CN106301996B - A kind of method and device that PTP message is tested automatically - Google Patents

Abstract

The present invention provides a method and device for automatic testing of PTP messages, which are applied to testing equipment. The method includes: determining a message type of a PTP message sent by a device under test; , determine the standard field value of all or part of the fields of the preset PTP message corresponding to the message type; compare the field value of the first field in the received PTP message with the standard field value of the first field Compare; if the field value of the first field in the PTP packet is inconsistent with the standard field value of the first field, output a first test result that the first field of the PTP packet does not meet the requirements. The pre-set standard field values are used to determine the intercommunication of PTP packets, which avoids certain difficulties caused by the intercommunication of different network systems and devices due to differences in the filling values of various fields when PTP-related devices implement the PTP function in the prior art. The problem.

Description

A method and device for automatic testing of PTP messages

technical field

The present invention relates to the field of communication technologies, and in particular, to a method and device for automatic testing of PTP (Precision Time Protocol, Precision Time Protocol) messages.

Background technique

In a communication network, the normal operation of many services requires network clock synchronization, that is, the time or frequency difference between devices in the entire network is kept within a reasonable error level. For example, in various network modes in the field of mobile communication, time synchronization is required between the air interfaces of base stations to work normally, including: TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time division synchronous code division multiple access), TD-LTE (Time Division Division LongTerm Evolution), CDMA2000 (Code Division Multiple Access 2000), LTE-A (LTE Advanced), MBMS (Multimedia Broadcast/Multicast Service), etc.

PTP is a time synchronization protocol that itself can be used for high-precision time synchronization between devices. In a PTP synchronization path, the master clock provides the source time for the synchronization of the next-level clock, that is, for the reference of the slave clock. The slave clock corrects the local time according to the time provided by the master clock by exchanging messages with the master clock.

Referring to FIG. 1 , it is a flowchart of PTP packet interaction in the prior art. PTP involves a variety of PTP packets, including: a synchronization (Sync) packet with interactive timestamps, a delay request (Delay_Req) packet, a delay response (Delay_Resp) packet, and an Announce packet carrying a time status. The specific value filled in each field of the PTP packet during application is related to the actual network, so it is not defined in detail in IEEE.

When the PTP-related equipment implements the PTP function, there are differences in the filling values of each field, which causes certain difficulties for the intercommunication of different network systems and equipment. In order to better realize device interworking, it is necessary to propose a solution that can accurately and effectively judge the interworking situation of PTP packets.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention is proposed in order to provide a method and device for automatic testing of PTP messages, which can judge the intercommunication situation of PTP messages by pre-setting standard field values, avoiding the need for PTP-related equipment in the prior art. In the PTP function, there are differences in the filled values of each field, which leads to certain difficulties in the intercommunication of different network systems and devices.

According to an aspect of the present invention, a method for automatic testing of PTP packets is provided, which is applied to a testing device, the method comprising: determining a packet type of a PTP packet sent by a device under test; Packet type, determine the standard field value of all or part of the fields of the preset PTP packet corresponding to the packet type; compare the field value of the first field in the received PTP packet with the value of the first field Standard field values are compared; if the field value of the first field in the PTP packet is inconsistent with the standard field value of the first field, output a first test result that the first field of the PTP packet does not meet the requirements.

Optionally, the method further includes: recording the time of each received PTP message, and calculating the first sending frequency of PTP messages of various message types according to the time of each received PTP message ; Extract the field value of the logMessageInterval field from the received PTP message, obtain the second transmission frequency of the received PTP message; Will be the first of the PTP message corresponding to the message type of the received PTP message The first sending frequency is compared with the second sending frequency of the received PTP message; if it is inconsistent, the second test result that the sending frequency of the received PTP message has a problem is returned.

Optionally, the method further includes: recording the field value of the logMessageInterval field carried in the Delay_Resp message sent and the sending frequency of the Delay_Resp message; recording the field value of the logMessageInterval field carried in the Delay_Resp message to send and the Delay_Resp The sending frequency of the message is compared with the actual sending frequency of the Delay_Req message sent by the device under test and the field value of the logMessageInterval field of the Delay_Req message sent by the device under test. the third test result.

Optionally, the method further includes: adjusting the sending frequency of the sent PTP message according to the preset numerical range of the sending frequency of the PTP messages of various message types stored; The response message of the sent PTP message returned by the test device returns the fourth test result that the device under test supports the sending frequency of the PTP message.

Optionally, the method further includes: recording the timestamp information of the received PTP message; if the timestamp information is a negative value, or the timestamp information is smaller than the previous message of the received PTP message If the timestamp information of the received PTP packet is incorrect, the fifth test result is returned.

Optionally, before determining the packet type of the PTP packet sent by the device under test, the method further includes: according to the value of the Ethernet type field in the Ethernet packet encapsulation, from the packet sent by the device under test. The PTP message is obtained by identifying it.

According to another aspect of the present invention, an apparatus for automatic testing of PTP messages is also provided, which is applied to test equipment, and the apparatus includes: a type determination module for determining a PTP message received by the device under test. a message type; a matching module, configured to determine, according to the determined message type, standard field values of all or part of the fields of the preset PTP message corresponding to the message type; a first comparison module, used for Compare the field value of the first field in the received PTP message with the standard field value of the first field; the first output module is used for if the field value of the first field in the PTP message is the same as the first field value in the PTP message. If the standard field value of a field is inconsistent, output the first test result that the first field of the PTP packet does not meet the requirements.

Optionally, the device further includes: a first recording module, configured to record the time of each received PTP message, and calculate the PTP of various message types according to the time of each received PTP message The first sending frequency of the message; the frequency determining module is used to extract the field value of the logMessageInterval field from the received PTP message to obtain the second sending frequency of the received PTP message; the second comparison module is used for Compare the first sending frequency of the PTP message corresponding to the message type of the received PTP message with the second sending frequency of the received PTP message; the second output module is used for If they are inconsistent, return the second test result that the sending frequency of the received PTP message is problematic.

Optionally, the device further includes: a second recording module, used to record the field value of the logMessageInterval field carried in the Delay_Resp message sent and the sending frequency of the Delay_Resp message; a third comparison module, used to send the The field value of the logMessageInterval field carried by the Delay_Resp message and the sending frequency of the Delay_Resp message are compared with the actual sending frequency of the Delay_Req message sent by the device under test and the field value of the logMessageInterval field of the Delay_Req message sent by the device under test. Comparison; the third output module is used to return the third test result with a problem in the sending frequency of the Delay_Resp message if it is inconsistent.

Optionally, the device further includes: an adjustment module configured to adjust the transmission frequency of the sent PTP message according to the preset numerical range of the transmission frequency of the PTP messages of various message types stored; the fourth output module is used to return the fourth test result that the device under test supports the sending frequency of PTP messages if the response message of the sent PTP message is not received within a predetermined time.

Optionally, the device further includes: a third recording module for recording the timestamp information of the received PTP message; a fifth output module for recording the timestamp information if the timestamp information is a negative value or the timestamp information If it is less than the timestamp information of the previous packet of the received PTP packet, the fifth test result that the timestamp information of the received PTP packet is incorrect is returned.

The beneficial effects of the present invention are as follows: the testing equipment can store the identified PTP messages, and pre-set standard field values (equivalent to standard values or value ranges) for storing all or part of the fields of each type of PTP message, and the detection of the PTP messages If a field of the detected PTP packet does not meet the standard field value in the test equipment, the first test result that the field of the PTP packet does not meet the requirements will be automatically returned, so that the preset test result can be passed. The standard field value judges the intercommunication of PTP messages, avoiding the problem of certain difficulties in intercommunication of different network systems and devices caused by differences in the filling values of various fields when PTP related devices implement the PTP function in the prior art. And it can also automatically determine whether there is a problem with key values such as PTP packet sending rate and time stamp.

Description of drawings

Fig. 1 shows the PTP message interaction flow chart in the prior art;

Fig. 2 shows the flow chart of the method for automatic testing of PTP message in the first embodiment of the present invention;

FIG. 3 shows one of the schematic diagrams of the test environment in the first embodiment of the present invention;

FIG. 4 shows the second schematic diagram of the test environment in the first embodiment of the present invention;

Fig. 5 shows the flow chart of the method for automatic testing of PTP message in the second embodiment of the present invention;

Fig. 6 shows the flow chart of the method for automatic testing of PTP message in the third embodiment of the present invention;

Fig. 7 shows the flow chart of the method for automatic testing of PTP message in the fourth embodiment of the present invention;

Fig. 8 shows the flow chart of the method for automatic testing of PTP message in the fifth embodiment of the present invention;

FIG. 9 is a schematic diagram of an apparatus for automatic testing of PTP packets in the sixth embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

Referring to FIG. 2, it is a flowchart of a method for automatic testing of PTP messages in the first embodiment of the present invention. The execution subject of the method may be a testing device, and the method includes the following steps:

Step S201: Determine the packet type of the received PTP packet sent by the device under test, and then proceed to step S203.

It should be noted that the test device can be directly connected to the device under test through an interface such as an Ethernet interface, and the device under test and the device under test exchange PTP packets, or the test device extracts the PTP packets exchanged between the two devices under test. arts.

In this embodiment, the packet type of the PTP packet may be determined according to the field value in the PTP packet. The details are as follows: In the detected PTP packets, the test device identifies the packet types of different PTP packets according to the messageType field in the payload. For example, the messageType field is 0x00, and the packet type of the PTP packet is Sync packet. ;The messageType field is 0x01, the message type of the PTP message is Delay_Req message; the messageType field is 0x09, the message type of the PTP message is Delay_Resp message; The messageType field is 0x0B, the message type of the PTP message is Announce message arts.

It should be noted that, in this embodiment, the PTP packet can be identified from the packet sent by the device under test according to the value of the Ethernet type field (Ethertype) in the Ethernet packet encapsulation, such as the value of the Ethernet type field. The value is 0x88F7.

Step S203 , according to the determined message type, determine standard field values of all or part of the fields of the preset PTP message corresponding to the message type, and then proceed to step S205 .

It should be noted that in this embodiment, the standard field values of all or part of the fields of multiple sets of PTP packets may be pre-stored, and the standard field values of all or part of the fields of any set of PTP packets can be selected for testing during testing. .

Step S205: Compare the field value of the first field in the received PTP message with the standard field value of the first field, and then proceed to step S207.

Step S207: If the field value of the first field in the PTP packet is inconsistent with the standard field value of the first field, output a first test result that the first field of the PTP packet does not meet the requirements.

In steps S201 to S207, the testing device can store the identified PTP messages, and preset standard field values (equivalent to standard values or value ranges) for all or part of the fields of each type of PTP message, and the detected PTP messages The packets are automatically compared. If a field of the detected PTP packet does not meet the standard field value in the test device, the first test result that the field of the PTP packet does not meet the requirements will be automatically returned. The standard field value is used to judge the intercommunication of PTP messages, which avoids the problem of certain difficulties caused by the intercommunication of different network systems and devices due to differences in the filling values of various fields when PTP related devices implement the PTP function in the prior art.

It should be noted that, in this embodiment, the PTP message may be: an Announce message, a Sync message, a Delay_Req message, and a Delay_Resp message.

The Announce message detection field includes part or all of the following fields: transportSpecific (transport protocol type) field, versionPTP (PTP version) field, messageLength (message length) field, domainNumber (time domain value) field, alternateMasterFlag (alternate master flag) ) field, unicastFlag (unicast flag) field, PTP profile Specific 1 (PTP profile feature 1) field, PTP profile Specific 2 (PTP profile feature 2) field, leap61 (whether the time second value is added by one, that is, the leap second is positive value) field, leap59 (whether the time second value is minus one, that is, a negative leap second value) field, currentUtcOffsetValid (whether the current leap second value is valid) field, ptpTimescale (PTP time scale), timeTraceable (time traceability) field, frequencyTraceable (frequency traceability) field, sourcePortIdentity (source port number) field, sequenceId (sequence number) Field, controlField (control field), logMessageInterval (message interval) field, originTimestamp (original timestamp) field, currentUtcOffset (current leap) Second value, the cumulative offset of the UTC time of the optimal clock relative to the TAI time) field, grandmasterPriority1 (the value of the master device clock priority one) field, grandmasterClockQuality (master device clock quality characteristics) field, grandmasterPriority2 (the master device clock priority) field Level 2) field, grandmasterIdentity (master device number) field, stepsRemoved (hops from the optimal clock to this clock node), and timeSource (time source attribute) field.

The Sync message detection field includes some or all of the following fields: transportSpecific field, versionPTP field, messageLength field, domainNumber field, alternateMasterFlag field, twoStepFlag (two-step mode flag) field, unicastFlag field, PTP profile Specific1 field, PTPprofile Specific 2 field, sourcePortIdentity field, sequenceId field, controlField field, logMessageInterval field, originTimestamp field.

The Delay_Req message detection field includes part or all of the following fields: transportSpecific field, versionPTP field, messageLength field, domainNumber field, sourcePortIdentity field, sequenceId (sequence number), controlField field, logMessageInterval field, and originTimestamp field.

The Delay_Resp message detection field includes some or all of the following fields: transportSpecific field, versionPTP field, messageLength field, domainNumber field, alternateMasterFlag field, sourcePortIdentity field, sequenceId field, controlField field, logMessageInterval field, receiveTimestamp (receive timestamp) field, requestingPortIdentity ( Receive port designation) field.

Referring to FIG. 3 , it is one of the schematic diagrams of the test environment in the first embodiment of the present invention. In the first topology environment, the test device is directly connected to the device under test through an interface such as an Ethernet interface, and PTP packets are exchanged between the device under test and the test device. The test equipment is used as the master clock, or the test equipment system is used as the master clock.

If the Announce/Sync/Delay_Resp message of the device under test is tested, the device under test is used as the master clock, and the test device is used as the slave clock. The device under test sends an Announce/Sync/Delay_Resp message, and the test device responds with a Delay_Req message.

If the Delay_Req message of the device under test is tested, the device under test is used as the master clock, and the device under test is used as the slave clock. The test device sends an Announce/Sync/Delay_Resp message, and the test device responds with a Delay_Req message.

Referring to FIG. 4, it is the second schematic diagram of the test environment in the first embodiment of the present invention. In the second topology environment, PTP messages are exchanged between the device under test A and the device under test B, and the test device extracts both PTP packets exchanged between them.

The following describes the testing of the sending frequency of the PTP message by the testing device with reference to the second embodiment, the third embodiment and the fourth embodiment.

Second Embodiment

Referring to FIG. 5 , it is a flowchart of a method for automatic testing of PTP packets in the second embodiment of the present invention. On the basis of the method in the first embodiment shown in FIG. 2 , in the second embodiment, the method further includes: :

Step S501: Record the time of each received PTP message, and calculate the first sending frequency of PTP messages of various message types according to the time of each received PTP message, and then proceed to step S503.

Step S503, extract the field value of the logMessageInterval field from the received PTP message, obtain the second sending frequency of the received PTP message, and then proceed to step S505.

Step S505: Compare the first sending frequency of the PTP message corresponding to the message type of the received PTP message with the second sending frequency of the received PTP message, and if they are inconsistent, go to step S507.

In step S505, the first sending frequency of the PTP message corresponding to the message type of the received PTP message may be obtained according to the message type of the received PTP message.

Step S507, returning the second test result that the received PTP message sending frequency has a problem.

In this embodiment, through steps S501 to S507, it is possible to detect the sending frequency of the PTP message of the test device, and to promote the interworking and application of the synchronous network.

Third Embodiment

Referring to FIG. 6 , it is a flowchart of a method for automatic testing of PTP packets in a third embodiment of the present invention. On the basis of the method in the first embodiment shown in FIG. 2 , in the third embodiment, the method further includes: :

Step S601, record the field value of the logMessageInterval field carried in the sent Delay_Resp message and the sending frequency of the Delay_Resp message, and then proceed to step S603.

Specifically, in the test environment shown in Figure 3, when the test device and the device under test directly exchange PTP messages, when the test device acts as the master clock, the test device records the field value of the logMessageInterval field carried in the Delay_Resp message sent and the sending frequency of the Delay_Resp message.

Step S603, the field value of the logMessageInterval field carried by the Delay_Resp message sent and the sending frequency of the Delay_Resp message, and the actual sending frequency of the Delay_Req message sent by the device under test and the logMessageInterval of the Delay_Req message sent by the device under test The field values of the fields are compared, and if they are inconsistent, go to step S605.

It should be noted that the actual sending frequency of the Delay_Req message sent by the device under test can be determined by recording the time when the PTP message is received.

Step S605 , returning the third test result that the delay_Resp packet sending frequency is problematic.

In this embodiment, through steps S601 to S605, the detection of the sending frequency of the Delay_Resp message of the test device can be implemented, and the synchronization network interworking and application can be promoted.

Fourth Embodiment

Referring to FIG. 7 , it is a flowchart of a method for automatic testing of PTP packets in the fourth embodiment of the present invention. On the basis of the method in the first embodiment shown in FIG. 2 , the method in the fourth embodiment further includes:

Step S701: Adjust the sending frequency of the sent PTP message according to the preset and stored numerical ranges of the sending frequency of the PTP message of various message types, and then proceed to step S703.

Step S703: If the response message of the sent PTP message replied by the device under test is not received within a predetermined time, return a fourth test result that the device under test supports the sending frequency of the PTP message.

In this embodiment, through steps S701 to S703, the detection of the sending frequency of the PTP message of the test device can be implemented, and the communication and application of the synchronous network can be promoted.

Fifth Embodiment

Referring to FIG. 8 , it is a flowchart of a method for automatic testing of PTP packets in the fourth embodiment of the present invention. On the basis of the method in the first embodiment shown in FIG. 2 , in the fourth embodiment, the method further includes: :

Step S801, record the timestamp information of the received PTP message, and then proceed to step S803.

Step S803, if the timestamp information is a negative value, or the timestamp information is less than the timestamp information of the previous packet of the received PTP packet, return the timestamp information of the received PTP packet Incorrect fifth test result.

It should be noted that the terms "first", "second", "third", "fourth" and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying that Number of technical features indicated.

In this embodiment, through steps S801 to S805, the time stamp of the PTP message of the test device can be detected, so as to promote synchronous network interworking and application.

Sixth Embodiment

Referring to FIG. 9 , it is a structural diagram of an apparatus for automatic testing of PTP messages in the sixth embodiment of the present invention. The apparatus is applied to testing equipment. The apparatus 900 includes: a type determination module 901 for The packet type of the PTP packet sent by the device; the matching module 903 is configured to, according to the determined packet type, determine the standard field value of all or part of the fields of the preset PTP packet corresponding to the packet type The first comparison module 905 is used for comparing the field value of the first field in the received PTP message with the standard field value of the first field; the first output module 907 is used for if the PTP If the field value of the first field in the packet is inconsistent with the standard field value of the first field, the first test result that the first field of the PTP packet does not meet the requirements is output.

Optionally, in another embodiment, the apparatus further includes: a first recording module, configured to record the time of each received PTP message, and calculate the time of each received PTP message according to the time of each received PTP message. The first sending frequency of PTP messages of various message types; the frequency determination module is used to extract the field value of the logMessageInterval field from the received PTP message, and obtain the second sending frequency of the received PTP message; Two comparison modules, configured to compare the first sending frequency of the PTP message corresponding to the message type of the received PTP message with the second sending frequency of the received PTP message; The second output module is configured to, if inconsistent, return the second test result in which the received PTP message has a problem with the sending frequency.

Optionally, in another embodiment, the apparatus further includes: a second recording module configured to record the field value of the logMessageInterval field carried in the Delay_Resp message sent and the sending frequency of the Delay_Resp message; a third ratio For the module, it is used to compare the field value of the logMessageInterval field carried in the Delay_Resp message sent and the sending frequency of the Delay_Resp message, and the actual sending frequency of the Delay_Req message sent by the device under test and the Delay_Req message sent by the device under test. Compare the field values of the logMessageInterval field of the .

Optionally, in another embodiment, the apparatus further includes: an adjustment module configured to adjust the sent PTP message according to the preset numerical range of the transmission frequency of the PTP messages of various message types. Sending frequency; the fourth output module is used to return the sending frequency of the PTP message supported by the tested device if the response message of the sent PTP message replied by the tested device is not received within a predetermined time. The fourth test result of the question.

Optionally, in another embodiment, the apparatus further includes: a third recording module for recording time stamp information of the received PTP message; a fifth output module for recording the time stamp information if the time stamp information is If the value is negative, or the timestamp information is smaller than the timestamp information of the previous packet of the received PTPPTP packet, the fifth test result that the timestamp information of the PTP packet received by the PTP is incorrect is returned.

In this embodiment, the device may store the identified PTP messages, and preset standard field values (equivalent to standard values or value ranges) that store all or part of the fields of each type of PTP message, and carry out processing with the detected PTP messages. Automatic comparison, if a field of the detected PTP packet does not meet the standard field value in the test device, it will automatically return the first test result that the field of the PTP packet does not meet the requirements, so that the preset standard field can be passed. The value judges the intercommunication of PTP messages, which avoids certain difficulties in intercommunication of different network systems and devices caused by differences in the filling values of various fields when PTP related devices implement the PTP function in the prior art. And it can automatically determine the detection of key functions such as PTP packet sending frequency and time stamp, and promote synchronous network interoperability and application.

In the several embodiments provided in this application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included individually, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium, and include specific instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store program codes medium.

The above are the preferred embodiments of the present invention, and it should be pointed out that for those skilled in the art, further improvements and modifications can be made without departing from the principles described in the present invention, and these improvements and modifications are also within the protection scope of the present invention.

Claims (11)

1. a kind of method that PTP message is tested automatically is applied to test equipment, which is characterized in that the described method includes:

Determine the type of message for receiving the PTP message for being devices under transmission；

According to the determining type of message, determine pre-set PTP message corresponding with the type of message whole or The standard word segment value of part field；

The field value of first field in the PTP message received is compared with the standard word segment value of the first field；

If the field value of the first field and the standard word segment value of the first field are inconsistent in the PTP message, the PTP is exported First field of message is unsatisfactory for the first desired test result.

2. the method as described in claim 1, which is characterized in that the method also includes:

The time of each PTP message received is recorded, and according to the time of each PTP message received, calculates various reports The first of the PTP message of literary type sends frequency；

The field value of the record time interval logMessageInterval field of log is extracted from the PTP message received, The second of the PTP message received sends frequency；

Frequency is sent by the first of PTP message corresponding with the type of message of PTP message received, is received with described PTP message second transmission frequency be compared；

If inconsistent, problematic second test result of transmission frequency of the PTP message received described in return.

3. the method as described in claim 1, which is characterized in that the method also includes:

Record send delay respond Delay_Resp message carry logMessageInterval field field value and The transmission frequency of the Delay_Resp message；

The field value and the Delay_ for the logMessageInterval field that the Delay_Resp message of transmission is carried The transmission frequency of Resp message, with the practical transmission frequency of the latency request Delay_Req message that is devices under transmission and The field value for being devices under the logMessageInterval field of the Delay_Req message of transmission is compared；

If inconsistent, return to the Delay_Resp message and send the problematic third test result of frequency.

4. the method as described in claim 1, which is characterized in that the method also includes:

According to the numberical range of the transmission frequency of the PTP message for the various type of messages for presetting storage, the PTP of sending is adjusted The transmission frequency of message；

If not receiving the response message for being devices under the PTP message of the sending of reply in the given time, return It is described to be devices under problematic 4th test result of transmission frequency for supporting PTP message.

5. the method as described in claim 1, which is characterized in that the method also includes:

Record the timestamp information of the PTP message received；

If the timestamp information is the previous message that negative value or timestamp information are less than the PTP message received Timestamp information, then the 5th test result of the timestamp information mistake of the PTP message received described in return.

6. method as claimed in any one of claims 1 to 5, which is characterized in that be devices under transmission determining to receive Before the type of message of PTP message, the method also includes:

According to the numerical value of ethernet type field in the encapsulation of ether network packet, identifies and obtain from the message for be devices under transmission PTP message.

7. a kind of device that PTP message is tested automatically, it is applied to test equipment, which is characterized in that described device includes:

Determination type module, for determining the type of message for receiving the PTP message for being devices under transmission；

Matching module, for determining pre-set PTP corresponding with the type of message according to the determining type of message The standard word segment value of all or part of field of message；

First comparison module, for by the field value of the first field and the standard of the first field in the PTP message received Field value is compared；

First output module, if for the first field in the PTP message field value and the first field standard word segment value not Unanimously, then the first field for exporting the PTP message is unsatisfactory for the first desired test result.

8. device as claimed in claim 7, which is characterized in that described device further include:

First logging modle, for recording the time of each PTP message received, and according to each PTP message received Time, calculate the PTP message of various type of messages first send frequency；

Frequency determining module is obtained for extracting the field value of logMessageInterval field from the PTP message received Second to the PTP message received sends frequency；

Second comparison module, for by the hair of the first PTP message corresponding with the type of message of PTP message received Frequency is sent, is compared with the second transmission frequency of the PTP message received；

Second output module, if for inconsistent, the transmission frequency problematic second of the PTP message received described in return Test result.

9. device as claimed in claim 7, which is characterized in that described device further include:

Second logging modle, for recording the word for the logMessageInterval field that the Delay_Resp message sent carries The transmission frequency of segment value and the Delay_Resp message；

Third comparison module, the field for the logMessageInterval field that the Delay_Resp message for that will send carries The transmission frequency of value and the Delay_Resp message, the practical transmission with the Delay_Req message for being devices under transmission Frequency and the field value of logMessageInterval field of Delay_Req message for being devices under transmission are compared It is right；

Third output module, if returning to Delay_Resp message for inconsistent and sending the problematic third test knot of frequency Fruit.

10. device as claimed in claim 7, which is characterized in that described device further include:

Module is adjusted, the numberical range of the transmission frequency of the PTP message of the various type of messages of storage is preset for basis, Adjust the transmission frequency of the PTP message issued；

4th output module, if for not receiving the PTP message for being devices under the sending of reply in the given time Response message, then return described in be devices under support PTP message problematic 4th test result of transmission frequency.

11. device as claimed in claim 7, which is characterized in that described device further include:

Third logging modle, for recording the timestamp information of the PTP message received；

5th output module, if being that negative value or timestamp information are less than the PTP report received for the timestamp information The timestamp information of the previous message of text, then the 5th test of the timestamp information mistake of the PTP message received described in return As a result.