CN102821413A - Data transmission method and network side equipment - Google Patents
Data transmission method and network side equipment Download PDFInfo
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- CN102821413A CN102821413A CN2012102683776A CN201210268377A CN102821413A CN 102821413 A CN102821413 A CN 102821413A CN 2012102683776 A CN2012102683776 A CN 2012102683776A CN 201210268377 A CN201210268377 A CN 201210268377A CN 102821413 A CN102821413 A CN 102821413A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
Abstract
The embodiment of the invention provides a data transmission method and network side equipment. The data transmission method comprises the following steps that whether a CAPWAP (control and provisioning of wireless access point) data channel has the data transmission or not is confirmed; and under the condition that the CAPWAP data channel has the data transmission, the sending of keep-alive messages is stopped. In the embodiment, because the keep-alive messages are not sent in the data transmission process, so the CAPWAP link breaking caused by keep-alive message loss can be prevented, and the reliability of the ACPWAP link is improved.
Description
Technical field
The embodiment of the invention relates to communication technical field, and more specifically, relates to the method and the network equipment that transmit data.
Background technology
Wireless access point control and configuration (Control and Provisioning of Wireless Access Points; CAPWAP) be a kind of access controller (Access Controller that is used to manage; AC) and wireless terminal point (Wireless Termination Points, standard agreement WTP).CAPWAP comprises data tunnel.AC and WTP periodically detect the state of data tunnel through keep-alive (Keep-alive) message.If in data transmission procedure, the keep-alive message dropping of data tunnel, then chain rupture takes place in CAPWAP, thereby influences the business of WTP.
Summary of the invention
The present invention proposes a kind of method and network equipment that transmits data, can improve the reliability of CAPWAP link.
On the one hand, the present invention provides the method for transmission data, comprising:
Confirm whether wireless access point control and configuration CAPWAP data tunnel have transfer of data; Have under the situation of transfer of data at this CAPWAP data tunnel, stop to send the keep-alive message.
Confirm wherein whether the CAPWAP data tunnel has transfer of data, comprising:
Under the situation of literary composition that sends datagram through this CAPWAP data tunnel, confirm that this CAPWAP data tunnel has transfer of data;
Receiving under the situation of data message through this CAPWAP data tunnel, confirming that this CAPWAP data tunnel has transfer of data; Or
Under the situation that receives the data message response through this CAPWAP data tunnel, confirm that this CAPWAP data tunnel has transfer of data.
Optional, in Preset Time, do not have under the situation of transfer of data in this CAPWAP data tunnel, recover to send the keep-alive message.
Wherein this method is carried out by access controller AC and wireless terminal point WTP.
On the other hand, the present invention provides network equipment, comprising:
Sending module is used to send the keep-alive message;
Determination module is used for confirming whether wireless access point control and configuration CAPWAP data tunnel have transfer of data;
Control module is used for confirming that at this determination module this CAPWAP data tunnel has under the situation of transfer of data, controls this sending module and stops to send this keep-alive message.
Optional, sending module also is used for through the CAPWAP data tunnel literary composition that sends datagram; Send under the situation of this data message through this CAPWAP data tunnel at this sending module, determination module confirms that this CAPWAP data tunnel has transfer of data.Optional, this equipment also comprises: timing module, be used for sending under the situation of this data message through this CAPWAP data tunnel at this sending module, and pick up counting; Control module, be used for also that timing at this timing module reaches Preset Time and in this Preset Time this sending module do not send datagram through this CAPWAP data tunnel again under the situation of literary composition, control this sending module and recover to send the keep-alive message.
Optional, this equipment also comprises: receiver module is used for through CAPWAP data tunnel receiving data packets; Receive under the situation of this data message through this CAPWAP data tunnel at this receiver module, determination module confirms that this CAPWAP data tunnel has transfer of data.Optional, this equipment also comprises: timing module, be used for receiving under the situation of this data message through this CAPWAP data tunnel at this receiver module, and pick up counting; Control module, be used for also that timing at this timing module reaches Preset Time and in this Preset Time this receiver module do not receive under the situation of data message through this CAPWAP data tunnel again, control this sending module and recover to send the keep-alive message.
Optional, this equipment also comprises: receiver module is used for responding through CAPWAP data tunnel receiving data packets; Receive through this CAPWAP data tunnel at this receiver module under the situation of this data message response, determination module confirms that this CAPWAP data tunnel has transfer of data.Optional, this equipment also comprises: timing module, be used for receiving through this CAPWAP data tunnel under the situation of this data message response at this receiver module, and pick up counting; Control module, be used for also that timing at this timing module reaches Preset Time and in this Preset Time this receiver module do not receive through this CAPWAP data tunnel again under the situation of data message response, control this sending module and recover to send the keep-alive message.
Wherein, this equipment is wireless terminal point WTP or access controller AC.
The embodiment of the invention keep-alive message of in data transmission procedure, not redispatching can prevent because the CAPWAP chain rupture that the keep-alive message dropping causes like this, has improved the reliability of CAPWAP link.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use in the embodiment of the invention below; Obviously, below described accompanying drawing only be some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the indicative flowchart of the method for the transmission data that provide of the embodiment of the invention.
Fig. 2 is the indicative flowchart of the method for the transmission data that provide of the embodiment of the invention.
Fig. 3 is the indicative flowchart of the method for the transmission data that provide of the embodiment of the invention.
Fig. 4 is the schematic block diagram of the network equipment that provides of the embodiment of the invention.
Fig. 5 is the schematic block diagram of the network equipment that provides of another embodiment of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work should belong to the scope that the present invention protects.
WTP can be that (Access Point AP), is responsible for the encryption and decryption of message, the simple functions such as statistics that radio frequency is eated dishes without rice or wine to access point.AC is in charge of one or more WTP.
Fig. 1 is the indicative flowchart of the method for the transmission data that provide of the embodiment of the invention.The method of Fig. 1 can be carried out by network equipment, is for example carried out by WTP or AC.
101, confirm whether the CAPWAP data tunnel has transfer of data.
102, have at the CAPWAP data tunnel under the situation of transfer of data, stop to send the keep-alive message.
The embodiment of the invention keep-alive message of in data transmission procedure, not redispatching can prevent because the CAPWAP chain rupture that the keep-alive message dropping causes like this, has improved the reliability of CAPWAP link.
Alternatively, as an embodiment, method shown in Figure 1 can be used for first network equipment to second network equipment send datagram the literary composition situation.For example, in step 101, first network equipment can through the CAPWAP data tunnel to second network equipment send datagram the literary composition situation under, confirm that the CAPWAP data tunnel has transfer of data.Perhaps, second network equipment can receive under the situation of data message through the CAPWAP data tunnel, confirms that the CAPWAP data tunnel has transfer of data.Perhaps, first network equipment can confirm that the CAPWAP data tunnel has transfer of data under the situation that receives the data message response through the CAPWAP data tunnel.Generally speaking, first network equipment is after second network equipment sends datagram literary composition, and second network equipment can be used to confirm that second network equipment receives data message to the send datagram literary composition response of first network equipment.
It should be noted that in present specification term " first " and " second " only are in order to distinguish different objects each other, but not to the restriction of the object modified.For example, can exchange the function or the operation of the object that " first " and " second " modified, such modification still falls in the scope of the embodiment of the invention.
Alternatively, as another embodiment, in Preset Time, do not have in the CAPWAP data tunnel can recover to send the keep-alive message under the situation of transfer of data.For example can send the keep-alive message according to existing mode.Can detect the state of data tunnel like this through the keep-alive message.For example, first network equipment can not have under the situation of transfer of data at definite CAPWAP data tunnel, recovers to send the keep-alive message to second network equipment.Perhaps, second network equipment can not have under the situation of transfer of data at definite CAPWAP data tunnel, sends the keep-alive message to first network equipment.Under above-mentioned situation, first network equipment and second network equipment are confirmed CAPWAP data tunnel UNICOM.Said process also can be initiated by second network equipment, and process and said process are similar, needn't give unnecessary details at this.
Alternatively, as an embodiment, first network equipment can be WTP or AC; Second network equipment can be AC or WTP.For example, be under the situation of WTP at first network equipment, second network equipment is AC; At first network equipment is under the situation of AC, and second network equipment is WTP.
Fig. 2 is the indicative flowchart of the method for the transmission data that provide of the embodiment of the invention.This method is a specific embodiment of method shown in Figure 1, when receiving the data message of first network equipment transmission, stops to send the keep-alive message by second network equipment.
201, through the CAPWAP data tunnel from the first network equipment receiving data packets.
202, stop to send the keep-alive message to first network equipment.
203, in the preset time, do not receive from first network equipment under the situation of data message through the CAPWAP data tunnel again, recover to send the keep-alive message to first network equipment.
Alternatively, as an embodiment, second network equipment is receiving from first network equipment under the situation of data message, to the send datagram literary composition response of first network equipment, is used to confirm that second network equipment receives data message.
Alternatively, as another embodiment, first network equipment can be WTP or AC; Second network equipment can be AC or WTP.At first network equipment is under the situation of WTP, and second network equipment is AC; At first network equipment is under the situation of AC, and second network equipment is WTP.
The embodiment of the invention keep-alive message of in data transmission procedure, not redispatching can prevent because the CAPWAP chain rupture that the keep-alive message dropping causes like this, has improved the reliability of CAPWAP link.In addition, do not receive again within a certain period of time and continue under the situation of data message to send the keep-alive message, can continue to detect the state of data tunnel through the keep-alive message.
The method of Fig. 2 can be applied to other situation similarly, and for example second network equipment is receiving the situation that stops to send the keep-alive message when data message responds, and second network equipment stops to send the situation of keep-alive message when sending datagram literary composition.For succinctly, repeat no more.
Fig. 3 is the indicative flowchart of the method for the transmission data that provide of the embodiment of the invention.
301, the first network equipments through the CAPWAP data tunnel to second network equipment literary composition that sends datagram.
First network equipment sent datagram civilian situation through the CAPWAP data tunnel under, first network equipment can confirm that the CAPWAP data tunnel has transfer of data.In the case, first network equipment can stop to send the keep-alive message to second network equipment.
302, receive from first network equipment under the situation of data message at second network equipment, second network equipment is used to confirm that to the send datagram literary composition response of first network equipment second network equipment receives data message.
Second network equipment can confirm that also the CAPWAP data tunnel has transfer of data under the situation of the data message that receives the transmission of first network equipment through the CAPWAP data tunnel.In the case, second network equipment also can stop to send the keep-alive message to first network equipment.
On the other hand, receive from second network equipment through the CAPWAP data tunnel at first network equipment under the situation of data message response, first network equipment can confirm that the CAPWAP data tunnel has transfer of data.At this moment, first network equipment can stop to send the keep-alive message to second network equipment.
303, when first network equipment received data message, second network equipment picked up counting at second network equipment.For example, carry out timing by the timing module that is provided with on second network equipment.
Receive under the situation of data message from first network equipment once more in Preset Time at second network equipment, the timing module of second network equipment restarts timing.
304, do not receive from first network equipment under the situation of data message through the CAPWAP data tunnel again in Preset Time at second network equipment, second network equipment recovers to send the keep-alive message to first network equipment.
305, receive from second network equipment under the situation of keep-alive message at first network equipment, send the keep-alive message to second network equipment, be used to confirm that chain rupture does not take place the data tunnel of CAPWAP.
In the present embodiment, first network equipment can be WTP or AC; Second network equipment can be AC or WTP.For example, be under the situation of WTP at first network equipment, second network equipment is AC; At first network equipment is under the situation of AC, and second network equipment is WTP.
Method shown in Figure 3 is first network equipment to the send datagram situation of literary composition of second network equipment.Second network equipment also can be to first network equipment literary composition that sends datagram.Second network equipment is similar to the send datagram method that stops or recovering and the method shown in Figure 3 of method and corresponding keep-alive message of literary composition of first network equipment, needn't give unnecessary details at this.
According to method shown in Figure 3, can be in data transmission procedure, prevent because the CAPWAP chain rupture that data tunnel keep-alive message dropping causes, improve the reliability of CAPWAP link.
Fig. 4 is the schematic block diagram of the network equipment that provides of the embodiment of the invention.The network equipment 400 of Fig. 4 comprises sending module 401, determination module 402 and control module 403.
The embodiment of the invention keep-alive message of in data transmission procedure, not redispatching can prevent because the CAPWAP chain rupture that the keep-alive message dropping causes like this, has improved the reliability of CAPWAP link.
The network equipment 400 of Fig. 4 can be WTP or AC, but and each step of execution graph 1 to method shown in Figure 3, for avoiding repetition, be not described in detail.
Fig. 5 is the schematic block diagram of the network equipment that provides of another embodiment of the present invention.The network equipment 500 of Fig. 5 is embodiment of network equipment 400.For example, network equipment 500 can be first network equipment and second network equipment among Fig. 3.Network equipment 500 comprises: sending module 501, determination module 502, control module 503, receiver module 504, timing module 505.
Sending module 501 can send the keep-alive message.Determination module 502 confirms whether the CAPWAP data tunnel has transfer of data.Control module 503 confirms that at determination module 502 the CAPWAP data tunnel has under the situation of transfer of data, and control sending module 501 stops to send the keep-alive message.
Alternatively, as an embodiment, sending module 501 can also be through the CAPWAP data tunnel literary composition that sends datagram.Sending module 501 sent datagram civilian situation through the CAPWAP data tunnel under, determination module 502 confirmed that the CAPWAP data tunnels have transfer of data.At this moment, control module 503 control sending modules 501 stop to send the keep-alive message.
In the case, network equipment 500 can also comprise timing module 505, is used for sending module 501 sends datagram civilian situation through the CAPWAP data tunnel under, picking up counting.Control module 503 the timing of timing module 505 reach Preset Time and in this Preset Time sending module 501 do not send datagram through the CAPWAP data tunnel again under the situation of literary composition, control sending module 501 recovers to send the keep-alive messages.Can continue to detect the state of data tunnel like this through the keep-alive message.
Alternatively, as another embodiment, network equipment 500 can also comprise receiver module 504, is used for through CAPWAP data tunnel receiving data packets.Receive through the CAPWAP data tunnel under the situation of data message at receiver module 504, determination module 502 confirms that the CAPWAP data tunnel has transfer of data.At this moment, control module 503 control sending modules 501 stop to send the keep-alive message.
In the case, network equipment 500 can also comprise timing module 505, is used for receiving under the situation of data message through the CAPWAP data tunnel at receiver module, picks up counting.Control module can reach Preset Time in the timing of timing module 505 and in Preset Time receiver module 504 do not receive under the situation of data message through the CAPWAP data tunnel again, control sending module 501 recovers to send the keep-alive messages.Can continue to detect the state of data tunnel like this through the keep-alive message.
Alternatively, as another embodiment, receiver module 504 can be through the response of CAPWAP data tunnel receiving data packets.Receive through the CAPWAP data tunnel at receiver module 504 under the situation of data message response, determination module 502 confirms that the CAPWAP data tunnel has transfer of data.At this moment, control module 503 control sending modules 501 stop to send the keep-alive message.
In the case, network equipment 500 can also comprise timing module 505, is used for receiving through the CAPWAP data tunnel under the situation of data message response at receiver module, picks up counting.Control module 503 can reach Preset Time in the timing of timing module and in Preset Time receiver module 504 do not receive under the situation of data message response through the CAPWAP data tunnel again, control sending module 501 recovers to send the keep-alive messages.Can continue to detect the state of data tunnel like this through the keep-alive message.
The embodiment of the invention keep-alive message of in data transmission procedure, not redispatching can prevent because the CAPWAP chain rupture that the keep-alive message dropping causes like this, has improved the reliability of CAPWAP link.
The network equipment 500 of Fig. 5 can be WTP or AC, but and each step of execution graph 1 to method shown in Figure 3, for avoiding repetition, be not described in detail.
Those of ordinary skills can recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each certain applications, but this realization should not thought and exceeds scope of the present invention.
The those skilled in the art can be well understood to, for the convenience described with succinct, the concrete course of work of the system of foregoing description, device and unit can repeat no more at this with reference to the corresponding process among the preceding method embodiment.
In several embodiment that the application provided, should be understood that the system that is disclosed, apparatus and method can realize through other mode.For example, device embodiment described above only is schematically, for example; The division of said unit; Only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can combine or can be integrated into another system; Or some characteristics can ignore, or do not carry out.Another point, the coupling each other that shows or discuss or directly coupling or communication to connect can be through some interfaces, the INDIRECT COUPLING of device or unit or communication connect, and can be electrically, machinery or other form.
Said unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of unit wherein of reality.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.
If said function realizes with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words or the part of this technical scheme can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the said method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; Be merely embodiment of the present invention; But protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field in the technical scope that the present invention discloses, the variation that can expect easily or replacement; All should be encompassed within protection scope of the present invention, so protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (12)
1. a method of transmitting data is characterized in that, comprising:
Confirm whether wireless access point control and configuration CAPWAP data tunnel have transfer of data;
Have under the situation of transfer of data at said CAPWAP data tunnel, stop to send the keep-alive message.
2. the method for claim 1 is characterized in that, whether said definite CAPWAP data tunnel has transfer of data, comprising:
Under the situation of literary composition that sends datagram through said CAPWAP data tunnel, confirm that said CAPWAP data tunnel has transfer of data;
Receiving under the situation of data message through said CAPWAP data tunnel, confirming that said CAPWAP data tunnel has transfer of data; Or
Under the situation that receives the data message response through said CAPWAP data tunnel, confirm that said CAPWAP data tunnel has transfer of data.
3. according to claim 1 or claim 2 method is characterized in that said method also comprises: in Preset Time, do not have under the situation of transfer of data in the said CAPWAP data tunnel, recover to send the keep-alive message.
4. like each described method of claim 1-3, it is characterized in that said method is carried out by access controller AC and wireless terminal point WTP.
5. a network equipment is characterized in that, comprising:
Sending module is used to send the keep-alive message;
Determination module is used for confirming whether wireless access point control and configuration CAPWAP data tunnel have transfer of data;
Control module is used for confirming that at said determination module said CAPWAP data tunnel has under the situation of transfer of data, controls said sending module and stops to send said keep-alive message.
6. equipment as claimed in claim 5 is characterized in that,
Said sending module also is used for through the said CAPWAP data tunnel literary composition that sends datagram;
Wherein, send under the situation of said data message through said CAPWAP data tunnel at said sending module, said determination module confirms that said CAPWAP data tunnel has transfer of data.
7. equipment as claimed in claim 6 is characterized in that, said equipment also comprises:
Timing module is used for sending under the situation of said data message through said CAPWAP data tunnel at said sending module, picks up counting,
Said control module; Be used for also that timing at said timing module reaches Preset Time and in said Preset Time said sending module do not send datagram through said CAPWAP data tunnel again under the situation of literary composition, control said sending module and recover to send the keep-alive message.
8. equipment as claimed in claim 5 is characterized in that, said equipment also comprises:
Receiver module is used for through said CAPWAP data tunnel receiving data packets;
Wherein, receive under the situation of said data message through said CAPWAP data tunnel at said receiver module, said determination module confirms that said CAPWAP data tunnel has transfer of data.
9. equipment as claimed in claim 8 is characterized in that, said equipment also comprises:
Timing module is used for receiving under the situation of said data message through said CAPWAP data tunnel at said receiver module, picks up counting,
Said control module; Be used for also that timing at said timing module reaches Preset Time and in said Preset Time said receiver module do not receive under the situation of data message through said CAPWAP data tunnel again, control said sending module and recover to send the keep-alive message.
10. equipment as claimed in claim 5 is characterized in that, said equipment also comprises:
Receiver module is used for through said CAPWAP data tunnel receiving data packets response;
Wherein, receive through said CAPWAP data tunnel at said receiver module under the situation of said data message response, said determination module confirms that said CAPWAP data tunnel has transfer of data.
11. equipment as claimed in claim 10 is characterized in that, said equipment also comprises:
Timing module is used for receiving through said CAPWAP data tunnel under the situation of said data message response at said receiver module, picks up counting,
Said control module; Be used for also that timing at said timing module reaches Preset Time and in said Preset Time said receiver module do not receive through said CAPWAP data tunnel again under the situation of data message response, control said sending module and recover to send the keep-alive message.
12., it is characterized in that said equipment is wireless terminal point WTP or access controller AC like each described equipment of claim 5-11.
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|---|---|---|---|
| CN2012102683776A CN102821413A (en) | 2012-07-31 | 2012-07-31 | Data transmission method and network side equipment |
| PCT/CN2013/075054 WO2014019389A1 (en) | 2012-07-31 | 2013-05-02 | Data transmission method and network side device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102683776A CN102821413A (en) | 2012-07-31 | 2012-07-31 | Data transmission method and network side equipment |
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