CN101515879A - Method for establishing connection between bridges - Google Patents
Method for establishing connection between bridges Download PDFInfo
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- CN101515879A CN101515879A CNA2008100082805A CN200810008280A CN101515879A CN 101515879 A CN101515879 A CN 101515879A CN A2008100082805 A CNA2008100082805 A CN A2008100082805A CN 200810008280 A CN200810008280 A CN 200810008280A CN 101515879 A CN101515879 A CN 101515879A
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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 default channel, resumes connections again again.If should still have other radar signal by default 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 channel use amount inequality.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, it is applied to a communication system that comprises a plurality of bridgers and a plurality of channels, and 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 described subordinate bridger can't receive this line signal at its place channel, then described 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 described bridger is by this main bridger decision, but not is fixed in a default 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 as follows:
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 is applied to 802.11 communication systems that an Institute of Electrical and Electronics Engineers (IEEE) that comprises a plurality of bridgers and a plurality of channels is formulated.This flow chart is the operating procedure of the bridger in the described bridger.At step S1, determine that this bridger is main bridger or subordinate bridger.Present embodiment is according to the decision of the medium access control layer address (MAC address) of this bridger, the address maximum be main bridger.Yet if this communication system specifies a main bridger in advance, but direct omit step S1 according to its setting.At step S2, judge whether this bridger is main bridger; If then enter step S3; Otherwise enter 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 enters step S8.At step S4, this subordinate bridger is listened to this line signal at its place channel, and enters step S5.At step S5, judge whether this subordinate bridger receives this line signal; If do not have, then enter step S6; Otherwise enter 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 described 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 be reduced to reduce convertible number of channels, sets up the speed of line so as to speeding described bridger.This convertible channel also can be set by 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 described subordinate bridger are kept equates, when this main bridger restarts or this convertible channel list is when upgrading, this main bridger can send the convertible channel list of this renewal to described subordinate bridger, shown in step P1.At step P2, described subordinate bridger upgrades its convertible channel list, and enters step P3.At step P3, described subordinate bridger returns a confirmation signal to this main bridger.
Fig. 3 shows that it upgrades the flow chart of its convertible channel list when described subordinate bridger restarts.At step Q1, when described subordinate bridger restarts, described subordinate bridger can send one and require to upgrade the signal of this convertible channel list to this main bridger, so that the convertible channel list of this main bridger is synchronized with the convertible channel list of described 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 described subordinate bridger.At step Q3, this subordinate bridger upgrades its convertible channel list, and enters 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 described bridger is by this main bridger decision, but not is fixed in a default 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 may 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 (19)
1. method of setting up connection between bridges is applied to a communication system that comprises a plurality of bridgers and a plurality of channels, and this method comprises the following step:
One main bridger sends a line signal;
At least one subordinate bridger is listened to this line signal at its place channel; And
If described at least one subordinate bridger can't receive this line signal at its place channel, then described at least one subordinate bridger is converted to another channel.
2. according to the process of claim 1 wherein that described bridger determines according to its medium access control layer address whether it is this main bridger.
3. according to the process of claim 1 wherein that described bridger determines according to its medium access control layer address whether it is described at least one subordinate bridger.
4. according to the process of claim 1 wherein that this line signal comprises the medium access control layer address of this main bridger.
5. according to the method for claim 1, it also comprises the following step:
If described at least one subordinate bridger receives the line signal, then transmit a confirmation signal to this main bridger.
6. according to the method for claim 5, it also comprises the following step:
If in a set time, this main bridger is not received the affirmation signal of this subordinate bridger as yet, then stops to send this line signal.
7. according to the method for claim 6, wherein this set time is nine minutes.
8. according to the method for claim 5, it also comprises the following step:
If this main bridger receives the affirmation signal of all described at least one subordinate bridgers, then stop to send this line signal.
9. according to the method for claim 1, it also comprises the following step:
If this main bridger restarts or convertible channel is changed, then this main bridger sends the convertible channel information of renewal to this at least one subordinate bridger.
10. according to the method for claim 9, it also comprises the following step:
If this at least one subordinate bridger receives the convertible channel information of this renewal, then return a confirmation signal to this main bridger.
11. according to the method for claim 1, it also comprises the following step:
If described at least one subordinate bridger restarts, then it sends one and requires to upgrade the signal of this convertible channel information to this main bridger.
12. according to the method for claim 11, it also comprises the following step:
If when this main bridger received the signal of this requirement renewal, the signal that then returns this convertible channel information was to this subordinate bridger.
13. according to the method for claim 12, it also comprises the following step:
If this subordinate bridger receives this convertible channel information, then return a confirmation signal to this main bridger.
14. according to the process of claim 1 wherein that the convertible number of channels of described bridger is less than the number of channels in this communication system.
15. according to the process of claim 1 wherein that the convertible channel of described bridger can be by external setting-up.
16. according to the process of claim 1 wherein that this convertible channel is determined by this main bridger.
17. according to the process of claim 1 wherein that the convertible channel of described bridger is according to a convertible channel list decision.
18., just carry out each step when its bridger generation line in this communication system interrupts according to the method for claim 1.
19. according to the process of claim 1 wherein that this 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810008280A CN101515879B (en) | 2008-02-18 | 2008-02-18 | Method for establishing connection between bridges |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101515879A true CN101515879A (en) | 2009-08-26 |
| CN101515879B CN101515879B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810008280A Expired - Fee Related CN101515879B (en) | 2008-02-18 | 2008-02-18 | Method for establishing connection between bridges |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104869644A (en) * | 2014-02-21 | 2015-08-26 | 华为技术有限公司 | Data transmission method and devices |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9089004B2 (en) * | 2003-04-09 | 2015-07-21 | Koninklijke Philips N.V. | 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 |
-
2008
- 2008-02-18 CN CN200810008280A patent/CN101515879B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104869644A (en) * | 2014-02-21 | 2015-08-26 | 华为技术有限公司 | Data transmission method and devices |
| CN104869644B (en) * | 2014-02-21 | 2019-02-05 | 华为技术有限公司 | A kind of data transmission method and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101515879B (en) | 2012-09-05 |
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