CN109412761A - A kind of method and device of static state PW MAC withdraw message interaction - Google Patents
A kind of method and device of static state PW MAC withdraw message interaction Download PDFInfo
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- CN109412761A CN109412761A CN201710712952.XA CN201710712952A CN109412761A CN 109412761 A CN109412761 A CN 109412761A CN 201710712952 A CN201710712952 A CN 201710712952A CN 109412761 A CN109412761 A CN 109412761A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1642—Formats specially adapted for sequence numbers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of method and devices of static state PW MAC withdraw message interaction, it is related to static PW MAC withdraw technical field, its method includes: message source to the N number of MAC withdraw message containing MAC list of message receiver Batch sending, and after the Batch sending, response of the message receiver to transmitted N number of MAC withdraw message is waited；Message receiver generates response message after receiving N number of MAC withdraw message, each of to be received the MAC withdraw message, and is sent to the message source；Message source is according to the response message integrality received, it is determined whether retransmits N number of MAC withdraw message containing MAC list.
Description
Technical field
The present invention relates to static PW (Pseudo-Wire, pseudo-wire) MAC (Media Access Control, medium access controls
System) withdraw technical field, in particular to a kind of method and device of static state PW MAC withdraw message interaction.
Background technique
RFC7769 describes the method that static PW sends MAC withdraw, is different from dynamic PW described in RFC4762
The method for sending MAC withdraw, it is message to be sent using PW forwarding channel, and move that static PW, which sends MAC withdraw,
It is logical using LDP (Label Distribution Protocol, tag distribution protocol) session that state PW, which sends MAC withdraw,
Road is sent, and the message format of the two is also different.
Fig. 1 is the message format that static state PW sends MAC withdraw, it can be seen that " TLV (Type-length-
Value, type-length-message store content) Length " only one byte-sized, therefore the length maximum value of entire message
Only 255 bytes, 2 bytes of removal " TLV Length ", 8 bytes of " Sequence TLV ", and " MAC List TLV "
4 bytes on head, at most only 241 bytes store MAC Address；One 6 byte of MAC Address, most messages can only be taken
40 MAC Address of band.
Dynamic PW sends the message format of MAC withdraw, is the extension based on LDP session message, and message can be with
Carry a MAC Address more than 1000.
Meanwhile in order to ensure reliability, RFC7769 is alsied specify, and transmitting terminal sends static state PW MAC withdraw and carries
After the message of MAC list, after needing that receiving end is waited to receive message, then response message is responded, transmitting terminal receives the response message
Afterwards, could continue to construct the message transmission that static state PW MAC withdraw carries MAC list with remaining MAC；Fig. 2 shows
The interaction flow of the message of RFC7769 description.And dynamic PW sends the message of MAC withdraw then without this interactive process,
It only needs to send message, until MAC Address has all been sent, reliability is guaranteed by LDP session.
It can thus be seen that the transmitting efficiency of static state PW MAC withdraw message is relatively low, when there is a large amount of MAC Address
When needing to be sent to opposite end, the total time needed is many more than the mode of dynamic PW transmission MAC withdraw message；
When receiving end needs to delete MAC, data traffic is re-broadcast, when otherwise may stop, the mode of static PW MAC withdraw
It is likely to result in the cutout of relatively long time.
Summary of the invention
The technical issues of scheme provided according to embodiments of the present invention solves is the hair of static PW MAC withdraw message
Send efficiency relatively low.
A kind of method of the static state PW MAC withdraw message interaction provided according to embodiments of the present invention, comprising:
Message source is to the N number of MAC withdraw message containing MAC list of message receiver Batch sending, and in institute
After stating Batch sending, response of the message receiver to transmitted N number of MAC withdraw message is waited；
Message receiver is after receiving N number of MAC withdraw message, each of to be received the MAC
Withdraw message generates response message, and is sent to the message source；
Message source is according to the response message integrality received, it is determined whether retransmits described N number of containing MAC list
MAC withdraw message；
Wherein, the PW refers to pseudo-wire；The MAC refers to medium access control；The N refers to positive integer.
Preferably, the MAC withdraw message includes test serial number；Wherein, the message source is received to message
Hold the test serial number in the N number of MAC withdraw message of Batch sending incremented by successively according to transmission sequence.
Preferably, the message receiver is after receiving N number of MAC withdraw message, for each institute received
Stating MAC withdraw message generation response message includes:
Message receiver extracts in the current MAC withdraw message after receiving current MAC withdraw message
Test serial number；
Message receiver by by the current MAC withdraw message test serial number and a upper MAC
Test serial number in withdraw message is compared, it is determined whether needs to generate and the current MAC withdraw message phase
The response message answered；
If the report in test serial number and upper MAC withdraw message in the current MAC withdraw message
The comparison result of literary serial number be it is correct, then message receiver determine need generate it is corresponding to the current MAC withdraw message
Response message；
If the report in test serial number and upper MAC withdraw message in the current MAC withdraw message
The comparison result of literary serial number is mistake, then message receiver, which determines, does not need to generate and the current MAC withdraw message phase
The response message answered.
Preferably, the message source is according to the response message integrality received, it is determined whether retransmit it is described it is N number of containing
The MAC withdraw message of MAC list includes:
Message source is detected by the corresponding response message of N number of MAC withdraw message to Batch sending,
Judge whether the response message has all received；
If judging, the response message is not received all, and message source, which determines to retransmit, described N number of contains MAC list
MAC withdraw message；
If judging, the response message all receives, and message source determination does not retransmit described N number of containing MAC column
The MAC withdraw message of table.
Preferably, the message source passes through the corresponding response report of N number of MAC withdraw message to Batch sending
Text is detected, and is judged whether the response message all receives and is included:
Message source successively receives each response message of message receiver transmission, and from each response message
Obtain test serial number；
The message source sequence of message number acquired by statistics, judges whether the response message has all received
It arrives.
A kind of device of the static state PW MAC withdraw message interaction provided according to embodiments of the present invention, comprising:
Message source, for the N number of MAC withdraw message containing MAC list of message receiver Batch sending,
And after the Batch sending, response of the message receiver to transmitted N number of MAC withdraw message, and root are waited
According to the response message integrality received, it is determined whether retransmit N number of MAC withdraw message containing MAC list；
Message receiver, for after receiving N number of MAC withdraw message, each of to be received the MAC
Withdraw message generates response message, and is sent to the message source；
Wherein, the PW refers to pseudo-wire；The MAC refers to medium access control；The N refers to positive integer.
Preferably, the MAC withdraw message includes test serial number；Wherein, the message source is received to message
Hold the test serial number in the N number of MAC withdraw message of Batch sending incremented by successively according to transmission sequence.
Preferably, the message receiver includes:
Extraction unit, for after receiving current MAC withdraw message, extracting the current MAC withdraw report
Test serial number in text；
Determination unit, for by by the current MAC withdraw message test serial number and a upper MAC
Test serial number in withdraw message is compared, it is determined whether needs to generate and the current MAC withdraw message phase
The response message answered；
Response message processing unit, for working as the test serial number in the current MAC withdraw message and upper one
The comparison result of test serial number in MAC withdraw message is correct, it is determined that needs to generate and the current MAC
The corresponding response message of withdraw message, and when in the current MAC withdraw message test serial number with upper one
The comparison result of test serial number in MACwithdraw message is mistake, it is determined that does not need to generate and the current MAC
The corresponding response message of withdraw message.
Preferably, the message source includes:
Judging unit, for being examined by the corresponding response message of N number of MAC withdraw message to Batch sending
It surveys, judges whether the response message has all received；
Retransmission process unit, for when judge that the response message does not receive all, it is determined that re-transmission it is described it is N number of containing
The MAC withdraw message of MAC list, and work as and judge that the response message all receives, it is determined that it does not retransmit described
N number of MAC withdraw message containing MAC list.
Preferably, the judging unit is specifically used for successively receiving each response message that message receiver is sent, and from
Test serial number, and the sequence of message number acquired by statistics are obtained in each response message, judge the response message
Whether all receive.
The scheme provided according to embodiments of the present invention is wanted to be compared to RFC7769 in such a way that Batch sending etc. is to be answered
The single message of description is sent, wait it is to be answered after retransmit the mode of next message, static PW MAC can be significantly improved
Withdraw message interaction efficiency shortens the time of network cutout to improve the deletion rate of MAC Address.
Detailed description of the invention
Fig. 1 is a kind of method flow diagram of static state PW MAC withdraw message interaction provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic device of static state PW MAC withdraw message interaction provided in an embodiment of the present invention；
Fig. 3 is the message format that static state PW provided in an embodiment of the present invention sends MAC withdraw；
Fig. 4 is the interaction flow schematic diagram of the message of RFC7769 description provided in an embodiment of the present invention；
Fig. 5 is the interaction diagrams of the message provided in an embodiment of the present invention when receiving whole response messages；
Fig. 6 is the re-transmission flow chart provided in an embodiment of the present invention when not receiving whole response messages.
Specific embodiment
Below in conjunction with attached drawing to a preferred embodiment of the present invention will be described in detail, it should be understood that described below is excellent
Select embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 1 is a kind of method flow diagram of static state PW MAC withdraw message interaction provided in an embodiment of the present invention, such as
Shown in Fig. 1, comprising:
Step S101: message source is reported to the N number of MAC withdraw containing MAC list of message receiver Batch sending
Text, and after the Batch sending, wait response of the message receiver to transmitted N number of MAC withdraw message；
Step S102: message receiver is described each of to be received after receiving N number of MAC withdraw message
MAC withdraw message generates response message, and is sent to the message source；
Step S103: message source is according to the response message integrality received, it is determined whether retransmit it is described it is N number of containing
The MAC withdraw message of MAC list；
Wherein, the PW refers to pseudo-wire；The MAC refers to medium access control；The N refers to positive integer.
Wherein, the MAC withdraw message includes test serial number；Wherein, the message source is to message receiver
Test serial number in the N number of MAC withdraw message of Batch sending is incremented by successively according to transmission sequence.
Wherein, the message receiver is after receiving N number of MAC withdraw message, described each of to be received
It includes: message receiver after receiving current MAC withdraw message that MAC withdraw message, which generates response message, is extracted
Test serial number in the current MAC withdraw message；Message receiver passes through the current MAC withdraw message
In test serial number be compared with the test serial number in upper MAC withdraw message, it is determined whether need generate and institute
State the current corresponding response message of MAC withdraw message；If test serial number in the current MAC withdraw message with
The comparison result of test serial number in upper MAC withdraw message be it is correct, then message receiver determine need generate with
The current corresponding response message of MAC withdraw message；If the test serial number in the current MAC withdraw message
Comparison result with the test serial number in upper MAC withdraw message is mistake, then message receiver determination does not need to give birth to
At response message corresponding with the current MAC withdraw message.
Wherein, the message source is according to the response message integrality received, it is determined whether retransmit it is described it is N number of containing
The MAC withdraw message of MAC list includes: that message source passes through N number of MAC withdraw message pair to Batch sending
The response message answered is detected, and judges whether the response message has all received；If judging, the response message is not complete
Portion receives, then message source, which determines, retransmits N number of MAC withdraw message containing MAC list；If described in judgement
Response message all receives, then message source, which determines, does not retransmit N number of MAC withdraw report containing MAC list
Text.Specifically, the message source by the corresponding response message of N number of MAC withdraw message to Batch sending into
Row detection, judging whether the response message has all received includes: that message source successively receives message receiver transmission
Each response message, and obtain test serial number from each response message；Message source passes through acquired in statistics
Sequence of message number, judges whether the response message has all received.
Fig. 2 is a kind of schematic device of static state PW MAC withdraw message interaction provided in an embodiment of the present invention, such as
Shown in Fig. 2, comprising: message source 201, for the N number of MAC containing MAC list of message receiver Batch sending
Withdraw message, and after the Batch sending, wait message receiver to report transmitted N number of MAC withdraw
The response of text, and according to the response message integrality received, it is determined whether retransmit N number of MAC containing MAC list
Withdraw message；Message receiver 202, for after receiving N number of MAC withdraw message, each of to be received
The MAC withdraw message generates response message, and is sent to the message source；Wherein, the PW refers to pseudo-wire；
The MAC refers to medium access control；The N refers to positive integer.
Wherein, the MAC withdraw message includes test serial number；Wherein, the message source is to message receiver
Test serial number in the N number of MAC withdraw message of Batch sending is incremented by successively according to transmission sequence.
Wherein, the message receiver 202 includes: extraction unit, for after receiving current MAC withdraw message,
Extract the test serial number in the current MAC withdraw message；Determination unit, for passing through the current MAC
Test serial number in withdraw message is compared with the test serial number in upper MAC withdraw message, it is determined whether
Need to generate response message corresponding with the current MAC withdraw message；Response message processing unit, for when described
The currently knot compared with the test serial number in upper MAC withdraw message of the test serial number in MAC withdraw message
Fruit is correct, it is determined that needs to generate response message corresponding with the current MAC withdraw message, and work as described in
The comparison result of the test serial number in test serial number and upper MAC withdraw message in preceding MAC withdraw message
For mistake, it is determined that do not need to generate response message corresponding with the current MAC withdraw message.
Wherein, the message source 201 includes: judging unit, for passing through N number of MAC to Batch sending
The corresponding response message of withdraw message is detected, and judges whether the response message has all received；Retransmission process
Unit judges that the response message does not receive all for working as, it is determined that retransmit N number of MAC containing MAC list
Withdraw message, and work as and judge that the response message all receives, it is determined that it does not retransmit described N number of containing MAC column
The MAC withdraw message of table.Specifically, the judging unit is specifically used for successively receiving the every of message receiver transmission
A response message, and test serial number is obtained from each response message, and the sequence of message number acquired by statistics, sentence
Whether the response message that breaks all has received.
The embodiment of the invention also provides the realization systems of static PW MAC withdraw message interaction, comprising:
MAC withdraw message sending module: MAC withdraw message is sent, is mentioned by the way of Batch sending
Hand over efficiency, be not to wait for response, disposably send the MAC withdraw message of N number of band MAC list, then etc. it is to be answered.
MAC withdraw message receiving processing module with MAC list: when receiving MAC list message, deleting MAC,
Respond response message.
MAC withdraw response message receiving processing module: it receives MAC withdraw response message and handles, when N number of
When the corresponding response message of MAC withdraw message with MAC list all receives, then trigger the N number of band MAC list of next group
MAC withdraw message.
MAC withdraw message retransmission module: when for being more than that certain time does not receive response message, MAC is retransmitted
Withdraw message.
With reference to the accompanying drawing and specific embodiment is described in further detail the method for the present invention.
Fig. 3 shows the interaction flow of message of the present invention when receiving whole response messages, and method includes as follows
Step:
Step 1, by the MAC Address of transmission in need arrange queue according to 40 one group.
Step 2, the processing of MAC withdraw message of the transmitting terminal Batch sending with MAC list.Specific steps include:
Preceding N group MAC in queue is taken out, the MAC withdraw message of structural belt MAC list is successively sent respectively, each
Sequence in message is incremented by successively, and the Sequence for recording first message is Sequence-x；
Wait the response of opposite equip.；
Step 3, receiving end receives the processing of the MAC withdraw message with MAC list.Specific steps include:
Receiving end receives first MAC withdraw message with MAC list, compares Sequence, deletes MAC, hair
Send response；
Receiving end is subsequently received second to MAC withdraw message of the n-th with MAC list, compares Sequence, deletes
Except MAC, response is sent；
Step 4, transmitting terminal receives the processing of response message.Specific steps include:
Transmitting terminal receives a response message, takes out Sequence field therein, records；
Judgement includes all Sequence's between Sequence-x to the Sequence-x+N recorded in step 2
Whether response message has all received, if all had received, repeats since step 2；If do not received all,
It continues waiting for.
Fig. 4 shows re-transmission process of the present invention when not receiving whole response messages, and method includes the following steps:
Step 1, by the MAC Address of transmission in need arrange queue according to 40 one group.
Step 2, the processing of MAC withdraw message of the transmitting terminal Batch sending with MAC list.Specific steps include:
Preceding N group MAC in queue is taken out, the MAC withdraw message of structural belt MAC list is successively sent respectively, each
Sequence in message is incremented by successively, and the Sequence for recording first message is Sequence-x；
Wait the response of opposite equip.；
Step 3, it if transmitting terminal receives response message, needs to handle.Specific steps include:
Transmitting terminal receives a response message, takes out Sequence field therein, records；
Judgement includes all Sequence's between Sequence-x to the Sequence-x+N recorded in step 2
Whether response message has all received, if all had received, repeats since step 2；If do not received all,
It continues waiting for.
Step 4, after transmitting terminal waits 1 second, whole response messages is not still received.
The N group MAC that will be taken out before, then retransmit one time, notice that the Sequence in first message needs to change
For Sequence-x+N, behind message Sequence it is incremented by successively, and updating Sequence-x is Sequence-x+N.
Step 5, after again waiting for 1 second, whole response messages is not still received, again according to step 4 processing.
Step 6, after again waiting for 1 second, still do not receive it is whole should message.
Again 2 processing are gone to step, but need the Sequence that first sends message being incremented by N again.
The scheme provided according to embodiments of the present invention, the MAC withdraw message by Batch sending with MAC list,
Message interaction efficiency is improved, to improve the deletion rate of MAC Address, shortens the time of network cutout.The present invention is pair
The process flow of receiving end is not made an amendment in the optimization of the process flow of transmitting terminal described in RFC7769, have no effect on and
According to the docking of the RFC7769 other equipment realized in network.
Although describing the invention in detail above, but the invention is not restricted to this, those skilled in the art of the present technique
It can be carry out various modifications with principle according to the present invention.Therefore, all to be modified according to made by the principle of the invention, all it should be understood as
Fall into protection scope of the present invention.
Claims (10)
1. a kind of method of static state PW MAC withdraw message interaction, comprising:
Message source is to the N number of MAC withdraw message containing MAC list of message receiver Batch sending, and at described batch
After amount is sent, response of the message receiver to transmitted N number of MAC withdraw message is waited；
Message receiver is after receiving N number of MAC withdraw message, each of to be received the MAC withdraw
Message generates response message, and is sent to the message source；
Message source is according to the response message integrality received, it is determined whether retransmits N number of MAC containing MAC list
Withdraw message；
Wherein, the PW refers to pseudo-wire；The MAC refers to medium access control；The N refers to positive integer.
2. according to the method described in claim 1, the MAC withdraw message includes test serial number；Wherein, the message
Test serial number of the transmitting terminal into the N number of MAC withdraw message of message receiver Batch sending is successively passed according to transmission sequence
Increase.
3. according to the method described in claim 2, the message receiver is after receiving N number of MAC withdraw message,
Response message, which is generated, each of to be received the MAC withdraw message includes:
Message receiver extracts the report in the current MAC withdraw message after receiving current MAC withdraw message
Literary serial number；
Message receiver by by the current MAC withdraw message test serial number and a upper MAC withdraw
Test serial number in message is compared, it is determined whether needs to generate response corresponding with the current MAC withdraw message
Message；
If the message sequence in test serial number and upper MAC withdraw message in the current MAC withdraw message
Number comparison result be it is correct, then message receiver is determined to need to generate and corresponding with the current MAC withdraw message be answered
Answer message；
If the message sequence in test serial number and upper MAC withdraw message in the current MAC withdraw message
Number comparison result be mistake, then message receiver determine do not need generate it is corresponding with the current MAC withdraw message
Response message.
4. according to the method described in claim 3, the message source is according to the response message integrality received, it is determined whether
Retransmitting N number of MAC withdraw message containing MAC list includes:
Message source is detected by the corresponding response message of N number of MAC withdraw message to Batch sending, judgement
Whether the response message has all received；
If judging, the response message is not received all, message source determine retransmit it is described N number of containing MAC list
MAC withdraw message；
If judging, the response message all receives, message source determine do not retransmit it is described N number of containing MAC list
MAC withdraw message.
5. according to the method described in claim 4, the message source is reported by N number of MAC withdraw to Batch sending
The corresponding response message of text is detected, and judging whether the response message all receives includes:
Message source successively receives each response message of message receiver transmission, and obtains from each response message
Test serial number；
The message source sequence of message number acquired by statistics, judges whether the response message has all received.
6. a kind of device of static state PW MAC withdraw message interaction, comprising:
Message source, for the N number of MAC withdraw message containing MAC list of message receiver Batch sending, and
After the Batch sending, response of the message receiver to transmitted N number of MAC withdraw message is waited, and according to receipts
The response message integrality arrived, it is determined whether retransmit N number of MAC withdraw message containing MAC list；
Message receiver, for after receiving N number of MAC withdraw message, each of to be received the MAC
Withdraw message generates response message, and is sent to the message source；
Wherein, the PW refers to pseudo-wire；The MAC refers to medium access control；The N refers to positive integer.
7. device according to claim 6, the MAC withdraw message includes test serial number；Wherein, the message
Test serial number of the transmitting terminal into the N number of MAC withdraw message of message receiver Batch sending is successively passed according to transmission sequence
Increase.
8. device according to claim 7, the message receiver include:
Extraction unit, for extracting in the current MAC withdraw message after receiving current MAC withdraw message
Test serial number；
Determination unit, for by by the current MAC withdraw message test serial number and a upper MAC
Test serial number in withdraw message is compared, it is determined whether needs to generate and the current MAC withdraw message phase
The response message answered；
Response message processing unit, for when the test serial number and a upper MAC in the current MAC withdraw message
The comparison result of test serial number in withdraw message is correct, it is determined that needs to generate and the current MAC withdraw
The corresponding response message of message, and when the test serial number and a upper MAC in the current MAC withdraw message
The comparison result of test serial number in withdraw message is mistake, it is determined that does not need to generate and the current MAC
The corresponding response message of withdraw message.
9. device according to claim 8, the message source include:
Judging unit is sentenced for being detected by the corresponding response message of N number of MAC withdraw message to Batch sending
Whether the response message that breaks all has received；
Retransmission process unit, for when judge that the response message does not receive all, it is determined that re-transmission is described N number of to contain MAC
The MAC withdraw message of list, and work as and judge that the response message all receives, it is determined that it does not retransmit described N number of
MAC withdraw message containing MAC list.
10. device according to claim 9, the judging unit is specifically used for successively receiving the every of message receiver transmission
A response message, and test serial number is obtained from each response message, and the sequence of message number acquired by statistics, sentence
Whether the response message that breaks all has received.
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