CN101958815A - Security Ethernet interface on-line monitor system and method - Google Patents
Security Ethernet interface on-line monitor system and method Download PDFInfo
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- CN101958815A CN101958815A CN2010105103078A CN201010510307A CN101958815A CN 101958815 A CN101958815 A CN 101958815A CN 2010105103078 A CN2010105103078 A CN 2010105103078A CN 201010510307 A CN201010510307 A CN 201010510307A CN 101958815 A CN101958815 A CN 101958815A
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Abstract
The invention relates to the technical field of network monitor and discloses security Ethernet interface on-line monitor system and method. The system comprises a first switch which is connected with monitored equipment and a second switch which is connected with monitor equipment, wherein the first switch is connected with the second switch through the Ethernet, the first switch is used for acquiring communication data of the monitored equipment connected with the first switch, the second switch is used for mapping the communication data of the monitored equipment acquired by the first switch to a monitor port of the second switch, and the monitor equipment is used for acquiring monitor data from the monitor port of the second switch and analyzing the monitor data to acquire application layer data of the monitored equipment. The invention can carry out centralized monitor on the communication data of all the monitored equipment and real time monitor the communication data and the running conditions of the security Ethernet.
Description
Technical field
The present invention relates to the network monitor technical field, particularly a kind of safe Ethernet interface on-line monitoring system and method.
Background technology
With reference to European ETCS (European Train Control System) standard, China has progressively formed CTCS (the Chinese Train Control System) standards system of oneself.In the CTCS technical specification, can be divided into 5 grades by function according to system configuration CTCS.For satisfying Line for Passenger Transportation and high speed railway construction demand,, and, made up CTCS-3 level train control system standard in conjunction with the construction and the operation experience of the CTCS-2 level train operation control system of successful Application by introduction, digestion, absorption to the ETCS standard.
CTCS-3 level train operation control system is based on the important technology equipment of GSM-R (GSM for Railways) radio communication, be the important component part of Chinese Railway technical system and facility modernization, be guarantee the bullet train security of operation, reliably, one of core technology efficiently.
In CTCS-3 level train control system, comprised RBC (Radio Block Center, the radio block center), interlocking, TCC (Train Control Centre, row control center), TSRS (TemporarySpeed Restrictions Server, temporary speed limitation server), CTC large number of ground equipment such as (Centralized TrafficControl System, dispatching concentration systems).There is interface between these equipment each other, comprises the interface of RBC and interlocking, TSRS, RBC and VIA (Various InterfaceAdapter, the multipurpose interface adapter)-interface of CTC server, and the interface of TCC and interlocking, the interface of interlocking and CTC, the interface of TCC and TSRS etc.Communication between them is mainly undertaken by the safety Ethernet.Because equipment exchanges data to each other is very complicated and frequent, in order to monitor the ruuning situation of whole C TCS-3 system from bottom, and when breaking down rapid fault location reason, just need carry out comprehensive monitoring to the interface between each equipment of CTCS-3 system.
At present, the method for monitoring safe Ethernet interface mainly is in each device interior data of recorder and transmission separately, when communication goes wrong, comes analyzing failure cause by the mode of checking log file.There is following shortcoming at least in this monitoring method:
1. can not monitor safe ethernet communication data and ruuning situation in real time;
2. because the reception of record and the data of transmission in equipment separately, are relatively disperseed, be not easy to analysis-by-synthesis.
Summary of the invention
The embodiment of the invention provides a kind of safe Ethernet interface on-line monitoring system and method, disperses with Monitoring Data in the solution prior art, and can not monitor the problem of safe ethernet communication data and ruuning situation in real time.
For this reason, the embodiment of the invention provides following technical scheme:
A kind of safe Ethernet interface on-line monitoring system comprises: first switch that difference links to each other with a monitored equipment separately and second switch that links to each other with monitoring equipment, and described first switch links to each other by Ethernet with described second switch;
Described first switch is used to obtain the communication data of coupled monitored equipment;
Described second switch, the communication data that is used for monitored equipment that described first switch is got access to is mapped to the monitoring port of described second switch;
Described monitoring equipment is used for obtaining Monitoring Data from the monitoring port of described second switch, and described Monitoring Data is resolved, and obtains the application layer data of described monitored equipment.
A kind of safe Ethernet interface on-line monitoring method, described method comprises:
Obtain the communication data of coupled monitored equipment by first switch that links to each other with a monitored equipment separately respectively;
The communication data of the monitored equipment that described first switch is got access to is mapped to the monitoring port of described second switch;
Obtain Monitoring Data from the monitoring port of described second switch, and described Monitoring Data is resolved.
Safe Ethernet interface on-line monitoring system and method that the embodiment of the invention provides adopt the mode of two layers of port mapping that the communication data of all monitored equipments is concentrated monitoring, thereby can monitor safety net communication data and ruuning situation in real time.
Description of drawings
In order to be illustrated more clearly in technical scheme of the invention process, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the networking schematic diagram of embodiment of the invention safety Ethernet interface on-line monitoring system;
Fig. 2 is a kind of structural representation of monitoring equipment in the embodiment of the invention safety Ethernet interface on-line monitoring system;
Fig. 3 is the flow chart of embodiment of the invention safety Ethernet interface on-line monitoring method.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, be the networking schematic diagram of embodiment of the invention safety Ethernet interface on-line monitoring system.
In this embodiment, described system comprises: first switch that difference links to each other with a monitored equipment separately, figure 1 illustrates first switch 101,102,103 that links to each other with RBC, interlock device, TSR system separately respectively, and second switch 104 that links to each other with monitoring equipment 100, each first switch all links to each other by Ethernet with described second switch 104.Wherein:
Described first switch 101,102,103 is used to obtain the communication data of coupled monitored equipment;
Described second switch 104, the communication data that is used for monitored equipment that described first switch is got access to is mapped to the monitoring port of described second switch 104;
Described monitoring equipment 100 is used for obtaining Monitoring Data from the monitoring port of described second switch 104, and described Monitoring Data is resolved, and obtains the application layer data of described monitored equipment.
In concrete the application, described first switch can be mapped to the predetermined port of described first switch by the communication data with coupled monitored equipment, obtains described communication data.
As shown in Figure 1, in each first switch, port mapping is set, the communication data of RBC, interlock device, TSR system can be mapped to a certain port of the first coupled switch respectively, a port with second switch 104 directly is connected with netting twine with this port of each first switch respectively then, so just the communication data of RBC, interlock device, TSR system all can be duplicated a copy on second switch 104.Such as, the RBC system links to each other with the 1st port of first switch 101, does port mapping on first switch 101, with the 1st port mapping to the 24 ports.Like this, first switch 101 can be automatically with all of the 1st port that receive and data that send duplicate a automatically to the 24th port.Interlock device links to each other with the 3rd port of first switch 102, does port mapping equally, and the data that the 3rd port of first switch 102 is received and sends all are mapped to the 24th port of this first switch 102.The TSR system links to each other with the 4th port of first switch 103, does port mapping equally, the data of the reception of the 4th port of first switch 103 and transmission all is mapped to the 24th port of this first switch 103.
Said process is an one-level port mapping process, and the data of the mirror port of all like this monitored equipments just can all focus on the mirror port of second switch 104.
On this basis, continue on second switch 104, to do the level ports mapping, be about to second switch, 104 all ports that link to each other with the mirror port of first switch mirror image that tries again.Such as, each the 24th port of above-mentioned three first switches links to each other with the 1st, 2,3 ports of second switch 104 respectively by netting twine again.The mapping that tries again in second switch 104 all is mapped to the 24th port with the 1st, 2,3 ports of second switch 104.This process is the level ports mapping process.
At last, the 24th port of second switch 104 is linked to each other with the network interface card of monitoring equipment 100, just can make the 1st port of monitoring equipment 100 acquisitions first switch 101, whole transceive data of the 4th port of the 3rd port of first switch 102, the 3rd switch 103.On this basis, according to the concrete agreement of each inter-system data exchange, just can parse the particular content of each layer data exchange between system.
As shown in Figure 2, be a kind of structural representation of monitoring equipment in the embodiment of the invention.
Described monitoring equipment 200 comprises:
Wherein, described data parsing unit 202 comprises following subelement:
IP layer recognin unit is used to discern source address, the destination address of the IP bag of described Monitoring Data and transmission direction;
TCP (Transmission Control Protocol, transmission control protocol) layer recognin unit, the packet header that is used to remove described IP bag obtains the TCP bag;
ALE (Application Level Events, application-layer events) layer recognin unit, the packet header that is used to remove described TCP bag obtains ALE layer data bag;
Security Sublayer recognin unit, the packet header that is used to remove described ALE layer data bag obtains message inspection Security Sublayer packet;
Intermediate part-layer recognin unit is used to remove the packet header of described message inspection Security Sublayer packet and carry out the MAC verification, obtains Secure Application intermediate part-layer packet;
Application layer recognin unit, the packet header that is used to remove described Secure Application intermediate part-layer packet obtains the application layer data of described monitored equipment.
As seen, embodiment of the invention safety Ethernet interface on-line monitoring system adopts the mode of two layers of port mapping that the communication data of all monitored equipments is concentrated monitoring, thereby can monitor safety net communication data and ruuning situation in real time, and can concentrate the safe ethernet interface between RBC all on circuit of monitoring, interlock device, the TSR system, concrete higher integrated level.
Utilize embodiment of the invention safety Ethernet interface on-line monitoring system, can, unperturbed monitoring real-time to CTCS-3 train control system safety Ethernet interface.In order to analyze CTCS-3 train control system safety net signal intelligence better, in embodiment of the invention safety Ethernet interface on-line monitoring system, also can further comprise: display unit and/or memory cell (not shown), wherein:
Shown in display unit, be used for showing in real time that described monitoring equipment resolves the application layer data of the described monitored equipment that obtains;
Described record cell is used to write down the application layer data that described monitoring equipment is resolved the described monitored equipment that obtains.
Certainly, if desired, described display unit and described record cell can also show and write down the situation of each layer message respectively, such as the message of application layer, safe floor and communication layers.
Need to prove that described display unit and described record cell can also can be arranged in the described monitoring equipment respectively as an independent entity, and this embodiment of the invention is not done qualification.
Correspondingly, the embodiment of the invention also provides a kind of safe Ethernet interface on-line monitoring method, as shown in Figure 3, is the flow chart of this method, may further comprise the steps:
Particularly, the communication data of the monitored equipment that links to each other with first switch can be mapped to the predetermined port of described first switch, obtain described communication data from described predetermined port then.
Described monitored equipment can comprise following any one or a plurality of equipment: RBC, interlock device, TSR system; The communication data of described monitored equipment comprises: the transmission data of described monitored equipment and reception data.
The process that described Monitoring Data is resolved mainly comprises:
Discern source address, the destination address of the IP bag of described Monitoring Data, and transmission direction;
Remove the packet header of described IP bag, obtain the TCP bag;
Remove the packet header of described TCP bag, obtain ALE layer data bag;
Remove the packet header of described ALE layer data bag, obtain message inspection Security Sublayer packet;
Remove the packet header of described message inspection Security Sublayer packet and carry out the MAC verification, obtain Secure Application intermediate part-layer packet;
Remove the packet header of described Secure Application intermediate part-layer packet, obtain the application layer data of described monitored equipment.
Because the interface data of the RBC that directly obtains by port mapping, interlock device, TSR system is the IP bag.There is the IP source address and the destination address of this bag in the packet header of IP bag.By these two addresses, can identify this IP bag is the IP bag that transmits between which RBC and which interlock device or the TSR system, and judges transmission direction.By removing the IP packet header, just obtained the TCP bag.There is the former port address and the destination interface address of this bag in the packet header of TCP bag.Remove TCP packet header again, just obtained ALE layer data bag.The ALE layer will obtain message inspection Security Sublayer packet after removing packet header.The message inspection Security Sublayer will obtain Secure Application intermediate part-layer (SAI layer) packet after removing packet header and MAC verification.After the SAI layer is removed packet header, just obtained the application layer data bag of RBC and interlocking, TSR.RBC and interlock device application layer data comprise train status information, signal authorization message and emergency region information.Every kind of information all has set form, can resolve according to related specifications.Application layer data between RBC and the TSR system comprises TSR fill order, comprehensive refresh requests, TSR comprehensive state etc., can resolve according to related specifications.
As seen, embodiment of the invention safety Ethernet interface on-line monitoring method adopts the mode of two layers of port mapping that the communication data of all monitored equipments is concentrated monitoring, thereby can monitor safety net communication data and ruuning situation in real time, and can concentrate the safe ethernet interface between RBC all on circuit of monitoring, interlock device, the TSR system.
Embodiment of the invention safety Ethernet interface on-line monitoring method can be applied in and realize, unperturbed monitoring real-time to the safety Ethernet interface under the multiple network environment, monitors such as the safe Ethernet interface to the CTCS-3 train control system.
Use for convenience, analyze CTCS-3 train control system safety net signal intelligence better, in embodiment of the invention safety Ethernet interface on-line monitoring method, also can further may further comprise the steps:
The application layer data that shows the described monitored equipment that described monitoring equipment parsing obtains in real time; And/or
Write down described monitoring equipment and resolve the application layer data of the described monitored equipment that obtains.
Certainly, if desired, can also show and write down the situation of each layer message, such as the message of application layer, safe floor and communication layers.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
More than disclosed only be preferred implementation of the present invention; but the present invention is not limited thereto; any those skilled in the art can think do not have a creationary variation, and, all should drop in protection scope of the present invention not breaking away from some improvements and modifications of being done under the principle of the invention prerequisite.
Claims (10)
1. safe Ethernet interface on-line monitoring system, it is characterized in that, comprise: first switch that difference links to each other with a monitored equipment separately and second switch that links to each other with monitoring equipment, described first switch links to each other by Ethernet with described second switch;
Described first switch is used to obtain the communication data of coupled monitored equipment;
Described second switch, the communication data that is used for monitored equipment that described first switch is got access to is mapped to the monitoring port of described second switch;
Described monitoring equipment is used for obtaining Monitoring Data from the monitoring port of described second switch, and described Monitoring Data is resolved, and obtains the application layer data of described monitored equipment.
2. safe Ethernet interface on-line monitoring system as claimed in claim 1 is characterized in that,
Described first switch specifically is used for being mapped to by the communication data with coupled monitored equipment the predetermined port of described first switch, obtains described communication data.
3. safe Ethernet interface on-line monitoring system as claimed in claim 1 or 2 is characterized in that described monitoring equipment comprises:
Data capture unit is used for obtaining Monitoring Data from the monitoring port of described second switch;
The data parsing unit is used for described Monitoring Data is resolved.
4. safe Ethernet interface on-line monitoring system as claimed in claim 3 is characterized in that, described data parsing unit comprises:
IP layer recognin unit is used to discern source address, the destination address of the IP bag of described Monitoring Data and transmission direction;
TCP layer recognin unit, the packet header that is used to remove described IP bag obtains the TCP bag;
ALE layer recognin unit, the packet header that is used to remove described TCP bag obtains ALE layer data bag;
Security Sublayer recognin unit, the packet header that is used to remove described ALE layer data bag obtains message inspection Security Sublayer packet;
Intermediate part-layer recognin unit is used to remove the packet header of described message inspection Security Sublayer packet and carry out the MAC verification, obtains Secure Application intermediate part-layer packet;
Application layer recognin unit, the packet header that is used to remove described Secure Application intermediate part-layer packet obtains the application layer data of described monitored equipment.
5. safe Ethernet interface on-line monitoring system as claimed in claim 1 or 2 is characterized in that described system also comprises:
Display unit is used for the real-time application layer data that shows the described monitored equipment that described monitoring equipment parsing obtains; And/or
Record cell is used to write down the application layer data that described monitoring equipment is resolved the described monitored equipment that obtains.
6. safe Ethernet interface on-line monitoring method is characterized in that described method comprises:
Obtain the communication data of coupled monitored equipment by first switch that links to each other with a monitored equipment separately respectively;
The communication data of the monitored equipment that described first switch is got access to is mapped to the monitoring port of described second switch;
Obtain Monitoring Data from the monitoring port of described second switch, and described Monitoring Data is resolved.
7. safe Ethernet interface on-line monitoring method as claimed in claim 6 is characterized in that,
The communication data of described monitored equipment comprises: the transmission data of described monitored equipment and reception data;
Described monitored equipment comprises following any one or a plurality of equipment: radio block center equipment, interlock device, temporary speed limitation server.
8. safe Ethernet interface on-line monitoring method as claimed in claim 6 is characterized in that, the described communication data that obtains coupled monitored equipment by first switch that links to each other with a monitored equipment separately respectively comprises:
The communication data of the monitored equipment that will link to each other with first switch is mapped to the predetermined port of described first switch;
Obtain described communication data from described predetermined port.
9. as each described safe Ethernet interface on-line monitoring method of claim 6 to 8, it is characterized in that described described Monitoring Data is resolved comprises:
Discern source address, the destination address of the IP bag of described Monitoring Data, and transmission direction;
Remove the packet header of described IP bag, obtain the TCP bag;
Remove the packet header of described TCP bag, obtain ALE layer data bag;
Remove the packet header of described ALE layer data bag, obtain message inspection Security Sublayer packet;
Remove the packet header of described message inspection Security Sublayer packet and carry out the MAC verification, obtain Secure Application intermediate part-layer packet;
Remove the packet header of described Secure Application intermediate part-layer packet, obtain the application layer data of described monitored equipment.
10. as each described safe Ethernet interface on-line monitoring method of claim 6 to 8, it is characterized in that described method also comprises:
The application layer data that shows the described monitored equipment that described monitoring equipment parsing obtains in real time; And/or
Write down described monitoring equipment and resolve the application layer data of the described monitored equipment that obtains.
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| CN2010105103078A CN101958815A (en) | 2010-10-18 | 2010-10-18 | Security Ethernet interface on-line monitor system and method |
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| CN2010105103078A CN101958815A (en) | 2010-10-18 | 2010-10-18 | Security Ethernet interface on-line monitor system and method |
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Cited By (6)
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| CN102647437A (en) * | 2011-02-22 | 2012-08-22 | 铁道部运输局 | Centralized traffic control method and centralized traffic control system |
| CN104394225A (en) * | 2014-12-02 | 2015-03-04 | 上海雷尼威尔技术有限公司 | System and method for testing remote communication of vehicle LNG gas bottle |
| CN106060040A (en) * | 2016-05-30 | 2016-10-26 | 北京琵琶行科技有限公司 | Enterprise network access control method and device |
| CN111464379A (en) * | 2020-03-13 | 2020-07-28 | 视联动力信息技术股份有限公司 | Data processing method and device |
| CN112859674A (en) * | 2020-12-31 | 2021-05-28 | 中油国家油气钻井装备工程技术研究中心有限公司 | Unmanned on duty system of drilling pump |
| CN116405411A (en) * | 2023-06-09 | 2023-07-07 | 深圳市洪瑞光祥电子技术有限公司 | Redundant time domain monitoring system of industrial Ethernet switch |
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| US7453817B1 (en) * | 2005-02-01 | 2008-11-18 | Sprint Communications Company L.P. | Central traffic correlation system |
| CN101695039A (en) * | 2009-10-19 | 2010-04-14 | 河海大学 | Synchronous monitoring and experimental system for video communication and signal processing and implementation method thereof |
| CN101820655A (en) * | 2010-01-04 | 2010-09-01 | 北京交通大学 | RBC soft handoff method in CTCS-3 train control system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7453817B1 (en) * | 2005-02-01 | 2008-11-18 | Sprint Communications Company L.P. | Central traffic correlation system |
| CN101695039A (en) * | 2009-10-19 | 2010-04-14 | 河海大学 | Synchronous monitoring and experimental system for video communication and signal processing and implementation method thereof |
| CN101820655A (en) * | 2010-01-04 | 2010-09-01 | 北京交通大学 | RBC soft handoff method in CTCS-3 train control system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647437A (en) * | 2011-02-22 | 2012-08-22 | 铁道部运输局 | Centralized traffic control method and centralized traffic control system |
| CN104394225A (en) * | 2014-12-02 | 2015-03-04 | 上海雷尼威尔技术有限公司 | System and method for testing remote communication of vehicle LNG gas bottle |
| CN106060040A (en) * | 2016-05-30 | 2016-10-26 | 北京琵琶行科技有限公司 | Enterprise network access control method and device |
| CN106060040B (en) * | 2016-05-30 | 2019-11-22 | 北京琵琶行科技有限公司 | Enterprise network access control method and device |
| CN111464379A (en) * | 2020-03-13 | 2020-07-28 | 视联动力信息技术股份有限公司 | Data processing method and device |
| CN111464379B (en) * | 2020-03-13 | 2023-09-12 | 视联动力信息技术股份有限公司 | Data processing method and device |
| CN112859674A (en) * | 2020-12-31 | 2021-05-28 | 中油国家油气钻井装备工程技术研究中心有限公司 | Unmanned on duty system of drilling pump |
| CN116405411A (en) * | 2023-06-09 | 2023-07-07 | 深圳市洪瑞光祥电子技术有限公司 | Redundant time domain monitoring system of industrial Ethernet switch |
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Application publication date: 20110126 |