CN104717109B - Wide area network link analog detection method and system - Google Patents
Wide area network link analog detection method and system Download PDFInfo
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Abstract
The present invention relates to network communication technology fields, it discloses a kind of wide area network link analog detection method, solve the problems, such as to need a large amount of wide area network board to cause resource nervous for test wide area network link and its application of support, agreement in traditional technology.It includes：Simulation creates pseudo- Wide Area Network interface in local terminal network equipment and peer network device, and the wide area network link message sent out from the pseudo- Wide Area Network interface of local terminal network equipment is packaged into Ether frame message according to setting format and is sent from the physical interface of binding；After peer network device receives Ether frame message by its physical interface, it is wide area network link message to restore the Ether frame message；And the pseudo- Wide Area Network interface of the local reception message is parsed, the wide area network link message restored, which is submitted to local corresponding pseudo- Wide Area Network interface, to be handled.In addition, the invention also discloses corresponding test systems to be suitable for wide area network link simulation test.
Description
Technical field
The present invention relates to network communication technology field, more particularly to a kind of wide area network link analog detection method and system.
Background technology
Current network communication is grown rapidly, and each manufacturer of the communications industry reduces as far as possible under the premise of ensuring quality grinds
Cost is sent out, especially for test, the task of completion can be tested by automation mode need not then put into test manpower, and to surveying
The cost control for trying equipment and Labcard driver is even more harsh.It is still wide to the use of wide area network link in Client application scene
It is general, and more and more business are completed to communicate on a wide area network, therefore for each manufacturer, ensure that wide area network link high quality is logical
Letter is very important.In other words, to the test of wide area network link also with greater need for reinforcement.
Currently, being tested for wide area network link and its application of support, agreement, it is necessary in corresponding wide area network board
It is completed in driving, especially needs a large amount of wide area network links that could complete to test in component environment, to wide area network board resource
It is required that meeting higher, and be that impossible provide sufficient resource, thus resource anxiety problem occur from R＆D costs.
Invention content
The technical problem to be solved by the present invention is to：It proposes a kind of wide area network link analog detection method and system, solves
It is the application of test wide area network link and its support in traditional technology, agreement needs a large amount of wide area network board to cause resource nervous
The problem of.
The technical solution adopted by the present invention to solve the technical problems is：
Wide area network link simulated testing system, including local terminal network equipment and peer network device,
The local terminal network equipment is connected with the peer network device by ethernet line, and enables pseudo- wide area respectively
Network interface function, simulation creates pseudo- Wide Area Network interface, and the pseudo- Wide Area Network interface of establishment is bound with its physical interface；
The local terminal network equipment, the wide area network link message for will be sent out from its pseudo- Wide Area Network interface is by according to setting
Format is packaged into Ether frame message and is sent from the physical interface of binding；
The peer network device, for receiving the Ether frame report that the local terminal network equipment is sent by its physical interface
Wen Hou, it is wide area network link message to restore the Ether frame message；And the pseudo- Wide Area Network interface of the local reception message is parsed, it will
The wide area network link message restored is submitted to local corresponding pseudo- Wide Area Network interface and is handled.
Further, the local terminal network equipment includes PWI configuration modules, the first PWI logical drives module and message hair
Sending module, the peer network device includes PWI configuration modules, the 2nd PWI logical drives module and message receiving module,
The PWI configuration modules create pseudo- Wide Area Network interface for simulating, and by the pseudo- Wide Area Network interface of establishment and local
Physical interface is bound；
The first PWI logical drive modules, wide area network link message for will be sent out from pseudo- Wide Area Network interface according to
Setting format is packaged into Ether frame message, and submits to message sending module；
The message sending module, the Ether frame message for completing encapsulation are sent to from the physical interface locally bound
Peer network device；
The message receiving module, for receiving the Ether frame that the local terminal network equipment is sent by local physical interface
Message is identifying be its type to be to submit to the opposite end PWI logical drive modules after pseudo- Wide Area Network interface message；
The 2nd PWI logical drive modules are additionally operable to restore the Ether frame message to be wide area network link message, and parse
The pseudo- Wide Area Network interface for going out the local reception message is submitted to the wide area network link message restored local corresponding pseudo- wide
Domain network interface processing.
Further, PWI configuration modules simulation creates pseudo- Wide Area Network interface, and by the pseudo- Wide Area Network interface of establishment with
The method of local physical interface binding is：
PWI groups are being locallyd create by order, are then specifying the PWI groups to create the type of puppet Wide Area Network interface, and by institute
It states PWI groups to be bound with local physical interface, and the MAC Address and opposite end PWI group numbers of specified opposite end physical interface, finally exist
A pseudo- Wide Area Network interface is created in the PWI groups locallyd create.
Further, the first PWI logical drives module is packaged into Ether frame message according to setting format and specifically refers to,
The first PWI logical drives module specific protocol type defined in too frame message, and puppet is carried in Ether frame message
The control field of Wide Area Network interface needs which pseudo- Wide Area Network interface of peer network device to come receiving area to identify the message
Reason.
Further, it is wide area network link message that the 2nd PWI logical drive modules, which restore the Ether frame message, and is solved
The method that the pseudo- Wide Area Network interface of the local reception message is precipitated is：
The 2nd PWI logical drives module removes the ether head in Ether frame message, is reduced into original wide area
Net link packet, and the pseudo- Wide Area Network interface of the local reception message is parsed according to the control field that message carries.
In addition, another object of the present invention, which also resides in, proposes a kind of wide area network link analog detection method, including following step
Suddenly：
A. pseudo- Wide Area Network interface function is enabled respectively in local terminal network equipment and peer network device, simulation creates pseudo- wide
Domain network interface, and the pseudo- Wide Area Network interface of establishment is bound with its physical interface；
B. the wide area network link message sent out from the pseudo- Wide Area Network interface of local terminal network equipment is by according to setting format encapsulation
It is sent from the physical interface of binding at Ether frame message；
C. after peer network device receives Ether frame message by its physical interface, it is wide area network to restore the Ether frame message
Link packet；And the pseudo- Wide Area Network interface of the local reception message is parsed, the wide area network link message restored is submitted
It is handled to local corresponding pseudo- Wide Area Network interface.
Further, in step a, the simulation creates pseudo- Wide Area Network interface, and by the pseudo- Wide Area Network interface of establishment and its
The method that physical interface is bound is：
PWI groups are being locallyd create by order, are then specifying the PWI groups to create the type of puppet Wide Area Network interface, and by institute
It states PWI groups to be bound with local physical interface, and the MAC Address and opposite end PWI group numbers of specified opposite end physical interface, finally exist
A pseudo- Wide Area Network interface is created in the PWI groups locallyd create.
Further, in step b, wide area network link message quilt that the pseudo- Wide Area Network interface of the local terminal network equipment is sent out
According to set format be packaged into the specific method of Ether frame message as, specific protocol type is specified in Ether frame message, and
The control field that pseudo- Wide Area Network interface is carried in Ether frame message needs which pseudo- wide area network of opposite end to connect to identify the message
Mouth is handled to receive.
Further, in step c, it is wide area network link message that the peer network device, which restores the Ether frame message, and
The method for parsing the pseudo- Wide Area Network interface of the local reception message is：
The ether head in Ether frame message is removed by the 2nd PWI logical drives module in peer network device,
It is reduced into original wide area network link message, and the puppet for parsing according to the control field that message carries the local reception message is wide
Domain network interface.
Further, in step b, further include：By the first PWI logical drive modules of local terminal network equipment to establishment
Pseudo- Wide Area Network interface carries out Limit Rate, simulates the line congestion situation of true physical interface.
The beneficial effects of the invention are as follows：
1) it only needs the ether interface at equipment both ends carrying out interconnecting interface when using PWI function networkings, need not use
True wan interface cards can meet the functional test of link protocol and upper layer application on Wide Area Network interface, to letter
Change test environment, saves testing cost；
2) it can be simulated by an ether interface and create any number of virtual Wide Area Network interface (in device systems permission
In range), and the Wide Area Network interface of multiple and different types can be created according to different PWI groups are configured, it can easily build logical
Cross the test environment for a large amount of Wide Area Network interface that true wan interface cards cannot be satisfied.
Description of the drawings
Fig. 1 is the wide area network link analog detection method flow chart in the present invention；
Fig. 2 is the wide area network link simulated testing system schematic diagram in embodiment；
Fig. 3 is the high-level schematic functional block diagram that configures on the physical interface of the network equipment；
Fig. 4 is the encapsulation format on the privately owned head of PWI messages；
Fig. 5 is the PWI message formats completed after encapsulation.
Specific implementation mode
The present invention is directed to propose a kind of wide area network link analog detection method and system, solve wide for test in traditional technology
Domain network chain road and its application of support, agreement need a large amount of wide area network board to cause the problem of resource anxiety.
As shown in Figure 1, the wide area network link analog detection method in the present invention includes the following steps：
S101. simulation creates pseudo- Wide Area Network interface and binding physical interface：
In this step, pseudo- Wide Area Network interface function is enabled in local terminal network equipment and peer network device, simulation creates
Pseudo- Wide Area Network interface, and the pseudo- Wide Area Network interface of establishment is bound with its physical interface；
S102. transmission is packaged to the PWI messages sent out from pseudo- Wide Area Network interface：
In this step, by the wide area network link message sent out from the pseudo- Wide Area Network interface of local terminal network equipment by according to setting
Format is packaged into Ether frame message and is sent from the physical interface of binding；
S103. peer network device receives message by its physical interface, is reduced into PWI messages, is parsed from PWI messages
Go out pseudo- Wide Area Network interface, the PWI messages restored are submitted into corresponding pseudo- Wide Area Network interface processing：
In this step, after peer network device receives Ether frame message by its physical interface, the Ether frame message is restored
For wide area network link message；And parse the pseudo- Wide Area Network interface of the local reception message, the wide area network link that will be restored
Message is submitted to local corresponding pseudo- Wide Area Network interface and is handled.
Embodiment：
It is set as shown in Fig. 2, the wide area network link simulated testing system in this example includes local terminal network equipment A and correspondent network
Standby B, the Ethernet interface ETH0 of two equipment pass through ether connection；Match on the Ethernet interface of local terminal network equipment A
It is equipped with PWI configuration modules, the first PWI logical drives module, message sending module；In the Ethernet interface of peer network device B
PWI configuration modules, message receiving module and the 2nd PWI logical drive modules are configured on ETH0, as shown in Figure 3；
Wherein, the PWI configuration modules create pseudo- Wide Area Network interface for simulating, and by the pseudo- Wide Area Network interface of establishment
It is bound with local physical interface；
The first PWI logical drive modules, wide area network link message for will be sent out from pseudo- Wide Area Network interface according to
Setting format is packaged into Ether frame message, and submits to message sending module；
The message sending module, the Ether frame message for completing encapsulation are sent to from the physical interface locally bound
Peer network device；
The message receiving module, for receiving the Ether frame that the local terminal network equipment is sent by local physical interface
Message is identifying be its type to be to submit to the 2nd PWI logical drive modules after pseudo- Wide Area Network interface message；
The 2nd PWI logical drive modules are wide for restoring the Ether frame message that the message receiving module receives
Domain net link packet, and the pseudo- Wide Area Network interface of the local reception message is parsed, the wide area network link message that will be restored
Submit to local corresponding pseudo- Wide Area Network interface processing.
The specific implementation process of wide area network link analog detection method is specifically described below：
One, first, the PWI functions of local terminal network equipment A and peer network device B are enabled, simulation creates pseudo- wide area network and connects
Mouthful, and the pseudo- Wide Area Network interface of establishment is bound with its physical interface；
Simulation creates pseudo- Wide Area Network interface and the mode bound with its physical interface is as follows：
1) PWI groups are created by order, any number of pseudo- Wide Area Network interface can be created under a PWI group, but these connect
Mouth all co-owns the attribute of PWI groups；
2) the PWI groups is specified to create the type of pseudo- Wide Area Network interface (such as：Serial, pos, sync, async, atm), this
In by taking serial types as an example；
3) PWI groups and Ethernet interface ETH0 are bound；
4) MAC Address of opposite end Ethernet interface ETH0 is specified；
5) opposite end PWI group numbers are specified；
6) a pseudo- Wide Area Network interface is created in PWI groups, the wherein interface index of the puppet Wide Area Network interface can pass through
PWI group numbers are formed with No. unit specified when creating interface, such as：serial0/0.
The pseudo- Wide Area Network interface created through the above steps for link layer and the above level with physical interface without appoint
What difference can encapsulate various link layer protocols (such as PPP, HDLC, FR etc.), but pseudo- Wide Area Network interface on pseudo- Wide Area Network interface
It is that each pseudo- Wide Area Network interface realizes that logic is driven by PWI logical drive modules without true physical drives, therefore in the present invention
Dynamic, the major function of the logical drive is to complete transparent biography of the message of wide area network link encapsulation format on ether circuit
It is defeated.
Two, on local terminal network equipment A message transmission：
1) message of original wide area network link encapsulation is sent by pseudo- Wide Area Network interface serial0/0, and final message can arrive
First PWI logical drive modules are handled.
2) local terminal PWI logical drives are that the message encapsulates the privately owned heads PWI, carry group and No. unit.Privately owned head
Encapsulation format is as shown in figure 4, wherein：
type：1 byte (1Byte) indicates type of message, is PWI protocol massages or PWI data messages for distinguishing.
ifType：1 byte (1Byte), interface type (PWI groups configuration attribute, type include serial, pos, sync,
Async, atm), the different types of interface negotiation in both ends is unsuccessful.
group：2 bytes (2Byte), the group number of opposite end PWI indicate that opposite end handles the PWI group numbers of the message.
unit：2 bytes (2Byte), interface index, both ends interface index are identical.
len：2 bytes (2Byte), the total length of original wide area network link message.
3) MAC Address of ether interface is interconnected according to the opposite end of configuration, Ether protocoll class is arranged in encapsulation Ethernet link head
Type is 0x9800 (can be the value of other and existing protocol type Lothrus apterus), and the message format after encapsulation is as shown in Figure 5.
4) message sending module sends out the Ether frame format message after encapsulation from the physics ether interface ETH0 of configuration binding
It is sent to ether circuit up.
Three, on peer network device B message reception：
1) message receiving module according to the protocol type of message (0x9800, can be other with existing protocol type without punching
Prominent value), identify it is the message for belonging to PWI encapsulation, PWI logical drive module receptions will be transferred to handle.
2) the 2nd PWI logical drive modules parse group and No. unit carried in PWI header informations, so that it is determined that
The message needs the link processing for being sent to which pseudo- Wide Area Network interface.
3) the 2nd PWI logical drive module PWI logical drives modules remove the ether head of message, are reduced into original
The message of wide area network link encapsulation.
4) original wide area network packet is handed over into corresponding pseudo- Wide Area Network interface link processing.
The logical drive part of pseudo- Wide Area Network interface in the present invention simultaneously, Flow Limit is realized using the mechanism of token bucket
Speed, bandwidth congestion situation of the simulation similar to physical interface.
It should be noted that the message of equipment both ends wide area network link encapsulation in the present invention is packaged into Ethernet message,
The transparent transmission on ether circuit.It, theoretically can be in fact, the interface for being not restricted to EtherType of PWI group bindings
Any kind of physical interface is bound, only the frame format of final encapsulation has differences.Here it is considered that in practical application most often
With it is most convenient that EtherType interface, therefore the present invention only be carried out on Ethernet interface.In addition, passing through hand in the present invention
The information (MAC Address and PWI group numbers) of work configuration opposite end encapsulates to complete final message, can also actually pass through realization
PWI proprietary protocols negotiate the information at interactive both ends, are not necessarily to manual configuration.
Claims (8)
1. wide area network link simulated testing system, which is characterized in that including local terminal network equipment and peer network device,
The local terminal network equipment is connected with the peer network device by ethernet line, and is enabled pseudo- wide area network respectively and connect
Mouth function, simulation creates pseudo- Wide Area Network interface, and the pseudo- Wide Area Network interface of establishment is bound with its physical interface；
The local terminal network equipment, the wide area network link message for will be sent out from its pseudo- Wide Area Network interface is by according to setting format
Ether frame message is packaged into send from the physical interface of binding；
The peer network device, for receiving the Ether frame message that the local terminal network equipment is sent by its physical interface
Afterwards, it is wide area network link message to restore the Ether frame message；And the pseudo- Wide Area Network interface of the local reception message is parsed, it will also
The wide area network link message of original out is submitted to local corresponding pseudo- Wide Area Network interface and is handled；
The simulation creates pseudo- Wide Area Network interface, and the pseudo- Wide Area Network interface of establishment is bound with its physical interface, specifically
Including：PWI groups are being locallyd create by order, are then specifying the PWI groups to create the type of pseudo- Wide Area Network interface, and will be described
PWI groups are bound with local physical interface, and the MAC Address and opposite end PWI group numbers of specified opposite end physical interface, finally at this
A pseudo- Wide Area Network interface is created in the PWI groups that ground creates.
2. wide area network link simulated testing system as described in claim 1, which is characterized in that the local terminal network equipment includes
PWI configuration modules, the first PWI logical drives module and message sending module, the peer network device include PWI configuration moulds
Block, the 2nd PWI logical drives module and message receiving module,
The PWI configuration modules create pseudo- Wide Area Network interface for simulating, and by the pseudo- Wide Area Network interface of establishment and local physics
Interface is bound；
The first PWI logical drive modules, the wide area network link message for will be sent out from pseudo- Wide Area Network interface is according to setting
Format is packaged into Ether frame message, and submits to message sending module；
The message sending module, the Ether frame message for completing encapsulation are sent to opposite end from the physical interface locally bound
The network equipment；
The message receiving module, for receiving the Ether frame report that the local terminal network equipment is sent by local physical interface
Text is identifying be its type to be to submit to the opposite end PWI logical drive modules after pseudo- Wide Area Network interface message；
The 2nd PWI logical drive modules are wide area network for restoring the Ether frame message that the message receiving module receives
Link packet, and the pseudo- Wide Area Network interface of the local reception message is parsed, the wide area network link message restored is submitted
To local corresponding pseudo- Wide Area Network interface processing.
3. wide area network link simulated testing system as claimed in claim 2, which is characterized in that the first PWI logical drives
Module is packaged into Ether frame message according to setting format and specifically refers to,
The first PWI logical drives module specific protocol type defined in too frame message, and taken in Ether frame message
Control field with pseudo- Wide Area Network interface needs which pseudo- Wide Area Network interface of peer network device to receive to identify the message
Processing.
4. wide area network link simulated testing system as claimed in claim 2, which is characterized in that the 2nd PWI logical drives
It is wide area network link message that module, which restores the Ether frame message, and parses the side of the pseudo- Wide Area Network interface of the local reception message
Method is：
The 2nd PWI logical drives module removes the ether head in Ether frame message, is reduced into original wide area network chain
Road message, and the pseudo- Wide Area Network interface of the local reception message is parsed according to the control field that message carries.
5. wide area network link analog detection method, which is characterized in that include the following steps：
A. pseudo- Wide Area Network interface function is enabled respectively in local terminal network equipment and peer network device, simulation creates pseudo- wide area network
Interface, and the pseudo- Wide Area Network interface of establishment is bound with its physical interface；
B. the wide area network link message sent out from the pseudo- Wide Area Network interface of local terminal network equipment by according to setting format be packaged into
Too frame message is sent from the physical interface of binding；
C. after peer network device receives Ether frame message by its physical interface, it is wide area network link to restore the Ether frame message
Message；And the pseudo- Wide Area Network interface of the local reception message is parsed, the wide area network link message restored is submitted to this
The corresponding pseudo- Wide Area Network interface in ground is handled；
In step a, the simulation creates pseudo- Wide Area Network interface, and the pseudo- Wide Area Network interface of establishment is tied up with its physical interface
Fixed method is：
PWI groups are being locallyd create by order, are then specifying the PWI groups to create the type of puppet Wide Area Network interface, and by the PWI
Group is bound with local physical interface, and the MAC Address and opposite end PWI group numbers of specified opposite end physical interface, finally in local
A pseudo- Wide Area Network interface is created in the PWI groups of establishment.
6. wide area network link analog detection method as claimed in claim 5, which is characterized in that in step b, the local terminal network
The wide area network link message that the pseudo- Wide Area Network interface of equipment is sent out is packaged into the specific side of Ether frame message according to setting format
Method is specific protocol type to be specified in Ether frame message, and the control of pseudo- Wide Area Network interface is carried in Ether frame message
Field needs which pseudo- Wide Area Network interface of opposite end to receive processing to identify the message.
7. wide area network link analog detection method as claimed in claim 6, which is characterized in that in step c, the correspondent network
It is wide area network link message that equipment, which restores the Ether frame message, and parses the side of the pseudo- Wide Area Network interface of the local reception message
Method is：
The ether head in Ether frame message is removed by the 2nd PWI logical drives module in peer network device, is restored
The pseudo- wide area network of the local reception message is parsed at original wide area network link message, and according to the control field that message carries
Interface.
8. the wide area network link analog detection method as described in claim 5-7 any one, which is characterized in that in step b, also
Including：Limit Rate, mould are carried out to the pseudo- Wide Area Network interface of establishment by the first PWI logical drives module of local terminal network equipment
Intend the line congestion situation of true physical interface.
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| CN106789256B (en) * | 2016-12-23 | 2019-12-20 | 携程旅游网络技术（上海）有限公司 | Test system and test method for simulating wide area network environment |
| CN110730126B (en) * | 2019-10-22 | 2022-07-22 | 迈普通信技术股份有限公司 | Link aggregation system, data frame sending or receiving method and device |
| CN113037581B (en) * | 2019-12-24 | 2024-02-27 | 迈普通信技术股份有限公司 | Backboard channel testing method and device, board card and computer readable storage medium |
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| CN1996896A (en) * | 2005-12-31 | 2007-07-11 | 迈普（四川）通信技术有限公司 | Testing method of the data communication interface |
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