CN101022411A - Multi-link binding protocol message zone receiving method - Google Patents
Multi-link binding protocol message zone receiving method Download PDFInfo
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- CN101022411A CN101022411A CNA2007100642268A CN200710064226A CN101022411A CN 101022411 A CN101022411 A CN 101022411A CN A2007100642268 A CNA2007100642268 A CN A2007100642268A CN 200710064226 A CN200710064226 A CN 200710064226A CN 101022411 A CN101022411 A CN 101022411A
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- message fragment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/34—Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/43—Assembling or disassembling of packets, e.g. segmentation and reassembly [SAR]
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Abstract
A zoned-receiving method of multilink bound protocol message includes setting pointer and sequence number window, receiving message zone and judging whether sequence number of received message zone is continued with pointer or not, judging whether sequence number of message zone is in sequence number window or not if it is not and revising pointer to carry out jump-off track if it is judged that sequence number of message zone is out off sequence number window.
Description
Technical field
The present invention is about the communication technology, especially in regard to a kind of multi-link binding protocol message zone receiving method.
Background technology
Multi-link binding protocol (MP, Multilink PPP) be with the mode of a plurality of physical paths by the agreement binding, according to agreement RFC1990, add corresponding sequence number, a plurality of physical channels as a logical channel, are provided than the bigger bandwidth of single physical passage to satisfy the user bandwidth demand.In the realization of multi-link binding protocol, the message fragment receiving terminal sorts to the message fragment that receives by detecting sequence number, uploads message fragment to the network layer of receiving terminal according to the sequencing that sends message fragment and handles to guarantee logical channel.
Multi-link binding protocol inside provides a kind of mechanism of order-preserving, and just when link establishment, the sequence number that transmitting terminal sends must be since 0.Receiving terminal is at consensus sequence of local maintenance number, and the consensus sequence number sequence number with the message fragment that receives is compared; If the consensus sequence of receiving terminal this locality number is inequality with the sequence number that receives, then receiving terminal wait for and transmitting terminal between all message fragments upload message fragment again to network layer after all receiving.
As shown in Figure 1, transmitting terminal sends message fragment 0-5, and wherein the message fragment sequence number is that 3 message fragment is lost.Before new message fragment arrives receiving terminal, receiving terminal will wait fragmented 3 to arrive always.
Lose message fragment for avoiding receiving terminal to cross waiting as long for, prior art provides following two kinds of solutions:
One, by transmitting terminal timed sending IDLE message fragment to receiving terminal, make receiving terminal judge that fast unreceived message fragment loses and upload other message fragment of reception.
Two, the timer by receiving terminal is provided with the time of waiting for the reception message fragment, if message fragment arrives the time of receiving terminal and surpasses the time that the receiving terminal timer is set, then receiving terminal judges that this message fragment loses, and receiving terminal is uploaded other message fragment of reception.
But the shortcoming of above-mentioned two kinds of solutions is: employing method one, and the IDLE message fragment of transmitting terminal timed sending can consume the part bandwidth; And the employing method two, in case the sequence number generation saltus step of the message fragment that receiving terminal receives, the speed that receiving terminal is lost by timer judgement message fragment is too slow, and the link-recovery time is long, and the user need wait as long for.
Summary of the invention
Be to solve the shortcoming of prior art, the purpose of the embodiment of the invention is, a kind of multi-link binding protocol message zone receiving method is provided, and reduces the dependence of timing IDLE message fragment and shortens time of the business recovery of receiving terminal.
For achieving the above object, the invention provides: a kind of multi-link binding protocol message zone receiving method comprises: pointer and window of sequence numbers are set; Receive message fragment, and judge whether the sequence number of the message fragment that receives is continuous with pointer; If judged result is that the sequence number and the pointer of message fragment is discontinuous, judge then whether the sequence number of message fragment is arranged in window of sequence numbers; If judged result be the serial number bit of message fragment outside window of sequence numbers, revise pointer and carry out the sequence number saltus step and follow the tracks of.
Window of sequence numbers has upper limit position and lower position; Distance between pointer and upper limit position equals the distance between pointer and lower position.
Judge whether the sequence number of message fragment is arranged in the step of window of sequence numbers, if judged result is that the serial number bit of message fragment is in window of sequence numbers the time, further comprising the steps of: the sequence number of judging message fragment is between upper limit position and the pointer or between lower position and pointer, if judged result be the message fragment serial number bit between the upper limit position and pointer of window of sequence numbers, according to sequence number stored messages burst to buffer; If judged result is the serial number bit of message fragment between the lower position of window of sequence numbers and pointer the time, the dropping packets burst.
The sequence number of the message fragment that judge to receive whether with the continuous step of pointer in, judged result is the sequence number and the pointer consecutive hours of message fragment, and is further comprising the steps of: according to message fragment sequence number stored messages burst to buffer; Pointer value is added one; Inquire about continuous message fragment and continuous message fragment is reassembled as message; Upload message; Receiving terminal is revised the maximum that pointer Rpt points to current continuous reception message fragment sequence number.
Pointer is used to preserve the maximum of the message fragment sequence number of continuous reception.
The modification pointer carries out sequence number saltus step tracking and is meant, gives pointer with the sequence number assignment of message fragment.
Be meant according to sequence number stored messages burst to buffer: the sequence number and the buffer depth of message fragment are asked mould, calculate the memory address of message fragment in buffer.
Buffer depth is meant the number of the buffer that is used for temporary message fragment.
Distance between upper limit position and pointer, and the distance between lower position and pointer is sequence number space length half.
The beneficial effect of the embodiment of the invention is, can tolerate to a certain degree (in window of sequence numbers, as 1/2 sequence number space, the sudden change of sequence number), the present invention can also can judge to follow the trail of the sequence number saltus step fast to discontinuous message fragment, thereby fast quick-recovery business has improved the robustness of system.Compared with prior art, the message fragment sequence number of transmitting terminal transmission needn't be necessarily from sequence number 0.
Description of drawings
Figure 1 shows that existing multi-link binding protocol message zone receives schematic diagram;
Figure 2 shows that the continuous signal of sequence number of pointer and message fragment in the embodiment of the invention;
Figure 3 shows that multilink bundle of the present invention receives the flow chart that message fragment receives embodiment;
Fig. 4-the Figure 6 shows that view of message fragment serial number bit between lower position and pointer in the window of sequence numbers;
Fig. 7 A-Figure 9 shows that the view of the message fragment sequence number that window of sequence numbers is outer.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is described in further details below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
As shown in Figure 2, Rpt and window of sequence numbers are set in receiving terminal.Pointer Rpt is used for preserving the receiving terminal maximum of the sequence number of the message fragment of reception continuously, be all message fragments (comprising message fragment and Rpt currency all message fragments before that the Rpt currency points to) that receiving terminal has received continuously, thereby pointer Rpt sensing is a maximum of correctly organizing the bag tail or a continuous message fragment sequence number of not recombinating of bag.And window of sequence numbers is used for representing new message fragment that arrives and the relative position at buffer of pointer Rpt.Window of sequence numbers comprises a upper limit position Hpt and a lower position Lpt.
According to the flow chart of multi-link binding protocol message zone receiving method of the present invention shown in Figure 3, briefly introduce implementation process of the present invention.
Step 302, whether sequence number and the pointer Rpt of receiving terminal comparison message fragment S ' be continuous; If enter step 309; If not, enter step 303;
The sequence number saltus step takes place on the link of receiving terminal judgement message fragment S ' in step 304, and it is temporary that receiving terminal is sent it into buffer according to the sequence number of message fragment S ', withdraws from processing, and receiving terminal continues to receive next message fragment;
Step 307, receiving terminal abandon this message fragment S ';
In above-mentioned steps 304, step 308, step 309, receiving terminal with the sequence number of message fragment S ' and buffer depth delivery after the value of obtaining be temporarily stored in address in the array of buffer for message fragment, with calculating formulate: the address of buffer array=sequence number % (delivery) buffer length.And buffer depth is exactly the number that the finger receiving end is used for the buffer of buffer memory message fragment.Receiving terminal is according to the memory address buffer memory message fragment that calculates.
Below in conjunction with accompanying drawing 4-9, describe above-mentioned implementation process of the present invention more meticulously in detail:
After receiving terminal was received the message this film of transmitting terminal transmission, receiving terminal extracted the sequence number of message fragment, and receiving terminal judges whether the sequence number of this message fragment is continuous with pointer Rpt.As shown in Figure 2, the sequence number S ' of this message fragment is continuous with pointer, when being S '=Rpt+1, then receiving terminal is given pointer Rpt with this sequence of message assignment, and expression sequence of message number has been received end reception continuously for the message fragment of S ' and message fragment before thereof.The sequence number and the pointer of the message fragment that receives when receiving terminal are continuous, then behind the temporary message fragment that finishes of buffer, receiving terminal carries out sweep forward and sweep backward simultaneously according to pointer Rpt, to seek the packet header and the bag tail of message fragment, if receiving terminal finds the message fragment of continuous whole, receiving terminal is reassembled as the continuous message fragment in the buffer and is uploaded to network layer after message is uploaded and handles, and the message fragment sequence number assignment of the bag tail that will find is simultaneously given pointer Rpt.This be because, as shown in Figure 3, receiving terminal receive with the discontinuous message fragment S ' of pointer Rpt after, if this message fragment S ' is in window of sequence numbers, receiving terminal can not revised pointer Rpt, but after receiving terminal searched continuous message fragment and is reassembled as message, the memory location of then containing the message fragment that wraps tail just should be the peaked memory location of the continuous message fragment sequence number that receives of receiving terminal of pointer Rpt sensing.
If the sequence number and the pointer Rpt of the message fragment that receiving terminal receives are discontinuous, shown in Fig. 4-6, the serial number bit of this message fragment S ' is between Rpt and lower position Lpt, and receiving terminal abandons this message fragment.This is because what pointer Rpt preserved is continuously the maximum of the message fragment sequence number of reception.If the sequence number of the message fragment that receiving terminal receives is before Rpt, just represent that this message fragment should be to think the message fragment that has abandoned in the past in the processing, therefore must abandon, to guarantee can recombinating in order and upload of message fragment temporary in the buffer.
It is emphasized that at this, in the art, the address space of the buffer of receiving terminal is the space of a circulation normally, thereby the new burst that arrives and the relative position between Rpt change, and the sequence number of the message fragment of receiving terminal reception comprised following three class situations before Rpt:
(1), pointer Rpt is in the centre of the sequence number address space of buffer, as shown in Figure 4, the pass of window of sequence numbers and pointer Rpt is: lower position Lpt＜pointer Rpt＜upper limit position Hpt; Then the sequence number S ' of message fragment is Lpt＜S '＜Rpt with the pass of window of sequence numbers and pointer Rpt.
(2), pointer Rpt is near the top, sequence number address of buffer, as shown in Figure 5, the pass of window of sequence numbers and pointer Rpt is: upper limit position Hpt＜lower position Lpt＜pointer Rpt; Then the sequence number S ' of message fragment is Lpt＜S '＜Rpt with the pass of window of sequence numbers and pointer Rpt.
(3), pointer Rpt is near bottom, the sequence number address of buffer, as shown in Figure 6, the pass of window of sequence numbers and pointer Rpt is: pointer Rpt＜upper limit position Hpt＜lower position Lpt; Then the sequence number S ' of message fragment with the relation of window of sequence numbers and pointer Rpt can be: Rpt＜S ' or Rpt＞S ' (be Rpt＜S ' shown in Fig. 6, and do not show Rpt＞S ').
If the sequence number S ' of the message fragment that receiving terminal receives and pointer Rpt are discontinuous, and the sequence number S ' of this message fragment is positioned at outside the window of sequence numbers.Because the address space of buffer is the cyclic space, therefore, the relation of message fragment sequence number and Rpt can be with reference to Fig. 7 A, Fig. 7 B, Fig. 8 and several situations shown in Figure 9:
The sequence number S ' of the message fragment that receives when receiving terminal is discontinuous and when being positioned at outside the window of sequence numbers with pointer Rpt, and then the message fragment outside window of sequence numbers also comprises following three class situations:
(1), pointer Rpt is in the centre of the sequence number address space of buffer, shown in Fig. 7 A, 7B, the pass of window of sequence numbers and pointer Rpt is: lower position Lpt＜pointer Rpt＜upper limit position Hpt; And the pass of the sequence number S ' of message fragment and window of sequence numbers is: S '＜Lpt (asking for an interview Fig. 7 A) or Hpt＜S ' (asking for an interview Fig. 7 B).
(2), pointer Rpt is near the top, sequence number address of buffer, as shown in Figure 8, the pass of window of sequence numbers and pointer Rpt is: upper limit position Hpt＜lower position Lpt＜pointer Rpt; Then the sequence number S ' of message fragment is Hpt＜S '＜Lpt with the pass of window of sequence numbers.
(3), pointer Rpt is near bottom, the sequence number address of buffer, as shown in Figure 9, the pass of window of sequence numbers and pointer Rpt is: pointer Rpt＜upper limit position Hpt＜lower position Lpt; Then the sequence number S ' of message fragment is Hpt＜S '＜Lpt with the pass of window of sequence numbers.
When the serial number bit of message fragment is outside window of sequence numbers among Fig. 7 A, Fig. 7 B, Fig. 8, Fig. 9, receiving terminal is judged as sequence number generation saltus step.This is because to those skilled in the art, the number of the burst of a message can not surpass half of sequence number space length.In the present embodiment, if serial number bit is outside window of sequence numbers the time, just expression, the sequence number S ' of the message fragment of current reception and the difference of pointer Rpt, promptly the difference between the sequence number of the message fragment of S ' and current continuous reception has surpassed the sequence number space length of half.And common network design can not cause the delay difference of the message fragment between the link to reach such time difference, saltus step has taken place in the transmission of having reason to believe the message fragment on the link, i.e. message fragment between the message fragment of current continuous reception and the message fragment of just having received is lost; Perhaps message fragment can not be recombinated because of certain that reason, for example: the user selects wherein one the tunnel to carry out local loopback in being tied to several the links of MP, the sequence number of the message fragment on the sequence number of the message fragment on the loopback link and other several the links is obviously asynchronous, and message fragment can not be recombinated; If the loopback link is cancelled, and the local reception end is followed the tracks of and have been gone up faulty sequence number, can cause normally tracking sequence number.
This it is emphasized that above-mentioned with upper limit position Hpt and pointer between the distance of Rpt, and the distance between pointer Rpt and lower position Lpt, half that all is set to sequence number space length is better embodiment of the present invention.Because MP agreement regulation transmitting terminal must before the message fragment of burst, add continuous long sequence number (0～0xffffff) with lacking sequence number (0～0xfff) is exactly sequence number space.Sequence number space is corresponding with the Smask of circulation storage in the buffer.For a person skilled in the art, whole burst numbers of message can not reach sequence number space half.Make utilize sequence number space length that window of sequence numbers is set to carry out the sequence number saltus step the most accurate.To those skilled in the art, it is not sole mode that the foregoing description discloses the window of sequence numbers set-up mode, those skilled in the art can be according to the present invention prompt mode, the distance between the width of window of sequence numbers and pointer and upper limit position, lower position is set.
Wherein, stipulate according to the MP agreement: the structure of long sequence number and short sequence number is as follows:
The long sequence number structure of table one
| 0xff | 0x03 |
| 0x00 | 0x3d |
| B|E|0|0|0|0|0|0| | Sequence |
| Sequence | Sequence |
The short sequential structure of table two
| 0xff | 0x03 |
| 0x00 | 0x3d |
| B|E|0|0|Sequence | Sequence |
From top structure as can be seen, as long as know the initial address of buffer memory, the length sequence number is provided with, and just can take out the sequence number of message fragment, and this content is same as the prior art, thereby is not described in detail herein.
The present invention has also solved by the receiving terminal timer and has judged that message fragment is lost or reach and judge that message fragment loses by sending IDLE (only containing sequence number) message fragment, and causes problems such as link waits as long for, the link-recovery time long, user data is lost easily in a large number.
Beneficial effect of the present invention is, can tolerate to a certain degree (as the sudden change of the sequence number in 1/2 sequence number space in the window of sequence numbers), the present invention can also can judge to follow the trail of the sequence number saltus step fast to discontinuous message fragment, thereby fast quick-recovery business has improved the robustness of system.Compared with prior art, when transmitting terminal began to send message fragment, the homing sequence of message fragment number needn't be necessarily since 0.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a multi-link binding protocol message zone receiving method is characterized in that, comprising:
Pointer and window of sequence numbers are set;
Receive message fragment, and judge whether the sequence number of the message fragment that receives is continuous with pointer;
If judged result is that the sequence number and the pointer of message fragment is discontinuous, judge then whether the sequence number of message fragment is arranged in window of sequence numbers;
If judged result be the serial number bit of message fragment outside window of sequence numbers, revise pointer and carry out the sequence number saltus step and follow the tracks of.
2. method according to claim 1 is characterized in that window of sequence numbers has upper limit position and lower position; Distance between pointer and upper limit position equals the distance between pointer and lower position.
3. method according to claim 2 is characterized in that, judges whether the sequence number of message fragment is arranged in the step of window of sequence numbers, and is if judged result is the serial number bit of message fragment in window of sequence numbers the time, further comprising the steps of:
The sequence number of judging message fragment is between upper limit position and the pointer or between lower position and pointer;
If judged result be the message fragment serial number bit between the upper limit position and pointer of window of sequence numbers, according to sequence number stored messages burst to buffer;
If judged result is the serial number bit of message fragment between the lower position of window of sequence numbers and pointer the time, the dropping packets burst.
4. method according to claim 1 is characterized in that, the sequence number of the message fragment that judge to receive whether with the continuous step of pointer in, if judged result is the sequence number and the pointer consecutive hours of message fragment, further comprising the steps of:
According to message fragment sequence number stored messages burst to buffer;
Pointer value is added one;
Inquire about continuous message fragment and continuous message fragment is reassembled as message;
Upload message;
Revise the maximum of the current continuous reception message fragment sequence number of pointed.
5. method according to claim 1 is characterized in that, pointer is used to preserve the maximum of the message fragment sequence number of continuous reception.
6. method according to claim 1 is characterized in that, the modification pointer carries out sequence number saltus step tracking and is meant, gives pointer with the sequence number assignment of message fragment.
7. according to claim 4 or 6 described methods, it is characterized in that, be meant: the sequence number and the buffer depth of message fragment are asked mould, calculate the memory address of message fragment in buffer according to sequence number stored messages burst to buffer.
8. method according to claim 7 is characterized in that, buffer depth is meant the number of the buffer that is used for temporary message fragment.
9. method according to claim 8 is characterized in that, the distance between upper limit position and pointer, and the distance between lower position and pointer is sequence number space length half.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100642268A CN100531147C (en) | 2007-03-07 | 2007-03-07 | Multi-link binding protocol message zone receiving method |
| PCT/CN2008/070423 WO2008106893A1 (en) | 2007-03-07 | 2008-03-06 | Method for receiving message fragment of multilink ppp and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100642268A CN100531147C (en) | 2007-03-07 | 2007-03-07 | Multi-link binding protocol message zone receiving method |
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| CN101022411A true CN101022411A (en) | 2007-08-22 |
| CN100531147C CN100531147C (en) | 2009-08-19 |
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| CNB2007100642268A Expired - Fee Related CN100531147C (en) | 2007-03-07 | 2007-03-07 | Multi-link binding protocol message zone receiving method |
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| WO (1) | WO2008106893A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008106893A1 (en) * | 2007-03-07 | 2008-09-12 | Huawei Technologies Co., Ltd. | Method for receiving message fragment of multilink ppp and device thereof |
| CN101483637A (en) * | 2008-01-11 | 2009-07-15 | 上海博达数据通信有限公司 | Method for lowering buffered packet number in Multilink PPP waiting queue |
| WO2010072122A1 (en) * | 2008-12-25 | 2010-07-01 | 华为技术有限公司 | Method, port and system for transmitting messages |
| CN101795236A (en) * | 2010-03-31 | 2010-08-04 | 成都市华为赛门铁克科技有限公司 | Report sequence preservation method and device |
| CN101917472A (en) * | 2010-08-12 | 2010-12-15 | 北京星网锐捷网络技术有限公司 | Method, device and equipment for recombining multi-link messages |
| CN102204183A (en) * | 2011-05-09 | 2011-09-28 | 华为技术有限公司 | Message order-preserving processing method, order-preserving coprocessor and network equipment |
| CN102685000A (en) * | 2012-04-24 | 2012-09-19 | 中兴通讯股份有限公司 | Method, device and system for realizing synchronization of serial numbers of MP (Multilink Protocol) fragments |
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| CN108667755A (en) * | 2017-03-27 | 2018-10-16 | 中兴通讯股份有限公司 | A kind of method and apparatus message fragment storage and recombinated |
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| WO2019178813A1 (en) * | 2018-03-22 | 2019-09-26 | 华为技术有限公司 | Method, device and system for handling message fragmentation |
| CN111371703A (en) * | 2018-12-25 | 2020-07-03 | 迈普通信技术股份有限公司 | Message recombination method and network equipment |
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| JP3120963B2 (en) * | 1995-12-14 | 2000-12-25 | 株式会社日立製作所 | Method for transferring messages and system for transferring messages |
| GB2399980A (en) * | 2003-03-26 | 2004-09-29 | Zarlink Semiconductor Ltd | Packet buffer management |
| KR20040102835A (en) * | 2003-05-29 | 2004-12-08 | 유티스타콤코리아 유한회사 | Method for communication of message queue in real time operating system |
| WO2006077523A1 (en) * | 2005-01-18 | 2006-07-27 | Nxp B.V. | Improved ip datagram de-encapsulation |
| CN100531147C (en) * | 2007-03-07 | 2009-08-19 | 华为技术有限公司 | Multi-link binding protocol message zone receiving method |
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| WO2014101090A1 (en) * | 2012-12-28 | 2014-07-03 | 华为技术有限公司 | Message caching method and device |
| CN108667755A (en) * | 2017-03-27 | 2018-10-16 | 中兴通讯股份有限公司 | A kind of method and apparatus message fragment storage and recombinated |
| CN109246036A (en) * | 2017-07-10 | 2019-01-18 | 深圳市中兴微电子技术有限公司 | A kind of method and apparatus handling fragment message |
| CN107612890B (en) * | 2017-08-24 | 2020-09-15 | 中国科学院信息工程研究所 | Network monitoring method and system |
| CN107612890A (en) * | 2017-08-24 | 2018-01-19 | 中国科学院信息工程研究所 | A kind of network monitoring method and system |
| CN109842856A (en) * | 2017-11-29 | 2019-06-04 | 成都鼎桥通信技术有限公司 | A kind of method and apparatus shielding uplink packet loss |
| WO2019178813A1 (en) * | 2018-03-22 | 2019-09-26 | 华为技术有限公司 | Method, device and system for handling message fragmentation |
| US11411892B2 (en) | 2018-03-22 | 2022-08-09 | Huawei Technologies Co., Ltd. | Packet fragment processing method and apparatus and system |
| CN109714135A (en) * | 2018-12-24 | 2019-05-03 | 北京威努特技术有限公司 | A kind of data pack transmission method and device |
| CN109714135B (en) * | 2018-12-24 | 2021-10-15 | 北京威努特技术有限公司 | Data packet transmission method and device |
| CN111371703A (en) * | 2018-12-25 | 2020-07-03 | 迈普通信技术股份有限公司 | Message recombination method and network equipment |
| CN112751724A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Method and device for detecting link state |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100531147C (en) | 2009-08-19 |
| WO2008106893A1 (en) | 2008-09-12 |
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