CN101166154B - A data transmission method and device in coaxial Ethernet - Google Patents
A data transmission method and device in coaxial Ethernet Download PDFInfo
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- CN101166154B CN101166154B CN2007101459344A CN200710145934A CN101166154B CN 101166154 B CN101166154 B CN 101166154B CN 2007101459344 A CN2007101459344 A CN 2007101459344A CN 200710145934 A CN200710145934 A CN 200710145934A CN 101166154 B CN101166154 B CN 101166154B
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Abstract
The method includes steps: CNU device obtains data needed to send to CLT device down going devices; CNU device adds the data to Report frame and sends the data to CLT device. The method also includes steps: CLT device obtains data needed to send to CNU device from up layer of network; CLT device adds the data to Gate frame, and sends the data to CNU device. The invention also discloses CNU device and CLT device in use for data transmission in coaxial Ethernet. In the method, service data and control information carries by Report frame and Gate frame interacted between CNU device and CLT device so as to take full advantage of outband data existed in Report frame and Gate frame possibly. The invention raises efficiency for transferring data in coaxial Ethernet as well as saves bandwidth.
Description
Technical field
The present invention relates to communication technical field, relate in particular to data transmission method and equipment in a kind of coaxial Ethernet.
Background technology
Coaxial Ethernet switch is to be transmission medium with the coaxial cable, and the function of integrated Ethernet switch and multiple spot control has utilized the existing coaxial cable of cable TV network to realize the subscriber household access, and is with low cost.
A typical EOC (Ethernet over Coax, Ethernet access based on coaxial net) system comprises CLT (Coaxial Line Terminal, the coaxial cable carrier Ethernet head end), CNU (CoaxialNetwork Unit, coaxial cable carrier ethernet terminal), branch distributor and coaxial cable are formed.Carry out communication based on Multi-point Control Protocol between CLT and the CNU.Its a kind of connected mode schematic diagram as shown in Figure 1.
The last behavior GE of CLT (Gigabit Ethernet, the Ethernet of 1000M transmission rate) mouthful, data flow is an ethernet frame., transmit on existing coaxial cable TV signal and the synthetic blended data stream of Ethernet data by CLT.
CNU is a user terminal, and up going port is a coaxial cable, and down going port comprises FE (Fast Ethernet, Fast Ethernet/100,000,000 nets) mouthful and coaxial cable mouth.10/100M Ethernet interface (FE) links to each other with TV with set-top box, coaxial cable mouth, the inside is integrated PHY layer chip and MAC layer chip, and wherein PHY layer chip is used for the reception of data, and MAC layer chip is used for the processing of data.
For fear of data collision, realize the synchronous of signal, to realize automatic range between CLT and the CNU, and carry out the upstream bandwidth distribution according to each user's SLA (Service Level Agreement, service level agreement).Wherein downlink data (CLT mails to the packet of CNU) is transferred to each CNU with broadcast mode, the packet of CNU reception self LLID (Logical Link Identifier, LLID) or broadcasting LLID.And at up direction, the data that CNU sends only can send to CLT, and can not arrive CNU.For fear of conflict and network efficiency, the transmitting time of CNU needs arbitration, promptly adopts time-division multiplex technology, distributes to send window of each CNU, and after CNU arrived send window, CNU began to send data.For fear of data collision, realize the synchronous of signal, to realize automatic range between CLT and the CNU, and carry out the upstream bandwidth distribution according to each user's SLA (Service Level Agreement, service level agreement).
In the prior art, CLT each dispatching cycle (Cycle) distributes time slot to give each CNU according to the content that reports of CNU and the SLA of each CNU.Existing algorithm is come according to priority scheduling according to the priority-level of the formation that CNU reports, and uses RR (training in rotation) dispatching algorithm between each CNU.
An authorization cycles is the cycle of a budget allocated bandwidth, and according to the different needs that uses, the typical length in this cycle can be 5ms (millisecond)～60ms.The typical cycle is made up of three phases, and then constructs the algorithm structure of a kind of DBA (Dynamic Bandwidth Allocation, Dynamic Bandwidth Allocation).The three phases in typical DBA algorithm cycle as shown in Figure 2, at cycle n-1, CNU produces report frame Report and sends to CLT, this stage is called Collection Stage (collection phase).At cycle n, CLT is according to these reports of receiving, utilizes the DBA algorithm to make a decision and produces mandate, and these mandates will be effective at cycle n+1, and this stage is called Calculation Stage (calculation stages).Promptly in current period, the DBA algorithm calculates the information that the last cycle collects, and carries out following one-period and determine that effectively in utilized bandwidth of following one-period, following one-period n+1 is called ActivationStage (activation stage) to CNU according to this decision.
Can see that from this process CNU transmits and receive data according to the CLT distributed time slot.And in each Cycle, CLT can send the Gate frame to each CNU.And CNU can report CNU with length of data package in the formation by the Report frame simultaneously.
In the prior art, carry the information of 8 formations in Repot frame and the Gate frame at most.And when Report frame or Gate frame did not carry full 8 formations, idle part also can't be carried other data messages.The part of these free time is still transmitted in the transmission of each CLT and CNU, has therefore caused bandwidth waste.
Summary of the invention
The invention provides data transmission method and equipment in a kind of coaxial Ethernet,, save bandwidth with the efficiency of transmission of data in the coaxial Ethernet that improves prior art.
For achieving the above object, the invention provides the data transmission method in a kind of coaxial Ethernet, may further comprise the steps:
By acl list is set, set the data that send to CLT equipment by the Report frame in the CNU equipment;
Described CNU equipment obtains need be to the data of CLT equipment transmission;
Described CNU equipment needs by the data of Report frame to the transmission of CLT equipment from described need obtaining to the data that CLT equipment sends according to described setting;
Described CNU equipment sends described need adding in the Report frame and to described CLT equipment by the data that the Report frame sends to CLT equipment, and the data volume that described Report frame carries is by the outer data volume decision of the band of described Report frame.
Wherein, describedly comprise to the data that CLT equipment sends: business datum and control information by the Report frame.
Wherein, described CNU equipment adds to data in the Report frame and also comprise step after CLT equipment sends:
Described CNU equipment receives the Gate frame that described CLT equipment sends;
Described CNU equipment obtains the data of carrying in the described Gate frame and handles.
Wherein, described CNU equipment obtains the data of carrying in the Gate frame and the step handled is specially:
Described CNU device parses is obtained the data in the described Gate frame, sends for the downstream plant of business datum to correspondence, is handled by this CNU equipment for control information.
Wherein, described method of carrying data in the Report frame is specially:
In the Report frame, do not carry the payload field part of queuing message, add the data that described needs send to CLT equipment by the Report frame.
The present invention also provides the data transmission method in a kind of coaxial Ethernet, may further comprise the steps:
By acl list is set, set the data that send to CNU equipment by the Gate frame in the CLT equipment;
Described CLT equipment obtains need be to the data of CNU equipment transmission;
Described CLT equipment needs by the data of Gate frame to the transmission of CNU equipment from described need obtaining to the data that CNU equipment sends according to described setting;
Described CLT equipment sends described need adding in the Gate frame and to described CNU equipment by the data that the Gate frame sends to CNU equipment, and the data volume that described Gate frame carries is by the outer data volume decision of the band of described Gate frame.
Wherein, describedly comprise to the data that CNU equipment sends: business datum and control information by the Gate frame.
Wherein, described CLT equipment obtains and need also comprise step before the step of the data that CNU equipment sends:
Described CLT equipment receives the Report frame that CNU equipment sends;
Described CLT equipment obtains the data of carrying in the described Report frame and handles.
Wherein, described CLT equipment obtains the data of carrying in the Report frame and the step handled is specially:
Described CLT device parses goes out the data of carrying in the described Report frame;
Described CLT equipment sends the business datum that parses to upper layer network, the control information that parses is handled at local CLT equipment.
Wherein, described method of carrying data in the Gate frame is specially:
In the Gate frame, do not carry the payload field part of queuing message, add the data that described needs send to CNU equipment by the Gate frame.
The present invention also provides a kind of CNU equipment, is used for the transfer of data of coaxial Ethernet, comprising:
CNU downstream interface unit is used to receive the data of the downstream plant transmission that is connected with CNU equipment and sends to the data qualification unit;
The data qualification unit is used for according to predefined criteria for classification, and the business datum and the control information that send by the Report frame in the data that described CNU downstream interface unit is received send to the particular data queue unit; Needn't directly send to described CNU upstream Interface unit by the data of Report frame transmission;
The particular data queue unit is used to receive and store the data of passing through the transmission of Report frame of described data qualification unit transmission and offer described Report frame adding device;
Report frame adding device is used for described particular data queue unit is needed to add in the Report frame that CLT equipment sends to the data that CLT equipment sends;
CNU upstream Interface unit is used for the Report frame that carries data of described Report frame adding device generation and needn't sending to CLT equipment by the data that the Report frame sends of described data qualification unit transmission;
Gate frame resolution unit, when being used for receiving the Gate frame from CLT equipment in described CNU upstream Interface unit, resolve described Gate frame and whether comprise data, if comprise that the business datum that then will parse sends to downstream plant by described CNU downstream interface unit from described Gate frame, this locality is carried out in the control information that parses handle.
The present invention also provides a kind of CLT equipment, comprising:
Send processing unit, be used for and after the data that CNU equipment sends are handled, send to Gate frame adding device by the Gate frame;
Gate frame adding device, the data after the processing that is used for described transmission processing unit is sent are added the Gate frame to, and the Gate frame that will carry data sends to CLT downstream interface unit;
CLT downstream interface unit is used for the Gate frame that carries data that described Gate frame adding device is sent and other need send to descending CNU equipment to the data that CNU equipment sends.
Wherein, also comprise:
CLT upstream Interface unit when being used to receive the descending data of upper layer network, sends to described transmission processing unit with the data that receive;
Report frame resolution unit when being used for receiving in described CLT downstream interface unit the Report frame from CNU equipment, being resolved described Report frame and whether is comprised data, if comprise then and will send to the reception processing unit in the described Report frame;
Receive processing unit, be used for the Report frame that described Report frame resolution unit sends is handled, the business datum that will parse from described Report frame is converted to the IP message and sends to upper layer network by described CLT upstream Interface unit, this locality is carried out in the control information that parses handle.
Compared with prior art, the present invention has the following advantages:
In the embodiments of the invention, for data volume less business datum and control information, can transmit by Report frame and Gate frame, thereby the outer data of the band that may exist in Report frame and the Gate frame have been made full use of, improve the efficiency of transmission of data in the coaxial Ethernet, saved bandwidth.
Description of drawings
Fig. 1 is the connected mode schematic diagram of EOC system in the prior art;
Fig. 2 is the schematic diagram of the DBA algorithm on the CLT in the prior art;
Fig. 3 is the form schematic diagram of Report frame in the prior art;
Fig. 4 is the form schematic diagram of Gate frame in the prior art;
Fig. 5 is the data transmission method flow chart in the coaxial Ethernet among the present invention;
Fig. 6 is the form schematic diagram of Report frame of the present invention;
Fig. 7 is the form schematic diagram of Gate frame of the present invention;
Fig. 8 is the structural representation of the data transmission system in the coaxial Ethernet of the present invention.
Embodiment
In present coaxial Ethernet switch, CNU is by sending state and the request of Report frame report CNU to CLT.The form of Report frame as shown in Figure 3, stipulated in the prior art that the Report frame can carry 8 formations at most, the present invention uses two formations to be example with CNU, these two formations are respectively HP (High Priority, high priority) formation and LP (Low Priority, low priority) formation, so CNU has reported the length of two formations to give CLT by 8 bytes in the Report frame.
As shown in Figure 3, the length of the field of carrying in the Report frame is respectively: MPCPDU-DA (MPCPData Unit-Destination Address, MPCP protocol element-destination address) totally 6 bytes, SA (Source Address, source address) totally 6 bytes, Length/Type (length/type) is totally 2 bytes, ProType (frame type) 2 bytes, Timestamp (timestamp) is totally 3 bytes, QueueNum (queue number) is totally 1 byte, Flags (sign) is totally 1 byte, QueueLength (queue length) is totally 8 bytes, FCS (Frame Check Sequence, Frame Check Sequence) totally 4 bytes add up to 33 bytes.Wherein, carried sign in the Flags field about number of queues.Usually the Report frame is the same with other protocol massages, and default-length is 64 bytes, then for the Report frame that has used two formations, has 31 bytes to can be used as the outer data of band.
CLT with the normal reciprocal process of CNU in, send the mandate time to CNU by the Gate frame send so that CNU carries out data according to the time of being distributed.The Gate frame format is illustrated in fig. 4 shown below, to comprise in the above-mentioned Report frame that two formations are example, main bag has expanded time started (Grant#n Start TimeStamp) and the time slot length (Grant#n Duration) of CLT to two formation institute distributed time slot of CNU in the content that the Gate frame returns.
As shown in Figure 4, the length of the field of carrying in the Gate frame is respectively: MPCPDU-DA is totally 6 bytes, SA totally 6 bytes, Length/Type totally 2 bytes, ProType totally 2 bytes, Timestamp totally 3 bytes, Flag totally 1 byte, Timingwheel (time distribution) 10 bytes, Reserved (reserved field) totally 6 bytes, FCS totally 4 bytes, adds up to 40 bytes.Wherein, carried sign in the Flags field about number of queues.Usually the Gate frame is the same with other protocol massages, and default-length is 64 bytes, then for the Gate frame that has used two formations, also has 24 bytes to can be used as the outer data of band.
At present, only in the Report frame with in the Gate frame, transmit about multiple spot control relevant information, and not Data transmission and other control informations.Control information at present sends by the OAM message between CLT equipment and CLU equipment usually, the SLA configuration that sends to CNU as CLT etc., this control information is only used between CLT and CNU, can not hold equipment transmission downstream at CNU, also can not send to upstream plant at the CLT end.
Can know by above analysis, when the Report frame does not carry completely 8 formations, two formations are example to carry respectively in Report frame and the Gate frame: 31 bytes and 24 bytes in the Gate frame in the Report frame are not carried any effective information, but in the transmission of each CLT and CNU, still transmitted, therefore caused bandwidth waste.
Consider above-mentioned situation, the present invention proposes a kind of Report and Gate frame of in coaxial switch system, utilizing and come method of transferring data, in Report frame and Gate frame, exist outside the band under the data conditions, send by the outer data carry data of band in the CNU use Report frame and to CLT, send by the outer data carry data of band in the CLT use Gate frame and to CNU.These data comprise general business datum and control information.
Transmission method in a kind of coaxial Ethernet of the present invention comprises the steps: as shown in Figure 5
Step s501, CNU obtain to be needed by the data of Report frame to the CLT transmission.
At first, CNU need determine which kind of data is sent to CLT by the Report frame, comprise that with the Report frame two formations are example, the length that each frame can be used to Data transmission is 31 bytes, if be 10ms each dispatching cycle, then the per second data of using the Report frame to transmit are 31 * (1/0.01) * 8=24.8Kb/s.If carry more formation in the Report frame, the speed of then transmitting data can be slower.Therefore, the speed of using this Report frame and Gate frame to carry out data passes is understood less, is not suitable for the transmission of large-scale data.Analyze based on this, need the standard of the data that send by the Report frame be preestablished.
Based on above consideration, CNU at first judges classification according to predefined standard logarithmic according to the source when the data of the IP message form that receives the downstream plant transmission.For example a small amount of business datum of obtaining for the ammeter from network, water meter or other equipment can use the Report frame to send.This judges that employed standard can realize by ACL (Access Control List, Access Control List (ACL)) tabulation is set.In addition, the mutual control information data amount of CLT equipment and CNU equipment is also less, can send by the Report frame equally.For this reason, CNU need set up a particular queue in advance, all is met data and the control information of using the Report frame to send condition (this frame sends condition when acl list is set, and is set ACL controlled condition) be placed in this particular queue.
Step s502, CNU add these data to will be in the Report frame that CLT sends.
When CNU detects when having data to exist in the particular queue, these data can be added to need be in the Report frame that CLT sends, and the quantity of carry-on data is by the outer data bulk decision of the band of Report frame in each Report frame.
Step s503, CNU send this Report frame to CLT.
Step s504, CLT detect when including data in the Report frame, and these data are handled.
By resolving the Flags field, CLT can obtain the number of queues of carrying in this Report frame, and the part after formation is the data of carrying.One sign position, starting position in this part can identify whether carrying other data in the Report frame.CLT detects when including data in the Report frame, to deliver to CPU on the Report frame, by CPU the data parsing in the Report frame is come out, directly handle by the CPU of this equipment for the control information that parses and to get final product, for the data that the needs that parse are uploaded, be encapsulated as the IP message again and upload.
Step s505, CLT detect descending data of upper layer network or need be when control information that CNU sends, and it is added to will be in the Gate frame that CNU sends.
This adds in the data and step s501 of Gate frame, and the type of the data of passing through the transmission of Report frame that CNU selected is identical.When the downlink data of the upper layer network up going port by CLT enters, CLT at first judges classification according to predefined standard logarithmic according to the source, for example by setting acl rule, the data that will meet by Gate frame transmission standard are reported to CPU, and by CPU data are put into the GATE frame; Or have and when control information that CNU sends, directly the GATE frame is put in this control information by CPU.
Step s506, CLT send this Gate frame to CNU.
Step s507, CNU detect when including data in the Gate frame, obtain this data.
By resolving the Flags field, CNU can obtain the number of queues of carrying in this Gate frame, and the part after formation is the data of carrying.One sign position, starting position in this part can identify whether carrying other data in the Gate frame.CNU detects when including data in the Gate frame, and these data are resolved and obtained to the data in the Gate frame.
Step s508, CNU handle this data.
For the business datum that need send to downstream plant, the data that CNU is converted to these data the IP message format send to downstream plant by the FE mouth; For the control information that CLT sends, directly handle by this CNU.
Need to prove, in said process, in Report frame and Gate frame, carry data and send, can the mandate temporal information to formation of carrying in the queuing message that carries in the Report frame and the Gate frame not impacted.This is because the treatment mechanism difference of these two parts data can not interfere with each other, and can and deposit.
State in realization in the described method of flow process, also need the form of Report frame and Gate frame is made amendment.
As shown in Figure 6, form schematic diagram for Report frame of the present invention, equally to comprise that two formations are example, compare with the form of the Report frame of prior art among Fig. 3, increased following content: whether Valid position (Bit7) expression Report frame carries data, as carrying data with " 1 " expression, data are not carried in " 0 " expression, Type (Bit6-Bit5) represents data type, as business datum or control information, 4 kinds of data types can be supported in the 2Bit position, can be used for the sign of data type.Length (Bit0-Bit4) under the situation that comprises two formations, can support the data of 30 bytes at most.
As shown in Figure 7, form schematic diagram for Gate frame of the present invention, whether Valid position (Bit7) expression Gate frame carries data, and as carrying data with " 1 " expression, data are not carried in " 0 " expression, Type (Bit6-Bit5) represents data type, as business datum or control information, 4 kinds of data types can be supported in the 2Bit position, Length (Bit0-Bit4), under the situation that comprises two formations, can support 23 byte datas at most.
The application of the invention, utilize Report frame and Gate frame to transmit data, the transmission capacity that increases data under the DBA algorithm complexity situation of CLT can not increased, simultaneously carrying two formations, dispatching cycle at every frame is under the situation of 10ms, the CNU up direction can be saved the bandwidth of 30Byte * (1/0.01) * 8=24.8Kbps, and the CLT down direction can be saved the bandwidth of 22Byte * (1/0.01) * 8=18.4Kbps.
In more than describing, all the information of carrying two formations with Report frame and Gate frame is example, and embodiments of the present invention are described.The formation of carrying when Report frame and Gate frame is during for other numbers, and embodiments of the present invention only need that foregoing description is carried out respective change and get final product, and do not do being repeated in this description at this.
The present invention also provides the data transmission system in a kind of coaxial Ethernet, is used for by Report frame and Gate transmission frame number certificate.As shown in Figure 8, this system comprises at least one CNU equipment 10 and a CLT equipment 20.Wherein, CNU equipment 10 is used for adding data at the Report frame that sends to CLT equipment 20, and resolves the data that obtain returning in the Gate frame that CLT equipment 20 returns.CLT equipment 20 when receiving this Report frame, resolve comprising data and handle; Receiving need be to data that CNU equipment 10 sends the time, these data are being added in the Gate frame and to CNU equipment 10 to sending.
Wherein, CNU equipment 10 specifically comprises:
CNU downstream interface unit 11 is used to receive the data that the downstream plant that is connected with CNU equipment sends; In addition, when receiving the data of Gate frame resolution unit 16 transmissions, these data are transmitted to the downstream plant of correspondence.
Particular data queue unit 13 is used to receive and store the data of the needs of data qualification unit 12 transmissions by the transmission of Report frame.
Report frame adding device 14, be used for when particular data queue unit 13 exists needs to pass through the data of Report frame transmission, this part data is added in the Report frame that CLT equipment sends, and the Report frame after the interpolation sends to CLT equipment by CNU upstream Interface unit 15.
CNU upstream Interface unit 15, be used for the Report frame that carries data that needn't send by the data and the Report frame adding device 14 of Report frame transmission that data qualification unit 12 sends is sent to CLT equipment, and when receiving the Gate frame of CLT transmission, the Gate frame is sent to Gate frame resolution unit 16.
Gate frame resolution unit 16, be used to resolve the Gate frame of transmitting CNU upstream Interface unit 15 and whether comprise data from CLT, then the data in the Gate frame are sent to CNU downstream interface unit 11 if comprise the descending data of needs, then handle by this equipment if comprise control information.
Wherein, CLT equipment 20 specifically comprises:
CLT downstream interface unit 21 is used to receive the Report frame that CNU equipment uploads and sends to Report frame resolution unit 22; In addition, the Gate frame that carries data that Gate frame adding device 25 is sent and other need send to descending CNU equipment to the data that CNU equipment sends.
Report frame resolution unit 22 is used to resolve the Report frame of transmitting CLT downstream interface unit 21 from CNU equipment and whether comprises data, as if comprising then this Report frame is sent to receiving processing unit 23, otherwise directly handles this Report frame.
Receive processing unit 23, the business datum that is used for Report frame that Report frame resolution unit 22 is sent parses, and is encapsulated as the IP message again, and the IP message is sent to CLT upstream Interface unit 26, for the control information that parsing obtains, directly carry out this locality and handle.
Send processing unit 24, being used in CLT upstream Interface unit 26 data that send has and need add the data that send in the Gate frame to or have the control messages need be when CNU sends, and the data that needs are added in the Gate frame send to Gate frame adding device 25.
Gate frame adding device 25 is used for need adding the Gate frame to by the data that the Gate frame sends with what send that processing unit 24 sends, and the Gate frame that will carry data sends to CLT downstream interface unit 21.
CLT upstream Interface unit 26 is used for the IP message that receives processing unit 23 transmissions is uploaded; And when receiving the descending data of upper layer network, will receive data and send to and send processing unit 24.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprises that some instructions are with so that CLT or CNU equipment are carried out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (12)
1. the data transmission method in the coaxial Ethernet is characterized in that, may further comprise the steps:
By the access control list ACL tabulation is set, set the data that send to coaxial cable carrier Ethernet head end CLT equipment by the Report frame in the coaxial cable carrier ethernet terminal CNU equipment;
Described CNU equipment obtains need be to the data of CLT equipment transmission;
Described CNU equipment needs by the data of Report frame to the transmission of CLT equipment from described need obtaining to the data that CLT equipment sends according to described setting;
Described CNU equipment sends described need adding in the Report frame and to described CLT equipment by the data that the Report frame sends to CLT equipment, and the data volume that described Report frame carries is by the outer data volume decision of the band of described Report frame.
2. the data transmission method in the coaxial according to claim 1 Ethernet is characterized in that, describedly comprises to the data that CLT equipment sends by the Report frame: business datum and control information.
3. the data transmission method in the coaxial according to claim 1 Ethernet is characterized in that, described CNU equipment adds to data in the Report frame and also comprise step after CLT equipment sends:
Described CNU equipment receives the Gate frame that described CLT equipment sends;
Described CNU equipment obtains the data of carrying in the described Gate frame and handles.
4. as the data transmission method in the coaxial Ethernet as described in the claim 3, it is characterized in that described CNU equipment obtains the data of carrying in the Gate frame and the step of processing is specially:
Described CNU device parses is obtained the data in the described Gate frame, sends for the downstream plant of business datum to correspondence, is handled by local CNU equipment for control information.
5. as the data transmission method in the coaxial Ethernet as described in each in the claim 1 to 4, it is characterized in that described method of carrying data in the Report frame is specially:
In the Report frame, do not carry the payload field part of queuing message, add the data that described needs send to CLT equipment by the Report frame.
6. the data transmission method in the coaxial Ethernet is characterized in that, may further comprise the steps:
By acl list is set, set the data that send to CNU equipment by the Gate frame in the CLT equipment;
Described CLT equipment obtains need be to the data of CNU equipment transmission;
Described CLT equipment needs by the data of Gate frame to the transmission of CNU equipment from described need obtaining to the data that CNU equipment sends according to described setting;
Described CLT equipment sends described need adding in the Gate frame and to described CNU equipment by the data that the Gate frame sends to CNU equipment, and the data volume that described Gate frame carries is by the outer data volume decision of the band of described Gate frame.
7. as the data transmission method in the coaxial Ethernet as described in the claim 6, it is characterized in that, describedly comprise to the data that CNU equipment sends: business datum and control information by the Gate frame.
8. as the data transmission method in the coaxial Ethernet as described in the claim 7, it is characterized in that described CLT equipment obtains and need also comprise step before the step of the data that CNU equipment sends:
Described CLT equipment receives the Report frame that CNU equipment sends;
Described CLT equipment obtains the data of carrying in the described Report frame and handles.
9. as the data transmission method in the coaxial Ethernet as described in the claim 8, it is characterized in that described CLT equipment obtains the data of carrying in the described Report frame and the step of processing is specially:
Described CLT device parses goes out the data of carrying in the described Report frame;
Described CLT equipment sends the business datum that parses to upper layer network, the control information that parses is handled at local CLT equipment.
10. as the data transmission method in the coaxial Ethernet as described in each in the claim 6 to 9, it is characterized in that described method of carrying data in the Gate frame is specially:
In the Gate frame, do not carry the payload field part of queuing message, add the data that described needs send to CNU equipment by the Gate frame.
11. a CNU equipment is used for the transfer of data of coaxial Ethernet, it is characterized in that, comprising:
CNU downstream interface unit is used to receive the data of the downstream plant transmission that is connected with CNU equipment and sends to the data qualification unit;
The data qualification unit is used for according to predefined criteria for classification, and the business datum and the control information that send by the Report frame in the data that described CNU downstream interface unit is received send to the particular data queue unit; Needn't directly send to described CNU upstream Interface unit by the data of Report frame transmission;
The particular data queue unit is used to receive and store the data of passing through the transmission of Report frame of described data qualification unit transmission and offer described Report frame adding device;
Report frame adding device is used for described particular data queue unit is needed to add in the Report frame that CLT equipment sends to the data that CLT equipment sends;
CNU upstream Interface unit is used for the Report frame that carries data of described Report frame adding device generation and needn't sending to CLT equipment by the data that the Report frame sends of described data qualification unit transmission;
Gate frame resolution unit, when being used for receiving the Gate frame from CLT equipment in described CNU upstream Interface unit, resolve described Gate frame and whether comprise data, if comprise that the business datum that then will parse sends to downstream plant by described CNU downstream interface unit from described Gate frame, this locality is carried out in the control information that parses handle.
12. a CLT equipment is characterized in that, comprising:
Send processing unit, be used for and after the data that CNU equipment sends are handled, send to Gate frame adding device by the Gate frame;
Gate frame adding device, the data after the processing that is used for described transmission processing unit is sent are added the Gate frame to, and the Gate frame that will carry data sends to CLT downstream interface unit;
CLT downstream interface unit is used for the Gate frame that carries data that described Gate frame adding device is sent and other need send to descending CNU equipment to the data that CNU equipment sends;
CLT upstream Interface unit when being used to receive the descending data of upper layer network, sends to described transmission processing unit with the data that receive;
Report frame resolution unit when being used for receiving in described CLT downstream interface unit the Report frame from CNU equipment, being resolved described Report frame and whether is comprised data, if comprise then and will send to the reception processing unit in the described Report frame;
Receive processing unit, be used for the Report frame that described Report frame resolution unit sends is handled, the business datum that will parse from described Report frame is converted to the IP message and sends to upper layer network by described CLT upstream Interface unit, this locality is carried out in the control information that parses handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN103152203B (en) * | 2013-03-18 | 2015-10-14 | 成都广达电子股份有限公司 | A kind of method of EOC local side MAC Address restriction study |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6445709B1 (en) * | 1999-05-13 | 2002-09-03 | Advanced Micro Devices, Inc. | Method and apparatus for finding a match entry using receive port number embedded in the port vector |
| US6646983B1 (en) * | 2000-11-21 | 2003-11-11 | Transwitch Corporation | Network switch which supports TDM, ATM, and variable length packet traffic and includes automatic fault/congestion correction |
| CN1777334A (en) * | 2005-12-09 | 2006-05-24 | 润欣通信技术(上海)有限公司 | Ethernet passive optical network multi-service dynamic bandwide authorizing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6445709B1 (en) * | 1999-05-13 | 2002-09-03 | Advanced Micro Devices, Inc. | Method and apparatus for finding a match entry using receive port number embedded in the port vector |
| US6646983B1 (en) * | 2000-11-21 | 2003-11-11 | Transwitch Corporation | Network switch which supports TDM, ATM, and variable length packet traffic and includes automatic fault/congestion correction |
| CN1777334A (en) * | 2005-12-09 | 2006-05-24 | 润欣通信技术(上海)有限公司 | Ethernet passive optical network multi-service dynamic bandwide authorizing method |
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