WO2016017206A1 - Dispositif de communication, procede de communication, programme et systeme de communication - Google Patents

Dispositif de communication, procede de communication, programme et systeme de communication Download PDF

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Publication number
WO2016017206A1
WO2016017206A1 PCT/JP2015/057658 JP2015057658W WO2016017206A1 WO 2016017206 A1 WO2016017206 A1 WO 2016017206A1 JP 2015057658 W JP2015057658 W JP 2015057658W WO 2016017206 A1 WO2016017206 A1 WO 2016017206A1
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WIPO (PCT)
Prior art keywords
frame
measurement frame
data frames
communication
communication device
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PCT/JP2015/057658
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English (en)
Japanese (ja)
Inventor
大介 吉岡
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日本電気株式会社
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Publication of WO2016017206A1 publication Critical patent/WO2016017206A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection

Definitions

  • the present invention relates to a communication device, a communication method, a program, and a communication system.
  • Patent Document 1 discloses a technique for performing LM (Loss Measurement) measurement defined by Ethernet OAM (Ethernet Operations, Administration, Maintenance, where Ethernet is a registered trademark) via a communication device that performs link aggregation communication.
  • Link aggregation communication is a technology in which a plurality of communication links stretched in parallel between two switches are integrated and handled logically as one communication link.
  • a communication device on the transmission side of link aggregation duplicates an LM frame for each communication link related to link aggregation, and transmits the LM frame to a communication device on the reception side. Performs LM measurement based on any one of the duplicated LM frames.
  • LM measurement can be performed for MEG (Maintenance Entity Group) including a communication device that performs link aggregation communication.
  • MEG Maintenance Entity Group
  • MIP Maintenance Intermediate Point
  • the transmission order of data frames and LM frames must not be switched. Therefore, when the receiving side communication device receives an LM frame from the first communication link and does not receive an LM frame from the second communication link, further receives a data frame from the first communication link.
  • the data frame needs to be transmitted after the LM frame.
  • the receiving side communication device needs to store the data frame received from the first communication link in the buffer until the LM frame is received from the second communication link.
  • the receiving communication device needs to transmit the data frame stored in the buffer after receiving the LM frame from the second communication link and transferring the LM frame to the transfer destination communication device. Therefore, the communication device on the receiving side.
  • a transmission delay of the data frame may occur.
  • An example of an object of the present invention is to provide a communication device, a communication method, a program, and a communication system that solve the above-described problems.
  • the communication apparatus stores a plurality of data frames and the number of data frames transmitted by the first communication apparatus from each of the plurality of communication links connected to the first communication apparatus.
  • the first communication device transmits the sum of the number of data frames stored in the duplicate measurement frame duplicated from a different measurement frame and the reception unit that receives the duplicate measurement frame duplicated from the measurement frame
  • a measurement frame generation unit that generates measurement frames to be stored as the number of data frames.
  • the communication method according to the second aspect is replicated from one measurement frame storing a plurality of data frames and the number of data frames transmitted by the communication device from each of a plurality of communication links connected to the same communication device. Receiving the copied duplicate measurement frame and storing the sum of the number of data frames stored in the duplicate measurement frame copied from the different measurement frames as the number of data frames transmitted by the communication device Generating a measurement frame.
  • a program is a measurement frame for storing a plurality of data frames and the number of data frames transmitted by the communication device from each of a plurality of communication links connecting the computer to the same communication device.
  • a reception unit that receives a duplicate measurement frame copied from the same, and the sum of the number of data frames stored in the duplicate measurement frame duplicated from a different measurement frame as the number of data frames transmitted by the communication device It functions as a measurement frame generation unit that generates a measurement frame to be stored.
  • the communication system includes a first communication device and a second communication device connected by a plurality of communication links.
  • the first communication device includes, for each data frame, an assignment unit that assigns a communication link for transmitting the data frame, and one measurement frame for storing the number of data frames to be transmitted to the second communication device.
  • a measurement frame duplicating unit that generates a duplicate measurement frame duplicated for each communication link; and a transmission unit that transmits the data frame and the duplicate measurement frame to the second communication device via the communication link.
  • the second communication device stores a plurality of data frames and the duplicate measurement frame from each of the plurality of communication links, and a duplicate measurement frame duplicated from a different measurement frame.
  • a measurement frame generation unit configured to generate a measurement frame for storing the sum of the number of data frames as the number of data frames transmitted by the first communication device.
  • a step of allocating a communication link for transmitting the data frame from a plurality of communication links, and one measurement frame for storing the number of data frames to be transmitted are provided. Generating a duplicate measurement frame duplicated for each communication link; transmitting the data frame and the duplicate measurement frame via the communication link; and a plurality of data from each of the plurality of communication links.
  • 1 is a schematic block diagram illustrating a communication system according to at least one embodiment. It is a schematic block diagram which shows the structure of MEP which concerns on at least 1 embodiment. It is a schematic block diagram which shows the structure of the OAM control part which concerns on at least 1 embodiment. It is a schematic block diagram which shows the structure of MIP which concerns on at least 1 embodiment. It is a flowchart which shows operation
  • FIG. 1 is a schematic block diagram illustrating a communication system 100 according to at least one embodiment.
  • the communication system 100 includes MEP1-1 (Maintenance End Point), MEP1-2, MIP2-1, and MIP2-2.
  • MEP1-1 and MEP1-2 are collectively referred to as MEP1.
  • MIP2-1 and MIP2-2 are collectively referred to as MIP2.
  • MEP1-1 is connected to MIP2-1.
  • MIP2-1 is connected to MEP1-1 and MIP2-2.
  • MIP2-2 is connected to MIP2-1 and MEP1-2.
  • MEP1-2 is connected to MIP2-2.
  • MIP2-1 and MIP2-2 constitute a link aggregation by a plurality of communication links.
  • the communication system 100 performs LM measurement of a data frame transmitted from the MEP 1-1 to the MEP 1-2.
  • the MEP 1-1 transmits the data frame and the LM frame to the MEP 1-2 via the MIP2-1 and MIP2-2.
  • the LM frame is an OAM frame whose operation code (OpCode) is 43 (LMM frame: Loss Measurement Message) or 45 (LMR frame: Loss Measurement Reply).
  • the LM frame is an example of a measurement frame. In the LM frame, at least the number of data frames transmitted from the MEP 1-1 to the MEP 1-2 between the transmission of the previous LM frame and the transmission of the current LM frame is stored.
  • the MEP 1-1 transmits the LMM frame every predetermined time (for example, 3.3 ms, 10 ms, 100 ms, 1 s, 1 min, 10 min).
  • MEP1-2 converts the LMM frame received from MIP2-2 into an LMR frame, and transmits the LMR frame to MEP1-1. Then, the MEP 1-1 measures the frame loss by comparing the number of data frames transmitted and received in each MEP1 and each MIP2 stored in the LMR frame.
  • FIG. 2 is a schematic block diagram showing the configuration of the MEP 1 according to at least one embodiment.
  • the MEP 1 includes a frame analysis unit 11, a frame count unit 12, a counter table 13, a frame switching unit 14, a forwarding table 15, an OAM control unit 16, and a frame output unit 17.
  • the frame analysis unit 11 determines the frame type of the input frame, and transfers the data frame to the frame count unit 12 and the OAM frame to the OAM control unit 16.
  • the frame count unit 12 counts the number of input data frames and records the counter value in the counter table 13.
  • the frame count unit 12 transfers the data frame to the frame switching unit 14.
  • the frame switching unit 14 refers to the forwarding table 15 to obtain the output port information and transfers it to the frame output unit 17.
  • the forwarding table 15 stores output port information for destination address information.
  • the OAM control unit 16 performs predetermined OAM processing according to the type of OAM frame received from the frame analysis unit 11.
  • the OAM control unit 16 refers to the counter information in the counter table 13 and performs predetermined LM processing.
  • the OAM control unit 16 transfers the OAM frame to the frame output unit 17.
  • the frame output unit 17 outputs the data frame received from the frame switching unit 14 and the OAM frame received from the OAM control unit 16 to a predetermined output port.
  • FIG. 3 is a schematic block diagram illustrating a configuration of an OAM control unit according to at least one embodiment.
  • the OAM control unit 16 includes an OAM frame analysis unit 161, an LM frame control unit 162, an OAM processing unit 163, an OAM frame transfer processing unit 164, and a forwarding table 165.
  • the OAM frame analysis unit 161 analyzes the OAM frame received from the frame analysis unit 11, and transfers the LM frame to the LM frame control unit 162 and the other frames to the OAM processing unit 163.
  • the processing of the LM frame control unit 162 differs between MEP1 (MEP1-1) on the transmission side and MEP1 (MEP1-2) on the reception side.
  • MEP1 MEP1
  • MEP1-2 MEP1
  • the LM frame control unit 162 of the MEP 1-1 When receiving the LM generation trigger from the external setting interface or the like, the LM frame control unit 162 of the MEP 1-1 generates an LMM frame, writes a transmission counter value, and transfers it to the OAM frame transfer processing unit 164. Further, when receiving the LMR frame, the LM frame control unit 162 of the MEP 1-1 terminates the LMR frame. Further, the LM frame control unit 162 of the MEP 1-1 calculates an end-to-end frame loss and a frame loss for each section from the information stored in the LMR frame, and the result is stored in an external memory or an external output interface. Output.
  • the LM frame control unit 162 of the MEP 1-2 terminates the LMM frame, generates an LMR frame using information in the LMM frame, and transfers the LMR frame to the OAM frame transfer processing unit 164.
  • the OAM frame transfer processing unit 164 obtains an output port for the OAM frame received from the LM frame control unit 162 and the OAM processing unit 163 with reference to the forwarding table 165 and transfers the output port to the frame output unit 17.
  • the OAM processing unit 163 receives an OAM frame other than the LM frame from the OAM frame analysis unit 161, the OAM processing unit 163 performs predetermined OAM processing and transfers the OAM frame transfer processing unit 164.
  • the MEP 1 includes the LM frame control unit 162 and the OAM processing unit 163 as separate blocks, but is not limited thereto.
  • the LM frame control unit 162 may be included in the OAM processing unit 163.
  • the forwarding table 165 stores output port information for destination address information of the OAM frame.
  • FIG. 4 is a schematic block diagram showing the configuration of the MIP 2 according to at least one embodiment.
  • the MIP 2 includes a frame analysis unit 20, a frame count unit 21, a counter table 22, a frame switching unit 23, a forwarding table 24, an OAM-LAG control unit 25 (LAG: Link Aggregation Group), a LAG function unit 26, and a frame transfer control unit 27.
  • the frame buffer 28 and the LM frame table 29 are provided.
  • the frame analysis unit 20, the frame count unit 21, the counter table 22, the frame switching unit 23, and the forwarding table 24 are the same as the frame analysis unit 11, the frame count unit 12, the counter table 13, the frame switching unit 14, and the forwarding table 15, respectively. Perform the action.
  • the processing of the OAM-LAG control unit 25 differs between MIP2 (MIP2-1) on the transmission side and MIP2 (MIP2-2) on the reception side.
  • MIP2-1 OAM-LAG control unit 25 Upon receiving the LMM frame, the MIP2-1 OAM-LAG control unit 25 writes the transmission counter value in the LMM frame, duplicates the LMM frame by the number of communication links, and outputs the duplicate LMM frame to the LAG function unit 26. To do.
  • the duplicate LMM frame is an example of a duplicate measurement frame.
  • the OAM-LAG control unit 25 of the MIP2-1 is an example of a measurement frame duplicating unit.
  • the OAM-LAG control unit 25 of the MIP2-2 generates one LMM frame from a plurality of duplicate LMM frames from a plurality of communication links, and transfers it to the MEP1-2.
  • the OAM-LAG control unit 25 of MEP1-2 deletes duplicated LM frames that are duplicated from the same LM frame as the duplicated LM frame that has already been received.
  • the OAM-LAG control unit 25 of the MIP2-2 is an example of a measurement frame generation unit, a transfer unit, and a duplicate frame deletion unit.
  • the LAG function unit 26 implements link aggregation with the opposing MIP 2 using a plurality of ports. Specifically, the data frame is assigned to a plurality of communication links and transferred to the opposite MIP2.
  • the LAG function unit 26 of the MIP2-1 is an example of an allocation unit and a transmission unit.
  • the LAG function unit 26 of the MIP2-2 is an example of a receiving unit.
  • the frame transfer control unit 27 refers to the LM frame table 29 and records data frames in the frame buffer 28 according to the number of LM frames received by the link aggregation link.
  • the LM frame table 29 stores identification information of a communication link from which MIP2 has received an LM frame.
  • the OAM-LAG function unit 25 of the MIP2-2 generates an LM frame that stores the sum of the number of data frames stored in the duplicated LM frame duplicated from different LM frames as the number of data frames.
  • the LM frame is transmitted to MEP1-2.
  • the communication system 100 reduces the transmission delay of the data frame in the communication system 100 having the communication related to link aggregation.
  • the MIP 2-1 according to the first embodiment rewrites the TTL (Time To Live) of the received LM frame to 0 at regular intervals.
  • the MIP2-2 according to the first embodiment is a data frame of a duplicate LM frame (including a duplicate LM frame in which TTL is 0) received until all duplicate LM frames in which TTL is 0 are received.
  • An LM frame having the sum of the numbers as the number of data frames is generated and transmitted to MEP1-2.
  • the MIP2-2 determines the number of data frames of the duplicate LM frame received before the reception of the duplicate LM frame.
  • An LM frame is generated in which the sum is stored as the number of data frames.
  • FIG. 5 is a flowchart showing the operation of the MIP 2 on the transmission side according to the first embodiment.
  • the frame analysis unit 20 of the MIP2-1 determines whether the frame received from the MEP1-1 is an OAM frame or a data frame (step S11).
  • the frame count unit 21 adds 1 to the number of data frames stored in the counter table 22 (Ste S12).
  • the LAG function unit 24 assigns the received data frame to any one of the plurality of communication links, and transfers the data frame to the MIP 2-2 via the communication link (step S13).
  • the OAM-LAG control unit 25 determines whether the received OAM frame is an LM frame. Is determined (step S14). If the OAM-LAG control unit 25 determines that the received OAM frame is not an LM frame (step S14: NO), the OAM-LAG control unit 25 performs predetermined OAM processing (step S15). On the other hand, if the OAM-LAG control unit 25 determines that the received OAM frame is an LM frame (step S14: YES), it stores the number of data frames stored in the counter table 22 in the LM frame (step S16). .
  • the OAM-LAG control unit 25 resets the number of data frames stored in the counter table 22.
  • the OAM-LAG control unit 25 determines whether or not the current timing is a timing for rewriting TTL (step S17).
  • the timing is determined by, for example, the elapsed time from the timing of rewriting the previous TTL, the number of received LM frames, the number of received data frames, and the like.
  • step S17 If the OAM-LAG control unit 25 determines that the current timing is the timing for rewriting TTL (step S17: YES), it rewrites the TTL of the LM frame to 0 (step S18). When the OAM-LAG control unit 25 rewrites the TTL of the LM frame to 0 or when it is not time to rewrite the TTL (step S17: NO), the OAM-LAG control unit 25 duplicates the LM frame for each communication link. An LM frame is generated (step S19). Then, the LAG function unit 26 transmits the duplicate LM frame to the MEP 1-2 via each communication link (step S20).
  • FIG. 6 is a flowchart showing the operation of the receiving side MIP2 according to the first embodiment.
  • the frame analysis unit 20 of the MIP2-2 determines whether the frame received from the MIP2-1 is an OAM frame or a data frame (step S21).
  • the frame transfer control unit 27 transmits the data frame to the LM frame table 29. It is determined whether or not the identification information is recorded (step S22).
  • the LM frame table 29 according to the first embodiment stores identification information of a communication link that has received a duplicate LM frame in which TTL is 0.
  • the LAG function unit 24 receives the received data frame. Is transferred to MEP1-2 (step S23).
  • the frame count unit 21 adds 1 to the number of data frames stored in the counter table 22 (step S24).
  • the frame transfer control unit 27 determines that the identification information of the communication link to which the data frame is transmitted is recorded in the LM frame table 29 (step S22: YES)
  • the data frame is stored in the frame buffer 28. Store and hold transfer of the data frame (step S25).
  • the MIP 2-2 suspends transfer of the received data frame after the last received duplicate LM frame used for generating the LM frame (a duplicate LM frame with a TTL of 0).
  • MIP2-2 does not store in frame buffer 28 for the data frame received before the last received duplicated LM frame used for generating LM frame (duplicated LM frame with TTL 0).
  • the MIP2-2 does not cause a transfer delay when receiving a duplicate LM frame other than a duplicate LM frame with a TTL of 0.
  • the OAM-LAG control unit 25 determines whether the OAM frame is a duplicated LM frame. Is determined (step S26). When the OAM-LAG control unit 25 determines that the OAM frame is not a duplicated LM frame (step S26: NO), the OAM-LAG control unit 25 performs predetermined OAM processing (step S27). On the other hand, when the OAM-LAG control unit 25 determines that the OAM frame is a duplicate LM frame (step S26: YES), the OAM-LAG control unit 25 determines whether the TTL of the duplicate LM frame is 0 (step S28).
  • step S28 determines that the TTL of the duplicate LM frame is 0 (step S28: YES)
  • it records the identification information of the communication link through which the duplicate LM frame is transmitted in the LM frame table 29 (Ste S29).
  • the OAM-LAG control unit 25 records the duplicate LM frame in the LM frame table 29. It is determined whether or not (step S30). That is, the OAM-LAG control unit 25 determines whether or not a duplicate LM frame duplicated from the same LM frame as the duplicate LM frame has already been received.
  • step S30 When determining that the duplicate LM frame is not recorded in the LM frame table 29 (step S30: NO), the OAM-LAG control unit 25 records the duplicate LM frame in the LM frame table 29 (step S31). On the other hand, when it is determined that the duplicate LM frame is recorded in the LM frame table 29 (step S30: YES), the OAM-LAG control unit 25 discards the duplicate LM frame (step S32).
  • the OAM-LAG control unit 25 determines whether or not the identification information of all communication links is recorded in the LM frame table 29 (step S33). That is, the OAM-LAG control unit 25 determines whether or not a duplicate LM frame with a TTL of 0 has been received from all communication links.
  • step S33 When the OAM-LAG control unit 25 determines that the identification information of all the communication links is recorded in the LM frame table 29 (step S33: YES), all the duplicate LM frames recorded in the LM frame table 29 are stored. An LM frame is generated with the sum of the number of data frames as the number of data frames (step S34). Further, the OAM-LAG control unit 25 newly adds the counter value stored in the counter table 22 to the LM frame as the number of data frames to the LM frame (step S35). At this time, the OAM-LAG control unit 25 resets information stored in the LM frame table 29 and the counter table 22. Then, the LAG function unit 26 transfers the LM frame generated by the OAM-LAG control unit 25 to the MEP 1-2 (step S36). Further, after transmitting the LM frame, the LAG function unit 26 transfers the data frame recorded in the frame buffer 28 to the MEP 1-2 (step S37). At this time, the frame count unit 21 adds the number of transferred data frames to the counter table 22
  • step S33 NO
  • a new LM frame is generated at that time. Not performed.
  • the MIP 2 can reduce the transmission delay of the data frame in the communication system 100 having the communication related to link aggregation.
  • MIP2 which concerns on 1st Embodiment demonstrated the case where a new LM frame was produced
  • MIP2 does not generate a new LM frame when receiving an LM frame in which TTL indicates 0, and does not generate a new LM frame in a case where an LM frame in which TTL indicates a value other than 0 is received.
  • a frame may be generated.
  • MIP2 may determine whether to generate a new LM frame based on parameters other than TTL.
  • the MIP2-2 calculates the sum of the number of data frames of the duplicate LM frame received after receiving a predetermined number of data frames and the number of data frames of the duplicate LM frame received before the duplicate LM frame, An LM frame having the number of data frames is generated and transmitted to MEP1-2. Note that the predetermined number of data frames is greater than the number of data frames transmitted at least during the transmission interval of the LM frame.
  • the operation of MIP2 on the transmission side according to the second embodiment is obtained by excluding steps S17 and S18 from the operation of MIP2 according to the first embodiment. That is, the MIP 2 on the transmission side according to the second embodiment duplicates and transfers the LM frame without rewriting the TTL.
  • the operation of the MIP2 on the receiving side according to the second embodiment is the same as that of the MIP2 operation according to the first embodiment, in which the OAM-LAG control unit 25 sets the counter value stored in the counter table 22 to a predetermined value. It is determined whether or not the value is greater than or equal to the value.
  • the MIP 2 can reduce the transmission delay of the data frame in the communication system 100 having communication related to link aggregation.
  • MIP2 which concerns on 2nd Embodiment demonstrated the case where it was determined whether a new LM frame was produced
  • MIP2 may determine whether or not to generate a new LM frame based on whether or not an elapsed time from the time when TTL was transmitted last time is a predetermined time or more. .
  • the MIP 2 may determine whether to generate a new LM frame based on whether a predetermined number of LM frames have been received.
  • the MIP 2 that performs link aggregation communication duplicates an LM frame and generates a new LM frame, but is not limited thereto.
  • the MEP 1 that performs link aggregation communication may perform duplication of an LM frame and generation of a new LM frame.
  • FIG. 7 is a schematic block diagram showing the basic configuration of the communication device 4.
  • the configuration of the MIP 2 illustrated in FIG. 4 as an embodiment of the communication device 4 has been described, but the basic configuration of the communication device 4 is as illustrated in FIG. That is, the communication device 4 has a basic configuration of the receiving unit 40 and the measurement frame generating unit 41.
  • the receiving unit 40 is replicated from each of a plurality of communication links connected to another communication device 4 from a single measurement frame that stores a plurality of data frames and the number of data frames transmitted by the other communication device 4.
  • a duplicate measurement frame is received.
  • the measurement frame generator 41 stores the sum of the number of data frames stored in the duplicate measurement frame copied from the different measurement frames as the number of data frames transmitted by the other communication device 4 Is generated. Thereby, the communication apparatus 4 can reduce the transmission delay of the data frame in the communication system 100 having communication related to link aggregation.
  • FIG. 8 is a schematic block diagram showing a configuration of the computer 9 according to at least one embodiment.
  • the computer 9 includes a CPU 90, a main storage device 91, an auxiliary storage device 92, and an interface 93.
  • the above MEP1 and MIP2 are mounted on the computer 9.
  • the operation of each processing unit described above is stored in the auxiliary storage device 92 in the form of a program.
  • the CPU 90 reads out the program from the auxiliary storage device 92, expands it in the main storage device 91, and executes the above processing according to the program. Further, the CPU 90 secures a storage area corresponding to each of the storage units described above in the main storage device 91 according to the program.
  • the auxiliary storage device 92 is an example of a tangible medium that is not temporary.
  • Other examples of the tangible medium that is not temporary include a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, and a semiconductor memory connected via the interface 93.
  • the program may be for realizing a part of the functions described above. Further, the program may be a so-called difference file (difference program) that realizes the above-described function in combination with another program already stored in the auxiliary storage device 92.
  • difference file difference program
  • the present invention may be applied to a communication device, a communication method, a program, and a communication system.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un dispositif de communication comportant les éléments suivants : une unité de réception qui reçoit, en provenance de chacune d'une pluralité de liaisons de communication associées à un premier dispositif de communication, une pluralité de trames de données et une trame de mesure dupliquée, qui constitue une duplication d'une trame de mesure stockant le nombre de trames de données transmises par le premier dispositif de communication ; et une unité de génération de trame de mesure, qui génère une trame de mesure stockant, en tant que nombre de trames de données transmises par le premier dispositif de communication, la somme du nombre de trames de données stockées dans la trame de mesure dupliquée, laquelle est dupliquée à partir d'une trame de mesure différente.
PCT/JP2015/057658 2014-07-28 2015-03-16 Dispositif de communication, procede de communication, programme et systeme de communication WO2016017206A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008131615A (ja) * 2006-11-27 2008-06-05 Kddi Corp リンクアグリゲーション用の通信装置及びプログラム
JP2010028654A (ja) * 2008-07-23 2010-02-04 Fujitsu Ltd 通信装置及びｏａｍフレーム送信方法
WO2010125883A1 (fr) * 2009-04-30 2010-11-04 日本電気株式会社 Système de communication, dispositif d'émission, dispositif de réception, procédé d'émission, procédé de réception et programme
JP2012129868A (ja) * 2010-12-16 2012-07-05 Nec Corp 通信システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008131615A (ja) * 2006-11-27 2008-06-05 Kddi Corp リンクアグリゲーション用の通信装置及びプログラム
JP2010028654A (ja) * 2008-07-23 2010-02-04 Fujitsu Ltd 通信装置及びｏａｍフレーム送信方法
WO2010125883A1 (fr) * 2009-04-30 2010-11-04 日本電気株式会社 Système de communication, dispositif d'émission, dispositif de réception, procédé d'émission, procédé de réception et programme
JP2012129868A (ja) * 2010-12-16 2012-07-05 Nec Corp 通信システム

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