CN108282359A - A kind of raising time triggered Ethernet data transmission reliability system - Google Patents
A kind of raising time triggered Ethernet data transmission reliability system Download PDFInfo
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- CN108282359A CN108282359A CN201711445474.7A CN201711445474A CN108282359A CN 108282359 A CN108282359 A CN 108282359A CN 201711445474 A CN201711445474 A CN 201711445474A CN 108282359 A CN108282359 A CN 108282359A
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- Prior art keywords
- switch
- interchanger
- communication node
- communication
- backup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/55—Prevention, detection or correction of errors
- H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/55—Prevention, detection or correction of errors
- H04L49/555—Error detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/55—Prevention, detection or correction of errors
- H04L49/557—Error correction, e.g. fault recovery or fault tolerance
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
The invention discloses a kind of raising time triggered Ethernet data transmission reliability systems, the present invention has redesigned system topology, increase the transmission channel between interchanger, when a situation arises, the data forwarding that failed switches itself is received gives link failure interchanger, the node to break down is connect by original backup path between the access and interchanger of the connection of failed switches itself with link failure interchanger, is realized communication, is improved the fault-tolerance of system.
Description
Technical field
The present invention relates to a kind of raising time triggered Ethernet data transmission reliability systems, belong to computer networking technology
Field.
Background technology
TTEthernet is the novel Ethernet protocol based on time triggered, is TTTech companies specifically for aviation, boat
It, the high speed real-time fault tolerance network technology that Safety-Critical System is developed such as ship, traffic rate support at present 10Mbit/s,
100Mbit/s and tri- kinds of 1Gbit/s.The downward completely compatible common Ethernet of TTE agreements and ARINC664part7 (AFDX), and
Common Ethernet (Best-Effort, BE), ARINC664part7 (Rate- can be realized in same TTE networks simultaneously
Constraint, RC) and three kinds of different priorities message mixed communications of time triggered (TT) mode, have be based on time triggered
The high failure tolerant ability of the distinctive high real-time of network and binary-channel redundancy can be used for control system higher to requirement of real-time
System, the multimedia system etc. that data acquire and data traffic is big, has broad application prospects in space industry.
The communication of time triggered not by event-driven, is driven by timing node, and TTEthernet network systems have
One common time reference, each communication node and interchanger are opened all in accordance with the requirement of communication configuration table at the time of regulation
Beginning transceiving data.The communication configuration table of network is generated using specific purpose tool offline mode, ensures that all shared resources are not mutual
Conflict, each communication node at most only has a piece of news to need to send at some moment in a network, is not in a plurality of disappear
The case where breath competition is using same output link.
But general T TE networks have the disadvantage that：
General T TE networks are generally worked using Hot Spare mode, and each node is connected to the corresponding interface of all interchangers
On, as long as interchanger, which has, would not influence data transmission when a failure.
But in case of data link and the double failure of exchange interface, can cause lead between controller node
Letter, causes the system failure.
Invention content
The technology of the present invention solves the problems, such as：In order to overcome the deficiencies of the prior art, a kind of raising time triggered ether is proposed
Network data transmission belief system can ensure to communicate to greatest extent under communication node interface and the double failure of exchange interface,
Improve the reliability of system.
Technical solution of the invention is：
A kind of raising time triggered Ethernet data transmission reliability system, including communication node and interchanger, communication section
Point at least two, it is at most consistent with each switch port quantity；Interchanger at least two, wherein one is work interchanger,
Remaining is backup switch；The port connection of each communication node number identical as each interchanger respectively, between interchanger
It is connected by data transmission channel；
It is worked by the way of Hot Spare between interchanger under normal mode；
When the interchanger that works breaks down, work interchanger is switched to fault mode, is worked using backup switch,
Its I/O port is switched to forward mode by work interchanger, realizes system normal communication；
While the interchanger that works breaks down, when the port on backup switch is also broken down, work interchanger
The data received from communication node are forwarded to by data transmission channel on backup switch, realize system normal communication.
Interchanger includes switch A, switch b, and communication node K is a,
Switch A receives the data that the communication node M being connected in network is sent to communication node N, and 1≤M≤K, 1≤N≤
K sends the data to communication node N according to system default configurating channel, and in defined time t0, switch A does not receive
The feedback information of communication node N, after n1 communication is attempted, n1 >=5, switch A enters fault mode, will receive communication
The data that node M is sent are sent to switch b by backup path；If all nodes being connected on switch A are required to pass through
Backup path rests on fail operation pattern to switch b transmission data, then switch A, and system is led to using only switch b
Letter；If being connected to communication node number K >=2 of normal communication on switch A, switch A is converted to port event by fault mode
Barrier pattern works, the same switch A of switch b work-based logic.
Compared with the prior art, the invention has the advantages that：
(1) present invention increases backup communication interface by active and standby inter-exchange so that occurs in network dual redundant link
It can ensure that communication is normal when twin failure as far as possible, improve the fault freedom of TTE networks；
(2) the technology of the present invention can be used in any using the network of TTE technologies, it is other to use dual redundant network system
It is also can refer in system by increasing the internetwork backup path of dual redundant, improves the reliability of system.
Description of the drawings
Fig. 1 is general T TE network connection relations；
The TTE network system node connection relations of Fig. 2 present invention；
The network communication working method of Fig. 3 present invention.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings.
General T TE networks take the mode of two-node cluster hot backup, and when certain portion interchanger device breaks down, system can be stood
It is switched on another interchanger and runs, as shown in Figure 1.ES1 can be logical by interchanger 1, link m and ES3 by link k
Letter, while ES1 can also be communicated by interchanger 2, link n with ES3 by link l.When link k, m there are one failure and link l,
There are one when failure, the communication between ES1 and ES3 cannot carry out n.
Therefore, the present invention has redesigned system topological framework, increases interchanger 1 and exchange and 2 direct transmission channels,
It is defined as link o, as shown in Figure 2.When above-mentioned failure occurs, such as：Link m and link l break down simultaneously, at this time interchanger
By 1 receive data are transmitted by link k interchanger 2 are transmitted to by link o, interchanger 2 is by link n by ES1's
Data are sent to ES3, realize the normal communication of ES1 and ES3, improve the fault-tolerance of system.
In order to adapt to such working method by switch design into three kinds of operating modes：
1, normal mode：The network switch operating mode phase of the working condition of interchanger and general T TE under such pattern
Together.
2, fault mode：Failed switches can be isolated in the case where finding exchange fault for general T TE networks, no longer
Access network.This system framework it is different be that I/O port is transformed for we, the meeting when finding this part of exchange fault
I/O port is set to forward mode, the data received are directly forwarded to an other exchange by the link between two interchangers
On machine.
3, port failure pattern：It can not be synchronized in one or several nodes, but when other nodes are working properly enters
The pattern sends and receivees the data of malfunctioning node under such operating mode by the link between two interchangers.
Interchanger 1 and interchanger 2 are worked by the way of two-node cluster hot backup under normal mode, when part occurs in interchanger 1
When connection end point is unable to normal communication, interchanger 1 is set to fault mode, by backup link o, interchanger 1 is by the data of ES1
It is sent to interchanger 2, interchanger 2 sends the data to ES3 by link n.Since other endpoints on interchanger 1 at this time can be just
Normal open believes that old friend, which changes planes, 1 exits fail operation pattern, is operated in port failure pattern.
It is detailed, a kind of raising time triggered Ethernet data transmission reliability system, including communication node and interchanger,
Communication node at least two, it is at most consistent with each switch port quantity；Interchanger at least two, wherein one is handed over for work
It changes planes, remaining is backup switch；The port connection of each communication node number identical as each interchanger respectively, interchanger
Between connected by data transmission channel；
It is worked by the way of Hot Spare between interchanger under normal mode；
When the interchanger that works breaks down, work interchanger is switched to fault mode, is worked using backup switch,
Its I/O port is switched to forward mode by work interchanger, realizes system normal communication；
While the interchanger that works breaks down, when the port on backup switch is also broken down, work interchanger
The data received from communication node are forwarded to by data transmission channel on backup switch, realize system normal communication.
General T TE network routers are worked using Hot Spare mode, and each node has link connection with all interchangers,
As long as data transmission would not be influenced by having a interchanger that can work normally.
But in case of following this situation：
All interchangers break down, and an interchanger is that the link between node and interchanger breaks down, and exchange
Machine itself and fault-free (hereinafter referred to as link failure interchanger)；Be additionally present of an interchanger be interchanger failure itself but with
Link between node is normal work (hereinafter referred to as failed switches itself).In this case, general T TE networks are
It can not work normally, but use the method in the present invention that link failure interchanger can be made to use failed switches itself
Link makes network restore to work normally again.
The present invention has redesigned system topology, increases the transmission channel between interchanger.When generation the above situation
When, the data forwarding that failed switches itself is received gives link failure interchanger, and the node to break down passes through original and sheet
Backup path between the access and interchanger of the connection of body failed switches is connect with link failure interchanger, is realized
Communication, improves the fault-tolerance of system.
The content that description in the present invention is not described in detail belongs to the known technology of those skilled in the art.
Claims (2)
1. a kind of raising time triggered Ethernet data transmission reliability system, which is characterized in that including communication node and exchange
Machine, communication node at least two are at most consistent with each switch port quantity；Interchanger at least two, wherein one is work
Make interchanger, remaining is backup switch；The port connection of each communication node number identical as each interchanger respectively, is handed over
It is connected by data transmission channel between changing planes；
It is worked by the way of Hot Spare between interchanger under normal mode；
When the interchanger that works breaks down, work interchanger is switched to fault mode, is worked, is worked using backup switch
Its I/O port is switched to forward mode by interchanger, realizes system normal communication；
While the interchanger that works breaks down, when the port on backup switch is also broken down, work interchanger will be from
The data that communication node receives are forwarded to by data transmission channel on backup switch, realize system normal communication.
2. a kind of raising time triggered Ethernet data transmission reliability system as described in claim 1, which is characterized in that hand over
It changes planes including switch A, switch b, communication node K,
Switch A receives the data that the communication node M being connected in network is sent to communication node N, and 1≤M≤K, 1≤N≤K are pressed
Lighting system default configuration channel sends the data to communication node N, and in defined time t0, switch A does not receive communication
The feedback information of node N, after n1 communication is attempted, n1 >=5, switch A enters fault mode, will receive communication node
The data that M is sent are sent to switch b by backup path；If all nodes being connected on switch A are required to pass through backup
Channel rests on fail operation pattern to switch b transmission data, then switch A, and system is communicated using only switch b；
If being connected to communication node number K >=2 of normal communication on switch A, switch A is converted to port failure mould by fault mode
Formula works, the same switch A of switch b work-based logic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711445474.7A CN108282359A (en) | 2017-12-27 | 2017-12-27 | A kind of raising time triggered Ethernet data transmission reliability system |
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| CN201711445474.7A CN108282359A (en) | 2017-12-27 | 2017-12-27 | A kind of raising time triggered Ethernet data transmission reliability system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109005062A (en) * | 2018-08-03 | 2018-12-14 | 湖南华芯通网络科技有限公司 | A kind of time trigger Ethernet Bandwidth plan method towards reception constraint |
| CN111371580A (en) * | 2018-12-26 | 2020-07-03 | 浙江宇视科技有限公司 | Chain roaming method and device for instructions on data exchange equipment |
| CN112468318A (en) * | 2020-11-05 | 2021-03-09 | 中国航空工业集团公司西安航空计算技术研究所 | Dual-redundancy time-triggered network reconstruction method |
| CN112995041A (en) * | 2021-04-21 | 2021-06-18 | 北京国科天迅科技有限公司 | Network communication method, device, electronic equipment and storage medium |
| CN113938450A (en) * | 2021-09-01 | 2022-01-14 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Avionics system communication fault processing method and device, computer equipment and medium |
| CN116405375A (en) * | 2023-06-09 | 2023-07-07 | 深圳和润达科技有限公司 | Data transmission and power supply method and system based on multipath network |
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| US20070047436A1 (en) * | 2005-08-24 | 2007-03-01 | Masaya Arai | Network relay device and control method |
| CN102148677A (en) * | 2010-02-10 | 2011-08-10 | 杭州华三通信技术有限公司 | Method for updating address resolution protocol table entries and core switch |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109005062A (en) * | 2018-08-03 | 2018-12-14 | 湖南华芯通网络科技有限公司 | A kind of time trigger Ethernet Bandwidth plan method towards reception constraint |
| CN109005062B (en) * | 2018-08-03 | 2021-03-26 | 湖南华芯通网络科技有限公司 | Receiving constraint-oriented time-triggered Ethernet bandwidth planning method |
| CN111371580A (en) * | 2018-12-26 | 2020-07-03 | 浙江宇视科技有限公司 | Chain roaming method and device for instructions on data exchange equipment |
| CN111371580B (en) * | 2018-12-26 | 2023-03-14 | 浙江宇视科技有限公司 | Chain roaming method and device for instructions on data exchange equipment |
| CN112468318A (en) * | 2020-11-05 | 2021-03-09 | 中国航空工业集团公司西安航空计算技术研究所 | Dual-redundancy time-triggered network reconstruction method |
| CN112468318B (en) * | 2020-11-05 | 2023-03-14 | 中国航空工业集团公司西安航空计算技术研究所 | Dual-redundancy time-triggered network reconstruction method |
| CN112995041A (en) * | 2021-04-21 | 2021-06-18 | 北京国科天迅科技有限公司 | Network communication method, device, electronic equipment and storage medium |
| CN113938450A (en) * | 2021-09-01 | 2022-01-14 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Avionics system communication fault processing method and device, computer equipment and medium |
| CN113938450B (en) * | 2021-09-01 | 2023-09-01 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Avionics system communication fault processing method, avionics system communication fault processing device, computer equipment and medium |
| CN116405375A (en) * | 2023-06-09 | 2023-07-07 | 深圳和润达科技有限公司 | Data transmission and power supply method and system based on multipath network |
| CN116405375B (en) * | 2023-06-09 | 2023-08-25 | 深圳和润达科技有限公司 | Data transmission and power supply method and system based on multipath network |
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Application publication date: 20180713 |