CN101022422A - Data packet processing method and network device using the same method - Google Patents
Data packet processing method and network device using the same method Download PDFInfo
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- CN101022422A CN101022422A CNA2007100889932A CN200710088993A CN101022422A CN 101022422 A CN101022422 A CN 101022422A CN A2007100889932 A CNA2007100889932 A CN A2007100889932A CN 200710088993 A CN200710088993 A CN 200710088993A CN 101022422 A CN101022422 A CN 101022422A
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Abstract
A method for processing data packet includes defining buffer to be the first and the second resource states, using the first resource state (TFRS) to present that buffer residual space is greater than the first residual space critical value and using the second resource state (TSRS) to present that buffer residual space is less than the first residual space critical value, registering the first type of data packed into buffer if data packet is the first type and buffer is on TFRS and forbidding to register the first type of data packet into buffer if data packet is first type but buffer is on TSRS. The network device utilizing said method is also disclosed.
Description
Technical field
The present invention relates to a kind of data package processing method, particularly be applied to a kind of data package processing method between the packet that network equipment and its received.
Background technology
As shown in Figure 1, it is a LAN 1 configuration diagram.We can find out clearly that this LAN 1 is mainly by having a plurality of workstation1s 01,102,103,104,105 and a hub 10 to be constituted from figure, wherein, this work station can be a personal computer or a main frame server, when each workstation1 01,102,103,104,105 and this hub 10 finish be connected after, Data transmission that just can be mutual between each work station.Yet hub is to belong to ground floor (Layer1) grade products, be that the grid line circuit that is connected on the hub is linked together purely, the function of assuring reason is not provided, a work station will pass data, as long as the work station that is connected on this hub all can be received, therefore multicomputer is connected in the same hub more, and network bandwidth speed is just slow more.
So, develop and a kind of switch hub (Switch Hub), it is to belong to the second layer (Layer2) grade products, except being connected on grid line circuit on the switch hub links together, can also bag filter, judge that bag is to deliver to that work station, can not send all and waste network bandwidth speed, but be only limited in the same network segment (same " network " position), the computer of different segment, switch hub can't be done connection.Exchange so this switch hub (Switch Hub) can allow the multi-section work station to carry out data simultaneously, make that the transfer speed of data between each work station promotes greatly.
See also Fig. 2 (a), it is a switch hub (Switch Hub) 2 inner member function block schematic diagrams.We can find out clearly that this switch hub 2 is connected with one first work station 201 and one second work station 202 from figure, this switch hub 2 consists predominantly of a controlled processing unit 20, one exchange component 21, one buffer 22 and a memory cell 23, when a packet is sent in these first work station, 201 tendencies to develop to this second work station 202, at first, this controlled processing unit 20 is stored this received packet in this memory cell 23 a packet classification table (classifyingtable) 232 carries out in this packet content about the inspection of the second layer to layer 7 content (L2-L7 content), shown in Fig. 2 (b), the different second layers to layer 7 content (L2-L7 content) can correspond to different action (action), in order to sort out different classes of packet, and the action that this controlled processing unit 20 just can correspond in response to the packet of all categories that defines in this packet classification table 232, and then control the subsequent action that different classes of packet will carry out, for example: can carry out one of passback (retransmit) action again and transmit control protocol (Transmission Control Protocol, hereinafter to be referred as TCP) class packet (for example e-mail data bag) or need not carry out again user's data pack protocol (User Datagram Protocol of passback (retransmit) action, hereinafter to be referred as UDP) class packet (for example real-time video/packets of audio data), the topmost difference of packet of these two kinds different classification are when the depositing that the space is used up of this buffer 22 and the packet that all were imported afterwards can't enter this buffer 22 time, the TCP class packet that can carry out again passback (retransmit) can send a return path signal again by this controlled processing unit 20 and 21 pairs of these first work stations 201 of this exchange component, can correctly be received in order to guarantee data.But under similar circumstances, UDP class packet then can directly be dropped and not notify the transmission end to carry out passback (retransmit) action again because of entering in this buffer 22.
And above-mentioned classification this packet later just can be deposited earlier to this buffer 22 medium waiting and transmits, this controlled processing unit 20 just can be according to 231 pairs of address translation tables of being stored in this memory cell 23 target location (for example being to be sent to this second work station 202) that this packet will transmit of breaking forth, this exchange component 21 just can be sent to this packet on the path of appointment (for example being on the path of this second work station 202) at last, and then finishes the work of whole data passes.
Yet, under the situation of these buffer 22 resource-constraineds that this switch hub 2 is comprised, above-mentioned mentioning when this buffer 22 resources are used up, all packets that were sent to afterwards in this switch hub 2 will directly be dropped, and the packet that can carry out passback action again can return after being dropped again, but the real-time packet that can't carry out passback again then will permanently be lost, give an example, a LAN of ongoing video conference, because the picture and the sound of video conference all belong to real-time (real time), that is to say video/audio data wrap in transmission during can not have the situation of interruption to take place, therefore, if in this LAN, have a lot of packets transmitting with the time, and this buffer 22 all can unconditionally receive for packet of different nature, cause very fast being used up of these buffer 22 resources, at this moment, belong to the video/audio data that can't carry out again the passback action wrap in can't enter in this buffer 22 after, to directly be filtered, then ongoing video conference will take place because of the view data of the real-time that is received to interrupt and the freeze-frame of generation picture on this LAN, phenomenons such as sound delay time, thus, will seriously influence the quality and the real-time (real time) of transfer of data, therefore, how to improve at this disappearance, be development topmost purpose of the present invention.
Summary of the invention
The present invention is a kind of data package processing method, be applied between the packet that network equipment and its received, described network equipment includes a buffer, described method comprises the following step: one first buffer resources state and the one second buffer resources state of at first setting described buffer, wherein, the remaining space of the described buffer of the described second buffer resources state representation does not reach the described first remaining space critical value to the remaining space of the described buffer of the described first buffer resources state representation greater than one first remaining space critical value, next is inspected the content of described packet and deposits to described buffer with the classification under judging, if described packet is that a primary sources bag and described buffer are in the described first buffer resources state, described primary sources bag is deposited with described buffer, if described packet is that described primary sources bag and described buffer are in the described second buffer resources state, then forbid described primary sources bag is deposited with described buffer, wherein whether deposit described primary sources bag then fully by described first buffer resources state and the decision of the described second buffer resources state.
Another preferred embodiment way of the present invention, be a kind of network equipment and comprise a buffer, it can be deposited described packet and be set to the one first buffer resources state that is in and one second buffer resources state, wherein, the remaining space of remaining space described buffer of the described second buffer resources state representation greater than one first remaining space critical value of the described buffer of the described first buffer resources state representation is greater than one second remaining space critical value, an and processing data packets unit, signal is connected in described buffer, its content that can receive described packet and inspect described packet is with the classification under judging, if described packet is that a primary sources bag and described buffer are in the described first buffer resources state, described primary sources bag is deposited with described buffer, if described packet is that described primary sources bag and described buffer are in the described second buffer resources state, then forbid described primary sources bag is deposited with described buffer, wherein, it is then different by the decision of the described first remaining space critical value and the described second remaining space critical value and the described first remaining space critical value and the described second remaining space critical value fully whether to deposit described primary sources bag.
The another preferred embodiment way of the present invention, it is a kind of data package processing method, be applied between the packet that network equipment and its received, described network equipment includes a buffer, described method is as follows: in response to described packet is that described primary sources bag and described buffer are in one first buffer resources state, described primary sources bag is carried out one first handle and be that described primary sources bag and described buffer are in the described second buffer resources state, described primary sources bag is carried out one second handle in response to described packet.
Description of drawings
The present invention must be by following accompanying drawing and explanation, in order to do a more deep understanding:
Fig. 1 shows a LAN configuration diagram.
Fig. 2 (a) shows a switch hub inner member function block schematic diagram.
Fig. 2 (b) shows this packet classification table content schematic diagram.
Fig. 3 (a) shows the present invention to be improved the prior art means to develop a network equipment function block schematic diagram that preferred embodiment.
Fig. 3 (b) shows this packet classification table content schematic diagram that this processing data packets unit is comprised.
Fig. 4 shows the present invention to be improved the prior art means to develop a data package processing method schematic flow sheet that preferred embodiment.
The reference numeral explanation
LAN 1
Workstation1 01,102,103,104,105
First work station, 201 second work stations 202
Controlled processing unit 20 exchange components 21
Address translation table 231 packet classification tables 232
Switch hub 3 buffers 30
Processing data packets unit 31 exchange components 32
Packet classification table 310 controller 311
Address translation table 312 first work stations 3001
Embodiment
See also Fig. 3 (a), its be the present invention be improve the prior art means develop preferred embodiment network equipment function block schematic diagram, and in the present embodiment this network equipment we be to be that example is carried out following explanation with a switch hub 3, and in this example, this switch hub 3 is identical with prior art mainly to be to be applied between one first work station 3001 and one second work station 3002.We can find out clearly that this switch hub 3 of the present invention consists predominantly of a buffer 30 from figure, an one processing data packets unit 31 and an exchange component 32, wherein, this buffer 30 can be deposited a packet that is sent by this first work station 3001, and this buffer 30 can be set to the one first buffer resources state that is in and one second buffer resources state or one the 3rd buffer resources state and one the 4th buffer resources state, 32 of this exchange components can be sent to this packet this second work station 3002, and topmost these processing data packets unit 31 signals that are characterised in that of the present invention are connected in this buffer 30, it can receive this packet and judge that this packet is a primary sources bag or a secondary sources bag, this processing data packets unit 31 is in this first buffer resources state in response to this packet for this primary sources bag and this buffer 30, then this primary sources bag is deposited at this buffer 30, be in the 3rd buffer resources state in response to this packet for this secondary sources bag and this buffer 30, then this secondary sources bag be deposited at this buffer 30.Below more just the technological means of the present invention's first preferred embodiments be further described.
This processing data packets unit 31 that this switch hub 3 of preferred embodiment of the present invention is comprised consists predominantly of a packet classification table 310, one controller 311 and an address translation table 312, wherein this packet classification table 310 can be judged that this packet is this primary sources bag or this secondary sources bag and judge that this primary sources bag or this secondary sources wrap in performed action under the different buffer resources states, shown in Fig. 3 (b), this packet classification table 310 can be after this processing data packets unit 31 receives this packet, the second layer of comparing this packet is to layer 7 content (Layer2-Layercontent), and then judge that this packet is this primary sources bag (second layer as shown in FIG. is to layer 7 content 0) or this secondary sources bag (second layer as shown in FIG. is to layer 7 content 1), and feature of the present invention is exactly to judge then that the packet of this classification is at different buffer money state (resource statuss 0 as shown in FIG. at the second layer of having compared this packet to layer 7 content (L2-L7content), resource status 1, resource status 2 or resource status 3) to carry out the action (action 0 as shown in FIG. of depositing or not depositing down, action 1, the action 2 or move 3), and these controller 311 signals are connected in this packet classification table 310 and this buffer 30, when this packet is in this first buffer resources state (resource status 0 as shown in the figure) for this primary sources bag and this buffer 30, this controller 311 just can send one first control signal and control this primary sources bag and can be deposited in this buffer 30, on the contrary, when if this buffer 30 is in this second buffer resources state (resource status 1 as shown in the figure), this controller 311 sends this first control signal and controls this primary sources bag and can not be deposited with in this buffer 30, and when this packet is this secondary sources bag, and through judging that this buffer 30 is in the 3rd buffer resources state (resource status 2 as shown in the figure), this controller 311 just can send one second control signal and control this secondary sources bag and be deposited with in this buffer 30, in like manner, when if this buffer 30 is in the 4th buffer resources state (resource status 3 as shown in the figure), this controller 311 sends this second control signal and controls this secondary sources bag and can not be deposited in this buffer 30, in addition, finish above-mentioned judgement action back when being deposited with packet in this buffer 30 and will transmitting, this controller 311 just can be compared the packet and this address translation table 312 that are deposited with in this buffer 30, and then the control data bag is sent to the address (as shown in FIG. this second work station 3002) that will arrive.And above-described this primary sources bag is user's data pack protocol class packet (UDP), this secondary sources bag is one to transmit control protocol class packet (TCP), and these buffer 30 residing these first buffer resources states, this second buffer resources state, the 3rd buffer resources state and the 4th buffer resources state are meant the space is reached a different threshold value respectively by access capability the state of depositing in this buffer 30.
Described as prior art, in existing technological means, when packet enters into existing switch hub, packet is classified by the packet classification table after the judgement, no matter packet is to belong to user's data pack protocol class packet (UDP) that can not return (retransmit) again or the transmission control protocol class packet (TCP) that can return (retransmit) again, all will directly be deposited with in the buffer, thus, the capacity of buffer at short notice will be very fast taken, and under the situation that buffer capacity is used up, belong to and permanently to lose after user's data pack protocol class packet (UDP) that can not return again is dropped, and seriously influence the quality that real time data transmits.
Therefore, the present invention is exactly one first buffer resources state, one second buffer resources state, the 3rd buffer resources state and one the 4th buffer resources state (resource status 0, resource status 1, resource status 2 and resource status 3 as shown in Fig. 3 (b)) that needs to set earlier buffer 30 in these switch hub 3 topmost features described in the preferred embodiment, wherein, the remaining space of this this buffer 30 of first buffer resources state representation is greater than one first remaining space critical value; The remaining space of this this buffer 30 of second buffer resources state representation does not reach the first remaining space critical value; The remaining space of the 3rd this buffer 30 of buffer resources state representation is greater than one second remaining space critical value; And the remaining space of the 4th this buffer 30 of buffer resources state representation does not reach one second remaining space critical value, whether deposits the primary sources bag again then fully by described first buffer resources state and the decision of the described second buffer resources state; Whether deposit the secondary sources bag then fully by described the 3rd buffer resources state and the decision of described the 4th buffer resources state.
So judging this packet when this packet classification table 310 is that primary sources bag such as user's data pack protocol class packet (UDP) or secondary sources bag are as after transmitting control protocol class packet (TCP), this controller 311 just can be stranded should buffer 30 the behaviour in service of depositing spatial content control this transmission control protocol class packet (TCP) that can carry out passback (retransmit) again and whether can be deposited with in this buffer 30, for example: suppose that the first remaining space critical value is that the 10% and second remaining space critical value is 50%, just when this buffer 30 deposit the space by the capacity of access surpassed all told 50% but do not reach 90% (meaning i.e. this primary sources bag is in this first buffer resources state and this secondary sources bag is in the 4th buffer resources state) of all told, at this moment, in order to ensure this user's data pack protocol class packet (UDP) that is backward received can both be certain be deposited with in this buffer 30, this controller 311 just can be controlled this transmission control protocol class packet (TCP) and can not be deposited with down in this buffer 30 and directly abandon in this situation (meaning i.e. the 4th buffer resources state), that is to say and deposit the space when not reached 50% (being the above-mentioned threshold value or the second remaining space critical value) of all told by the capacity of access when this buffer 30, this user's data pack protocol class packet (UDP) maybe this transmission control protocol class packet (TCP) just all can be deposited with in this buffer 30 with prior art is the same, if the space of depositing of this buffer 30 has been reached 50% of all told by the capacity of access, then this controller 311 will be controlled this transmission control protocol class packet (TCP) and can not be deposited with in this buffer 30.
See also Fig. 4, it is that the present invention improves the prior art means to develop a data package processing method schematic flow sheet that preferred embodiment.At first, this switch hub receives a packet; Judge that this packet is a primary sources bag (as this above-mentioned UDP class packet) or a secondary sources bag (as above-mentioned this TCP class packet), if this packet is this primary sources bag, whether the remaining space of then judging this buffer is greater than the first remaining space critical value, if the remaining space of this buffer is greater than this first remaining space critical value, then this primary sources bag can be deposited with in the buffer, if the remaining space of this buffer is not greater than the first remaining space critical value, then this primary sources bag can't be deposited with in the buffer; If this packet is this secondary sources bag, whether the remaining space of then judging this buffer is greater than the second remaining space critical value, if the remaining space of this buffer is greater than this second remaining space critical value, then this secondary sources bag can be deposited with in the buffer, if the remaining space of this buffer is not greater than the second remaining space critical value, then this secondary sources bag can't be deposited with in the buffer.
Via above-mentioned explanation, we can clearly find can be at this transmission control protocol class packet (TCP) that can carry out passback (retransmit) again in the action that different buffer resources states is deposited or directly abandoned that this buffer 30 is at this switch hub 3 described in the preferred embodiment of the present invention, thus, this buffer 30 just can be reserved enough spaces of depositing and deposit and can not carry out this user's data pack protocol packet (UDP) of passback (retransmit) again, avoid this user's data pack protocol packet (UDP) because the space of depositing of this buffer 30 is taken too soon and loses, hereat, the described technological means of preferred embodiment of the present invention has solved the disappearance that is produced in the prior art really, and then reaches main purpose of the present invention.
Comprehensive above technical descriptioon; the switch hub that we can clearly find data package processing method of the present invention and use this method has improved the disappearance that is produced in the prior art really; and then finish the development topmost purpose of the present invention; therefore; the present invention must be thought and is to modify right neither taking off as the present patent application Protector that claim is desired as all by the personage Ren Shi craftsman who has the knack of this skill.
Claims (10)
1. data package processing method is applied between the packet that network equipment and its received, and this network equipment includes a buffer, and this method comprises the following step:
Set the one first buffer resources state and the one second buffer resources state of this buffer, wherein, the remaining space of this this buffer of first buffer resources state representation is greater than one first remaining space critical value, and the remaining space of this this buffer of second buffer resources state representation does not reach this first remaining space critical value;
Inspecting the content of this packet deposits to this buffer with the classification under judging;
If this packet is that a primary sources bag and this buffer are in this first buffer resources state, this primary sources bag is deposited with in this buffer; And
If this packet is in this second buffer resources state for this primary sources bag and this buffer, then forbid this primary sources bag is deposited with in this buffer;
Wherein, whether deposit this primary sources bag then fully by this first buffer resources state and the decision of this second buffer resources state.
2. data package transmitting method as claimed in claim 1 wherein, more comprises the following step:
Set one the 3rd buffer resources state and one the 4th buffer resources state of this buffer, wherein, the remaining space of the 3rd this buffer of buffer resources state representation is greater than one second remaining space critical value, and the remaining space of the 4th this buffer of buffer resources state representation does not reach this second remaining space critical value;
If this packet is that a secondary sources bag and this buffer are in the 3rd buffer resources state, this secondary sources bag is deposited with in this buffer; And
If this packet is in the 4th buffer resources state for this secondary sources bag and this buffer, then forbid this secondary sources bag is deposited with in this buffer;
Wherein, whether deposit this secondary sources bag then fully by the 3rd buffer resources state and the decision of the 4th buffer resources state, and this primary sources bag and this secondary sources bag are different type of data packet, and this first remaining space critical value is different with this second remaining space critical value.
3. data package processing method as claimed in claim 2, wherein, this primary sources bag is user's data pack protocol class packet, and this secondary sources bag is a transmission control protocol class packet.
4. data package processing method as claimed in claim 1, its applied this network equipment has more comprised a packet classification table, is this primary sources bag or this secondary sources bag in order to judge this packet.
5. data package processing method as claimed in claim 1, its applied this network equipment is a switch hub.
6. network equipment, it can receive a packet, and this network equipment comprises:
One buffer, it can be deposited this packet and be set to the one first buffer resources state that is in and one second buffer resources state, wherein, the remaining space of this this buffer of first buffer resources state representation is greater than one first remaining space critical value, and the remaining space of this this buffer of second buffer resources state representation does not reach this first remaining space critical value; And
One processing data packets unit, signal is connected in this buffer, its content that can receive this packet and inspect this packet is with the classification under judging, if this packet is that a primary sources bag and this buffer are in this first buffer resources state, this primary sources bag is deposited with in this buffer, if this packet is in this second buffer resources state for this primary sources bag and this buffer, then forbid this primary sources bag is deposited with in this buffer, wherein, whether deposit this primary sources bag then fully by this first buffer resources state and the decision of this second buffer resources state.
7. network equipment as claimed in claim 6, wherein, this buffer more is set to one the 3rd buffer resources state that is in and one the 4th buffer resources state, if this packet is that a secondary sources bag and this buffer are in the 3rd buffer resources state, this processing data packets unit is deposited with this secondary sources bag in this buffer, if this packet is in the 4th buffer resources state for this secondary sources bag and this buffer, this processing data packets unit is then forbidden this secondary sources bag is deposited with in this buffer.
8. network equipment as claimed in claim 7, wherein, the remaining space of the 4th this buffer of buffer resources state representation does not reach this second remaining space critical value to the remaining space of the 3rd this buffer of buffer resources state representation greater than one second remaining space critical value, whether deposit this secondary sources bag then fully by the 3rd buffer resources state and the decision of the 4th buffer resources state, and this primary sources bag and this secondary sources bag are different type of data packet, and this first remaining space critical value is different with this second remaining space critical value.
9. network equipment as claimed in claim 7, wherein, this processing data packets unit comprises:
One packet classification table in order to comparing this packet content, and then judges that this packet wraps in the performed action of each buffer resources state for this primary sources bag or this secondary sources bag and this primary sources bag or this secondary sources; And
One controller, signal is connected in this packet classification table and this buffer, when this packet is in this first buffer resources state for this primary sources bag and this buffer, this controller sends one first control signal and controls this primary sources bag and be deposited with in this buffer, when this packet was in the 3rd buffer resources state for this secondary sources bag and this buffer, this controller sent one second control signal and controls this secondary sources bag and be deposited with in this buffer.
10. network equipment as claimed in claim 7 is a switch hub, and wherein, this primary sources bag is user's data pack protocol class packet, and this secondary sources bag is a transmission control protocol class packet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100889932A CN101022422A (en) | 2007-03-29 | 2007-03-29 | Data packet processing method and network device using the same method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100889932A CN101022422A (en) | 2007-03-29 | 2007-03-29 | Data packet processing method and network device using the same method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895460B (en) * | 2009-05-20 | 2012-09-05 | 智微科技股份有限公司 | Network packet receiving management method and network control circuit with network packet receiving management function |
| CN102956250A (en) * | 2011-08-17 | 2013-03-06 | 安凯(广州)微电子技术有限公司 | High-efficiency audio and video file analysis method and high-efficiency audio and video file analysis equipment |
| CN111798212A (en) * | 2020-07-02 | 2020-10-20 | 中铁十六局集团第一工程有限公司 | Construction enterprise equipment running state monitoring and maintenance early warning intelligent terminal |
-
2007
- 2007-03-29 CN CNA2007100889932A patent/CN101022422A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895460B (en) * | 2009-05-20 | 2012-09-05 | 智微科技股份有限公司 | Network packet receiving management method and network control circuit with network packet receiving management function |
| CN102956250A (en) * | 2011-08-17 | 2013-03-06 | 安凯(广州)微电子技术有限公司 | High-efficiency audio and video file analysis method and high-efficiency audio and video file analysis equipment |
| CN102956250B (en) * | 2011-08-17 | 2016-08-03 | 安凯(广州)微电子技术有限公司 | A kind of efficient audio-video document analyzing method and device |
| CN111798212A (en) * | 2020-07-02 | 2020-10-20 | 中铁十六局集团第一工程有限公司 | Construction enterprise equipment running state monitoring and maintenance early warning intelligent terminal |
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