CN201584987U - General frame converging device - Google Patents
General frame converging device Download PDFInfo
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- CN201584987U CN201584987U CN200920289334XU CN200920289334U CN201584987U CN 201584987 U CN201584987 U CN 201584987U CN 200920289334X U CN200920289334X U CN 200920289334XU CN 200920289334 U CN200920289334 U CN 200920289334U CN 201584987 U CN201584987 U CN 201584987U
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Abstract
The utility model discloses a general frame converging device which belongs to the field of computer network communication device. The general frame converging device provided by the utility model at least includes a data buffer used for providing data for users, a timer used for providing a timing signal for each apparatus, a processor used for realizing user data to complete tasks in the device and a supervisor connected with all the apparatus in a bus way; and the processor is provided with a statistics part used for statistics, analysis and predicating, and a multiple connection part used for multiple connection of frames. The general frame converging device provided by the utility model can conveniently and reliably separating user data mutually when converging user data like Ethernet, and does not need the VLAN processing of a switch; the user quantity converged by the general frame converging device is not limited by the quantity of VLAN and can be any number; when the user data like Ethernet is multiply connected, the address search on a known switch is not needed, which can improve the forwarding efficiency and reduce the time delay of forwarding.
Description
Technical field
The utility model relates to a kind of convergence device, is specifically related to a kind of interchangeable frame of interchangeable frame multiple connection scheme of realizing and assembles fully, is called MUXE/DMUXE equipment, belongs to the computer network communication apparatus field.
Background technology
The characteristics of the data network of mechanisms such as school, enterprise, government are, 80% flow is in the internal network exchange of mechanism, and 20% will flow out internal network, and known Ethernet switch is well suited for this applicable cases.But, many applicable cases are arranged, just not too reasonable with Ethernet switch or router, as, the data network of residential quarter, resident's purpose is online, last Internet (Internet), so 80% above flow all is that network flows out and flows to internally, inner less data exchange; And also do not want between the resident directly to show up at internal network.For this reason, Ethernet switch also is necessary for it VLAN is set, and Ethernet switch VLAN quantity is very limited, often can not satisfy the demands.
Above said is the situation of local network, and metropolitan area network also has similar situation.As, important mechanism such as bank, the tax, government, army are arranged on A ground, its corresponding mechanism is arranged on B ground, between A ground and the B ground link is arranged, utilize this link, form the private network of above-mentioned important mechanism, known, method commonly used is on A ground and B ground Ethernet switch (or adding router again) to be set respectively.At this Ethernet switch or router purpose originally being set is that the Ethernet data of each mechanism is assembled, rather than exchange or do route, but the intrinsic exchange of Ethernet switch or router or make routing function and do not change.
Because the restriction of known switch VLAN quantity, the number of users that known switch can be assembled can not be above 4096; Known switch is in assembling processing, and necessary inquire address database will expend time in.
Summary of the invention
For solving the above-mentioned problems in the prior art, the utility model provides a kind of interchangeable frame convergence device, be provided with statistics parts that are used for statistical analysis and prediction and the multiple connection parts that are used for the frame multiple connection in the processor that the realization user data is finished the work in equipment, the formation (Queue), scheduling (Schedule), exchange (Switch), generation tree (STP) and the virtual local network that replace in the known switch are handled (Vlan) parts, not only be used to assemble Ethernet, can also be used to assemble interchangeable frames such as GFP, LAPS and HDLC.
The technical scheme that its technical problem that solves the utility model adopts is as follows: this interchangeable frame convergence device be included as user data at least and provide the data buffer of buffering (buffer), for each parts provide timing signal timer (TimingControl), realize user data processor of in equipment, finishing the work and the manager (Manager) that links to each other with all parts with bus mode, be provided with in the processor and be used for the subdivision relay part (MUX/DMUX) that subdivision frame by frame connects, and be provided with the statistics parts (Statistic) that parameter prediction is provided for the data tap.
Described timer comprises the up timer and two kinds of the descending timers that is used for tap that is used for multiple connection.
Described statistics parts are made up of input unit, output unit and enforcement unit.
Also comprise in the described processor being used for descending address processor, be used for the Frame Handler that identifies end to end of process frames of data and filter filtering treater unconventional and the invalid data frame.
The general convergence frame equipment that adopts the utility model to provide, when user data such as convergence Ethernet, can easily and very reliably they be isolated mutually, do not need the VLAN of switch to handle, the number of users that can assemble is not subjected to the restriction of VLAN quantity, and the number of users that can assemble can be an any amount; When user data such as multiple connection Ethernet, do not need the address lookup of known switch, can improve forward efficiency, reduce and transmit time delay.
Description of drawings
Fig. 1 is the structural representation that known switch is assembled Ethernet.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
Assemble the employing queue unit in the known switch (shown in Figure 1), scheduling unit, crosspoint and the realization of virtual local network processing unit parts such as (being Vlan) in order to realize user data.The interchangeable frame convergence device (shown in Figure 2) that the utility model provides be included as user data at least and provide the data buffer of buffering (Buffer), for each parts provide timing signal timer (Timing Control), realize user data processor of in equipment, finishing the work and the manager (Manager) that links to each other with all parts with bus mode, be provided with in the processor and be used for the subdivision relay part (MUX/DMUX) that subdivision frame by frame connects, and be provided with to the data subdivision connects the statistics of parameter prediction parts (Statistic) are provided.The statistics parts carry out statistics and analysis to the frame length and the flow of data frame, and then according to user's the authority and the classification of user data, the multiple connection parameter are carried out real-time prediction, and statistics parts (Statistic) are made up of input unit, output unit and enforcement unit.Input unit comprises three assemblies, that is, and and data inputs (DATA IN), configuration parameter input (CFG IN) and spatial margin input unit (BFSPC IN).Wherein data inputs (DATA IN) are connected with data buffer (Buffer), are to treat that the user data of multiple connection enters the inlet of statistics parts (Statistic); Configuration parameter input (CFG IN) is connected with manager (Manager), is the inlet that configuration parameter enters statistics parts (Statistic); Spatial margin input (BFSPCIN) is connected with data buffer (Buffer), is the inlet that the spatial margin signal enters statistics parts (Statistic).Output unit (FCST OUT) is the delivery outlet that predicts the outcome.Implement the unit and comprise five assemblies, be i.e. type statistics unit (FTS), length statistic unit (FLS), traffic statistics unit (FSS), period generation unit (TG) and analyses and prediction unit (FANL).Type statistics unit (FTS), length statistic unit (FLS), traffic statistics unit (FSS) three assembly concurrent workings realize the real-time statistics of type, length and flow respectively.Their input all is connected with data inputs (DATA IN), configuration parameter input (CFG IN), and their output all is connected with analyses and prediction unit (FAN L).Analyses and prediction unit (FANL) also is connected with spatial margin input unit (BFSPC IN), and analyses and prediction unit (FANL) realizes analyzing and prediction.Period generation unit (TG) is connected segment signal when providing for them with type statistics unit (FTS), length statistic unit (FLS), traffic statistics unit (FSS) and analyses and prediction unit (FANL) respectively.Subdivision relay part (MUX/DMUX) is followed the tracks of the real-time estimate of statistics parts, realizes that the variable length subdivision connects.The frame Multi-connection unit is the first in first out processing unit, towards the rate processing unit, towards bandwidth processing unit and decision package.Also comprise in the processor being used for descending address processor, be used for the Frame Handler that identifies end to end of process frames of data and filter filtering treater unconventional and the invalid data frame.Timer comprises the up timer and two kinds of the descending timers that is used for tap that is used for multiple connection.
Multiple connection parts (MUX) are made of four class components:
The first kind is an input unit, comprises three assemblies, i.e. data inputs (DATA IN), configuration parameter input (CFG IN), the input that predicts the outcome (FCST IN).
Data input cell (DATA IN) is connected with data buffer (Buffer), is to treat that the user data of multiple connection enters the inlet of multiple connection parts (MUX); Configuration parameter input unit (CFG IN) is connected with manager (Manager), is the inlet that configuration parameter enters MUX.The input unit (FCST IN) that predicts the outcome is connected with the output unit (FCSTOUT) of statistics parts, by what statistics parts (Statistic) were made predicting the outcome of next period is entered multiple connection parts (MUX) thus.
Second class is that data output unit (DATA OUT) is connected with up timer, and the data that multiple connection is good are delivered to up Ethernet Transmit-Receive Unit by data outputs (DATA OUT), export from this equipment then.
The 3rd class is a base unit, comprises address information element (BFAM), length generation unit (TG).
To behind the refreshing of the location of the data in the data buffer (Buffer), (Buffer) obtains being received the spatial orientation information that data newly account for from data buffer, and the spatial orientation information of being released by multiple connection parts (MUX) multiple connection data to data buffer (Buffer) circular; Period generation unit (TG) respectively with the first in first out processing unit, towards the rate processing unit, segment signal when providing for them is provided with decision package towards the bandwidth processing unit.
The 4th class is to implement the unit, comprises four assemblies, promptly the first in first out processing unit, towards the rate processing unit, towards bandwidth processing unit and decision package.First in first out processing unit, three assembly concurrent workings towards the rate processing unit, towards the bandwidth processing unit realize first in first out respectively, towards speed and bandwidth oriented processing.Their input all is connected with prediction input unit (FCST IN) with configuration parameter input (CFG IN), and their output all is connected with decision package.Decision package (Policy) also is connected with address information element (BFAM) with data inputs (DATA IN), data outputs (DATA OUT).Decision package (Policy) will be imported data and do the ordering decision-making, implement variable length and handle, and finally finish multiple connection frame by frame.The data that multiple connection is handled well are delivered to up Ethernet Transmit-Receive Unit by the control of data output unit with it, export from this equipment then.
Manager (Manager) is connected with all parts of equipment with bus mode, for each parts provides configuration parameter, extracts state information, coordinates computing therebetween.
User data can be by the direct access arrangement of a plurality of user data frame receiver/transmitters of equipment.If the remote subscriber, its data tend to by Synchronous Digital Hierarchy (SDH Access Network) access arrangement.User data from the SDH Access Network, through SDH low-order pointer processor, SDH mapping circuit and fast processor of sign indicating number and SDH low order container loads processor, realize the reception of remote subscriber's data, the more a plurality of user data frame receiver/transmitter access arrangements by equipment (among Fig. 2 shown in the dotted line).
The user data access arrangement, by filtering treater (Filter), according to set condition, detect its validity, filter out underproof or illegal data, valid data are put into data buffer (Buffer) by the time sequencing that arrives, then, add up, analyze and predict by the utility model parts Statistic of this equipment.Add up the flow of each user data with the Statistic parts,, provide alarm, implement flow control if exceed default thresholding; After the flow control,, then it is abandoned, send report to network management unit Manager simultaneously if also exceed default thresholding.The Statistic parts are added up the type of each user data and its frame length, and classify.The scheme of classification is provided with by network management unit Manager.If be not provided with, then type is divided three classes, i.e. network management data, high priority user data or time-delay sensitive data, low priority user data or non-time-delay sensitive data.Frame length also is divided three classes: less than 128 words, greater than 2048 words and be in frame length between them.
Statistics parts (Statistic) are the surplus of Monitoring Data buffer (Buffer) also, when surplus is sent signal to subdivision relay part (MUX/DMUX) during less than default thresholding.Statistics parts (Statistic) are to continuous, above-mentioned each statistic and the increment thereof of three adjacent periods compute weighted, and the weight size is by manager (Manager) configuration, behind the ranking operation and then obtain its average and variance, on this basis, make the prediction of next period.
At last, multiple connection parts (MUX) predict the outcome according to statistics parts (Statistic), by data inputs (DATA IN) user data in the data buffer (Buffer) is carried out the frame multiple connection of variable length, control it by data outputs (DATA OUT) again and send.
Entire frame multiple connection process is called up processing direction in the industry.In another direction, implement the process of tap, just the downlink processing process is the inverse process of multiple connection.With the multiple connection process roughly the same, after receiving descending user data, filter in advance, add up, analyze and predict by statistics parts (Statistic) again, again by a minute relay part (DMUX) predicting the outcome according to statistics parts (Statistic), according to address processor (Table), the downlink data after filtering is carried out the variable length tap.Above-mentioned both direction, i.e. the processing of uplink and downlink, multiple connection just and tap also are collectively referred to as multiple connection with them in the industry.
Alleged " parts " in the literary composition, in the field of business being also referred to as " assembly ", " member ", " processing unit ", " processing module " etc.
Claims (4)
1. interchangeable frame convergence device, at least be included as user data the data buffer of buffering be provided, provide timer, realization the user data processor of in equipment, finishing the work and the manager that links to each other with all parts with bus mode of timing signal for each parts, it is characterized in that: be provided with in the processor and be used for the subdivision relay part that subdivision frame by frame connects, and be provided with to the data subdivision connects the statistics of parameter prediction parts are provided.
2. interchangeable frame convergence device according to claim 1 is characterized in that: timer comprises the up timer and two kinds of the descending timers that is used for tap that is used for multiple connection.
3. interchangeable frame convergence device according to claim 1 is characterized in that: the statistics parts comprise input unit, output unit and enforcement unit composition.
4. interchangeable frame convergence device according to claim 1 is characterized in that: also comprise in the processor being used for descending address processor, be used for the Frame Handler that identifies end to end of process frames of data and filter filtering treater unconventional and the invalid data frame.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107770101A (en) * | 2016-08-15 | 2018-03-06 | 南京中兴新软件有限责任公司 | The method for packing and device of Generic Framing Procedure gfp frame in a kind of FPGA |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107770101A (en) * | 2016-08-15 | 2018-03-06 | 南京中兴新软件有限责任公司 | The method for packing and device of Generic Framing Procedure gfp frame in a kind of FPGA |
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| C14 | Grant of patent or utility model | ||
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Address after: 332000 No. 1010 Anping Road, eco industrial city, Mount Lu District, Jiangxi, Jiujiang Patentee after: SHANXI SHANSHUI OPTOELECTRONIC TECHNOLOGY CO., LTD. Address before: 332000 No. 1010 Anping Road, eco industrial park, Mount Lu District, Jiangxi, Jiujiang Patentee before: Jiangxi Shanshui Optoelectronics Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20171218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |