CN104601362B - A kind of network physical link switching heartbeat signal detection method - Google Patents
A kind of network physical link switching heartbeat signal detection method Download PDFInfo
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- CN104601362B CN104601362B CN201410718426.0A CN201410718426A CN104601362B CN 104601362 B CN104601362 B CN 104601362B CN 201410718426 A CN201410718426 A CN 201410718426A CN 104601362 B CN104601362 B CN 104601362B
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Abstract
The invention discloses a kind of network physical link switching heartbeat signal detection methods, include the following steps：S1：Obtain monitored equipment heartbeat signal；S2：It receives heartbeat signal and carries out demodulation heartbeat signal；S3：Heartbeat signal will be demodulated and be input to the switching command that central processing unit generates control monitored equipment；S4：The break-make of heartbeat signal status indicator lamp is controlled by demodulating heartbeat signal.Network physical link switching heartbeat signal detection method provided by the invention can be used for protecting equipment at failure (power interruptions, hardware fault, software crash, disconnecting etc.), to by the heartbeat signal of required monitored equipment when being switched over by protection equipment.It can be applied to fluidic device protection, firewall box protection etc..
Description
Technical field
The present invention relates to network security and switching field, more particularly to a kind of network physical link switching heartbeat signal detection
Method.
Background technology
Increase with all trades and professions to network broadband demand, 1000M networks and 1000M communications are gradually expanded in the network market
, fire wall, router, the server product of each major company's offer are also gradually changed to 1000M links.Therefore, with network
The extension of bandwidth and the increase of user volume, network security and network stabilization are increasingly valued by people.
Network Security Device is typically applied between two or more networks, such as between Intranet and outer net, net
Application program in network safety equipment can analyze the network package by him, exist to judge whether there is to threaten, place
Package is forwarded according still further to certain routing rule after having managed, and if failure occurs in this Network Security Device, than
After power-off or crash, it is also just out of touch each other that connects all network segments in this equipment, if required this when each
A network also needs to be in connected state each other, and active-standby switch function is used using alternate device, and network switching is set to backup
It is standby upper, maintain the active and standby normal work of network；Replacement use is carried out using alternate device, is enabled the network within a short period of time
Restore normal.This generally require webmaster personnel be on the scene immediately carry out manual operation, delay failure recovery time, Er Qiexu
Have the execute-in-place that the personnel of professional skill could complete, if using the equipment with active and standby function, only high-end production
Product just have, and the equipment price with this function is high, for some medium and small clients, be expected it is untouchable, and
And the product of different manufacturers can not be compatible with, the equipment that traditional routing device must use same producer needs disposably to throw
Money purchase main equipment and alternate device, initial investment are very big；Existing Bypass can only provide two-layer network device emergent protect
Shield, to three-layer network appliance with regard to helpless, only high-end product just has active and standby function.
It is existing that remote transmission is carried out often using heartbeat signal is converted into network signal to heartbeat signal, pass through
Routings at different levels or interchanger are transmitted to realize, this needs a series of equipment, and cost is very high, meanwhile, if same
A place needs to carry out relatively long distance transmission to heartbeat signal, just unsuitable in this way, it is therefore desirable to a kind of network
Physical link switches heartbeat signal detection method.
Invention content
In view of this, technical problem to be solved by the invention is to provide a kind of inspections of network physical link switching heartbeat signal
Survey method.
A kind of network physical link switching heartbeat signal detection method provided by the invention, includes the following steps：
S1：Obtain monitored equipment heartbeat signal；
S2：It receives heartbeat signal and carries out demodulation heartbeat signal；
S3：Heartbeat signal will be demodulated and be input to the switching command that central processing unit generates control monitored equipment；
S4：The break-make of heartbeat signal status indicator lamp is controlled by demodulating heartbeat signal；
It is further comprising the steps of in the step S3：
S3：Demodulation heartbeat signal will be re-modulated；
S3：Heartbeat signal will be re-modulated and be forwarded to mirror output mouth；
The heartbeat signal status indicator lamp control process includes the following steps：
S4：Legal heartbeat signal is determined whether, if it is, being that then indicator light is bright；
S4：If it is not, then indicator light extinguishes；
The mirror output mouth is the signaling interface of another heartbeat signal detection.
The beneficial effects of the present invention are：Network physical link switching heartbeat signal detection method provided by the invention is available
When protecting equipment at failure (power interruptions, hardware fault, software crash, disconnecting etc.), to will be by protection equipment
The heartbeat signal of required monitored equipment when switching over.It can be applied to fluidic device protection, firewall box protection etc..
Heartbeat signal provided by the invention refers to the heartbeat signal between serial ports, by being needed to the decoding of heartbeat signal
The heartbeat signal of modulation, by being re-modulated into the heartbeat signal before decoding to decoding heartbeat signal so that in transmission
Heartbeat signal maintains original heartbeat signal intensity, compensates for decaying of the heartbeat signal in transmission process, has reached heartbeat letter
Number can multiple relay transmission effect, maintain heartbeat signal cascade and stacking process signal strength；It also reduces simultaneously
The influence of interference signal improves the signal-to-noise ratio of signal, ensure that the accuracy of signal.
Description of the drawings
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
The detailed description of one step, wherein：
Fig. 1 is network physical link switching heartbeat signal detection method flow chart provided in an embodiment of the present invention.
Specific implementation mode
Hereinafter reference will be made to the drawings, and the preferred embodiment of the present invention is described in detail.It should be appreciated that preferred embodiment
Only for illustrating the present invention, the protection domain being not intended to be limiting of the invention.
As shown in Figure 1, a kind of network physical link switching heartbeat signal detection method provided by the invention, including following step
Suddenly：
S1：Obtain monitored equipment heartbeat signal；
S2：It receives heartbeat signal and carries out demodulation heartbeat signal；
S3：Heartbeat signal will be demodulated and be input to the switching command that central processing unit generates control monitored equipment；
S4：The break-make of heartbeat signal status indicator lamp is controlled by demodulating heartbeat signal.
It is further comprising the steps of in the step S3：
S31：Demodulation heartbeat signal will be re-modulated；
S32：Heartbeat signal will be re-modulated and be forwarded to mirror output mouth.
The heartbeat signal status indicator lamp control process includes the following steps：
S41：Legal heartbeat signal is determined whether, if it is, indicator light is bright；
S42：If it is not, then indicator light extinguishes.
The mirror output mouth is the signaling interface of another heartbeat signal detection.
Heartbeat signal provided in this embodiment refers to the heartbeat signal of serial ports, and multiple serial ports cascades may be implemented, breach
The cascade number limitation of serial ports.
The present embodiment re-modulates into heartbeat signal the heartbeat signal before decoding.
The serial ports of the present embodiment refers to RS232 and RS422 serial ports.
The mirror output mouth of the present embodiment refers to the cascade port of another heartbeat signal detection, which is another
The input port of one heartbeat signal detection.
Heartbeat signal detection method provided in this embodiment can as switching system come realize cascade (and stack) or by
Heartbeat cascade (and stacking) output signal of the handoff procedure of cascade (and stacking), i.e., other switching systems can be used as this switching
The input terminal of system；Also can heartbeat signal be output to other switchings as cascade (and stacking) output end of this switching system is
On system；Can also both use simultaneously, i.e., input terminal of this switching system as heartbeat cascade (and stacking) signal while, work
For the output end of heartbeat cascade (and stacking) signal, the not difference of principal and subordinate.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
To make various changes to it in the form and details, without departing from spirit and scope defined by the present invention.
Claims (1)
1. a kind of network physical link switching heartbeat signal detection method, it is characterised in that：Include the following steps：
S1：Obtain monitored equipment signal；
S2：Demodulation is carried out to monitored equipment signal and forms demodulated signal；
S2：Heartbeat signal is obtained from demodulated signal；
S3：Heartbeat signal is input to central processing unit and generates switching command；
S4：The break-make of heartbeat signal status indicator lamp is controlled by the heartbeat signal of demodulation；
It is further comprising the steps of in the step S3：
S31：The heartbeat signal of demodulation is re-modulated；
S32：Heartbeat signal will be re-modulated and be forwarded to mirror output mouth；
The heartbeat signal status indicator lamp control process includes the following steps：
S41：Legal heartbeat signal is determined whether, if it is, indicator light is bright；
S42：If it is not, then indicator light extinguishes；
The mirror output mouth is the input port of another heartbeat signal detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718426.0A CN104601362B (en) | 2014-12-02 | 2014-12-02 | A kind of network physical link switching heartbeat signal detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410718426.0A CN104601362B (en) | 2014-12-02 | 2014-12-02 | A kind of network physical link switching heartbeat signal detection method |
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| Publication Number | Publication Date |
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| CN104601362A CN104601362A (en) | 2015-05-06 |
| CN104601362B true CN104601362B (en) | 2018-07-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105099825B (en) * | 2015-08-17 | 2018-10-02 | 北京神州绿盟信息安全科技股份有限公司 | A kind of safeguard method and device of external Bypass |
| CN108988902B (en) * | 2018-05-30 | 2020-12-04 | 成都理工大学 | Multilink communication management device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1764079A (en) * | 2004-10-22 | 2006-04-26 | 北京佳讯飞鸿电气有限责任公司 | Method and system for realizing low end access level router backup |
| US7599301B2 (en) * | 2005-07-01 | 2009-10-06 | Net Optics, Inc. | Communications network tap with heartbeat monitor |
| CN101621340B (en) * | 2009-08-07 | 2013-01-16 | 中兴通讯股份有限公司 | Detection device and detection method |
| CN203912045U (en) * | 2013-12-26 | 2014-10-29 | 上海协同科技股份有限公司 | Digital forwarding relay modem self-adaptive to a variety of modulation modes |
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Effective date of registration: 20191118 Address after: No. 158, Yucheng street, Jiulongpo District, Chongqing Patentee after: CHONGQING GUANGYONG COMMUNICATION TECHNOLOGY CO.,LTD. Address before: 400039 Chongqing Jiulongpo Shiqiaopu South Street No. 66 of No. 33-2-2 Patentee before: CHONGQING QINGCAI TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20180727 |