CN109639505A - A kind of Substation Process layer network device and its image feature implementation method - Google Patents
A kind of Substation Process layer network device and its image feature implementation method Download PDFInfo
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- CN109639505A CN109639505A CN201910011256.5A CN201910011256A CN109639505A CN 109639505 A CN109639505 A CN 109639505A CN 201910011256 A CN201910011256 A CN 201910011256A CN 109639505 A CN109639505 A CN 109639505A
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- 238000009825 accumulation Methods 0.000 claims abstract description 39
- 230000003111 delayed effect Effects 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 3
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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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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Abstract
The present invention discloses a kind of implementation method of Substation Process layer network device image feature and realizes image feature before delay accumulation function modifies to message content when message inputs the network equipment；When message output network equipment, image feature is realized after delay accumulation function modifies message content.Ensure that the message obtained using image feature is consistent in original contents with original into the network equipment and finally from the message that the network equipment exports.Realize the Port Mirroring function of real meaning.The present invention discloses corresponding Substation Process layer network devices.
Description
Technical field
The present invention relates to power system transformer substation process-level network fields of communication technology, more particularly to a kind of substation's mistake
Journey layer network device and its image feature implementation method.
Background technique
The process-level network equipment that current transformer substation uses has delay accumulation function for what is developed for electric system customization
The interchanger of energy, the interchanger realize the transmission of GOOSE/SV message by the way of increasing FPGA between PHY and SWITCH
Delay accumulation, GOOSE/SV message enter the input time of the recorded message first in FPGA after interchanger, when the message from its
When his port output, output time is recorded by FPGA, while subtracting input time with output time, calculated result is put into
The specific field of GOOSE/SV message is output to receiving device.In this process from the port PHY be input to FPGA message and from
The message that output SWITCH is output to fpga chip can all lead to the change of message content in FPGA because of delay accumulation function.
Traditional image feature is realized by SWITCH chip, in delay accumulation interchanger, SWITCH chip position
Behind fpga chip, therefore, the incoming message and outgoing message of mirror image are not to be originally inputted message and final output message.
Meanwhile existing progress message can not carry port numbers, message passes in and out the key messages such as the practical moment of interchanger, for
Process-level network and the contingency question analysis for operating above business bring very big difficulty.Therefore, it is necessary to solve with delay accumulation
The image problem of function interchanger.
Summary of the invention
In view of the deficienciess of the prior art, the object of the present invention is to provide a kind of Substation Process layer network device and its
Image feature implementation method realizes that the process-level network equipment with delay accumulation function is by the message that image feature obtains
The message of original disengaging interchanger, rather than it is delayed by the message that accumulation function was modified.
To achieve the goals above, the present invention is realized by following technical solution:
A kind of Substation Process layer network device image feature implementation method, the process-level network equipment have delay tired
Add function；The image feature is arranged in FPGA；Message input the network equipment when, delay accumulation function to message content into
Mirror image operation is carried out before row modification；When message output network equipment, mirror image is carried out after delay accumulation function modifies message content
Operation.
Further, the method specific steps include:
Step 1: mirror image processing module is set in FPGA；
Step 2: being pre-configured with image feature parameter on switches, comprising:
Configuration is mirrored port, and being mirrored port is one or more ports；Configuration mirroring content is the input report of the port
Text, outgoing message or whole messages of input and output；
Configuration mirroring port, the port are one or more port；
Step 3:FPGA carries out mirror image message forwarding according to the parameter of configuration；It is tired in delay when message inputs the network equipment
Mirror image operation is carried out before adding function to modify message content；When message output network equipment, modified in delay accumulation function
Mirror image operation is carried out after message content.
Further, the message that the network equipment forwards on mirror port increases original message port numbers and input/output
Information at the time of interchanger.
Further, in the step 2 when mirror port is two or more, each mirror port exports simultaneously
Identical mirror image message or each mirror port are exported according to load balancing.
Further, the load balancing includes: defeated according to destination-mac address, source MAC, APPID or input
Go out port numbers carry out flow equalization.
Further, the step 2 further includes configuring the processing strategie of duplicate message, and the processing strategie includes: repetition
Be mirrored packet loss, preservation or forward process.
Further, the step 3 further includes being mirrored port input/output message increase port numbers, input/output
Interchanger time information, increasing these key messages is beneficial to mirror image message positioning.
Further, the step 3 further includes increasing message in being mirrored port input/output message in mirror port
The time of output occurs not being inconsistent and asks with practical message to solve the message accounting time caused by mirror port is lined up etc. in port
Topic.
Invention while proposing a kind of Substation Process layer network device, the process-level network equipment include cpu chip,
SWITCH chip, fpga chip；Delay accumulation module is set in the fpga chip, which is characterized in that in the fpga chip
Mirror image processing module, clock module are also set up, the clock module includes input clock module and output clock module；
When the input clock module is for controlling the message input network equipment, it is introduced into mirror image processing module, is entered back into
Delay accumulation module；Message is output to mirror port, mirror image while being sent into delay accumulation module from mirror image processing module
Message content and enter the network equipment message it is completely the same；
When the output clock module is for controlling the message output network equipment, after message enters FPGA, it is introduced into and prolongs
When accumulator module is cumulative is delayed and is written back to the mirror image processing module for entering FPGA behind the designated position of message；Mirror image processing mould
Block exports message from target port, and is output to mirror port simultaneously, the message content of mirror port output with from target side
The message of mouth output is completely the same.
Further, when the message input network equipment, increase the incoming message moment in the message content of mirror port output
And port numbers.The message content that can choose whether to export in mirror port by setting options increases incoming message moment and port
Number
Further, when the message output network equipment, increase the outgoing message moment in the message content of mirror port output
And port numbers.The message content that can choose whether to export in mirror port by setting options increases outgoing message moment and port
Number.
Further, the port that is mirrored of the network equipment is one or more ports；Mirrored content is the defeated of the port
Enter whole messages of message, outgoing message or input and output；Mirror port is one or more port；The mirror port is
Two or more when, it is equal according to load that each mirror port exports identical mirror image message or each mirror port simultaneously
Weighing apparatus strategy output；The load balancing includes: according to destination-mac address, source MAC, APPID or input/output port
Number carry out flow equalization.
Further, the message that the network equipment forwards on mirror port increases original message port numbers and input/output
Information at the time of interchanger；Increase the time that message is exported in mirror port in mirror port outgoing message.
Further, mirror port occur identical message when, it is duplicate be mirrored packet loss, save or
Person's forward process.
Beneficial effects of the present invention: method proposed by the present invention, image feature realize that message inputs net on fpga chip
When network equipment, image feature is realized before delay accumulation function modifies to message content；When message output network equipment,
Image feature is realized after delay accumulation function modification message content.The message for ensuring to obtain using image feature enters net with original
Network equipment and finally from the network equipment export message be consistent in original contents, realize the Port Mirroring function of real meaning
Energy.And further by being convenient in key messages such as the practical moment of mirror port increase port numbers and message disengaging interchanger
Process-level network and the contingency question analysis for operating above business.
Detailed description of the invention
Fig. 1 is the logic chart that image feature is realized by FPGA.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right below according to accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that specific implementation described herein is only used to explain the present invention, not
Limit the present invention.
Embodiment 1:
A kind of Substation Process layer network device image feature implementation method of the invention, wherein process-level network equipment has
There is delay accumulation function；Image feature is arranged in FPGA；When message inputs the network equipment, in delay accumulation function in message
Appearance carries out mirror image operation before modifying；When message output network equipment, carried out after delay accumulation function modifies message content
Mirror image operation.
Method and step includes:
Step 1: mirror image processing module is set in FPGA；
Step 2: being pre-configured with image feature parameter on switches, comprising:
Configuration is mirrored port, and being mirrored port is one or more ports；Configuration mirroring content is the input report of the port
Text, outgoing message or whole messages of input and output；Wherein, when mirror port is two or more, each mirror image end
Mouth exports identical mirror image message simultaneously or each mirror port is exported according to load balancing.Load balancing includes:
Flow equalization is carried out according to destination-mac address, source MAC, APPID or input/output terminal slogan.
Configuration mirroring port, the port are one or more port.
Configure duplicate message processing strategie, the processing strategie include: it is duplicate be mirrored packet loss, save or
Person's forward process.
Step 3:FPGA carries out mirror image message forwarding according to the parameter of configuration；It is tired in delay when message inputs the network equipment
Mirror image operation is carried out before adding function to modify message content；When message output network equipment, modified in delay accumulation function
Mirror image operation is carried out after message content.
The network equipment is when the message forwarded on mirror port increases original message port numbers and input/output interchanger
Carve information.Increase port numbers, input/output interchanger time information being mirrored port input/output message.It is being mirrored end
Increase the time that message is exported in mirror port in mouth input/output message.
Embodiment 2:
Fig. 1 is the logic chart that image feature is realized by FPGA, main by following step in the embodiment of the present invention as shown in the figure
It is rapid to carry out:
1. being pre-configured with image feature on switches according to Fig. 1, configuration is mirrored port；Configuration mirroring port P1's is defeated
Enter, outgoing message, the incoming message of port P2, the outgoing message of port P3；Configuration P8 is mirror port；Configure duplicate message
Processing strategie, the duplicate message that is mirrored are forwarded to mirror port output；Configuration record mirror image message moment and message input are defeated
Port numbers out；Only have a mirror port in Fig. 1, therefore, there is no need to configuration load balance policy.Mirror configuration parameter passes through
It is attached in FPGA under CPU, FPGA carries out mirror image message forwarding according to the parameter of configuration.Forward rule parameter passes through to be attached under CPU
In SWITCH, the message into SWITCH is forwarded according to forward rule.
2. the GOOSE/SV message inputted from port P1 initially enters mirror before the delay accumulation functional module for being sent into FPGA
As processing module, message is normally sent into after delay accumulation module the designated position that the value of message input time is inserted into message,
And it is forwarded by the forward rule module that the port L1 of FPGA is sent to SWITCH through the port M1 of SWITCH.Message is being sent
The port P8, the report of mirror image are output to by the port K8 according to the rule of setting in mirror module while entering delay accumulation module
Literary content and the message entered from physical port P1 are completely the same, additionally contain the input report that record is required according to setting rule
Literary moment and port numbers.
3. it is output to the GOOSE/SV message of the port L1 of FPGA by the port M1 according to forward rule from SWITCH chip,
It is added up by the delay accumulation module of FPGA and is delayed and is written back to the mirror module for entering FPGA behind the designated position of message.Mirror
As message is output to PHY by the port K1 by module, and message is exported from the port P1 of interchanger through PHY, while mirror image mould
Message is output to port P8 by the port K8 according to the rule of setting by block, and the message content of mirror image is exported with from physical port P1
Message it is completely the same, additionally contain according to setting rule require record the outgoing message moment and port numbers.
4. the GOOSE/SV message inputted from port P2 initially enters mirror before the delay accumulation functional module for being sent into FPGA
As processing module, message is normally sent into after delay accumulation module the designated position that the value of message input time is inserted into message,
And it is forwarded by the forward rule module that the port L2 of FPGA is sent to SWITCH through the port M2 of SWITCH.Message is being sent
The port P8, the report of mirror image are output to by the port K8 according to the rule of setting in mirror module while entering delay accumulation module
Literary content and the message entered from physical port P2 are completely the same, additionally contain the input report that record is required according to setting rule
Literary moment and port numbers.
5. it is output to the GOOSE/SV message of the port L3 of FPGA by the port M3 according to forward rule from SWITCH chip,
It is added up by the delay accumulation module of FPGA and is delayed and is written back to the mirror module for entering FPGA behind the designated position of message.Mirror
As message is output to PHY by the port K3 by module, and message is exported from the port P3 of interchanger through PHY, while mirror image mould
Message is output to port P8 by the port K8 according to the rule of setting by block, and the message content of mirror image is exported with from physical port P3
Message it is completely the same, additionally contain according to setting rule require record the outgoing message moment and port numbers.
Embodiment 3:
Invention while proposing a kind of Substation Process layer network device, the process-level network equipment include cpu chip,
SWITCH chip, fpga chip；Delay accumulation module is set in the fpga chip, which is characterized in that in the fpga chip
Mirror image processing module, clock module are also set up, the clock module includes input clock module and output clock module；
When the input clock module is for controlling the message input network equipment, it is introduced into mirror image processing module, is entered back into
Delay accumulation module；Message is output to mirror port, mirror image while being sent into delay accumulation module from mirror image processing module
Message content and enter the network equipment message it is completely the same；
When the output clock module is for controlling the message output network equipment, after message enters FPGA, it is introduced into and prolongs
When accumulator module is cumulative is delayed and is written back to the mirror image processing module for entering FPGA behind the designated position of message；Mirror image processing mould
Block exports message from target port, and is output to mirror port simultaneously, the message content of mirror port output with from target side
The message of mouth output is completely the same.
Wherein, when the message input network equipment, increase incoming message moment and end in the message content of mirror port output
Slogan.The message content that can choose whether to export in mirror port by setting options increases incoming message moment and port numbers.
Wherein, when the message output network equipment, increase outgoing message moment and end in the message content of mirror port output
Slogan.The message content that can choose whether to export in mirror port by setting options increases outgoing message moment and port numbers.
Wherein, the port that is mirrored of the network equipment is one or more ports；Mirrored content be the port incoming message,
Outgoing message or whole messages of input and output；Mirror port is one or more port；The mirror port be two or
When more than two, each mirror port exports identical mirror image message or each mirror port according to load balancing simultaneously
Output；The load balancing includes: to carry out according to destination-mac address, source MAC, APPID or input/output terminal slogan
Flow equalization.
The network equipment is when the message forwarded on mirror port increases original message port numbers and input/output interchanger
Carve information；Increase the time that message is exported in mirror port in mirror port outgoing message.
It is duplicate to be mirrored at packet loss, preservation or forwarding when identical message occurs in mirror port
Reason.
One embodiment of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (14)
1. a kind of Substation Process layer network device image feature implementation method, the process-level network equipment has delay accumulation
Function；It is characterized in that, the image feature is arranged in FPGA；When message inputs the network equipment, in delay accumulation function pair
Message content carries out mirror image operation before modifying；When message output network equipment, message content is modified in delay accumulation function
After carry out mirror image operation.
2. a kind of Substation Process layer network device image feature implementation method according to claim 1, which is characterized in that
Specific steps include:
Step 1: mirror image processing module is set in FPGA；
Step 2: being pre-configured with image feature parameter on switches, comprising:
Configuration is mirrored port, and being mirrored port is one or more ports；Configuration mirroring content be the port incoming message,
Outgoing message or whole messages of input and output；
Configuration mirroring port, the port are one or more port；
Step 3:FPGA carries out mirror image message forwarding according to the parameter of configuration；When message inputs the network equipment, in delay accumulation function
Mirror image operation is carried out before capable of modifying to message content；When message output network equipment, message is modified in delay accumulation function
Mirror image operation is carried out after content.
3. a kind of Substation Process layer network device image feature implementation method according to claim 1 or 2, feature exist
In the network equipment letter at the time of message forwarded on mirror port increases original message port numbers and input/output interchanger
Breath.
4. a kind of Substation Process layer network device image feature implementation method according to claim 2, which is characterized in that
When mirror port is two or more in the step 2, each mirror port exports identical simultaneously in the step 3
Mirror image message or each mirror port are exported according to load balancing.
5. a kind of Substation Process layer network device image feature implementation method according to claim 4, which is characterized in that
The load balancing includes: to carry out flow according to destination-mac address, source MAC, APPID or input/output terminal slogan
It is balanced.
6. a kind of Substation Process layer network device image feature implementation method according to claim 2, which is characterized in that
The step 2 further include configure duplicate message processing strategie, the processing strategie include: it is duplicate be mirrored packet loss,
Preservation or forward process.
7. a kind of Substation Process layer network device image feature implementation method according to claim 2, which is characterized in that
The step 3 further includes being mirrored port input/output message increase port numbers, input/output interchanger time information.
8. a kind of Substation Process layer network device image feature implementation method according to claim 2, which is characterized in that
The step 3 further includes the time for increasing message in being mirrored port input/output message and exporting in mirror port.
9. a kind of Substation Process layer network device, the process-level network equipment includes cpu chip, SWITCH chip, FPGA
Chip；Delay accumulation module is set in the fpga chip, which is characterized in that mirror image processing mould is also set up in the fpga chip
Block, clock module, the clock module include input clock module and output clock module；
When the input clock module is for controlling the message input network equipment, it is introduced into mirror image processing module, enters back into delay
Accumulator module；Message is output to mirror port, the report of mirror image while being sent into delay accumulation module from mirror image processing module
Literary content and the message for entering the network equipment are completely the same；
When the output clock module is for controlling the message output network equipment, after message enters FPGA, it is tired to be introduced into delay
Add the mirror image processing module that FPGA is entered behind the cumulative designated position for being delayed and being written back to message of module；Mirror image processing module will
Message is exported from target port, and is output to mirror port simultaneously, the message content of mirror port output with it is defeated from target port
Message out is completely the same.
10. a kind of Substation Process layer network device according to claim 9, which is characterized in that message input network is set
When standby, increase incoming message moment and port numbers in the message content of mirror port output.
11. a kind of Substation Process layer network device according to claim 9, which is characterized in that message output network is set
When standby, increase outgoing message moment and port numbers in the message content of mirror port output.
12. a kind of Substation Process layer network device according to claim 9, which is characterized in that the network equipment
Being mirrored port is one or more ports；Mirrored content is incoming message, outgoing message or the whole of input and output of the port
Message；Mirror port is one or more port；When the mirror port is two or more, each mirror port is same
When export identical mirror image message or each mirror port is exported according to load balancing；The load balancing includes:
Flow equalization is carried out according to destination-mac address, source MAC, APPID or input/output terminal slogan.
13. a kind of Substation Process layer network device according to claim 9, which is characterized in that the network equipment is in mirror image
The information at the time of message forwarded on port increases original message port numbers and input/output interchanger；It is exported in mirror port
Increase the time that message is exported in mirror port in message.
14. a kind of Substation Process layer network device according to claim 9, which is characterized in that occur in mirror port
It is duplicate to be mirrored packet loss, preservation or forward process when identical message.
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