CN101184036B - Port multiplexing method and device, veneer - Google Patents
Port multiplexing method and device, veneer Download PDFInfo
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- CN101184036B CN101184036B CN2007101724072A CN200710172407A CN101184036B CN 101184036 B CN101184036 B CN 101184036B CN 2007101724072 A CN2007101724072 A CN 2007101724072A CN 200710172407 A CN200710172407 A CN 200710172407A CN 101184036 B CN101184036 B CN 101184036B
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Abstract
The invention discloses a port-reuse method as well as related equipment and single boards. The equipments provided by the invention comprises the first single board and the second single board; the first single board comprises a packaging unit used for packaging the input data stream and sending the packaged data stream to the second single board; the second single board comprises a de-packaging unit, which is used for de-packaging the data stream packaged by the first single board. The port-reuse method provided by the invention comprises that the input data is packaged and the packaged data stream is sent to a target single board, the target single board de-packages the data stream and draws information needed by service from the de-packaged data stream. The invention can conveniently realize the port reuse of single board.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of method and apparatus, veneer of multiplexed port.
Background technology
Along with the development of mechanics of communication, increasingly high to the bandwidth requirement of transmission equipment, people satisfy the requirement of bandwidth through the port that increases equipment veneer.Prior art one for the veneer that does not have traffic handing capacity, increases veneer or replacing and has more that the veneer of multiport increases port number.Prior art two, for the veneer that traffic handing capacity is arranged, increase possesses the veneer of traffic handing capacity to increase port number; Other possess the veneer of traffic handing capacity a perhaps multiplexing equipment; In this case, after the veneer of the veneer of increase or multiplexing equipment was handled business, the data with Business Processing sent to the purpose veneer again.
In research and practice process to prior art, the inventor finds that there is following problem in prior art:
For prior art one, have the requirement that the veneer of multiport more satisfies bandwidth through increasing veneer or replacing, correspondingly the cost input need be increased, and the existing resource of this equipment can not be effectively utilized.
For prior art two; Veneer that is increased or the veneer that is re-used receive the laggard industry of data and are engaged in handling; Business data flow after will handling again sends to the purpose veneer; The type of service that different single boards is handled is different, is re-used or the veneer that increases can only be selected the veneer of handling business of the same type with the purpose veneer for use.Do not handle the professional veneer of same type if do not exist in this equipment, just can only increase port, can increase the cost input equally, can not effectively utilize the existing resource of this equipment through increasing veneer with the purpose veneer.
Summary of the invention
The technical problem that the embodiment of the invention will solve provides the method for a kind of equipment, veneer and multiplexed port, can realize easily multiplexed port reducing cost simultaneously.
For solving the problems of the technologies described above, the method embodiment of a kind of equipment provided by the present invention, veneer and multiplexed port realizes through following technical scheme:
A kind of equipment comprises first veneer and second veneer,
Said first veneer comprises: encapsulation unit is used for the data flow encapsulation with input, and the data flow transmission of said encapsulation is arrived said second veneer; Said second veneer comprises: decapsulation unit is used for the data flow decapsulation with the said encapsulation of said first veneer transmission, and the data flow after the decapsulation is sent to Service Processing Unit handles; The port of multiplexing first veneer of said second veneer does not carry out handling with professional relevant agreement face on the veneer that is re-used.
A kind of veneer; The port of the multiplexing purpose veneer of said veneer or the port of said veneer are multiplexing by purpose veneer institute; When said veneer is re-used, do not carry out handling with professional relevant agreement face, said veneer comprises: encapsulation unit is used for the data flow encapsulation with input; Decapsulation unit is used to receive the data flow of the encapsulation of sending from the purpose veneer, with the data flow decapsulation of said encapsulation from the purpose veneer, and the data flow after the decapsulation is sent to Service Processing Unit handles.
A kind of method of multiplexed port comprises: the veneer that is re-used is the data flow encapsulation of input, and with the data flow transmission of said encapsulation to the purpose veneer; Said purpose veneer is with said data flow decapsulation; From the data flow of said decapsulation, extract the needed information of Business Processing; Carry out professional processing, said purpose veneer is multiplexing veneer, on the said veneer that is re-used, does not carry out handling with professional relevant agreement face.
Have following beneficial effect in the technique scheme: the veneer that the embodiment of the invention provides is owing to be provided with encapsulation unit; Be transferred to second veneer after the data encapsulation; Realize the port of multiplexing another veneer of veneer, on the veneer that is re-used, need not carry out handling with professional relevant agreement face, direct with the data flow transmission that encapsulates to second veneer; Because the Data Stream Processing of encapsulation does not relate to the operation layer agreement, can make full use of the veneer port resource of this equipment.The embodiment of the invention makes full use of the port resource of at least two veneers in the equipment, has both enlarged the bandwidth of veneer port transmission, has reduced cost again.
Description of drawings
Fig. 1 is the schematic diagram that the embodiment of the invention realizes multiplexed port;
Fig. 2 is the structure chart of the equipment that provides of the embodiment of the invention;
Fig. 3 is the structure chart of the veneer that provides of the embodiment of the invention;
Fig. 4 is the method figure of the multiplexed port that provides of the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of method and apparatus, veneer of multiplexed port, is used to realize multiplexed port.
The embodiment of the invention is veneer and the method that example explanation realizes multiplexed port with PDH (PDH, Plesiochronous Digital Hierarchy) port, but the method for veneer of the present invention and multiplexed port is not limited to and is applied to the PDH port.
Fig. 1 is the schematic diagram of the realization multiplexed port that provides of the embodiment of the invention.
Veneer 1 all is connected on the equipment backboard with veneer 2.If the PDH port of veneer 1 is re-used, time division multiplexing (TDM Time Division Multiplexing) data flow gets into the PDH port of veneer 1, gets into the time slot cross unit of veneer 1 then.The time slot cross unit splits TDM stream or combination by different time slots; TDM stream after the time slot cross unit will split or make up by different time-gap sends to encapsulation unit; Encapsulation unit sends to TDM stream encapsulation back the decapsulation unit of veneer 2 through backboard; The decapsulation unit of veneer 2 is sent to the data flow decapsulation of encapsulation Service Processing Unit through the time slot cross unit and handles, and this moment, the time slot cross unit no longer carried out any processing to the data flow after the decapsulation; If the PDH port of veneer 1 is not re-used, after TDM flows into the PDH port, get into the time slot cross unit of veneer 1, the time slot cross unit directly mails to Service Processing Unit with tdm traffic and carries out Business Processing after TDM stream is pressed different time slot fractionation or combination.Need to prove, appearance when the time slot cross unit is pressed time slot fractionation or combination at needs to TDM stream, if need not press time slot fractionation or combination to TDM stream, then the time slot cross unit is the forwarding point as a data flow.
Fig. 2 is the structure chart of the equipment that provides of the embodiment of the invention.
A kind of equipment comprises core bus and at least two veneers, i.e. first veneer 100 and second veneer 200.
Said first veneer comprises: encapsulation unit 110 is used for the data flow encapsulation with input, and the data flow of said encapsulation is transferred to said second veneer through said core bus;
Said second veneer comprises: decapsulation unit 210 is used for the data flow decapsulation with the said encapsulation of said core bus transmission.
More specifically, to the PDH port, if the transmission means of the similar Ethernet of core bus, said encapsulation unit 110 is packaged into TDM transmission (TOP, the TDM Over Packet) bag based on bag with said tdm traffic;
Said decapsulation unit 210 is dressed up tdm traffic with the TOP bag deblocking of said encapsulation.
With E1 is example, and E1 frame data rate is 2.048Mbps, and sample rate is 8K, and every frame comprises 32 time slots, 8 bits of each time slot.When this veneer PDH port is re-used; When the suitable TDM based on bag of core bus transmits; The veneer encapsulation unit breaks into a TOP bag with the bits of all PDH port transmission in each sampling period; Per sampling period of each e1 port need be transmitted 256bits, supposes that this veneer has 4 PDH ports, and then the phase need break into a TOP bag with 256*4bits=128Bytes weekly.Be to guarantee the time delay of PDH stream, the TOP bag can not be long can not be too short; As long, packing and transmission can't be in a sampling period be accomplished simultaneously, influences efficiency of transmission, and as too short, the parcel that can't guarantee that Ethernet transmits is long.
After the TOP bag is transferred to second veneer through core bus, TOP is wrapped deblocking dress up TDM stream, and be sent to Service Processing Unit through the time slot cross unit.For second veneer, Service Processing Unit can utilize more tdm traffic like this, does not receive the restriction of this veneer PDH port number.
A kind of in addition mode adopts circuit emulation service (CES, circuit emulation service) under the ATM framework, this agreement is packaged into ATM Adaption Layer Type 1 (AAL1, ATM Adaption Layer Type 1) cell with TDM stream and transmits.
AAL1 is applicable to the connection-oriented A service of fixed bit rate, is applicable to emulation pulse-code modulation (PCM, the Pulse Code Modulation) circuit-switched service of the constant bit rate service transmission that provides real-time.Realize AAL1, need to guarantee that communicating pair all adopts the real-time coding mode, and employing is fixedly coupled the clock synchronization with both sides.
TDM stream is packaged in the AAL1 cell in encapsulation unit 110; The AAL1 cell is transferred to the purpose veneer through core bus; Purpose veneer decapsulation unit is dressed up tdm traffic with AAL1 cell deblocking, through the time slot cross unit tdm traffic is sent Service Processing Unit and further handles.
Further, said encapsulation unit 110 comprises:
First judging unit 111 is used to judge the encapsulated type of the data flow of said input;
TOP seals dress unit 112, is used for being based at said encapsulated type transmission TOP when bag of time division multiplexing tdm bag, and the data flow of said input is packaged into the TOP bag;
ATM cell encapsulation unit 113 is used for when said encapsulated type is asynchronous transfer mode ATM adapting layer types 1 cell, and the data flow of said input is packaged into the ATM Adaption Layer Type 1 cell.
Equally, said decapsulation unit comprises:
TOP wraps decapsulation unit 212, is used for when the encapsulated type of the data flow of said encapsulation is the TOP bag, the data flow deblocking of said encapsulation being dressed up tdm traffic;
ATM cell decapsulation unit 213 is used for when the data stream type of said encapsulation is the ATM Adaption Layer Type 1 cell, the data flow deblocking of said encapsulation being dressed up tdm traffic.
In the time need splitting or make up by time slot to data flow from the port input,, said first veneer also comprises:
Time slot cross unit 120 is used for the data flow of input is split or combination by time slot;
Said encapsulation unit 110 is with said data flow encapsulation of pressing time slot fractionation or combination.
For guaranteeing that port or port own that each veneer can both multiplexing other veneers are re-used; Each veneer all can be provided with encapsulation unit and decapsulation unit, and when the veneer port was re-used, encapsulation unit worked; During the port of multiplexing other veneers of veneer, decapsulation unit works; Equally; When the embodiment of the invention was provided at the veneer port and is re-used, this veneer can not carry out Business Processing, if but this veneer needs the port of multiplexing other veneers; Then this veneer should be provided with Service Processing Unit, so that carry out professional processing during the TDM port of multiplexing other veneers.
Seeing also Fig. 3 is the single plate structure figure that the embodiment of the invention provides.
As shown in the figure, veneer comprises:
Concrete, said encapsulation unit comprises:
TOP seals dress unit 312, and being used at said encapsulated type is TOP when bag, and the data flow of said input is packaged into the TOP bag;
ATM cell encapsulation unit 313 is used for when said encapsulated type is the ATM Adaption Layer Type 1 cell, and the data flow of said input is packaged into the ATM Adaption Layer Type 1 cell.
Equally, said decapsulation unit comprises:
TOP wraps decapsulation unit 322, is used for when the encapsulated type of the data flow of said encapsulation is the TOP bag, the data deblocking of said encapsulation being dressed up tdm traffic;
ATM cell decapsulation unit 323 is used for when the encapsulated type of the data flow of said encapsulation is the ATM Adaption Layer Type 1 cell, the data deblocking of said encapsulation being dressed up tdm traffic.
If the data of veneer port input need split or make up by time slot, said veneer also comprises:
Time slot cross unit 330 is used for the data flow of input is split or combination by time slot;
Said encapsulation unit 310 is with said data flow encapsulation of pressing time slot fractionation or combination.
So far, the single plate structure introduction that the embodiment of the invention provides finishes, and the embodiment of the invention also provides the method that is applied to the multiplexed port in this veneer in addition.
Fig. 4 is the method figure of the multiplexed port that provides of the embodiment of the invention.
When needs split tdm traffic or make up by time slot, carry out this step; If do not need, then direct execution in step 402.
The data flow that encapsulation is directly imported from port perhaps encapsulates the data flow that the time slot cross unit splits or makes up by time slot.Wherein, the data flow of importing from port is a tdm traffic, can tdm traffic be packaged into the TOP bag, perhaps tdm traffic is packaged into the AAL1 cell, conveniently in core bus, transmits.
The purpose veneer will extract the needed information of Business Processing through the decapsulation of backboard data flow transmitted.
As if what transmit through core bus is the TOP bag, and then the purpose veneer wraps deblocking with TOP and dresses up tdm traffic; As if what transmit through core bus is the AAL1 cell, and then the purpose veneer is dressed up tdm traffic with AAL1 cell deblocking.The tdm traffic of decapsulation enters into Service Processing Unit, and the purpose veneer is further handled.
More than method and apparatus, the veneer of a kind of multiplexed port provided by the present invention carried out detailed introduction; For one of ordinary skill in the art; Thought according to the embodiment of the invention; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. an equipment comprises first veneer and second veneer, it is characterized in that the port of multiplexing first veneer of said second veneer does not carry out handling with professional relevant agreement face on the veneer that is re-used;
Said first veneer comprises: encapsulation unit is used for the data flow encapsulation with input, and the data flow transmission of said encapsulation is arrived said second veneer;
Said second veneer comprises: decapsulation unit is used for the data flow decapsulation with the said encapsulation of said first veneer transmission, and the data flow after the decapsulation is sent to Service Processing Unit handles.
2. equipment according to claim 1 is characterized in that, said encapsulation unit comprises:
First judging unit is used to judge the encapsulated type of the data flow of said input;
TOP seals the dress unit, is used for being based at said encapsulated type transmission TOP when bag of time division multiplexing tdm bag, and the data flow of said input is packaged into the TOP bag;
The ATM cell encapsulation unit is used for when said encapsulated type is asynchronous transfer mode ATM adapting layer types 1 cell, and the data flow of said input is packaged into the ATM Adaption Layer Type 1 cell.
3. equipment according to claim 2 is characterized in that, said decapsulation unit comprises:
Second judging unit is used to judge the encapsulated type of data flow of the said encapsulation of said first veneer transmission;
TOP wraps decapsulation unit, is used for when the encapsulated type of the data flow of said encapsulation is the TOP bag, the data flow deblocking of said encapsulation is dressed up tdm traffic, and said tdm traffic being sent to Service Processing Unit handling;
The ATM cell decapsulation unit is used for when the encapsulated type of the data flow of said encapsulation is the ATM Adaption Layer Type 1 cell, the data flow deblocking of said encapsulation is dressed up tdm traffic, and said tdm traffic being sent to Service Processing Unit handling.
4. according to each described equipment of claim 1 to 3, it is characterized in that said first veneer also comprises:
The time slot cross unit is used for the data flow of input is split or combination by time slot;
Said encapsulation unit is with said data flow encapsulation of pressing time slot fractionation or combination.
5. a veneer is characterized in that, the port of the multiplexing purpose veneer of said veneer or the port of said veneer are multiplexing by purpose veneer institute, when said veneer is re-used, does not carry out handling with professional relevant agreement face, and said veneer comprises:
Encapsulation unit is used for the data flow encapsulation with input;
Decapsulation unit is used to receive the data flow of the encapsulation of sending from the purpose veneer, with the data flow decapsulation of said encapsulation from the purpose veneer, and the data flow after the decapsulation is sent to Service Processing Unit handles.
6. veneer according to claim 5 is characterized in that, said encapsulation unit comprises:
First judging unit is used to judge the encapsulated type of the data flow of said input;
TOP seals the dress unit, and being used at said encapsulated type is TOP when bag, and the data flow of said input is packaged into the TOP bag;
The ATM cell encapsulation unit is used for when said encapsulated type is the ATM Adaption Layer Type 1 cell, and the data flow of said input is packaged into the ATM Adaption Layer Type 1 cell.
7. veneer according to claim 6 is characterized in that, said decapsulation unit comprises:
Second judging unit is used to judge the encapsulated type of the data flow of said encapsulation from the purpose veneer;
TOP wraps decapsulation unit, is used for when the encapsulated type of the data flow of said encapsulation is the TOP bag, the data flow deblocking of said encapsulation is dressed up tdm traffic, and said tdm traffic being sent to Service Processing Unit handling;
The ATM cell decapsulation unit is used for when the encapsulated type of the data flow of said encapsulation is the ATM Adaption Layer Type 1 cell, the data flow deblocking of said encapsulation is dressed up tdm traffic, and said tdm traffic being sent to Service Processing Unit handling.
8. according to each described veneer of claim 5 to 7, it is characterized in that said veneer also comprises:
The time slot cross unit is used for the data flow of input is split or combination by time slot;
Said encapsulation unit is with said data flow encapsulation of pressing time slot fractionation or combination.
9. the method for a multiplexed port is characterized in that, comprising:
The veneer that is re-used is the data flow encapsulation of input, and with the data flow transmission of said encapsulation to the purpose veneer, said purpose veneer is multiplexing veneer, on the said veneer that is re-used, does not carry out the agreement face processing relevant with business;
Said purpose veneer extracts the needed information of Business Processing with said data flow decapsulation from the data flow of said decapsulation, carry out professional processing.
10. the method for multiplexed port according to claim 9 is characterized in that, before said data flow encapsulation with input, the data flow of input is pressed time slot split or make up.
11. the method according to claim 9 or 10 described multiplexed ports is characterized in that, the data flow of said input is the time division multiplexing tdm data flow.
12. the method for multiplexed port according to claim 11 is characterized in that, said is that said tdm traffic is packaged into the TOP bag with the data flow encapsulation;
Said purpose veneer is that the TOP bag deblocking of said encapsulation is dressed up tdm traffic with said data flow decapsulation.
13. the method for multiplexed port according to claim 11 is characterized in that, said is that said tdm traffic is packaged into the ATM Adaption Layer Type 1 cell with the data flow encapsulation;
Said purpose veneer is that the ATM Adaption Layer Type 1 cell deblocking of said encapsulation is dressed up tdm traffic with said data flow decapsulation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101724072A CN101184036B (en) | 2007-12-14 | 2007-12-14 | Port multiplexing method and device, veneer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101724072A CN101184036B (en) | 2007-12-14 | 2007-12-14 | Port multiplexing method and device, veneer |
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| CN101184036A CN101184036A (en) | 2008-05-21 |
| CN101184036B true CN101184036B (en) | 2012-04-25 |
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| CN2007101724072A Active CN101184036B (en) | 2007-12-14 | 2007-12-14 | Port multiplexing method and device, veneer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101882118B (en) * | 2009-05-05 | 2013-01-23 | 华为技术有限公司 | Single-board software acquiring and sending method, and single board, storage equipment and system |
| CN102315892B (en) * | 2010-07-02 | 2014-06-18 | 杭州华三通信技术有限公司 | Data forwarding device, cable fastener plates and data forwarding method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710837A (en) * | 2004-06-16 | 2005-12-21 | 华为技术有限公司 | Expense message processing apparatus and processing method thereof |
| CN1758583A (en) * | 2004-10-09 | 2006-04-12 | 华为技术有限公司 | Clock, signal multiplex method and system |
| CN1885860A (en) * | 2005-06-24 | 2006-12-27 | 华为技术有限公司 | Single plate interface expanding system and method for expanding single plate interface |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710837A (en) * | 2004-06-16 | 2005-12-21 | 华为技术有限公司 | Expense message processing apparatus and processing method thereof |
| CN1758583A (en) * | 2004-10-09 | 2006-04-12 | 华为技术有限公司 | Clock, signal multiplex method and system |
| CN1885860A (en) * | 2005-06-24 | 2006-12-27 | 华为技术有限公司 | Single plate interface expanding system and method for expanding single plate interface |
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