internal modulation encoder and the process of band internal strength transmission rate controller; The modulation coding mode of described band external modulation encoder is different from band internal modulation encoder.
As another kind of preferred version of the present invention, described user side isolates described outband management data by the outer demodulating and decoding device of band; Described user side isolates data in described band by demodulating and decoding device in band.
As another preferred version of the present invention, described band external modulation encoder and band internal modulation encoder are time division modulation encoder; In the band in the outband management data that described remote out-of-band management link transmits and band, link transmitted the transmission mode of data on described physical link be physical layer preamble sequence, outband management data, be with in data.
As another preferred version of the present invention, described band external modulation encoder and band internal modulation encoder are division modulation encoder.
As another preferred version of the present invention, the transmitting power of described remote out-of-band management link is greater than the transmitting power of link in band.
As another preferred version of the present invention, described headend repeats to send identical outband management data.
A remote out-of-band management system for communication system, this management system comprises link in remote out-of-band management link and band; The grafting of described remote out-of-band management link is on the physical link identical with link in band, and the communication pattern of described remote out-of-band management link is different from the communication pattern of link in band.
As a preferred embodiment of the present invention, described remote out-of-band management link comprises band external modulation encoder, is with outer power controller, is with outer demodulating and decoding device; Described band external modulation encoder is in order to carry out modulating-coding to outband management data; The outer power controller of described band is connected with the output of described band external modulation encoder, in order to arrange the transmitted power of outband management data; The outer demodulating and decoding device of described band is in order to isolate outband management data by demodulating and decoding.In described band, link comprises band internal modulation encoder, power controller in band, demodulating and decoding device in band; Described band internal modulation encoder is in order to carry out modulating-coding to data in band; In described band, power controller is connected with the output of described band internal modulation encoder, in order to arrange the transmitted power of data in band; In described band, demodulating and decoding device is in order to isolate data in band by demodulating and decoding.
As another kind of preferred version of the present invention, described outband management data comprise effective management packets and invalid management packets; Described effective management packets is with correct authentication password, and described invalid management packets is with the authentication password of change at random.
Beneficial effect of the present invention is: in system noise interference increase also band of discontinuance during link, control and management information still normally can be passed to remote equipment by the present invention, realize the monitoring to remote equipment and debugging, and by setting the communication of link in link communication pattern recovery band in new band, and do not increase cost.
Accompanying drawing explanation
Fig. 1 is the block diagram of the outer communications management system of remote band of the present invention;
Fig. 2 is outband management data and the transmission mode schematic diagram of data on physical link in band;
Fig. 3 is the mode of the outer link of band by frequency division and the spectrum distribution schematic diagram of link sharing Same Physical link in band.
Embodiment
The present invention proposes a kind of management method of communication system, and as shown in Figure 1, when in being with, link normally works, the control and management information of system both also can pass through the outer link transmission of band by link in band; When in being with, link cannot normally work, the control and management information of system will by the outer link transmission of band.Headend by reset remote equipment with outer link band in link communication parameter, as modulation coding mode, transmitted power etc.In band after link-recovery communication, the control and management information of system can be passed by link transmission in band again.
Generally, the path of remote out-of-band management is what to separate with the path of in-band management physically, the present invention by the grafting of outband management path with on the identical physical channel of link in band, outband management passage of the present invention adopts reliability, and anti-interference is far above the different communication mode of in-band channel.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Embodiment one
The present embodiment provides a kind of remote out-of-band management method of communication system, the method mainly utilizes headend by the grafting of remote out-of-band management link on the physical link identical with link in band, and described remote out-of-band management link adopts the communication pattern different from link in band.In the outband management link of the present embodiment, at least down link adopts the communication pattern that anti-interference is stronger, as modulation coding mode.
As shown in Figure 1, described outband management data transfer to user side by described physical link to the detailed process of described grafting after band external modulation encoder and the outer power controller process of band; In described band, data transfer to user side by described physical link after band internal modulation encoder and the process of band internal strength transmission rate controller; The modulation coding mode of described band external modulation encoder is different from band internal modulation encoder.Described band external modulation encoder and band internal modulation encoder are division modulation encoder.Described user side isolates described outband management data by the outer demodulating and decoding device of band; Described user side isolates data in described band by demodulating and decoding device in band.
In the band in the outband management data that described remote out-of-band management link transmits and band, link transmitted, the transmission mode of data on described physical link as shown in Figure 2, and this transmission mode is data in physical layer preamble sequence, outband management data, band.
The present embodiment also provides a kind of remote out-of-band management system of communication system, and as shown in Figure 1, this management system comprises link in remote out-of-band management link and band; The grafting of described remote out-of-band management link is on the physical link identical with link in band, and the communication pattern of described remote out-of-band management link is different from the communication pattern of link in band; In the band in the outband management data that described remote out-of-band management link transmits and band, link transmitted the transmission mode of data on described physical link be physical layer preamble sequence, outband management data, be with in data.
Described remote out-of-band management link comprises band external modulation encoder, is with outer power controller, is with outer demodulating and decoding device; Described band external modulation encoder is in order to carry out modulating-coding to outband management data; The outer power controller of described band is connected with the output of described band external modulation encoder, in order to arrange the transmitted power of outband management data; The outer demodulating and decoding device of described band is in order to isolate outband management data by demodulating and decoding.
In described band, link comprises band internal modulation encoder, power controller in band, demodulating and decoding device in band; Described band internal modulation encoder is in order to carry out modulating-coding to data in band; In described band, power controller is connected with the output of described band internal modulation encoder, in order to arrange the transmitted power of data in band; In described band, demodulating and decoding device is in order to isolate data in band by demodulating and decoding.
In system noise interference increase also band of discontinuance during link, control and management information still normally can be passed to remote equipment by the method for the invention, realize the monitoring to remote equipment and debugging, and by setting the communication of link in link communication pattern recovery band in new band, and do not increase cost.
Embodiment two
The difference of the present embodiment and embodiment one is: described band external modulation encoder and be with internal modulation encoder to be time division modulation encoder.The present embodiment needs between headend and terminal equipment, keep reliable accurate synchronous, outband management packet can only transmit in specific time slot, and receiving terminal reliably must identify physical layer targeting sequencing, then in outband management data slot with band, data slot (i.e. user data time slot) adopts different demodulating and decoding modes to be separated this two data flow exactly.
Embodiment three
The difference of the present embodiment and embodiment one, two is: the transmitting power of described remote out-of-band management link is greater than the transmitting power being with interior link, now the anti-interference of outband management link is better than link in band, also more can ensure that outband management data are transferred to user side smoothly simultaneously.In addition, outband management link also can adopt the mode increasing transmitted power to strengthen anti-interference.
Embodiment four
The present embodiment is with the difference of embodiment one, two, three: described headend adopts the mode repeating to send identical outband management data to improve the ability of the anti-narrow-band noise of outband management link, ensures that management data arrives user side smoothly.
Embodiment five
In the present embodiment, the down link of at least described outband management link adopts communication pattern more better than the down link noiseproof feature of link in band.
Embodiment six
In the present embodiment, band internal modulation coding adopts QAM256, and code check is the LDPC code of 5/6,1024 FFT; Band external modulation coding adopts QAM4 (QPSK), and code check is the LDPC code of 1/2,1024 FFT.Although now the message transmission rate of outband management link is far below link in band, antinoise, the antijamming capability of outband management link improve at least 20dB (100 times) relative to link in band.
Embodiment seven
The difference of the present embodiment and above embodiment is, described outband management data comprise effective management packets and invalid management packets; Described effective management packets is with correct authentication password, and described invalid management packets is with the authentication password of change at random.Described effective management packets and invalid management packets are sent to user side in the mode interted.
Management data all needs terminal equipment to carry out security credential, and the most easy way is directly attached in management packets by authentication password, and this method saves hardware implementation cost most, but is easily ravesdropping, usurps.Thus the present embodiment adopts scheme---only in little, send effective management packets (authentication password with correct) by outband management link, and the most of the time ceaselessly sends invalid management packets (authentication password with change at random).
Scheme described in the present embodiment is not only simple and easy, not the fail safe of influential system, and can obscure the audiovisual of listener-in, makes it extremely which difficulty tells to be effective management packets, and then improve the fail safe of outband management.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or substantive characteristics, and the present invention with other forms, structure, layout, ratio, and can realize with other elements, material and parts.
Claims (10)
1. a remote out-of-band management method for communication system, is characterized in that: headend is by the grafting of remote out-of-band management link on the physical link identical with link in band, and described remote out-of-band management link adopts the communication pattern different from link in band; The down link of described remote out-of-band management link adopts communication pattern more better than the down link noiseproof feature of link in band; In the band in the outband management data that described remote out-of-band management link transmits and band, link transmitted the transmission mode of data on described physical link be physical layer preamble sequence, outband management data, be with in data.
2. the remote out-of-band management method of communication system according to claim 1, is characterized in that:
Described outband management data transfer to user side by described physical link after band external modulation encoder and the outer power controller process of band; Described outband management data comprise effective management packets and invalid management packets; Described effective management packets is with correct authentication password, and described invalid management packets is with the authentication password of change at random; Described effective management packets and invalid management packets are sent to user side in the mode interted;
In described band, data transfer to user side by described physical link after band internal modulation encoder and the process of band internal strength transmission rate controller;
The modulation coding mode of described band external modulation encoder is different from band internal modulation encoder.
3. the remote out-of-band management method of communication system according to claim 2, is characterized in that:
Described user side isolates described outband management data by the outer demodulating and decoding device of band;
Described user side isolates data in described band by demodulating and decoding device in band.
4. the remote out-of-band management method of communication system according to claim 2, is characterized in that: described band external modulation encoder and band internal modulation encoder are time division modulation encoder.
5. the remote out-of-band management method of communication system according to claim 2, is characterized in that: described band external modulation encoder and band internal modulation encoder are division modulation encoder.
6. the remote out-of-band management method of communication system according to claim 1, is characterized in that: the transmitting power of described remote out-of-band management link is greater than the transmitting power of link in band.
7. the remote out-of-band management method of communication system according to claim 1, is characterized in that: described headend repeats to send identical outband management data.
8. a remote out-of-band management system for communication system, is characterized in that: described management system comprises link in remote out-of-band management link and band; The grafting of described remote out-of-band management link is on the physical link identical with link in band, and the communication pattern of described remote out-of-band management link is different from the communication pattern of link in band; The down link of described remote out-of-band management link adopts communication pattern more better than the down link noiseproof feature of link in band; In the band in the outband management data that described remote out-of-band management link transmits and band, link transmitted the transmission mode of data on described physical link be physical layer preamble sequence, outband management data, be with in data.
9. the remote out-of-band management system of communication system according to claim 8, is characterized in that,
Described remote out-of-band management link comprises:
Band external modulation encoder, in order to carry out modulating-coding to outband management data;
Be with outer power controller, be connected with the output of described band external modulation encoder, in order to arrange the transmitted power of outband management data;
Be with outer demodulating and decoding device, in order to isolate outband management data by demodulating and decoding;
In described band, link comprises:
Band internal modulation encoder, in order to carry out modulating-coding to data in band;
Power controller in band, is connected with the output of described band internal modulation encoder, in order to arrange the transmitted power of data in band;
Demodulating and decoding device in band, in order to isolate data in band by demodulating and decoding.
10. the remote out-of-band management system of communication system according to claim 8, is characterized in that: described outband management data comprise effective management packets and invalid management packets; Described effective management packets is with correct authentication password, and described invalid management packets is with the authentication password of change at random.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010264035.8A CN102377613B (en) | 2010-08-24 | 2010-08-24 | A kind of remote out-of-band management method and system of communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010264035.8A CN102377613B (en) | 2010-08-24 | 2010-08-24 | A kind of remote out-of-band management method and system of communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102377613A CN102377613A (en) | 2012-03-14 |
| CN102377613B true CN102377613B (en) | 2016-03-16 |
Family
ID=45795630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010264035.8A Active CN102377613B (en) | 2010-08-24 | 2010-08-24 | A kind of remote out-of-band management method and system of communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102377613B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN106506409B (en) * | 2016-11-30 | 2019-06-18 | 迈普通信技术股份有限公司 | A kind of management method and network management exchange of network management exchange |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003276819A1 (en) * | 2002-06-13 | 2003-12-31 | Engedi Technologies, Inc. | Out-of-band remote management station |
-
2010
- 2010-08-24 CN CN201010264035.8A patent/CN102377613B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101227329A (en) * | 2008-02-18 | 2008-07-23 | 华为技术有限公司 | System, apparatus and method for managing network device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102377613A (en) | 2012-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7796025B2 (en) | Power line communication device and method | |
| CN102201837B (en) | Communication node and procedure for various means of transmission | |
| US7508834B2 (en) | Wireless link for power line communications system | |
| US6885674B2 (en) | Communications system for providing broadband communications using a medium voltage cable of a power system | |
| US10742452B2 (en) | Noise reduction between proximate networks | |
| CN102377613B (en) | A kind of remote out-of-band management method and system of communication system | |
| CN103634086B (en) | Adjust method, system, local side apparatus and the CPE of the distribution of uplink and downlink time | |
| CN102868452A (en) | Mixed networking system for dense transmission channel | |
| CN100452744C (en) | Physical layer data transmitting method and receiving method and physical layer chip | |
| US8615055B2 (en) | Communication between modems in XPIC configuration for wireless applications | |
| CN106900030A (en) | Based on repetition policy selection and resource allocation safe transmission method in relaying OFDM networks | |
| CN104135306A (en) | Medium-voltage broadband power carrier networking system and networking method suitable for distribution automation | |
| Galli et al. | Industrial and International Standards on PLC‐Based Networking Technologies | |
| D'Alessandro et al. | Power savings with opportunistic decode and forward over in-home PLC networks | |
| CN101874382A (en) | Bi-directional amplifier for data over coax application | |
| CN102163994B (en) | Power line carrier modem based on TR-069 protocol | |
| WO2003039022A1 (en) | Powerline communication system | |
| CN107017963B (en) | Method for communication between nodes, node and system comprising a plurality of nodes | |
| CN106211143B (en) | A kind of safe transmission discrete power control method based on fountain codes | |
| CN206402232U (en) | A kind of communication system | |
| CN109167615A (en) | A method of the uplink and downlink tdm communication based on G3-PLC communication network | |
| Liu et al. | QoS-aware policies for OFDM bidirectional transmission with decode-and-forward relaying | |
| CN107070996B (en) | Method, system and modem for power boost in a communication system | |
| Lou et al. | Joint relay selection and power allocation for two-way decode-and-forward relay networks | |
| Ginis et al. | Vectored DSL to the Rescue |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |