CN103079284A - Wireless distribution system (WDS) bridging establishment method, device and network equipment - Google Patents
Wireless distribution system (WDS) bridging establishment method, device and network equipment Download PDFInfo
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- CN103079284A CN103079284A CN2012105819087A CN201210581908A CN103079284A CN 103079284 A CN103079284 A CN 103079284A CN 2012105819087 A CN2012105819087 A CN 2012105819087A CN 201210581908 A CN201210581908 A CN 201210581908A CN 103079284 A CN103079284 A CN 103079284A
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Abstract
The invention provides a wireless distribution system (WDS) bridging establishment method, a WDS bridging establishment device and network equipment. The method comprises the following steps that a working channel which is currently used is monitored by root bridge equipment, so as to receive a non-root bridge message sent by non-root bridge equipment, a source MAC (Media Access Control) address of the non-root bridge message is an MAC address of the non-root bridge equipment, and a destination MAC address of the non-root bridge message is an MAC address of the root bridge equipment; if the non-root bridge message is received, whether WDS bridging is established between the root bridge equipment and the non-root bridge equipment or not is judged by the root bridge equipment in accordance with the non-root bridge message; and if the WDS bridging is not established between the root bridge equipment and the non-root bridge equipment after judging, the MAC address of the non-root bridge equipment is stored by the root bridge equipment, the state of the non-root bridge equipment is maintained by the root bridge equipment, so as to establish the WDS bridging with the non-root bridge equipment. By adopting the technical scheme of the invention, the WDS bridging establishment process can be simplified, and the WDS bridging establishment speed can be increased.
Description
Technical field
The present invention relates to wireless communication technology, relate in particular to a kind of wireless distribution system bridge joint method for building up, device and the network equipment.
Background technology
In actual applications, often need to connect two or more distant networks that are separated from each other.If use cable network to connect the network of two separation, not only the construction period long, maintenance cost is high, and maintenance cost also can increase along with the growth of service time.And the appearance of wireless distribution system (WirelessDistribution System is referred to as WDS), not only can realize two between the separated network connection but also can reduce maintenance cost.
Modal WDS bridge joint is set up process and is in the prior art: the both sides of WDS bridge joint consult alternately by special WDS message, the content of consulting is set in the WDS message, thereby realizes the foundation of both sides WDS bridge joint.Because existing WDS bridge joint method for building up needs mutual negotiations process, the WDS bridge joint is set up the process complexity, and speed is slower.
Summary of the invention
The invention provides a kind of wireless distribution system bridge joint method for building up, device and the network equipment, set up process in order to simplify the WDS bridge joint, improve the speed that the WDS bridge joint is set up.
First aspect provides a kind of wireless distribution system WDS bridge joint method for building up, comprising:
Root bridge equipment is monitored the working channel of current use, the nonroot bridge message that sends to receive nonroot bridge equipment, the source medium access control MAC Address of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment;
If receive described nonroot bridge message, described root bridge equipment judges between described root bridge equipment and the described nonroot bridge equipment whether set up the WDS bridge joint according to described nonroot bridge message;
If judge between described root bridge equipment and the described nonroot bridge equipment and do not set up the WDS bridge joint, the MAC Address of the described nonroot bridge equipment of described root bridge device storage is also safeguarded the state of described nonroot bridge equipment, to set up the WDS bridge joint with described nonroot bridge equipment.
Second aspect provides a kind of wireless distribution system WDS bridge joint method for building up, comprising:
The enterprising line scanning of each working channel that nonroot bridge equipment is being supported, receive the beacon message that described root bridge equipment sends with the medium access control MAC Address according to pre-configured root bridge equipment, the source MAC of described beacon message is the MAC Address of described root bridge equipment;
If receive described beacon message, described nonroot bridge equipment sends the nonroot bridge message to described root bridge equipment on the working channel that receives described beacon message, to set up the WDS bridge joint with described root bridge equipment, the source MAC of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment.
The third aspect provides a kind of wireless distribution system WDS bridge joint apparatus for establishing, is arranged in the root bridge equipment, and described device comprises:
Monitor module, be used for the working channel of the current use of described root bridge equipment is monitored, the nonroot bridge message that sends to receive nonroot bridge equipment, the source medium access control MAC Address of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment;
The first judge module is used for judging between described root bridge equipment and the described nonroot bridge equipment whether set up the WDS bridge joint according to described nonroot bridge message when receiving described nonroot bridge message;
Set up module, do not set up the WDS bridge joint for judging between described root bridge equipment and the described nonroot bridge equipment at described the first judge module, store the MAC Address of described nonroot bridge equipment and safeguard the state of described nonroot bridge equipment, to set up the WDS bridge joint between described root bridge equipment and the described nonroot bridge equipment.
Fourth aspect provides a kind of wireless distribution system WDS bridge joint apparatus for establishing, is arranged in the nonroot bridge equipment, and described device comprises:
Scan module, for the enterprising line scanning of each working channel of supporting at described nonroot bridge equipment, receive the beacon message that described root bridge equipment sends with the medium access control MAC Address according to pre-configured root bridge equipment, the source MAC of described beacon message is the MAC Address of described root bridge equipment;
Set up module, be used for when receiving described beacon message, on the working channel that receives described beacon message, send the nonroot bridge message to described root bridge equipment, to set up the WDS bridge joint between described nonroot bridge equipment and the described root bridge equipment, the source MAC of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment.
The 5th aspect provides a kind of network equipment, comprises arbitrary wireless distribution system WDS bridge joint apparatus for establishing that the third aspect provides, and/or, arbitrary WDS bridge joint apparatus for establishing that fourth aspect provides.
Wireless distribution system bridge joint method for building up provided by the invention, device and the network equipment, root bridge equipment be based on the monitoring to the working channel of current use, and set up the WDS bridge joint according to nonroot bridge message and nonroot bridge equipment that the nonroot bridge equipment that listens to sends; And nonroot bridge equipment is based on each working channel of supporting is scanned, and find root bridge equipment and set up the WDS bridge joint with root bridge equipment according to the MAC Address of pre-configured root bridge equipment, in this process, root bridge equipment and nonroot bridge equipment do not need to use special WDS message to consult alternately, realize relatively simply, improved the efficient that the WDS bridge joint is set up.
Description of drawings
The flow chart of a kind of WDS bridge joint method for building up that Fig. 1 provides for the embodiment of the invention;
The flow chart of the another kind of WDS bridge joint method for building up that Fig. 2 provides for the embodiment of the invention;
The flow chart of another WDS bridge joint method for building up that Fig. 3 provides for the embodiment of the invention;
The flow chart of another WDS bridge joint method for building up that Fig. 4 provides for the embodiment of the invention;
The structural representation of a kind of WDS bridge joint apparatus for establishing that Fig. 5 provides for the embodiment of the invention;
The structural representation of the another kind of WDS bridge joint apparatus for establishing that Fig. 6 provides for the embodiment of the invention;
The structural representation of another WDS bridge joint apparatus for establishing that Fig. 7 provides for the embodiment of the invention;
The structural representation of another WDS bridge joint apparatus for establishing that Fig. 8 provides for the embodiment of the invention.
Embodiment
The flow chart of a kind of WDS bridge joint method for building up that Fig. 1 provides for the embodiment of the invention.As shown in Figure 1, the method for the present embodiment comprises:
Step 101, root bridge equipment are monitored the working channel of current use, the nonroot bridge message that sends to receive nonroot bridge equipment, and the source MAC of this nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of nonroot bridge equipment is the MAC Address of root bridge equipment.
If step 102 receives described nonroot bridge message, root bridge equipment judges between root bridge equipment and the nonroot bridge equipment whether set up the WDS bridge joint according to this nonroot bridge message; If the determination result is NO, namely do not set up the WDS bridge joint between root bridge equipment and the nonroot bridge equipment, then execution in step 103; If judged result is yes, i.e. built vertical WDS bridge joint between root bridge equipment and the nonroot bridge equipment, optional, root bridge equipment can finish this WDS bridge joint and set up process.
In this explanation, this WDS bridge joint of root bridge device end is set up process and is not meant that root bridge equipment do not process this nonroot bridge message, root bridge equipment is just no longer carried out the operation of setting up the WDS bridge joint with nonroot bridge equipment, but still can carry out the operation that the nonroot bridge message that receives is processed.
The MAC Address of step 103, root bridge device storage nonroot bridge equipment is also safeguarded the state of nonroot bridge equipment, to set up the WDS bridge joint with nonroot bridge equipment.
In the present embodiment, root bridge equipment and nonroot bridge equipment can be that any use WDS bridge joint carries out the equipment in the interconnected network, for example can be WAP (wireless access point) (Access Point are referred to as AP).In the WDS bridge joint, distinguish root bridge (root-bridge) end and nonroot bridge (non-root-bridge) end, the present embodiment will be called as the equipment of root bridge end root bridge equipment, will be called as the equipment of nonroot bridge end nonroot bridge equipment.
Optionally, if root bridge equipment is AP, then need to create for root bridge equipment in advance the basic service set (Basic Service Set is referred to as BSS) of normal use, the BSSID of configuration root bridge equipment, and configuration root bridge equipment is operated in the root bridge pattern.Accordingly, the MAC Address of root bridge equipment can be the BSSID of root bridge equipment.
Optionally, if nonroot bridge equipment is AP, then need to be pre-created the normal BSS that uses of nonroot bridge equipment, the BSSID of configuration nonroot bridge equipment, and configuration nonroot bridge equipment is operated in the nonroot bridge pattern.Accordingly, the MAC Address of nonroot bridge equipment can be the BSSID of nonroot bridge equipment.
In this explanation, root bridge equipment and nonroot bridge equipment are AP, only are a kind of illustrating, and are not limited to this.
In the present embodiment, root bridge equipment is monitored the working channel of current use, the nonroot bridge message that sends to receive nonroot bridge equipment.In the present embodiment, described nonroot bridge message refers to the message of clean culture 4 addresses of stipulating in the WDS agreement.Based on this, root bridge equipment is after receiving message, whether the MAC Address of the message that can receive by judgement is clean culture 4 addresses, judge whether the message that receives is the nonroot bridge message, and whether the target MAC (Media Access Control) address of further judging this nonroot bridge message be the MAC Address of root bridge equipment self, and then judge whether the nonroot bridge message that receives sends to root bridge equipment.
In the present embodiment, root bridge equipment can safeguard set up the WDS bridge joint with it nonroot bridge equipment for information about, these information include but not limited to the MAC Address of nonroot bridge equipment and the state of nonroot bridge equipment etc.Based on this, root bridge equipment judge receive the nonroot bridge message after, the source MAC of the nonroot bridge message MAC Address with the nonroot bridge equipment of safeguarding is compared, if the source MAC of nonroot bridge message is present in the MAC Address of the nonroot bridge equipment of safeguarding, then determine to set up the WDS bridge joint with the nonroot bridge equipment that sends this nonroot bridge message; If the source MAC of nonroot bridge message is not present in the MAC Address of the nonroot bridge equipment of safeguarding, then determine not yet to set up the WDS bridge joint with the nonroot bridge equipment that sends this nonroot bridge message.
Root bridge equipment judge not yet set up the WDS bridge joint with the nonroot bridge equipment that sends the nonroot bridge message after, store the MAC Address of this nonroot bridge equipment and safeguard the state of this nonroot bridge equipment, to set up the WDS bridge joint with this nonroot bridge equipment.
Optionally, root bridge equipment can create be used in this locality managing listings that nonroot bridge equipment is managed, MAC Address and the state information of nonroot bridge equipment is stored in this managing listings, to set up the WDS bridge joint with this nonroot bridge equipment.Concerning root bridge equipment, be equivalent to set up the butt of WDS bridge joint.
Optionally, root bridge equipment can automatic disassembling and nonroot bridge equipment between the WDS bridge joint, and with for information about deletion of the nonroot bridge equipment safeguarded.
By as seen above-mentioned, root bridge equipment is based on the monitoring to the working channel of current use, and set up the WDS bridge joint according to nonroot bridge message and nonroot bridge equipment that the nonroot bridge equipment that listens to sends, in this process, root bridge equipment and nonroot bridge equipment do not need to use special WDS message to consult alternately, realize relatively simply, improved the efficient that the WDS bridge joint is set up.In addition, concerning root bridge equipment, do not need the MAC Address of pre-configured nonroot bridge equipment, also do not need pre-configured and nonroot bridge equipment to set up the information such as channel that the WDS bridge joint uses, its configuration effort is relatively simple; Because the information of configuration is relatively simple, so the adaptive ability of the present embodiment method is stronger, when needs change the WDS bridge joint, can change at any time, do not need to reconfigure any information.
The flow chart of the another kind of WDS bridge joint method for building up that Fig. 2 provides for the embodiment of the invention.As shown in Figure 2, the method for the present embodiment comprises:
Step 201, root bridge equipment are monitored the working channel of current use, the nonroot bridge message that sends to receive nonroot bridge equipment, and the source MAC of this nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of nonroot bridge equipment is the MAC Address of root bridge equipment.
If step 202 receives described nonroot bridge message, root bridge equipment judges between root bridge equipment and the nonroot bridge equipment whether set up the WDS bridge joint according to this nonroot bridge message; If the determination result is NO, namely do not set up the WDS bridge joint between root bridge equipment and the nonroot bridge equipment, then execution in step 203; If judged result is yes, i.e. built vertical WDS bridge joint between root bridge equipment and the nonroot bridge equipment, optional, root bridge equipment can finish this WDS bridge joint and set up process.
The MAC Address of step 203, root bridge device storage nonroot bridge equipment is also safeguarded the state of nonroot bridge equipment, to set up the WDS bridge joint with nonroot bridge equipment.
Step 201-step 203 can referring to step 101-step 103, not repeat them here.
In the present embodiment, root bridge equipment and nonroot bridge equipment are set up after the WDS bridge joint, and root bridge equipment is also kept WDS bridge joint between root bridge equipment and the nonroot bridge equipment by keepalive mechanism.
Root bridge equipment can judge regularly whether root bridge equipment and nonroot bridge equipment at the appointed time carried out message interaction in the scope, in other words, root bridge equipment regularly judges at the appointed time whether received the message of nonroot bridge equipment transmission or sent message to nonroot bridge equipment in the scope.If root bridge equipment at the appointed time carried out message interaction with nonroot bridge equipment in the scope, illustrate that the WDS bridge joint between root bridge equipment and the nonroot bridge equipment is also effective, then can not carry out keep-alive to this WDS bridge joint and process.If root bridge equipment did not at the appointed time carry out message interaction with nonroot bridge equipment in the scope; then the root bridge device start is processed the keep-alive of this WDS bridge joint; namely send the keep-alive message to nonroot bridge equipment, to keep the WDS bridge joint between root bridge equipment and the nonroot bridge equipment.
The size of above-mentioned fixed time scope can arrange according to application demand adaptability, such as being 1 minute, 1 second etc.
Wherein, after root bridge equipment sends the keep-alive message to nonroot bridge equipment, can wait for receiving the keep-alive response message that nonroot bridge equipment returns for this keep-alive message.If root bridge equipment receives the keep-alive response message that nonroot bridge equipment returns, illustrate successfully the keep-alive message is sent to nonroot bridge equipment; If root bridge equipment does not receive the keep-alive response message that nonroot bridge equipment returns, illustrate to nonroot bridge equipment to send the failure of keep-alive message.Optionally, the root bridge equipment records sends the frequency of failure of keep-alive message to nonroot bridge equipment.Based on this, a kind of optional execution mode of step 205 comprises:
Root bridge equipment judges to the frequency of failure of nonroot bridge equipment transmission keep-alive message whether reached the preset times threshold value.If the determination result is NO, namely the frequency of failure to nonroot bridge equipment transmission keep-alive message does not reach the preset times threshold value, illustrate that this WDS bridge joint can also continue keep-alive, then root bridge equipment sends the keep-alive message to nonroot bridge equipment, and wait receives the keep-alive response message that nonroot bridge equipment returns for this keep-alive message, if root bridge equipment receives nonroot bridge equipment for the keep-alive response message that this keep-alive message returns, then return to carry out and judge whether root bridge equipment and nonroot bridge equipment at the appointed time carried out the operation of message interaction in the scope; If root bridge equipment does not receive the keep-alive response message that nonroot bridge equipment returns for this keep-alive message; then root bridge equipment will add 1 to the frequency of failure of nonroot bridge equipment transmission keep-alive message, and return to carry out and judge the operation that whether has reached the preset times threshold value to the frequency of failure of nonroot bridge equipment transmission keep-alive message.Optionally; root bridge equipment is after a upper keep-alive message sends unsuccessfully; before sending next keep-alive message, can wait for a keep-alive time interval; after the keep-alive time interval arrives, judge again to the frequency of failure of nonroot bridge equipment transmission keep-alive message whether reached preset times threshold value and follow-up operation.
If judged result is yes, namely the frequency of failure to nonroot bridge equipment transmission keep-alive message reaches the preset times threshold value, illustrates that this WDS bridge joint has reached the maximum keep-alive time, and then root bridge equipment can finish the keep-alive handling process.
The MAC Address of above-mentioned keep-alive message is clean culture 4 addresses, and its source MAC is the MAC Address of root bridge equipment, and its target MAC (Media Access Control) address is the MAC Address of nonroot bridge equipment, and optionally its content can be empty (null data).
In the present embodiment, root bridge equipment and nonroot bridge equipment are set up after the WDS bridge joint, and root bridge equipment is by above-mentioned keep-alive handling process, keep the WDS bridge joint between itself and the nonroot bridge equipment.
The flow chart of another WDS bridge joint method for building up that Fig. 3 provides for the embodiment of the invention.As shown in Figure 3, the method for the present embodiment comprises:
If step 302 receives described beacon message, nonroot bridge equipment sends the nonroot bridge message to root bridge equipment on the working channel that receives this beacon message, to set up the WDS bridge joint with root bridge equipment, the source MAC of this nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of nonroot bridge equipment is the MAC Address of root bridge equipment.
In the present embodiment, root bridge equipment and nonroot bridge equipment can be that any use WDS bridge joint carries out the equipment in the interconnected network, for example can be AP.In the WDS bridge joint, distinguish root bridge (root-bridge) end and nonroot bridge (non-root-bridge) end, the present embodiment will be called as the equipment of root bridge end root bridge equipment, will be called as the equipment of nonroot bridge end nonroot bridge equipment.
Optionally, if root bridge equipment is AP, then need to create for root bridge equipment in advance the BSS of normal use, the BSSID of configuration root bridge equipment, and configuration root bridge equipment is operated in the root bridge pattern.Accordingly, the MAC Address of root bridge equipment can be the BSSID of root bridge equipment.
Optionally, if nonroot bridge equipment is AP, then need to be pre-created the normal BSS that uses of nonroot bridge equipment, the BSSID of configuration nonroot bridge equipment, and configuration nonroot bridge equipment is operated in the nonroot bridge pattern.Accordingly, the MAC Address of nonroot bridge equipment can be the BSSID of nonroot bridge equipment.
In this explanation, root bridge equipment and nonroot bridge equipment are AP, only are a kind of illustrating, and are not limited to this.
In the present embodiment, the MAC Address of pre-configured root bridge equipment on the nonroot bridge equipment.In order to set up the WDS bridge joint with root bridge equipment, nonroot bridge equipment is in the enterprising line scanning of each working channel of supporting, with beacon (beacon) message of finding that root bridge equipment sends; After finding the beacon message, nonroot bridge equipment compares the MAC Address of the source MAC of the beacon message found and pre-configured root bridge equipment, if both are identical, determine that this beacon message is the beacon message that root bridge equipment sends, and therefore receives this beacon message; If both are not identical, determine that this beacon message is not the beacon message that root bridge equipment sends, therefore abandon this beacon message.In fact described working channel refers to an operating frequency or frequency range.
Behind the beacon message that receives the transmission of root bridge equipment, nonroot bridge equipment sends the nonroot bridge message to root bridge equipment on the working channel that receives this beacon message, to set up the WDS bridge joint with root bridge equipment.Concrete, if the working channel of the current use of nonroot bridge equipment is the working channel of the beacon message that receives the transmission of root bridge equipment, then nonroot bridge equipment directly sends the nonroot bridge message to root bridge equipment on the working channel of current use; If the working channel of the current use of nonroot bridge equipment is not identical with the working channel of the beacon message that receives the transmission of root bridge equipment, then nonroot bridge equipment switches to the working channel that receives the beacon message that root bridge equipment sends from the working channel of current use, then on the working channel that switches to root bridge device transmits beacons message.
In this explanation, the above-mentioned working channel that receives the beacon message that root bridge equipment sends is the working channel that uses of root bridge equipment namely.
Wherein, the nonroot bridge message that nonroot bridge equipment sends to root bridge equipment is clean culture 4 address message of WDS agreement regulation, and its source MAC is that MAC Address, the target MAC (Media Access Control) address of nonroot bridge equipment is the MAC Address of root bridge equipment.
Wherein, a kind of optional execution mode of step 301 comprises: nonroot bridge equipment is from the working channel of current use, each working channel of nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives the beacon message that root bridge equipment sends with the MAC Address according to root bridge equipment.Concrete, nonroot bridge equipment at first scans the working channel of current use, after the working channel scanning of current use is finished, waits for a sweep spacing, and then next working channel scanned, carry out successively until all working channel all scanned finish.When all working channel is all scanned after one time, nonroot bridge equipment can continue each working channel is carried out the scanning second time.Described here working channel is scanned the working channel that in fact refers to described scanning monitor, to receive message at this working channel.
In an optional execution mode, nonroot bridge equipment is within the default scan period, from the working channel of current use, each working channel of nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives the beacon message that root bridge equipment sends with the MAC Address according to root bridge equipment.Concrete, nonroot bridge equipment can arrange the cycle that all working channel is scanned, within the scan period, according to default sweep spacing each working channel of supporting is scanned, when all working channel is all scanned after one time, can wait for a period of time, then enter the next scan period, restart the scanning to each working channel.Optionally, the time interval between two scan periods is greater than the sweep spacing of working channel being carried out scanning process.
In the present embodiment, nonroot bridge equipment is based on each working channel of supporting is scanned, and find root bridge equipment and set up the WDS bridge joint with root bridge equipment according to the MAC Address of pre-configured root bridge equipment, in this process, nonroot bridge equipment and root bridge equipment do not need to use special WDS message to consult alternately, realize relatively simply, improved the efficient that the WDS bridge joint is set up.In addition, concerning nonroot bridge equipment, the MAC Address of a pre-configured root bridge equipment of need does not need pre-configured and root bridge equipment is set up the information such as channel that the WDS bridge joint uses, and its configuration effort is relatively simple; Because the information of configuration is relatively simple, therefore the adaptive ability of the present embodiment method is stronger, when needs change the WDS bridge joint, the MAC Address that only need reconfigure root bridge equipment gets final product, do not need to reconfigure more information, compared with prior art, the required information that reconfigures will be lacked a lot, realizes relatively simple.
The flow chart of another WDS bridge joint method for building up that Fig. 4 provides for the embodiment of the invention.As shown in Figure 4, the method for the present embodiment comprises:
Step 401, nonroot bridge equipment receive the beacon message that root bridge equipment sends in the enterprising line scanning of each working channel of supporting with the MAC Address according to pre-configured root bridge equipment, and the source MAC of this beacon message is the MAC Address of root bridge equipment.
If step 402 receives described beacon message, nonroot bridge equipment sends the nonroot bridge message to root bridge equipment on the working channel that receives this beacon message, to set up the WDS bridge joint with root bridge equipment, the source MAC of this nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of nonroot bridge equipment is the MAC Address of root bridge equipment.
Step 401 and step 402 can referring to step 301 and step 302, not repeat them here.
Step 403, nonroot bridge equipment judge whether nonroot bridge equipment and root bridge equipment at the appointed time carried out message interaction in the scope; If the determination result is NO, namely nonroot bridge equipment and root bridge equipment did not at the appointed time carry out message interaction in the scope, and then execution in step 404; If judged result is yes; nonroot bridge equipment and root bridge equipment at the appointed time carried out message interaction in the scope; illustrate that the WDS bridge joint between nonroot bridge equipment and the root bridge equipment is also effective, do not need to carry out keep-alive and process, therefore this keep-alive handling process of nonroot bridge device end.
Step 404, nonroot bridge equipment send the keep-alive message to root bridge equipment, to keep the WDS bridge joint between nonroot bridge equipment and the root bridge equipment.
In the present embodiment, nonroot bridge equipment and root bridge equipment are set up after the WDS bridge joint, and nonroot bridge equipment is also kept WDS bridge joint between nonroot bridge equipment and the root bridge equipment by keepalive mechanism.
Nonroot bridge equipment can judge regularly whether nonroot bridge equipment and root bridge equipment at the appointed time carried out message interaction in the scope, in other words, nonroot bridge equipment regularly judges at the appointed time whether received the message of root bridge equipment transmission or sent message to root bridge equipment in the scope.If nonroot bridge equipment at the appointed time carried out message interaction with root bridge equipment in the scope, illustrate that the WDS bridge joint between nonroot bridge equipment and the root bridge equipment is also effective, then can not carry out keep-alive to this WDS bridge joint and process.If nonroot bridge equipment did not at the appointed time carry out message interaction with root bridge equipment in the scope; then the nonroot bridge device start is processed the keep-alive of this WDS bridge joint; namely send the keep-alive message to root bridge equipment, to keep the WDS bridge joint between nonroot bridge equipment and the root bridge equipment.
The size of above-mentioned fixed time scope can arrange according to application demand adaptability, such as being 1 minute, 1 second etc.
Wherein, after nonroot bridge equipment sends the keep-alive message to root bridge equipment, can wait for receiving the keep-alive response message that root bridge equipment returns for this keep-alive message.If nonroot bridge equipment receives the keep-alive response message that root bridge equipment returns, illustrate successfully the keep-alive message is sent to root bridge equipment; If nonroot bridge equipment does not receive the keep-alive response message that root bridge equipment returns, illustrate to root bridge equipment to send the failure of keep-alive message.Optionally, the nonroot bridge equipment records sends the frequency of failure of keep-alive message to root bridge equipment.Based on this, a kind of optional execution mode of step 404 comprises:
Nonroot bridge equipment judges to the frequency of failure of root bridge equipment transmission keep-alive message whether reached the preset times threshold value.If the determination result is NO, namely the frequency of failure to root bridge equipment transmission keep-alive message does not reach the preset times threshold value, illustrate that this WDS bridge joint can also continue keep-alive, then nonroot bridge equipment sends the keep-alive message to root bridge equipment, and waits for the keep-alive response message that reception root bridge equipment returns for this keep-alive message; If nonroot bridge equipment receives root bridge equipment for the keep-alive response message that this keep-alive message returns, then return to carry out and judge whether nonroot bridge equipment and root bridge equipment at the appointed time carried out the operation of message interaction in the scope; If nonroot bridge equipment does not receive the keep-alive response message that root bridge equipment returns for this keep-alive message; then nonroot bridge equipment will add 1 to the frequency of failure of root bridge equipment transmission keep-alive message, and return to carry out and judge the operation that whether has reached the preset times threshold value to the frequency of failure of root bridge equipment transmission keep-alive message.Optionally; nonroot bridge equipment is after a upper keep-alive message sends unsuccessfully; before sending next keep-alive message, can wait for a keep-alive time interval; after the keep-alive time interval arrives, judge again to the frequency of failure of root bridge equipment transmission keep-alive message whether reached preset times threshold value and follow-up operation.
If judged result is yes, namely the frequency of failure to root bridge equipment transmission keep-alive message reaches the preset times threshold value, illustrates that this WDS bridge joint has reached the maximum keep-alive time, and then nonroot bridge equipment can finish the keep-alive handling process.
The MAC Address of above-mentioned keep-alive message is clean culture 4 addresses, and its source MAC is the MAC Address of nonroot bridge equipment, and its target MAC (Media Access Control) address is the MAC Address of root bridge equipment, and optionally its content can be empty (null data).
In the present embodiment, root bridge equipment and nonroot bridge equipment are set up after the WDS bridge joint, and root bridge equipment is by above-mentioned keep-alive handling process, keep the WDS bridge joint between itself and the nonroot bridge equipment.
In this explanation; the WDS bridge joint is carried out in the process that keep-alive processes by send the keep-alive message to the opposite end at root bridge equipment or nonroot bridge equipment; the reception opposite end can be finished by the physical layer of root bridge equipment or nonroot bridge equipment for the operation of the keep-alive response message that the keep-alive message returns; the operation that judges whether to receive the keep-alive response message can be finished by the access physical layer by the WDS protocol layer of root bridge equipment or nonroot bridge equipment; wherein, the physical layer keep-alive response message that do not need to receive reports the WDS protocol layer.
The structural representation of a kind of WDS bridge joint apparatus for establishing that Fig. 5 provides for the embodiment of the invention.The WDS bridge joint apparatus for establishing of the present embodiment is arranged in the root bridge equipment to be realized, as shown in Figure 5, the device of the present embodiment comprises: monitor module 51, the first judge module 52 and set up module 53.
The first judge module 52 is connected with monitoring module 51, is used for judging between root bridge equipment and the nonroot bridge equipment whether set up the WDS bridge joint according to the nonroot bridge message when monitoring module 51 receives the nonroot bridge message.
Set up module 53, be connected with the first judge module 52, do not set up the WDS bridge joint for judging between root bridge equipment and the nonroot bridge equipment at the first judge module 52, the MAC Address of storage nonroot bridge equipment is also safeguarded the state of nonroot bridge equipment, to set up the WDS bridge joint between root bridge equipment and the nonroot bridge equipment.
Optionally, set up module 53 and specifically can be used for creating the managing listings that manages for to nonroot bridge equipment, MAC Address and the state information of nonroot bridge equipment stored in the managing listings, to set up the WDS bridge joint between root bridge equipment and the nonroot bridge equipment.
In an optional execution mode, as shown in Figure 6, the WDS bridge joint apparatus for establishing of the present embodiment also comprises: module 55 is kept in the second judge module 54 and keep-alive.
The second judge module 54 and is set up module 53 and is connected, and is used for judging setting up after module 53 sets up WDS bridge joint between root bridge equipment and the nonroot bridge equipment whether root bridge equipment and nonroot bridge equipment at the appointed time carried out message interaction in the scope.
As shown in Figure 6, keep-alive a kind of implementation structure of keeping module 55 comprises: judging unit 551, transmitting element 552 and receiving element 553.
Judging unit 551 is used for judging whether the frequency of failure to nonroot bridge equipment transmission keep-alive message has reached the preset times threshold value.
Transmitting element 552 is connected with judging unit 551, is used for when the determination result is NO, sending keep-alive message to nonroot bridge equipment at judging unit 551.
Receiving element 553; are connected with judging unit with the second judge module 54 and are connected; be used for when receiving the keep-alive response message that nonroot bridge equipment returns for the keep-alive message; trigger 54 execution of the second judge module and judge whether root bridge equipment and nonroot bridge equipment at the appointed time carried out the operation of message interaction in the scope; and when not receiving the keep-alive response message that nonroot bridge equipment returns for the keep-alive message; to add 1 to the frequency of failure of nonroot bridge equipment transmission keep-alive message, and trigger judging unit 551 and carry out whether judgement has reached operation from the preset times threshold value to the frequency of failure of nonroot bridge equipment transmission keep-alive message.Optionally, receiving element 553 is connected with transmitting element 552, is used for after transmitting element 552 sends the keep-alive message, waits for receiving the keep-alive response message that nonroot bridge equipment returns.
Each functional module of the WDS bridge joint apparatus for establishing that the present embodiment provides or unit can be used for the flow process of execution graph 1 or WDS bridge joint method for building up shown in Figure 2, and its specific works principle repeats no more, and sees the description of embodiment of the method for details.
The WDS bridge joint apparatus for establishing that the present embodiment provides, be arranged in the root bridge equipment and realize, by the monitoring to the working channel of the current use of root bridge equipment, and set up WDS bridge joint between root bridge equipment and the nonroot bridge equipment according to the nonroot bridge message that the nonroot bridge equipment that listens to sends, in this process, do not need to use special WDS message and the nonroot bridge equipment consult alternately, realize relatively simply, improved the efficient that the WDS bridge joint is set up.In addition, the WDS bridge joint apparatus for establishing of the present embodiment does not need the MAC Address of pre-configured nonroot bridge equipment, does not need pre-configured and nonroot bridge equipment to set up the information such as channel that the WDS bridge joint uses yet, and its configuration effort is relatively simple; Because the information of configuration is relatively simple, so the adaptive ability of the WDS bridge joint apparatus for establishing of the present embodiment is stronger, when needs change the WDS bridge joint, can change at any time, do not need to reconfigure any information.
The structural representation of another WDS bridge joint apparatus for establishing that Fig. 7 provides for the embodiment of the invention.The WDS bridge joint apparatus for establishing of the present embodiment is arranged in the nonroot bridge equipment to be realized, as shown in Figure 7, the device of the present embodiment comprises: scan module 71 and set up module 72.
Set up module 72, be connected with scan module 71, be used for when scan module 71 receives above-mentioned beacon message, on the working channel that receives the beacon message, send the nonroot bridge message to root bridge equipment, to set up the WDS bridge joint between nonroot bridge equipment and the root bridge equipment, the source MAC of this nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of nonroot bridge equipment is the MAC Address of root bridge equipment.
Optionally, scan module 71 specifically can be used for from the working channel of the current use of nonroot bridge equipment, each working channel of nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives the beacon message with the MAC Address according to root bridge equipment.
In an optional execution mode, as shown in Figure 8, the WDS bridge joint apparatus for establishing of the present embodiment also comprises: module 74 is kept in judge module 73 and keep-alive.
As shown in Figure 8, keep-alive a kind of implementation structure of keeping module 74 comprises: judging unit 741, transmitting element 742 and receiving element 743.
Judging unit 741 is used for judging whether the frequency of failure to root bridge equipment transmission keep-alive message has reached the preset times threshold value.
Transmitting element 742 is connected with judging unit 741, is used for when the determination result is NO, sending keep-alive message to root bridge equipment at judging unit 741.
Receiving element 743; are connected with judging unit with judge module 73 and are connected; be used for when receiving the keep-alive response message that root bridge equipment returns for the keep-alive message; trigger judge module 73 execution and judge whether nonroot bridge equipment and root bridge equipment at the appointed time carried out the operation of message interaction in the scope; and when not receiving the keep-alive response message that root bridge equipment returns for the keep-alive message; to add 1 to the frequency of failure of root bridge equipment transmission keep-alive message, and trigger judging unit 741 and carry out whether judgement has reached operation from the preset times threshold value to the frequency of failure of root bridge equipment transmission keep-alive message.Optionally, receiving element 743 is connected with transmitting element 742, is used for after transmitting element 742 sends the keep-alive message, waits for receiving the keep-alive response message that root bridge equipment returns.
Each functional module of the WDS bridge joint apparatus for establishing that the present embodiment provides or unit can be used for the flow process of execution graph 3 or WDS bridge joint method for building up shown in Figure 4, and its specific works principle repeats no more, and sees the description of embodiment of the method for details.
The WDS bridge joint apparatus for establishing that the present embodiment provides, be arranged in the nonroot bridge equipment and realize, scan by each working channel that nonroot bridge equipment is supported, and find root bridge equipment and set up the WDS bridge joint with root bridge equipment according to the MAC Address of pre-configured root bridge equipment, in this process, do not need to use special WDS message and the root bridge equipment consult alternately, realize relatively simply, improved the efficient that the WDS bridge joint is set up.In addition, the WDS bridge joint apparatus for establishing of the present embodiment only needs the MAC Address of pre-configured root bridge equipment, does not need pre-configuredly to set up the information such as channel that the WDS bridge joint uses with root bridge equipment, and its configuration effort is relatively simple; Because the information of configuration is relatively simple, therefore the adaptive ability of the WDS bridge joint apparatus for establishing of the present embodiment is stronger, when needs change the WDS bridge joint, the MAC Address that only need reconfigure root bridge equipment gets final product, do not need to reconfigure more information, compared with prior art, the required information that reconfigures will be lacked a lot, realizes relatively simple.
The embodiment of the invention provides a kind of network equipment, and above-mentioned Fig. 5 or the WDS bridge joint apparatus for establishing that provides embodiment illustrated in fig. 6 are provided.
The embodiment of the invention provides the another kind of network equipment, and above-mentioned Fig. 7 or the WDS bridge joint apparatus for establishing that provides embodiment illustrated in fig. 8 are provided.
The embodiment of the invention provides another network equipment, and above-mentioned Fig. 5 or the WDS bridge joint apparatus for establishing that provides embodiment illustrated in fig. 6 are provided, and above-mentioned Fig. 7 or the WDS bridge joint apparatus for establishing that provides embodiment illustrated in fig. 8.
The network equipment that the above embodiment of the present invention provides can be AP, but is not limited to this.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be finished by the relevant hardware of program command.Aforesaid program can be stored in the computer read/write memory medium.This program is carried out the step that comprises above-mentioned each embodiment of the method when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (15)
1. a wireless distribution system WDS bridge joint method for building up is characterized in that, comprising:
Root bridge equipment is monitored the working channel of current use, the nonroot bridge message that sends to receive nonroot bridge equipment, the source medium access control MAC Address of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment;
If receive described nonroot bridge message, described root bridge equipment judges between described root bridge equipment and the described nonroot bridge equipment whether set up the WDS bridge joint according to described nonroot bridge message;
If judge between described root bridge equipment and the described nonroot bridge equipment and do not set up the WDS bridge joint, the MAC Address of the described nonroot bridge equipment of described root bridge device storage is also safeguarded the state of described nonroot bridge equipment, to set up the WDS bridge joint with described nonroot bridge equipment.
2. WDS bridge joint method for building up according to claim 1 is characterized in that, the MAC Address of the described nonroot bridge equipment of described root bridge device storage is also safeguarded the state of described nonroot bridge equipment, comprises after setting up the WDS bridge joint with described nonroot bridge equipment:
Described root bridge equipment judges whether described root bridge equipment and described nonroot bridge equipment at the appointed time carried out message interaction in the scope;
If described root bridge equipment and described nonroot bridge equipment did not at the appointed time carry out message interaction in the scope, described root bridge equipment sends the keep-alive message to described nonroot bridge equipment, to keep the WDS bridge joint between described root bridge equipment and the described nonroot bridge equipment.
3. WDS bridge joint method for building up according to claim 1 and 2 is characterized in that, the MAC Address of described nonroot bridge equipment is the BSSID of described nonroot bridge equipment, and the MAC Address of described root bridge equipment is the BSSID of described root bridge equipment.
4. a wireless distribution system WDS bridge joint method for building up is characterized in that, comprising:
The enterprising line scanning of each working channel that nonroot bridge equipment is being supported, receive the beacon message that described root bridge equipment sends with the medium access control MAC Address according to pre-configured root bridge equipment, the source MAC of described beacon message is the MAC Address of described root bridge equipment;
If receive described beacon message, described nonroot bridge equipment sends the nonroot bridge message to described root bridge equipment on the working channel that receives described beacon message, to set up the WDS bridge joint with described root bridge equipment, the source MAC of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment.
5. WDS bridge joint method for building up according to claim 4, it is characterized in that, described nonroot bridge equipment is in the enterprising line scanning of each working channel of supporting, the beacon message that receives described root bridge equipment transmission with the MAC Address according to pre-configured root bridge equipment comprises:
Described nonroot bridge equipment is from the working channel of current use, and each working channel of described nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives described beacon message with the MAC Address according to described root bridge equipment.
6. WDS bridge joint method for building up according to claim 5, it is characterized in that, described nonroot bridge equipment is from the working channel of current use, each working channel of described nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives described beacon message with the MAC Address according to described root bridge equipment and comprises:
Described nonroot bridge equipment is within the default scan period, from the working channel of current use, each working channel of described nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives described beacon message with the MAC Address according to described root bridge equipment.
7. each described WDS bridge joint method for building up according to claim 4-6, it is characterized in that, described nonroot bridge equipment sends the nonroot bridge message to described root bridge equipment on the working channel that receives described beacon message, comprise after setting up the WDS bridge joint with described root bridge equipment:
Described nonroot bridge equipment judges whether described nonroot bridge equipment and described root bridge equipment at the appointed time carried out message interaction in the scope;
If described nonroot bridge equipment and described root bridge equipment did not at the appointed time carry out message interaction in the scope, described nonroot bridge equipment sends the keep-alive message to described root bridge equipment, to keep the WDS bridge joint between described nonroot bridge equipment and the described root bridge equipment.
8. each described WDS bridge joint method for building up is characterized in that according to claim 4-7, and the MAC Address of described nonroot bridge equipment is the BSSID of described nonroot bridge equipment, and the MAC Address of described root bridge equipment is the BSSID of described root bridge equipment.
9. a wireless distribution system WDS bridge joint apparatus for establishing is arranged in the root bridge equipment, it is characterized in that, described device comprises:
Monitor module, be used for the working channel of the current use of described root bridge equipment is monitored, the nonroot bridge message that sends to receive nonroot bridge equipment, the source medium access control MAC Address of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment;
The first judge module is used for judging between described root bridge equipment and the described nonroot bridge equipment whether set up the WDS bridge joint according to described nonroot bridge message when receiving described nonroot bridge message;
Set up module, do not set up the WDS bridge joint for judging between described root bridge equipment and the described nonroot bridge equipment at described the first judge module, store the MAC Address of described nonroot bridge equipment and safeguard the state of described nonroot bridge equipment, to set up the WDS bridge joint between described root bridge equipment and the described nonroot bridge equipment.
10. WDS bridge joint apparatus for establishing according to claim 9 is characterized in that, also comprises:
The second judge module is used for setting up after module sets up WDS bridge joint between described root bridge equipment and the described nonroot bridge equipment described, judges whether described root bridge equipment and described nonroot bridge equipment at the appointed time carried out message interaction in the scope;
Module is kept in keep-alive, is used for when the determination result is NO, sending the keep-alive message to described nonroot bridge equipment, to keep the WDS bridge joint between described root bridge equipment and the described nonroot bridge equipment at described the second judge module.
11. a wireless distribution system WDS bridge joint apparatus for establishing is arranged in the nonroot bridge equipment, it is characterized in that, described device comprises:
Scan module, for the enterprising line scanning of each working channel of supporting at described nonroot bridge equipment, receive the beacon message that described root bridge equipment sends with the medium access control MAC Address according to pre-configured root bridge equipment, the source MAC of described beacon message is the MAC Address of described root bridge equipment;
Set up module, be used for when receiving described beacon message, on the working channel that receives described beacon message, send the nonroot bridge message to described root bridge equipment, to set up the WDS bridge joint between described nonroot bridge equipment and the described root bridge equipment, the source MAC of described nonroot bridge message is that MAC Address, the target MAC (Media Access Control) address of described nonroot bridge equipment is the MAC Address of described root bridge equipment.
12. WDS bridge joint apparatus for establishing according to claim 11, it is characterized in that, described scan module specifically is used for from the working channel of the current use of described nonroot bridge equipment, each working channel of described nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives described beacon message with the MAC Address according to described root bridge equipment.
13. WDS bridge joint apparatus for establishing according to claim 12, it is characterized in that, described scan module specifically was used within the default scan period, from the working channel of the current use of described nonroot bridge equipment, each working channel of described nonroot bridge equipment being supported according to default sweep spacing scans one by one, receives described beacon message with the MAC Address according to described root bridge equipment.
14. each described WDS bridge joint apparatus for establishing is characterized in that according to claim 11-13, also comprises:
Judge module is used for setting up after module sets up WDS bridge joint between described nonroot bridge equipment and the described root bridge equipment described, judges whether described nonroot bridge equipment and described root bridge equipment at the appointed time carried out message interaction in the scope;
Module is kept in keep-alive, is used for when the determination result is NO, sending the keep-alive message to described root bridge equipment, to keep the WDS bridge joint between described nonroot bridge equipment and the described root bridge equipment at described judge module.
15. a network equipment is characterized in that, comprising: claim 9 or 10 described wireless distribution system WDS bridge joint apparatus for establishing, and/or, each described WDS bridge joint apparatus for establishing of claim 11-14.
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| CN103079284B (en) | 2016-05-04 |
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Address after: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee after: RUIJIE NETWORKS Co.,Ltd. Address before: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee before: Beijing Star-Net Ruijie Networks Co.,Ltd. |
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