CN104717104B - A kind of monitoring method based on time triggered Ethernet - Google Patents
A kind of monitoring method based on time triggered Ethernet Download PDFInfo
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- CN104717104B CN104717104B CN201310698763.3A CN201310698763A CN104717104B CN 104717104 B CN104717104 B CN 104717104B CN 201310698763 A CN201310698763 A CN 201310698763A CN 104717104 B CN104717104 B CN 104717104B
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Abstract
The present invention provides a kind of monitoring method based on time triggered Ethernet.Solves the problems, such as the monitoring of time triggered communication.A kind of monitoring method based on time triggered Ethernet, to time triggered message, protocol control message, rate limit message be divided by the message of MAC layer, each message is checked accordingly respectively, and is filtered, and then the message for meeting check item is submitted into Switching Module and is swapped.The present invention realizes the monitoring to time triggered message, protocol control message, rate limit message, can meet the monitoring requirement of highly reliable exchange network.
Description
Technical field
The invention belongs to the communications fields, are related to a kind of monitoring method based on time triggered Ethernet.
Background technology
Existing Ethernet is that simple realized to all message is guarded, and can not meet the monitoring of highly reliable exchange network
It is required that.For the Ethernet of time triggered, the monitoring of the flow information, temporal information to data can not be realized.
It is, therefore, desirable to provide a kind of monitoring design method, can realize in time triggered Ethernet and reside at interchanger
On monitoring function.
Invention content
Present invention aims at：A kind of monitoring method based on time triggered Ethernet is provided, is exchanged passing through in network
The message of machine is checked that the message of mistake will be dropped.
The present invention technical solution be：
A kind of monitoring method based on time triggered Ethernet, is characterized in that, includes the following steps：
1】Register configuration is carried out, including source address register, destination address register, virtual link register, frame length
Spend the configuration of register, temporal information register, flow information register；
2】The message received from MAC layer receiving module is judged, determines whether time triggered message, protocol integrated test system
Message, rate limit message if being not belonging to these three message, directly abandon；If belonging to these three message, step 3 is carried out】；
3】Time triggered message, protocol control message, rate limit message are checked accordingly, and filtered, will be accorded with
The message of conjunction check item is submitted to Switching Module and is swapped.
Above-mentioned steps 3】In inspection be specially：
For time triggered message, check source address, destination address, virtual link number, frame length and temporal information whether with
Step 1】Whether the content of the configuration of register is consistent, and message sink label is set to 0 if any one appearance is inconsistent,
Otherwise 1；
For protocol control message, check source address, destination address, virtual link number and frame length whether with step 1】Deposit
Whether the content of the configuration of device consistent, if any one occur it is inconsistent if message sink label is set to 0, otherwise 1；
For rate limit message, check source address, destination address, virtual link number, frame length and flow information whether with
Step 1】Whether the content of the configuration of register is consistent, and message sink label is set to 0 if any one appearance is inconsistent,
Otherwise 1；
Message sink labeled as 0 frame is abandoned, message sink is submitted to Switching Module and handed over labeled as 1 frame
It changes.
Above-mentioned steps 3】The inspection of time triggered message, protocol control message and rate limit message is further included
The inspection of cyclic redundancy check information and byte non-alignment information sent to MAC layer.
Above-mentioned steps 2】It is according to message to determine whether time triggered message, protocol control message, rate limit message
Type field divide.
It is an advantage of the invention that：It supports the monitoring function of interchanger in time triggered Ethernet, realizes to time triggered
The monitoring of message, protocol control message, rate limit message can meet the monitoring requirement of highly reliable exchange network.
Description of the drawings
Fig. 1 is message structure figure；
Fig. 2 is monitoring implementing procedure figure.
Specific embodiment
In time triggered Ethernet, monitoring function should be resident on switches so that monitoring can close interchanger
It outputs and inputs.Monitoring has the Time synchronization algorithm of oneself, can receive all message into interchanger.
Typical frame format includes lead code, fixed field, target MAC (Media Access Control) address, source MAC, type field etc..The wherein time
Triggering message further includes time triggered control word, message-length, parameter field etc..Message is divided into the time by type domain information to touch
Send out message, protocol control message, rate limit message.Time triggered message format is as shown in Figure 1.
A kind of monitoring method based on time triggered Ethernet, is shown in Fig. 2, is described as：
1】Register configuration is first carried out, including source address register, destination address register, virtual link register, frame
The configuration of length register, temporal information register, flow information register；
2】The message received from MAC layer receiving module is judged according to type field, if for time triggered message, association
Control message, rate limit message are discussed, if being not belonging to these three message, is directly abandoned；If belonging to these three message, walked
Rapid 3】；
3】Time triggered message, protocol control message, rate limit message are checked accordingly, and filtered, will be accorded with
The message of conjunction check item is submitted to Switching Module and is swapped.
For time triggered message, check source address, destination address, virtual link number, frame length and temporal information whether with
Step 1】Whether the content of the configuration of register is consistent, and message sink label is set to 0 if any one appearance is inconsistent,
Otherwise 1；
For protocol control message, check source address, destination address, virtual link number and frame length whether with step 1】Deposit
Whether the content of the configuration of device consistent, if any one occur it is inconsistent if message sink label is set to 0, otherwise 1；
For rate limit message, check source address, destination address, virtual link number, frame length and flow information whether with
Step 1】Whether the content of the configuration of register is consistent, and message sink label is set to 0 if any one appearance is inconsistent,
Otherwise 1；
Message sink labeled as 0 frame is abandoned, message sink is submitted to Switching Module and handed over labeled as 1 frame
It changes.
The inspection of time triggered message, protocol control message and rate limit message is further included, MAC layer is sent out
The inspection of cyclic redundancy check information and byte non-alignment information come.
Claims (3)
1. a kind of monitoring method based on time triggered Ethernet, which is characterized in that include the following steps：
1】Register configuration is carried out, is posted including source address register, destination address register, virtual link register, frame length
The configuration of storage, temporal information register and flow information register；
2】The message received from MAC layer receiving module is judged, determines whether that time triggered message, protocol integrated test system disappear
Breath, rate limit message if being not belonging to these three message, directly abandon；If belonging to these three message, step 3 is carried out】；
3】Extraction time triggers the data information of message, protocol control message, rate limit message, and compares in step 1 and deposit
The data information being configured in device is checked, will check that the message passed through is submitted to Switching Module and swapped；
Step 3】In inspection be specially：
For time triggered message, check source address, destination address, virtual link number, frame length and temporal information whether with step
1】Whether the content of the configuration of register is consistent, and message sink label is set to 0 if any one appearance is inconsistent, otherwise
1；
For protocol control message, check source address, destination address, virtual link number and frame length whether with step 1】Register
Whether the content of configuration consistent, if any one occur it is inconsistent if message sink label is set to 0, otherwise 1；
For rate limit message, check source address, destination address, virtual link number, frame length and flow information whether with step
1】Whether the content of the configuration of register is consistent, message sink label is set to 0 if any one appearance is inconsistent, otherwise
1；
Message sink labeled as 0 frame is abandoned, message sink is submitted to Switching Module and swapped labeled as 1 frame.
A kind of 2. monitoring method based on time triggered Ethernet according to claim 1, which is characterized in that step 3】It is right
It is superfluous that the cycle sent to MAC layer is further included in the inspection of time triggered message, protocol control message and rate limit message
The inspection of remaining check information and byte non-alignment information.
A kind of 3. monitoring method based on time triggered Ethernet according to claim 1 or 2, which is characterized in that step
2】Determining whether time triggered message, protocol control message, rate limit message is divided according to the type field of message.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105141552B (en) * | 2015-09-14 | 2018-04-17 | 中国航空无线电电子研究所 | The data dispatch transmission method of time triggered mechanism is supported in FC interchangers |
| CN105915518B (en) * | 2016-04-15 | 2019-03-29 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of ethernet data frame real time parsing method and device |
| CN106301654B (en) * | 2016-08-18 | 2019-01-29 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of time signal method of sampling of time trigger Ethernet |
| CN108306835B (en) * | 2018-01-23 | 2021-05-04 | 中国航空工业集团公司洛阳电光设备研究所 | Input caching and data forwarding method of Ethernet switch |
| CN111092712B (en) * | 2019-11-28 | 2022-04-05 | 中国航空工业集团公司西安航空计算技术研究所 | Preemptive scheduling method for time-triggered Ethernet |
| CN111147175B (en) * | 2019-11-28 | 2021-11-09 | 中国航空工业集团公司西安航空计算技术研究所 | Time-triggered Ethernet data frame capturing and storing device and method |
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| CN102136959A (en) * | 2010-01-22 | 2011-07-27 | 华为技术有限公司 | Ethernet link management method, device and system |
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| CN1845535A (en) * | 2005-07-13 | 2006-10-11 | 华为技术有限公司 | Message matching method and system |
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| CN102497285A (en) * | 2011-12-07 | 2012-06-13 | 西安电子科技大学 | Byte-based filtering and policing system and method of avionics full duplex switched Ethernet (AFDX) switch |
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