CN1187724A - Transmitting buffer storage supervisory method and asynchronous transfer schema communication apparatus - Google Patents
Transmitting buffer storage supervisory method and asynchronous transfer schema communication apparatus Download PDFInfo
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Abstract
The invention discloses a management method of sending a buffer memory and an ATM communication device, which is used to solve the problem that when a plurality of sending requests are produced to a connection, sending cannot be realized to other connection. The management method includes the following steps: a buffer memory area used to store the data to be sent temporarily is divided; according to the information involved in logistic connection set with other ATM terminals, the divided areas are distributed to sending the request sources of the connection; judgment is conducted on the sending requests of data sending and if the distributed areas are vacant; according to the judgment result, the data to be sent involved in the sending requests is controlled to be sent to the areas.
Description
Transmission buffer storage management method when the present invention relates to carry out ATM (Asynchronous Transfer Mode) (Asynchronous Transfer Mode) communication and the ATM communicator that adopts this management method to communicate with ATM.
Figure 16 is that the summary that discloses in the SARA chipset technical manual of for example transwitch company (Tran Switch Corporation) ATM cell LSI device, in the past sent the buffer storage management method constitutes block diagram.Among the figure, the 1st, carry out the LSI that cellization is sent then to sending data, the 2nd, the control memory of the various control informations of reference when storage LSI1 sends ATM cell, the 3rd, storage sends the buffer storage of data.
Action to above-mentioned formation is illustrated below.
If being produced data, a certain connection (with the communication line of being set up that is connected of communication counterpart) sends requirement, then send data to buffer storage (being also referred to as transmission buffer) 3 transmission, in control memory 2, prepare to send the traffic class of connection of storage address, transmission of data and communication service parameter etc., LSI1 is sent start to buffer storage 3 transmission.As a result, LSI1 utilizes the storage address of preparing in the control memory 2 to write transmission data in the buffer storage 3, carry out ATM cellization according to the various parameters of preparing in the control memory 2 after, beginning ATM sends.In case the transmission data ATM cellization in the buffer storage 3, and being sent completely of ATM are then stored the zone that sends data in the buffer storage 3 and are discharged.If before this is sent completely, the data that produce other connection send requirement, and then this transmission data are transmitted in the clear area on buffer storage 3, by at this above-mentioned series of steps that sends data, LSI1 is started send.LSI1 carry out ATM cellization to the transmission data of two connections, and after each ATM cell that connects of multiple connection, carries out ATM and send.
Because transmission buffer storage management method in the past constitutes as mentioned above, when for example 1 a large amount of transmission of connection generation being required, the corresponding transmission of this transmission requirement data have taken the buffer storage 3 on the ATM terminal, at this moment, even produce transmission requirement, also will become the state that on buffer storage 3, does not exist this transmission of storage to require the clear area of corresponding transmission data to other connection.Thus, exist, all can not send such problem other connection no matter whether idle at frequency band as atm network.
And, even the transmission data with respect to 1 connection do not have absorb buffer storage 3, when produce from data sending request portion to the data sending request of other connection the time, often also exist in the buffer storage 3 not and should transmissions to ask the required vacant storage of related data volume regional and can not send such problem.
The present invention is for solving above-mentioned problem, its purpose is to obtain a kind of preventing for to the transmission request of 1 connection and take buffer storage, avoid and to connect the state that sends to other, thereby realize the management method and the ATM communicator of the transmission buffer storage that buffer storage effectively uses.
The present invention also aims to obtain a kind of this state of avoiding to send above buffer memory capacity of transmission data, to realize effectively using the transmission buffer storage management method and the ATM communicator of buffer storage again.
And then, the objective of the invention is to obtain a kind of quality that communicates and satisfy the buffer storage management that connects, thereby realize effectively using the transmission buffer storage management method and the ATM communicator of buffer storage.
Again, the objective of the invention is to obtain a kind of automatic cohort that respectively connects, guarantee that communication quality satisfies the buffer storage management that connects, thereby realize transmission buffer storage management method and the ATM communicator that buffer storage effectively uses.
Again, the objective of the invention is to obtain the priority that a kind of utilization is set in the connection with a group, the transmission buffer storage management method and the ATM communicator that can effectively send the high connection of priority.
The objective of the invention is to obtain a kind of can making and sent discarded little transmission buffer storage management method and the ATM communicator of ratio constitute high-level application layer messages by a plurality of transmission data again.
The objective of the invention is to obtain a kind of transmission buffer storage management method and ATM communicator that can guarantee really to the data transmission of the low connection of priority again.
Involved in the present invention connect the management method of the transmission buffer storage of the ATM terminal of carrying out data transmit-receive, comprise following process: send requirement according to data, cut apart the temporary cutting procedure that sends the described transmission buffer storage zone of data by atm network; According to described atm network on the logic set of other ATM terminal room be connected related information, the transmission request source that uses described connection is distributed in the described transmission buffer storage of cutting apart in the described cutting procedure cut zone the zone be connected corresponding process; Judgement is to the transmission request of described transmission data, described zone be connected corresponding process in the whether idle regional idle condition decision process of cut zone of the described transmission buffer storage that distributes; If be judged to be the free time in the described regional idle condition decision process, for other ATM terminal on atm network sends described transmission data, cut zone to the transmission buffer storage of described distribution transmits this transmission data, do not have the free time if in described regional idle condition decision process, be judged to be, then discard the transmission Data Control process of described data sending request control.
Again, the management method of the transmission buffer storage that the present invention relates to also is included in the transmission request source of transmission data and other ATM terminal room on the atm network, obtains the connection sum of this transmission request source connection sum of use when sending and obtains process; In cutting procedure, obtain the connection sum of obtaining in the process according to described connection sum, cut apart transmission buffer storage zone; The zone be connected corresponding process, distribute each zone of cutting apart in the described cutting procedure to the transmission request source of each described transmission data.
Again, the ATM communicator that the present invention relates to comprises: work in the ATM terminal, with atm network on other terminal room set logic and be connected, and connect a plurality of data sending request portion of transmission data by this; The transmission buffer storage of the temporary transmission data from described data sending request portion of management; Described transmission data are divided into the cell of fixed length, and are the data sending part that unit sends with the cell; The connection management portion of the connection of using when management data sends; Cut apart described transmission buffer storage, according to described atm network on the logic set of other ATM terminal room be connected related information, distribute the transmission buffer storage of having cut apart to transmission request, and send the buffer storage management department that finishes to discharge described transmission buffer storage because of the data of described data sending part from described data sending request portion.
Fig. 1 is the formation block diagram of ATM communicator that adopts the transmission buffer storage management method of the embodiment of the invention 1.
Fig. 2 is the flow chart of action of buffer storage management department of the ATM communicator of presentation graphs 1.
Fig. 3 is the formation block diagram of ATM communicator that adopts the transmission buffer storage management method of the embodiment of the invention 2.
Fig. 4 is the flow chart of action of buffer storage management department of the ATM communicator of presentation graphs 3.
Fig. 5 is the formation block diagram of ATM communicator that adopts the transmission buffer storage management method of the present invention the 3rd embodiment.
Fig. 6 is the flow chart that the buffer storage management department of the ATM communicator of presentation graphs 5 moves.
Fig. 7 be Fig. 5 the ATM communicator group admin table the formation key diagram.
Fig. 8 is the flow chart of the transmission buffer storage management method action of expression the present invention the 4th embodiment.
Fig. 9 be Fig. 8 transmission buffer storage management method group admin table the formation key diagram.
Figure 10 is the flow chart of the transmission buffer storage management method action of expression the present invention the 5th embodiment.
Figure 11 be Figure 10 transmission buffer storage management method group admin table the formation key diagram.
Figure 12 is the flow chart of the transmission buffer storage management method action of expression the present invention the 6th embodiment.
Figure 13 is the flow chart of the transmission buffer storage management method action of expression the present invention the 6th embodiment.
Figure 14 is the flow chart of the transmission buffer storage management method action of expression the present invention the 7th embodiment.
Figure 15 is the flow chart of the transmission buffer storage management method action of expression the present invention the 7th embodiment.
Figure 16 is the formation block diagram of ATM communicator that adopts the transmission buffer storage management method of prior art.
Hereinafter, embodiments of the invention are described.Embodiment 1
Fig. 1 is the formation block diagram of ATM communicator that adopts the transmission buffer storage management method of the present invention the 1st embodiment.Among the figure, the 101st, ATM switch, it carries out the ATM cell exchange, and according to the content of the ATM cell stem that receives, the ATM terminal of appointment in network sends ATM cell.The 102nd, the ATM terminal of transmission, reception ATM cell.103-1-103-n is to be that other ATM terminal room on the atm network of n sets that logic is connected and a plurality of data sending request portion by these connection transmission data with total linking number.The 104th, management data sends the connection management portion of the connection of using when the request 103-1-103-n of portion carries out the data transmission.The 105th, evenly cut apart buffer storage 106 with total linking number of connection management portion 104 management, and to sending the buffer storage management department that the request 103-1-103-n of portion distributes the buffer storage of having cut apart.The 106th, keep in buffer storage from the transmission data of data sending part 107.The 107th, ATM terminal 102 is connected to ATM switch 101, and according to each traffic class and communication service parameter that connects of connection management portion 104 notice, after the transmission data that write on the buffer storage 106, carry out ATM cellization, simultaneously these data are sent to the data sending part of atm network.
Below its action is described.
The flow chart of one action example when Fig. 2 is expression buffer storage management department 105 management buffer storages 106.The information of the traffic class of used connection, communication service parameter etc. was by 104 management of connection management portion when each 103-1-103-n of data sending request portion sent.Buffer storage management department 105 obtains total linking number n (step ST1) from connection management portion 104 at first.Then, with total linking number n buffer storage 106 is divided into buffering storage regional 106-1-106-n (step ST2) equably, and distributes this buffering of having cut apart to store regional 106-1-106-n to the 103-1-103-n of data sending request portion correspondingly.
Judged whether data sending request (step ST5) by data sending request portion 103-i (i=1-n), then waited for this request comes if free of data sends request.If data sending request is arranged, then check correspondingly the idle condition (step ST6) that the buffering of the 103-i of the data sending request portion distribution that proposes this transmissions request is stored regional 106-i (i=1-n) at step ST5.If check result, to not having the clear area from the data sending request of the 103-i of this data sending request portion, then discarded this data sending request (step ST9) is waited for request comes once more.Otherwise, if check result has the clear area, then store regional 106-i and send transmission data (step ST7), data sending part 107 is sent start (step ST8) from the 103-i of this data sending request portion to the buffering of the buffer storage 106 that the described data sending request 103-i of portion is distributed.
Data sending part 107 according to traffic class, the communication service parameter set by connection management portion 104, after writing above-mentioned buffering on the buffer storage 106 and storing the transmission data of regional 106-i, carries out ATM cellization and sends to ATM online.Buffer storage management department 105 then discharges storage and stores regional 106-i (step ST4) from the buffering of the buffer storage 106 of the transmission data of the above-mentioned data sending request 103-i of portion as if detecting and judging to send and finish (step ST3).
Like this, divide equally buffer storage 106 on the ATM terminal with the connection sum n that sets, allocate in advance to each 103-1-103-n of data sending request portion, even thereby certain 103-i of data sending request portion produces a large amount of the transmission when asking, the transmission data of this transmission request can not monopolized buffer storage 106 yet, so can receive the transmission request from other data sending request portion.Embodiment 2
Fig. 3 is the formation block diagram of ATM communicator that adopts the transmission buffer storage management method of the present invention the 2nd embodiment.The part identical with Fig. 1 applies prosign and omits repeat specification among Fig. 3.The difference of the ATM communicator of this embodiment 2 and the ATM communicator of the foregoing description 1 is the 103-1-103-n of data sending request portion to be appended the path of storing regional 106-1-106-n capacity by the buffering of buffer storage management department 105 notice distribution.
Below its action is described.
The flow chart of action example when Fig. 4 is expression buffer storage management department 105 management buffer storages 106 only explains the different piece with the action of the buffer storage management method of the foregoing description 1 and the explanation of omitting same action.Buffer storage 106 is divided equally to connect sum by buffer storage management department 105, and after distributing the buffering cut apart to store regional 106-1-106-n to the 103-1-103-n of data sending request portion correspondingly, the buffering of the buffer storage 106 that has distributed to each 103-1-103-n of data sending request portion notice is stored the capacity (step ST11) of regional 106-1-106-n.
At this moment, each 103-1-103-n of data sending request portion is before the beginning real data sends, the buffering that known road distributes is stored the capacity of regional 106-1-106-n, thereby can suppress the transmission data volume that once sends request to storing the capacity of regional 106-1-106-n, thereby can avoid surpassing the buffering of distributing to store the unnecessary transmission data that the data volume of regional 106-1-106-n capacity causes discarded because of request sends less than described buffering.Embodiment 3
Fig. 5 is the formation block diagram of ATM communicator that adopts the transmission buffer storage management method of the present invention the 3rd embodiment.Among Fig. 5, apply prosign and omit repeat specification with Fig. 1 same section.The ATM communicator of present embodiment and the ATM communicator of the foregoing description 1 be not that buffer storage 106 is not with total linking number n to point, but divide equally with total crowd of number m.
Action to present embodiment explains below.
Fig. 6 is the flow chart of an example of buffer storage management department 111 management buffer storages, 106 actions, and the part different with the action shown in Figure 2 of embodiment 1 only is described, and the explanation of omitting same action.Used each setup parameter that connects appends group identification (ID) when each 103-1-103-n of data sending request portion data sends, buffer storage management department 111 obtains additional which crowd ID (step ST21) among each 103-1-103-n of data sending request portion from connection management portion 104, produces group admin table TBL1 (step ST22) shown in Figure 7.Since with group ID identical be connected to same a group, the mode that is connected to distinct group of distinct group ID is managed, so in the example shown in group's admin table TBL1 of Fig. 7, connect 2 and 3 and be taken as the group who belongs to crowd ID2 together, connection 1 and 2 is considered to different groups.Total crowd of number m (step ST23) calculate by this group admin table TBL1 in buffer storage management department 111, evenly cut apart buffer storage 106 (step ST24) with total group's number m, distribute this buffering of cutting apart to store regional 106-1-106-m to each group.
The data sending request (step ST5) that whether has from the 103-i of data sending request portion is judged by buffer storage management department 111, if data sending request arranged, then obtain sending group IDj (j=1-m) (step ST25) under the 103-i of data sending request portion of this data sending request by group's admin table TBL1.The buffering that inspection distributes correspondingly to this group IDj is stored the idle condition (step ST26) of regional 160-j.If storing regional 106-j for the above-mentioned buffering of group IDj does not have the free time, then should send request discarded (step ST9).Otherwise, if buffering storage zone is free not busy, then stores regional 106-j and send transmission data (step ST7) from the above-mentioned data sending request 103-i of portion to the described buffering of buffer storage 106, data sending part 107 is started send (step ST8).
Like this, each connects additional clusters ID, distributes same buffering storage portions to make it shared to additional connection with a group ID, thereby mutual affected possibility is arranged, and the connection that adds distinct group ID is distributed different buffering storage portions respectively, thereby do not have influence mutually.Identical with the network bands subscription scheme of atm network, needs are resembled carry out the network bands branch in advance CBR business (Constant Bit Rate Service) (constant bit rate service) and the VBR business (Variable Bit Rate Service) (variable bit rate service) and be equipped with being connected of ensuring the quality of products, can in 1 connection, set 1 group ID, carry out the buffer storage reservation on the ATM terminal.And, resemble only set the ABR business (Available Bit Rate Service) (available bit rate) PCR (Peak Ceel Rate) (Peak Cell Rate), if the atm network free time then send with PCR, if the crowded good connection of quality that then sends with speed less than PCR, 1 group ID is set in a plurality of connections, buffer storage on the shared ATM terminal, then same with network, buffer storage can use at one's leisure.Embodiment 4
Fig. 8 is the ATM communicator that adopts the transmission buffer storage management method of the present invention the 4th embodiment, the flow chart of an action example of its buffer storage management department 111 management buffer storages 106.In this embodiment 4, only the part different with the action shown in Figure 6 of the foregoing description 3 explained, omit the explanation of same action.Buffer storage management department 111 is obtained the traffic class (step ST31) of each 103-1-103-n of data sending request portion by connection management portion 104.Then, check this traffic class whether CBR or VBR business (step ST32).If this traffic class is CBR or VBR business, then to connecting the new group ID (step ST33) of automatic setting.If this traffic class is not CBR or VBR business but the ABR business then connects the shared group of automatic setting IDK (step ST35) to this.These steps, promptly ST31, ST32, ST33 or ST35 all carry out (step ST34) to all connections, produce the group admin table TBL2 (step ST22) that is shown in Fig. 9.
Like this, the traffic class information of CBR, the VBR that adds when setting by connecting, ABR etc. to the connection of CBR, VBR traffic set, connects 1 group ID of automatic setting to 1; To the connection of ABR traffic set, automatically concentrate and set 1 group ID, carry out the cohort that each connects automatically, thus, can not recognize cohort and use buffer storage on the ATM terminal effectively.Embodiment 5
Figure 10 is the ATM communicator that adopts the transmission buffer storage management method of the present invention the 5th embodiment, the flow chart of action example when its buffer storage management department 111 manages buffer storages 106.The different part of action shown in Fig. 8 with the foregoing description 4 also only is described among this embodiment 5, the explanation of omitting same action.Again, Figure 11 is the key diagram of an example of group admin table TBL3 of embodiment 5 generations, it is the IDK as the group that is connected that is set at a plurality of traffic class ABR business with the difference of the group's admin table TBL2 that is shown in Fig. 9 that the foregoing description 4 produces, in with a group, manage, wherein also set priority.
111 pairs of data sending request from the 103-3 of data sending request portion of buffer storage management department obtain group IDK (step ST25) under the 103-3 of data sending request portion by group's admin table TBL3.Then, check correspondingly the idle condition (step ST26) of the buffer storage 106-k that group IDK is distributed, if the buffer storage 106-k to group IDK has the clear area, then send transmission data (step ST7), data sending part 107 is sent start (step ST8) from the 103-3 of data sending request portion to buffer storage 106-k.
Then, to the data sending request of setting with the 103-5 of data sending request portion of the 103-3 of data sending request portion equal priority, obtain identical with the 103-3 of data sending request portion group IDK (step ST25) by group's admin table TBL3, check correspondingly the idle condition (step ST26) of the buffer storage 106-k that group IDK is distributed.If group IDK is had the clear area, then send transmission data (step ST7) from the 103-5 of data sending request portion to buffer storage 106-k, data sending part 107 is sent start (step ST8).Otherwise, if judge that at step ST26 group IDK is not had the clear area, the priority (step ST41) of the priority of the 103-3 of data sending request portion during then transmission is handled at present by group's admin table TBL3 inspection and the 103-5 of data sending request portion of current transmission request, if priority level is identical, then discarded present data sending request (step ST9).
Data sending request to the 103-6 of data sending request portion that sets the priority higher than the 103-3 of data sending request portion, send the priority of the 103-3 of data sending request portion in handling and the priority (step ST41) of the 103-6 of data sending request portion that this transmission is asked at present by group's admin table TBL3 inspection, the priority height of the 103-6 of data sending request portion, thereby not discarded data sending request from the 103-6 of data sending request portion, directly transmit and send data (step ST7) to buffer storage 106-k.
Like this, to setting priority respectively with the connection in a group, when the buffer storage of distributing to this group, during by the pairing transmission data occupancy of the connection of setting low priority in this group, if data sending request portion has with the pairing data sending request of connection of setting high priority in a group, the pairing transmission data rewriting of connection of then using high priority can directly send thus by the buffer storage of the pairing transmission data occupancy of the connection of low priority.Embodiment 6
Figure 12 and 13 is the ATM communicators that adopt the transmission buffer storage management method of the present invention the 6th embodiment, the flow chart of action example when its buffer storage management department 111 manages buffer storages 106.Only, omit the explanation of same action to explaining with the different piece of the illustrated action of Figure 10 of embodiment 5 in the present embodiment.The data sending request of 103-3 of 111 pairs of data sending request portions of buffer storage management department and 103-5 obtains group IDK (step ST25) under both by group's admin table TBL3.Whether then, judging has clear area (step TS26) in the buffer storage 106-k of this group IDK correspondence, if result of determination is for having, then sends to this buffer storage and respectively sends data (step ST7).As from data sending request with the 103-6 of data sending request portion of the connection 6 of a group IDK, and among this moment buffer storage 106-k during no clear area, comparison priority (step ST41) in group IDK.As a result, when the priority of the data sending request of the 103-6 of data sending request portion is hanged down, discarded this data sending request (step ST9).Otherwise, when priority is high, 103-3 of data sending request portion and 103-5 are checked the data (step ST51) of whether before having crossed buffer storage with the higher transmission data rewriting of priority.
Check result, when 103-3 of data sending request portion and 103-5 had not before all rewritten, the transmission data that send with present request, set the 103-6 of data sending request portion of high priority, to be stored in buffer storage 106-k, rewrite (step ST53, step ST7) from the transmission data of either party's data sending request portion (for example from the 103-3 of data sending request portion transmission data), data sending part 107 is sent starts (step ST8).
Otherwise, when the decision data transmission request 103-5 of portion had before rewritten among the step ST51, use the transmission data rewriting that sends from present requirement, set the 103-6 of data sending request portion of high priority be stored among the buffer storage 106-k, from the transmission data (step ST52, TS7) of the 103-5 of data sending request portion, data sending part 107 is sent starts (step ST8).
For example, when the higher application layer of level is carried out the message transmission, if a message is divided into a plurality of transmission data to be sent, discard even there is one in a plurality of transmission data that constitute a message, then this message is promptly discarded.Discarded transmission data are if relate to a plurality of connections, and then the possibility that goes out of use of a plurality of message of a plurality of connections becomes big.For this reason, rewrite connection previous rewriting once, that set low priority, though the transmission requirement of the low connection of not rewriting of priority treatment priority level initializing.So, even the transmission data bulk of rewriting is identical, also makes it to become and prevent that the transmission data of rewriting from relating to a plurality of connections, thereby be in the state that the transmission of the connection of the setting low priority that effective utilization do not rewrite requires, the transmission data of discarded this connection.
The result, it is out-of-date that 103-3 of data sending request portion and 103-5 did not all rewrite in the past, the situation about being connected that relates to 103-3 of data sending request portion and 103-5 with the transmission data of discarding is compared, what the message of handling in the higher application layer of the level that is made of a plurality of transmission data was discarded is the transmission data of a certain side in above-mentioned two request portions, thereby the discarded ratio of this message can reduce.
Figure 14 and 15 is the ATM communicators that adopt the buffer storage management method of the present invention the 7th embodiment, the flow chart of action example when its buffer storage management department 111 manages buffer storages 106.Only the part inequality to the action shown in Figure 12 and 13 of present embodiment and embodiment 6 explains, and omits the explanation of same action.
When buffer storage management department 111, at step ST52 or ST53, by transmission data from data sending request portion to connecting with higher priority among a group ID, rewriting be stored among the buffer storage 106-k, when sending the transmission data of request portion, notice buffer storage 106-k deposits the data sending request portion that sends data of rewriting, and rewrites and sends the data volume (step ST61) that does not send as yet in the data.Thereby. the data volume of having rewritten but not sent as yet can be learnt by this data sending request portion, and can be sent next time by the transmission data of interrupting because of the rewriting action.
ST2, ST24 in the explanation of embodiment 1 to embodiment 7 are cutting procedures.And ST11 is the corresponding process of zone, connection.ST5, ST6 or ST26 are regional idle condition decision processes.ST7-ST9 sends the Data Control process.ST1 or ST23 connect sum to obtain process.
In sum, according to the present invention, the zone of the buffer storage that the transmission data that data sending request relates to are temporary is cut apart by cutting procedure; According to atm network on the logic set of other ATM terminal room connect relevant information, the zone be connected corresponding process, use the distribution in the zone that the pairing cutting procedure of transmission request source of above-mentioned connection cut apart; Judge sending the transmission request of data in regional idle condition decision process, whether idle by above-mentioned zone with the above-mentioned zone that is connected the corresponding process distribution; Result of determination according to above-mentioned zone idle condition decision process, if regional idle condition decision process is judged to be the free time, then above-mentioned zone is transmitted data, so that in sending the Data Control process, other ATM terminal on atm network sends the related transmission data of request; If regional idle condition decision process is judged to be and does not have the free time, then in above-mentioned transmission Data Control process, the discarded transmission asked, and waits for occurring sending request once more.Because above-mentioned formation of the present invention can not avoided and can not have been connected situation about sending to other, thereby have the effect that can use buffer storage effectively for 1 connection request being sent and taking buffer storage.
Again,, obtain in the process connecting sum according to the present invention, obtain with atm network on other ATM terminal room transmission request source of sending data use when sending be connected sum; Obtain the connection sum of obtaining in the process according to above-mentioned connection sum, the zone of the buffer storage that the transmission data that partition data transmission request relates in cutting procedure are temporary; The zone be connected corresponding process, transmission request source of each transmission data is distributed each zone of cutting apart in the above-mentioned cutting procedure.Because above-mentioned formation, the transmission data that the request of transmission relates to, be limited to the zone be connected corresponding process in transmit in the transmission request source assigned region that the transmission request of using this connection is sent, therefore can not take buffer storage for 1 connection request is sent, thereby avoid and to connect situation about sending to other, have the effect that effectively to use buffer storage.
Again, according to the present invention, cut apart buffer storage, the transmission request that data sending request portion is come distributes the above-mentioned buffer storage of cutting apart, and according to atm network on the logic set of other ATM terminal room connect relevant information, buffer storage management department distributes the buffering storage zone of having cut apart to the transmission request from data sending request portion.Because above-mentioned formation, can be for 1 connection request not being sent and take buffer storage, thus avoided and can not connect situation about sending other, have buffer storage zone by above-mentioned distribution, can effectively use the effect of buffer storage.
Claims (3)
1. one kind connects the management method of the transmission buffer storage of the ATM terminal carry out data transmit-receive by atm network, it is characterized in that comprising following process:
Send requirement according to data, cut apart the temporary cutting procedure that sends the described transmission buffer storage zone of data;
According to described atm network on the logic set of other ATM terminal room be connected related information, the transmission request source that uses described connection is distributed in the described transmission buffer storage of cutting apart in the described cutting procedure cut zone the zone be connected corresponding process;
Judgement is to the transmission request of described transmission data, described zone be connected corresponding process in the whether idle regional idle condition decision process of cut zone of the described transmission buffer storage that distributes;
If be judged to be the free time in the described regional idle condition decision process, for other ATM terminal on atm network sends described transmission data, cut zone to the transmission buffer storage of described distribution transmits this transmission data, do not have the free time if in described regional idle condition decision process, be judged to be, then discard the transmission Data Control process of described data sending request control.
2. the management method of transmission buffer storage as claimed in claim 1, it is characterized in that, also be included in the transmission request source of transmission data and other ATM terminal room on the atm network, obtain the connection sum of this transmission request source connection sum of use when sending and obtain process; In cutting procedure, obtain the connection sum of obtaining in the process according to described connection sum, cut apart transmission buffer storage zone; The zone be connected corresponding process, distribute each zone of cutting apart in the described cutting procedure to the transmission request source of each described transmission data.
3. ATM communicator is characterized in that comprising:
Work in the ATM terminal, with atm network on other terminal room set logic and be connected, and connect a plurality of transmission request portion of transmission data by this;
The transmission buffer storage of temporary transmission data from described data sending request portion;
Described transmission data are divided into the cell of fixed length, and are the data sending part that unit sends with the cell;
The connection management portion of the connection of using when management data sends;
Cut apart described transmission buffer storage, according to described atm network on the logic set of other ATM terminal room be connected related information, distribute the transmission buffer storage of having cut apart to transmission request, and send the buffer storage management department that finishes to discharge described transmission buffer storage because of the data of described data sending part from described data sending request portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP003142/1997 | 1997-01-10 | ||
| JP003142/97 | 1997-01-10 | ||
| JP31429797A JPH11128033A (en) | 1997-01-10 | 1997-10-30 | Commodity display stand |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02122815A Division CN1388681A (en) | 1997-01-10 | 2002-06-06 | Method for transmitting buffer store management and asynchronous transmission mode communication apparatus |
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| CN1187724A true CN1187724A (en) | 1998-07-15 |
| CN1103154C CN1103154C (en) | 2003-03-12 |
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| CN 97119324 Expired - Fee Related CN1103154C (en) | 1997-01-10 | 1997-09-29 | Transmitting buffer storage supervisory method and asynchronous transfer schema communication apparatus |
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| JP (1) | JPH11128033A (en) |
| CN (1) | CN1103154C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100380868C (en) * | 2002-03-22 | 2008-04-09 | 兄弟工业株式会社 | Network management systm, appts. need to be managed, managing device and program thereof |
| US7869935B2 (en) | 2006-03-23 | 2011-01-11 | Agilent Technologies, Inc. | Method and system for detecting traffic information |
| CN104200579A (en) * | 2014-08-18 | 2014-12-10 | 中国建设银行股份有限公司 | Method and device for managing self-service equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2618702B1 (en) | 2010-09-20 | 2015-05-06 | IFCO Systems GmbH | Box, stand, system, and method for presenting products |
-
1997
- 1997-09-29 CN CN 97119324 patent/CN1103154C/en not_active Expired - Fee Related
- 1997-10-30 JP JP31429797A patent/JPH11128033A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100380868C (en) * | 2002-03-22 | 2008-04-09 | 兄弟工业株式会社 | Network management systm, appts. need to be managed, managing device and program thereof |
| US7869935B2 (en) | 2006-03-23 | 2011-01-11 | Agilent Technologies, Inc. | Method and system for detecting traffic information |
| CN104200579A (en) * | 2014-08-18 | 2014-12-10 | 中国建设银行股份有限公司 | Method and device for managing self-service equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1103154C (en) | 2003-03-12 |
| JPH11128033A (en) | 1999-05-18 |
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