CN103703816A - Transmission method and apparatus in wireless local area network - Google Patents
Transmission method and apparatus in wireless local area network Download PDFInfo
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- CN103703816A CN103703816A CN201280000962.6A CN201280000962A CN103703816A CN 103703816 A CN103703816 A CN 103703816A CN 201280000962 A CN201280000962 A CN 201280000962A CN 103703816 A CN103703816 A CN 103703816A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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Abstract
The invention relates to a transmission method and an apparatus in wireless local area network. The invention is immune from impact imposed by interruption of the CAPWAP data tunnel under local transmission and thus can ensure normal operation of the WTP business. The method includes:WTP identifies a transmission pattern, wherein transmission patterns contains a tunnel transmission pattern and a first local transmission pattern; the WTP does not establish CAPWAP data tunnel under the first transmission pattern; or the WTP closes the CAPWAP data tunnel under the first local transmission pattern provided that the CAPWAP data tunnel is established. The invention also provides a transmission method and the corresponding apparatus in wireless local area network.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a forwarding method and apparatus in a wireless local area network.
Background
CAPWAP (Control And Provisioning of Wireless Access Points) is a standard protocol for AC (Access Controller) to manage WTPs (Wireless Termination Points), in which messages requiring the Provisioning of WTPs all need to be tunneled through the CAPWAP Control.
However, in the local forwarding scenario, the CAPWAP control tunnel and the CAPWAP data tunnel are respectively created, and during the user data transmission, the CAPWAP data tunnel is not used, but the status of the CAPWAP data tunnel needs to be maintained additionally. At this time, if the CAPWAP data tunnel is interrupted, the CAPWAP control tunnel is also interrupted, and the WTP service cannot be performed normally.
Disclosure of Invention
The invention provides a forwarding method and a forwarding device in a wireless local area network, which can be free from the influence of CAPWAP data tunnel interruption in a local forwarding scene and ensure the normal operation of WTP service.
In order to achieve the purpose, the following technical scheme is adopted:
according to an aspect of the present invention, there is provided a forwarding method in a wireless local area network, the method including:
the WTP determines a forwarding mode, the forwarding mode comprising: a tunnel forwarding mode and a first local forwarding mode;
the WTP does not establish a CAPWAP data tunnel in a first local forwarding mode; or,
the WTP closes the CAPWAP data tunnel when the CAPWAP data tunnel is established in a first local forwarding mode
According to another aspect of the present invention, there is provided a forwarding method in a wireless local area network, the method including:
the AC determines a forwarding mode of the WTP, the forwarding mode comprising: a tunnel forwarding mode and a first local forwarding mode;
when the AC determines that the WTP works in a first local forwarding mode, a CAPWAP data tunnel is not established; or
And the AC closes the keep-alive message processing process when determining that the WTP works in a first local forwarding mode and establishing a CAPWAP data tunnel.
According to another aspect of the present invention, there is provided a WTP device, comprising:
a determining unit, configured to determine a forwarding mode, where the forwarding mode includes a tunnel forwarding mode and a first local forwarding mode;
the processing unit is used for not establishing a CAPWAP data tunnel when the determining unit determines to work in the first local forwarding mode; or,
and the control unit is used for closing the CAPWAP data tunnel when the determining unit determines to work in the first local forwarding mode and the CAPWAP data tunnel is established.
According to another aspect of the present invention, there is provided an AC apparatus including:
a determining unit, configured to determine a forwarding mode of the WTP, where the forwarding mode includes: a tunnel forwarding mode and a first local forwarding mode;
a processing unit, configured to not establish a CAPWAP data tunnel when the determining unit determines that the WTP operates in the first local forwarding mode; or
And the keep-alive message processing unit is used for closing the keep-alive message processing process when the determining unit determines that the WTP works in the first local forwarding mode and the CAPWAP data tunnel is established.
After the technical scheme is adopted, the forwarding method, the AC device and the WTP device in the wireless local area network provided by the invention can avoid the influence of CAPWAP data tunnel interruption in a local forwarding scene by not establishing a CAPWAP data tunnel or closing the CAPWAP data tunnel when the wireless local area network works in the first local forwarding mode, thereby ensuring the normal operation of the WTP service
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1A is a flowchart of a forwarding method in a wireless local area network according to an embodiment of the present invention;
fig. 1B is a flowchart of another forwarding method in a wireless local area network according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the interaction between a WTP and an AC according to an embodiment of the present invention;
fig. 3A is a block diagram of a WTP device according to an embodiment of the invention;
fig. 3B is another block diagram of a WTP device according to an embodiment of the invention;
FIG. 4A is a block diagram of an AC device according to an embodiment of the present invention;
fig. 4B is another block diagram of an AC device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1A is a flowchart of a forwarding method in a wireless local area network according to an embodiment of the present invention. Referring to fig. 1A, an embodiment of the present invention provides a forwarding method in a wireless local area network, where the method is described based on WTP, and includes:
11. the WTP determines a forwarding mode, the forwarding mode comprising: a tunnel forwarding mode and a first local forwarding mode.
One way for the WTP to determine the forwarding mode may be: the WTP receives a CAPWAP message sent by the AC, wherein the CAPWAP message contains forwarding mode indication information, and certainly, the CAPWAP message also can contain necessary configuration information, such as the configuration information of a first local forwarding mode; and the WTP determines a forwarding mode according to the forwarding mode indication information in the CAPWAP message.
In the embodiment of the present invention, the CAPWAP packet carrying the forwarding Mode indication information may be an IEEE (Institute of Electrical and Electronics Engineers) 802.11WLAN (Wireless Local Area Network) Configuration Request (Configuration Request) packet, and the forwarding Mode indication information may be indicated by a Tunnel Mode (Tunnel Mode) element in the IEEE802.11WLAN Configuration Request packet. Of course, the present invention does not specifically limit the CAPWAP message, as long as the purpose of indicating the forwarding mode can be achieved.
In the tunnel forwarding mode, all data of the WTP is transmitted to the AC through the CAPWAP data tunnel established between the WTP and the AC.
In the first local forwarding mode, the WTP may forward the data directly to the AC without going through a CAPWAP data tunnel established between it and the AC. In the first local forwarding mode, only a CAPWAP control tunnel is maintained between the WTP and the AC, and a CAPWAP data tunnel is not maintained.
Optionally, the forwarding mode may further include a second local forwarding mode to ensure compatibility. In the second local forwarding mode, the WTP may forward the data directly to the AC without going through a CAPWAP data tunnel established between it and the AC. Wherein, in a second local forwarding mode, a CAPWAP control tunnel and a CAPWAP data tunnel are simultaneously maintained between the WTP and the AC, and the CAPWAP data tunnel is not eliminated.
After acquiring the forwarding mode indication information, if the forwarding mode indication information indicates a first local forwarding mode, the WTP determines whether the WTP supports (or is compatible with) the mode, and if so, the WTP directly works in the first local forwarding mode; otherwise, the local forwarding module works in a second local forwarding mode. Of course, if the forwarding mode indication information indicates the second local forwarding mode or the tunnel forwarding mode, the WTP directly operates in the second local forwarding mode or the tunnel forwarding mode.
12. The WTP does not establish a CAPWAP data tunnel in a first local forwarding mode; or, the WTP closes the CAPWAP data tunnel when the CAPWAP data tunnel is established in the first local forwarding mode.
And when the WTP works in a second local forwarding mode, establishing a CAPWAP data tunnel with the AC. For example, the WTP reestablishes a CAPWAP data tunnel with the AC when the WTP switches from a first local forwarding mode to a second local forwarding mode.
In the embodiment of the invention, when the WTP works in the first local forwarding mode, the CAPWAP data tunnel is not established, and when the CAPWAP data tunnel is already established, the CAPWAP data tunnel is closed. Wherein not establishing the CAPWAP data tunnel may be applicable, for example, to a case where the WTP is initially powered up, i.e., configured in the first local forwarding mode. Closing the established CAPWAP data tunnel may be applicable, for example, where the WTP was previously configured in the second local forwarding mode, the CAPWAP control tunnel and the CAPWAP data tunnel have been established, and then switched to the first local forwarding mode. Since the CAPWAP protocol is based on a UDP (User datagram protocol), closing the CAPWAP data tunnel may specifically be closing a port (socket) corresponding to the UDP. The WTP may send a confirmation message to the AC to close the established CAPWAP data tunnel after closing the established CAPWAP data tunnel.
In the above embodiment, the CAPWAP control tunnel may maintain the status through an Echo (Echo) message. The CAPWAP data tunnel can maintain the state through Keep-alive (Keep alive) messages.
After the WTP works in the first local forwarding mode, the WTP does not send a keep-alive (keep-alive) message to the AC in the CAPWAP data tunnel, and accordingly, after learning that the WTP closes the established CAPWAP data tunnel, the AC closes the keep-alive message processing process for the WTP, thereby ensuring that the WTP works normally.
According to the forwarding method in the wireless local area network provided by the embodiment of the invention, when the WTP works in the first local forwarding mode, the CAPWAP data tunnel is not established or closed, so that the influence of the interruption of the CAPWAP data tunnel in a local forwarding scene can be avoided, and the normal operation of the WTP service is ensured.
Fig. 1B is a flowchart of a forwarding method in a wireless local area network according to an embodiment of the present invention. Referring to fig. 1B, an embodiment of the present invention provides a forwarding method in a wireless local area network, where the method is described based on an AC, and includes:
21. the AC determines a forwarding mode of the WTP, the forwarding mode comprising: a tunnel forwarding mode and a first local forwarding mode.
Optionally, before this step 21, the AC may send a CAPWAP message to the WTP, where the CAPWAP message includes forwarding mode indication information, and of course, the CAPWAP message may further include necessary configuration information, for example, configuration information of the first local forwarding mode. And after receiving the CAPWAP message, the WTP can determine a forwarding mode according to the forwarding mode indication information in the CAPWAP message. After determining the forwarding mode of the WTP, the WTP interacts with the AC, so that the AC can determine the forwarding mode of the WTP according to the response of the WTP.
22. When the AC determines that the WTP works in a first local forwarding mode, a CAPWAP data tunnel is not established; or, the AC closes the keep-alive message processing process when determining that the WTP operates in the first local forwarding mode and when the CAPWAP data tunnel is established.
And the AC establishes a CAPWAP data tunnel with the WTP when determining that the WTP works in a second local forwarding mode. For example, the AC reestablishes a CAPWAP data tunnel with the WTP when the WTP switches from a first local forwarding mode to a second local forwarding mode.
In the embodiment of the invention, only a CAPWAP control tunnel is established between the AC and the WTP, and a CAPWAP data tunnel is not established. This approach may be applicable, for example, where the WTP is initially powered up as the first local forwarding mode.
The AC can close the keep-alive message processing process when the CAPWAP data tunnel is established. This approach may be applicable, for example, where the WTP was previously instructed to operate in the second local forwarding mode, a CAPWAP control tunnel and a CAPWAP data tunnel have been established, and then a switch to the first local forwarding mode is instructed.
When the WTP works in the first local forwarding mode, the keep-alive message is not sent to the AC in the CAPWAP data tunnel any more, and correspondingly, the AC closes the keep-alive message processing process aiming at the WTP, so that the WTP is ensured to work normally.
The AC maintains the status of the CAPWAP control tunnel based only on an echo (echo) message of the CAPWAP control tunnel. When the AC does not receive a response (echo) message sent by the WTP within a certain interval, the AC resets the CAPWAP control tunnel and the CAPWAP data tunnel to establish the CAPWAP control tunnel and the CAPWAP data tunnel with the WTP again. And in other cases, the AC considers the CAPWAP tunnel state to be normal.
According to the forwarding method in the wireless local area network provided by the embodiment of the invention, when the AC works in the first local forwarding mode, the CAPWAP data tunnel is not established or closed, so that the influence of the interruption of the CAPWAP data tunnel in a local forwarding scene can be avoided, and the normal operation of the WTP service is ensured.
In order that the invention may be better understood, the following examples are given by way of illustration of the invention. It should also be noted that the following examples are only some of the examples of the present invention, and that other examples are easily conceivable by those skilled in the art from the disclosure of the present invention, and are within the scope of the present invention.
Referring to fig. 2, the present embodiment provides a forwarding method in a wireless local area network, where the method may include:
and after the WTP is powered on, receiving a CAPWAP message sent by the AC, wherein the CAPWAP message indicates that the WTP works in a first local forwarding mode.
The WTP determines that the WTP supports a first local forwarding mode and works in the first local forwarding mode.
And only establishing a CAPWAP control tunnel between the WTP and the AC, but not establishing a CAPWAP data tunnel.
The WTP sends a response Request (Echo Request) message to the AC.
And after receiving the Response request message, the AC sends a Response (Echo Response) message to the WTP.
In the above process, the WTP operates in the first local forwarding mode after being powered on, and the WTP service can be ensured to be normally performed without being affected by interruption of the CAPWAP data tunnel in the local forwarding scenario by only establishing the CAPWAP control tunnel without establishing the CAPWAP data tunnel.
After the WTP works in a first local forwarding mode for a period of time, if a message indicating that the AC works in a tunnel forwarding mode is received, at the moment, the WTP and the AC establish a CAPWAP data tunnel, and in the data transmission process, the WTP transmits data to the AC through the CAPWAP data tunnel and sends a keep-alive (keep-alive) message to the AC to maintain the CAPWAP data tunnel.
After the WTP works in the tunnel forwarding mode, if a message indicating that the WTP works in the first local forwarding mode is received by the AC, the WTP switches back to the first local forwarding mode again. Since the CAPWAP data tunnel is established in the previous tunnel forwarding mode, the CAPWAP data tunnel can be eliminated by closing the CAPWAP data tunnel when the WTP is in the first local forwarding mode. Wherein, because the CAPWAP protocol is based on the UDP protocol, closing the CAPWAP data tunnel may specifically be closing a port (socket) corresponding to the UDP. The WTP may send a confirmation message to the AC to close the CAPWAP data tunnel after closing the CAPWAP data tunnel.
In the above process, when the WTP operates in the first local forwarding mode, the WTP does not send the keep-alive message to the AC in the CAPWAP data tunnel any longer, and accordingly, after receiving the confirmation information for closing the CAPWAP data tunnel, the AC closes the keep-alive message processing process for the WTP, thereby ensuring that the WTP operates normally.
Meanwhile, the AC maintains the state of the CAPWAP tunnel only according to a response (echo) message of the CAPWAP control tunnel. When the AC does not receive a response (echo) message sent by the WTP within a certain interval, the CAPWAP tunnel is reset to establish a CAPWAP control tunnel and a CAPWAP data tunnel with the WTP again. And in other cases, the AC considers the CAPWAP tunnel state to be normal.
Therefore, no matter the WTP is in the first local forwarding mode initially or is switched back to the first local forwarding mode, the method can not be influenced by the interruption of the CAPWAP data tunnel in the local forwarding scene, and the normal operation of the WTP service can be ensured.
Corresponding to the forwarding method in the wireless local area network provided by the embodiment of the present invention, as shown in fig. 3A, the embodiment of the present invention further provides a WTP device 30, where the WTP device 30 may include a determining unit 31 and a processing unit 32. Wherein:
a determining unit 31, configured to determine a forwarding mode, where the forwarding mode includes: a tunnel forwarding mode and a first local forwarding mode;
a processing unit 32, configured to not establish a CAPWAP data tunnel when the determining unit 31 determines to operate in the first local forwarding mode; or, the determining unit 31 is configured to close the CAPWAP data tunnel when determining to operate in the first local forwarding mode and when the CAPWAP data tunnel is established.
Optionally, the forwarding mode further includes a second local forwarding mode, and the processing unit 32 is further configured to:
establishing a CAPWAP data tunnel with the AC while operating in a second local forwarding mode.
When the WTP device provided in the embodiment of the present invention operates in the first local forwarding mode, the WTP device is not affected by interruption of the CAPWAP data tunnel in the local forwarding scenario by not establishing the CAPWAP data tunnel or closing the CAPWAP data tunnel, so as to ensure normal operation of the WTP service.
In an embodiment of the present invention, the processing unit 32 is further configured to:
establishing a CAPWAP control tunnel between the WTP and the AC;
in the first local forwarding mode, no CAPWAP data tunnel is established.
In another embodiment of the present invention, the processing unit 32 is further configured to:
respectively establishing a CAPWAP control tunnel and a CAPWAP data tunnel between the WTP and the AC;
and when in the first local forwarding mode, closing the CAPWAP data tunnel.
Wherein, the CAPWAP control tunnel maintains the state through a response message.
Further, as shown in fig. 3B, the WTP device may further include a receiving unit 33, wherein:
a receiving unit 33, configured to receive a CAPWAP message sent by an AC, where the CAPWAP message includes forwarding mode indication information;
the determination unit 31 is configured to:
and determining a forwarding mode according to the forwarding mode indication information in the CAPWAP message.
It is noted that the WTP device provided in the embodiment of the present invention corresponds to the forwarding method in the wireless local area network described above based on WTP, and since the method has been described in detail in the foregoing, the corresponding contents may refer to these descriptions, and are not described again here.
Corresponding to the forwarding method in the wireless local area network provided in the embodiment of the present invention, as shown in fig. 4A, the embodiment of the present invention further provides an AC device 40, where the AC device 40 may include a determining unit 41 and a processing unit 42, where:
a determining unit 41, configured to determine a forwarding mode of the WTP, where the forwarding mode includes: a tunnel forwarding mode and a first local forwarding mode;
a processing unit 42, configured to not establish a CAPWAP data tunnel when the determining unit determines that the WTP operates in the first local forwarding mode; or, the determining unit is configured to determine that the WTP operates in the first local forwarding mode, and when the CAPWAP data tunnel is established, close the keep-alive message processing procedure.
Optionally, the forwarding mode further comprises a second local forwarding mode. The processing unit 42 is further configured to:
establishing a CAPWAP data tunnel with the WTP when determining unit 41 determines that the WTP is operating in the second local forwarding mode.
When the AC device provided in the embodiment of the present invention operates in the first local forwarding mode, the AC device is not affected by interruption of the CAPWAP data tunnel in the local forwarding scenario by not establishing the CAPWAP data tunnel or closing the CAPWAP data tunnel, so as to ensure normal operation of the WTP service.
Optionally, in an embodiment of the present invention, the processing unit 42 is further configured to:
establishing a CAPWAP control tunnel between the AC device and the WTP;
when the determining unit 41 determines that the WTP operates in the first local forwarding mode, no CAPWAP data tunnel is established.
Optionally, in another embodiment of the present invention, the processing unit 42 is further configured to:
establishing a CAPWAP control tunnel and a CAPWAP data tunnel between the AC device and the WTP respectively;
and when the determining unit determines that the WTP works in the first local forwarding mode, closing the keep-alive message processing process.
Further, as shown in fig. 4B, the AC device may further include a transmitting unit 43. Wherein:
a sending unit 43, configured to send a CAPWAP message to the WTP, where the CAPWAP message includes forwarding mode indication information, so that the WTP determines a forwarding mode according to the forwarding mode indication information in the CAPWAP message.
It is noted that the AC device provided in the embodiment of the present invention corresponds to the forwarding method in the wireless local area network described above based on the AC, and since the method has been described in detail in the foregoing, the corresponding contents may refer to these descriptions, and are not described again here.
It should be noted that, in the above embodiments of the apparatus, the included units are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by hardware that is instructed to implement by a program, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a magnetic or optical disk, and the like.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A forwarding method in a wireless local area network, the method comprising:
a wireless termination point, WTP, determines a forwarding mode, the forwarding mode comprising: a tunnel forwarding mode and a first local forwarding mode;
the WTP does not establish a CAPWAP data tunnel in a first local forwarding mode; or,
and the WTP closes the CAPWAP data tunnel when the CAPWAP data tunnel is established in the first local forwarding mode.
2. The method of claim 1, wherein the forwarding mode further comprises a second local forwarding mode, the method further comprising:
and when the WTP works in a second local forwarding mode, establishing a CAPWAP data tunnel with the AC.
3. The method of claim 2, further comprising:
the WTP receives a CAPWAP message sent by the AC, wherein the CAPWAP message contains forwarding mode indication information;
the WTP determining a forwarding mode comprises:
and the WTP determines a forwarding mode according to the forwarding mode indication information in the CAPWAP message.
4. A forwarding method in a wireless local area network, the method comprising:
the access controller AC determines a forwarding mode of the wireless termination point WTP, the forwarding mode comprising: a tunnel forwarding mode and a first local forwarding mode;
when the AC determines that the WTP works in a first local forwarding mode, a CAPWAP data tunnel is not established; or
And the AC closes the keep-alive message processing process when determining that the WTP works in a first local forwarding mode and establishing a CAPWAP data tunnel.
5. The method of claim 4, wherein the forwarding mode further comprises a second local forwarding mode, the method further comprising:
and the AC establishes a CAPWAP data tunnel with the WTP when determining that the WTP works in a second local forwarding mode.
6. The method of claim 5, further comprising:
and the AC sends a CAPWAP message to the WTP, wherein the CAPWAP message contains forwarding mode indication information, so that the WTP determines a forwarding mode according to the forwarding mode indication information in the CAPWAP message.
7. A wireless termination point, WTP, apparatus, the WTP apparatus comprising:
a determining unit, configured to determine a forwarding mode, where the forwarding mode includes a tunnel forwarding mode and a first local forwarding mode;
the processing unit is used for not establishing a CAPWAP data tunnel when the determining unit determines to work in the first local forwarding mode; or,
and the control unit is used for closing the CAPWAP data tunnel when the determining unit determines to work in the first local forwarding mode and the CAPWAP data tunnel is established.
8. The WTP device according to claim 7, wherein the forwarding modes further include a second local forwarding mode,
the processing unit is configured to:
establishing a CAPWAP data tunnel with the AC when the determining unit determines to work in a second local forwarding mode.
9. The WTP device of claim 8, further comprising:
the system comprises a receiving unit, a forwarding unit and a forwarding unit, wherein the receiving unit is used for receiving a CAPWAP message sent by an AC, and the CAPWAP message comprises forwarding mode indication information;
the determination unit is configured to:
and determining a forwarding mode according to the forwarding mode indication information in the CAPWAP message received by the receiving unit.
10. An access controller, AC, apparatus, the AC apparatus comprising:
a determining unit configured to determine a forwarding mode of a wireless termination point WTP, the forwarding mode including: a tunnel forwarding mode and a first local forwarding mode;
a processing unit, configured to not establish a CAPWAP data tunnel when the determining unit determines that the WTP operates in the first local forwarding mode; or
And the keep-alive message processing unit is used for closing the keep-alive message processing process when the determining unit determines that the WTP works in the first local forwarding mode and the CAPWAP data tunnel is established.
11. The AC device of claim 10, wherein the forwarding modes further include a second local forwarding mode,
the processing unit is further to:
and when the determining unit determines that the WTP works in a second local forwarding mode, establishing a CAPWAP data tunnel with the WTP.
12. The AC apparatus of claim 11, further comprising:
and the sending unit is used for sending a CAPWAP message to the WTP, wherein the CAPWAP message contains forwarding mode indication information so that the WTP determines a forwarding mode according to the forwarding mode indication information in the CAPWAP message.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/081551 WO2014043853A1 (en) | 2012-09-18 | 2012-09-18 | Forwarding method and device in wireless local area network |
Publications (2)
| Publication Number | Publication Date |
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| CN103703816A true CN103703816A (en) | 2014-04-02 |
| CN103703816B CN103703816B (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201280000962.6A Active CN103703816B (en) | 2012-09-18 | 2012-09-18 | Retransmission method and device in WLAN |
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| CN (1) | CN103703816B (en) |
| WO (1) | WO2014043853A1 (en) |
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| US20190226014A1 (en) * | 2016-09-02 | 2019-07-25 | Base4 Innovation Limited | Single nucleotide detection method and associated probes |
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| US7613150B2 (en) * | 2006-07-20 | 2009-11-03 | Symbol Technologies, Inc. | Hitless restart mechanism for non-stop data-forwarding in the event of L3-mobility control-plane failure in a wireless switch |
| CN102118837B (en) * | 2009-12-30 | 2013-07-24 | 杭州华三通信技术有限公司 | Configuration acquiring method, zero configuration access point and neighbor access point |
| CN101778425A (en) * | 2010-03-10 | 2010-07-14 | 北京傲天动联技术有限公司 | Method for dynamically balancing broadband access server load in wireless local area network |
| CN102196526B (en) * | 2010-03-10 | 2015-11-25 | 江苏联优信息科技有限公司 | A kind of local flow forwarding method of centralized wireless sense network |
| CN102547850B (en) * | 2012-02-22 | 2014-04-09 | 深圳市共进电子股份有限公司 | Method for realizing CAPWAP (Control and Provisioning of Wireless Access Points) tunnel |
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2012
- 2012-09-18 CN CN201280000962.6A patent/CN103703816B/en active Active
- 2012-09-18 WO PCT/CN2012/081551 patent/WO2014043853A1/en not_active Ceased
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| Publication number | Publication date |
|---|---|
| CN103703816B (en) | 2017-09-12 |
| WO2014043853A1 (en) | 2014-03-27 |
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