CN101515879B - Method for establishing connection between bridges - Google Patents
Method for establishing connection between bridges Download PDFInfo
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- CN101515879B CN101515879B CN200810008280A CN200810008280A CN101515879B CN 101515879 B CN101515879 B CN 101515879B CN 200810008280 A CN200810008280 A CN 200810008280A CN 200810008280 A CN200810008280 A CN 200810008280A CN 101515879 B CN101515879 B CN 101515879B
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- bridger
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Abstract
The invention relates to a method for establishing the connection between bridges. The method for establishing the connection between bridges comprises the following steps that: a main bridge transmits a connection signal; at least one subordinate bridge listens to the connection signal at a frequency channel of the subordinate bridge; and if the subordinate bridge can not receive the connection signal at the frequency channel of the subordinate bridge, the subordinate bridge switches to another frequency channel. The method for establishing the connection between bridges can be used for reestablishing the connection when any bridge in a communication system is disconnected. In addition, the frequency channel used by the bridge is determined by the main bridge instead of being fixed in a preset frequency channel selecting sequence list. Therefore, a communication system is enabled to use the frequency channel more evenly.
Description
Technical field
The present invention relates to connection establishment method, and more particularly, relate to the connection establishment method that is applied to bridger (bridge).
Background technology
Bridger is a kind of in order to connect the communication equipment of heterogeneous networks section, for example connects two Ethernets (Ethernet) or connects an annular section network (Token Ring) to an Ethernet.When bridger was applied to communication system, most likely with the interconnection of other bridger, yet it in use, sometimes because signal is more weak or other cause specific and the bridger interruption line that links to each other with it.
In addition, part national regulation radio area network need adopt cynamic channel to select the technology of (DynamicFrequency Selection).In other words, the bridger that is applied to radio area network need skip to another interference-free channel, thereby the bridger that causes linking to each other interrupts line when detecting its place channel and have a radar signal.Therefore, be necessary to set a mechanism and when bridger interrupts line, recover its line.
Known bridger preestablishes one group of channel selection sequential list, and when the bridger in the communication system detected a radar signal, the bridger in this communication system all skipped to a preset channel, resumes connections again again.If should still have other radar signal by preset channel, then the bridger in this communication system skips to next channel predetermined again.
Yet because known bridger utilizes this channel selection sequential list, so higher its use amount of channel of priority is also higher, so can cause the channel use amount uneven.In addition, its channel selection sequential list of different communication systems may be overlapping and disturb each other.In addition, known bridger starts the mechanism of this channel selection sequential list when detecting a radar signal.If yet the line that causes because of other factors interrupt, it still needs the line by manual this bridger of recovery, very inconvenience.Therefore, be necessary that the mechanism that designs can resume connections the bridger in the communication system automatically when line interrupts, and can on average use the channel in this communication system.
Summary of the invention
The method of setting up connection between bridges of one embodiment of the invention, its be applied to one comprise a plurality of bridgers and a plurality of channels communication system, this method comprises the following step: a main bridger sends a line signal; At least one subordinate bridger is listened to this line signal at its place channel; If said subordinate bridger can't receive this line signal at its place channel, then said subordinate bridger is converted to another channel.
When the method for setting up connection between bridges of the present invention can the arbitrary bridger in this communication system be interrupted line, rebulid line.In addition, the employed channel of said bridger is by this main bridger decision, but not is fixed in a preset channel selection sequential list, therefore can make the average use channel of this communication system.
Description of drawings
Fig. 1 shows the flow chart of setting up the connection between bridges method of one embodiment of the invention;
Fig. 2 shows that main bridger of the present invention upgrades the flow chart of its convertible channel list; And
Fig. 3 shows that subordinate bridger of the present invention upgrades the flow chart of its convertible channel list.
Wherein, description of reference numerals is following:
S1～S8 step
P1～P3 step
Q1～Q4 step
Embodiment
Fig. 1 shows the flow chart of setting up the connection between bridges method of one embodiment of the invention.This method be applied to one comprise a plurality of bridgers and a plurality of channels 802.11 communication systems formulated of Institute of Electrical and Electronics Engineers (IEEE).This flow chart is the operating procedure of the bridger in the said bridger.At step S1, determine that this bridger is main bridger or subordinate bridger.Present embodiment is according to medium access control layer address (MAC address) decision of this bridger, and what the address was maximum is main bridger.Yet, but directly according to its setting and omit step S1 if this communication system is specified a main bridger in advance.At step S2, judge whether this bridger is main bridger; If then get into step S3; Otherwise get into step S4.At step S3, this main bridger sends a line signal, and it comprises the medium access control layer address of this main bridger, and gets into step S8.At step S4, this subordinate bridger is listened to this line signal at its place channel, and gets into step S5.At step S5, judge whether this subordinate bridger receives this line signal; If do not have, then get into step S6; Otherwise get into step S7.At step S6, this subordinate bridger is converted to another channel, and gets back to step S4 and continue to listen to.At step S7, this subordinate bridger sends a confirmation signal and informs this main bridger it has received this line signal, and finishes its line operation.At step S8, judge whether this main bridger has received the affirmation signal of all subordinate bridgers; If have, then finish its line operation; Otherwise get back to step S3.In addition, when step S3, if this main bridger does not receive the affirmation signal of all subordinate bridgers in a set time, for example: in nine minutes, then also finish its line operation.
Under normal operation, the convertible number of channels of said bridger equals the number of channels in this communication system.Yet it also can be limited to less number of channels.For example bigger as if some channel noise, or some channel is used for indoor use, and suchlike channel all can further reduce to reduce convertible number of channels, sets up the speed of line so as to speeding said bridger.This convertible channel also can be set through the outside, to increase the elasticity of this bus connection method.
Preferably, this convertible channel can be recorded in a convertible channel list.This convertible channel list is determined by this main bridger.As shown in Figure 2; For the convertible channel list that this main bridger and said subordinate bridger are kept equates; When this main bridger restarts or this convertible channel list is when upgrading; This main bridger can send convertible channel list to the said subordinate bridger of this renewal, shown in step P1.At step P2, said subordinate bridger upgrades its convertible channel list, and gets into step P3.At step P3, said subordinate bridger returns a confirmation signal to this main bridger.
Fig. 3 shows that when said subordinate bridger restarted, it upgraded the flow chart of its convertible channel list.At step Q1; When said subordinate bridger restarts; Said subordinate bridger can send the signal of this convertible channel list of requirement renewal to this main bridger, so that the convertible channel list of this main bridger is synchronized with the convertible channel list of said subordinate bridger.At step Q2, treat that this main bridger receives the signal that this requirement upgrades after, this main bridger can send this convertible channel list to said subordinate bridger.At step Q3, this subordinate bridger upgrades its convertible channel list, and gets into step Q4.At step Q4, this subordinate bridger returns a confirmation signal to this main bridger.
In sum, when the method for setting up connection between bridges of the present invention can the arbitrary bridger in this communication system be interrupted line, rebulid line.In addition, the employed channel of said bridger is by this main bridger decision, but not is fixed in a preset channel selection sequential list, therefore can make the average use channel of this communication system.
Technology contents of the present invention and technical characterstic disclose as above, yet the those skilled in the art still maybe be based on instruction of the present invention and announcement and done all replacement and modifications that does not deviate from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to the scope that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by the scope of appending claims.
Claims (18)
1. method of setting up connection between bridges, be applied to one comprise a plurality of bridgers and a plurality of channels communication system, it is characterized in that said method comprises the following step:
One main bridger sends a line signal;
At least one subordinate bridger is listened to said line signal at its place channel;
If said at least one subordinate bridger receives said line signal, then said at least one subordinate bridger transmits a confirmation signal to main bridger and sets up line with said main bridger; And
If said at least one subordinate bridger can't receive said line signal at its place channel, then said at least one subordinate bridger is converted to another channel.
2. according to the process of claim 1 wherein whether it is said main bridger to said bridger according to its medium access control layer address decision.
3. according to the process of claim 1 wherein whether it is said at least one subordinate bridger to said bridger according to its medium access control layer address decision.
4. according to the process of claim 1 wherein that said line signal comprises the medium access control layer address of said main bridger.
5. according to the method for claim 1, it also comprises the following step:
If in a set time, said main bridger is not received the affirmation signal of said subordinate bridger as yet, then stops to send said line signal.
6. according to the method for claim 5, the wherein said set time is nine minutes.
7. according to the method for claim 1, it also comprises the following step:
If said main bridger receives the affirmation signal of all said at least one subordinate bridgers, then stop to send said line signal.
8. according to the process of claim 1 wherein the convertible channel of said bridger according to convertible channel list decision, and said convertible channel list is determined by said main bridger.
9. according to Claim 8 method, it also comprises the following step:
If said main bridger restarts or convertible channel is changed, then said main bridger sends convertible channel list to the said at least one subordinate bridger that upgrades.
10. according to the method for claim 9, it also comprises the following step:
If said at least one subordinate bridger receives the convertible channel list of said renewal, then return a confirmation signal to said main bridger.
11. according to the method for claim 10, it also comprises the following step:
If said at least one subordinate bridger restarts, then it sends signal to the said main bridger that said convertible channel list is upgraded in a requirement.
12. according to the method for claim 11, it also comprises the following step:
When if said main bridger receives the signal of said requirement renewal, then return signal to the said subordinate bridger of said convertible channel list.
13. according to the method for claim 12, it also comprises the following step:
If said subordinate bridger receives said convertible channel list, then return a confirmation signal to said main bridger.
14. according to the process of claim 1 wherein that the convertible number of channels of said bridger is less than the number of channels in the said communication system.
15. according to the process of claim 1 wherein that the convertible channel of said bridger can be by external setting-up.
16. according to the method for claim 14, wherein this convertible channel is determined by this main bridger.
17., just carry out each step when its bridger generation line in said communication system interrupts according to the method for claim 1.
18. according to the process of claim 1 wherein that said communication system is 802.11 the standard that Institute of Electrical and Electronics Engineers is formulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810008280A CN101515879B (en) | 2008-02-18 | 2008-02-18 | Method for establishing connection between bridges |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810008280A CN101515879B (en) | 2008-02-18 | 2008-02-18 | Method for establishing connection between bridges |
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| Publication Number | Publication Date |
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| CN101515879A CN101515879A (en) | 2009-08-26 |
| CN101515879B true CN101515879B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810008280A Expired - Fee Related CN101515879B (en) | 2008-02-18 | 2008-02-18 | Method for establishing connection between bridges |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104869644B (en) * | 2014-02-21 | 2019-02-05 | 华为技术有限公司 | A kind of data transmission method and equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771696A (en) * | 2003-04-09 | 2006-05-10 | 皇家飞利浦电子股份有限公司 | Network with subnets being connectable via bridge terminals |
| CN1946044A (en) * | 2005-10-09 | 2007-04-11 | 神州亿品科技有限公司 | Self configuration radio net bridge network and its realizing and automatically restoring method |
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2008
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771696A (en) * | 2003-04-09 | 2006-05-10 | 皇家飞利浦电子股份有限公司 | Network with subnets being connectable via bridge terminals |
| CN1946044A (en) * | 2005-10-09 | 2007-04-11 | 神州亿品科技有限公司 | Self configuration radio net bridge network and its realizing and automatically restoring method |
Non-Patent Citations (1)
| Title |
|---|
| 张晓彤等.嵌入式HFC透明网桥实现技术研究.《小型微型计算机系统》.2006,第27卷(第7期),1153-1157. * |
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| CN101515879A (en) | 2009-08-26 |
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Granted publication date: 20120905 Termination date: 20190218 |