CN102118215B - Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device - Google Patents
Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device Download PDFInfo
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- CN102118215B CN102118215B CN 200910258904 CN200910258904A CN102118215B CN 102118215 B CN102118215 B CN 102118215B CN 200910258904 CN200910258904 CN 200910258904 CN 200910258904 A CN200910258904 A CN 200910258904A CN 102118215 B CN102118215 B CN 102118215B
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Abstract
The invention discloses a method and equipment for supporting over-long transmission distance of a distance-enhanced Ethernet device. The method includes the following steps: electrifying an LRE (Long Reach Ethernet) device; conducting link negotiation with a link end-to-end device by using an LDS (Local Distribution Service) auto-negotiation mode; if discovering that the LDS auto-negotiation fails, conducting link negotiation with the link end-to-end device by using a preset work mode supporting over-long transmission distance; and if not, communicating with the end-to-end device by using the work mode supporting over-long transmission distance. With the invention, the LRE device can support the over-long distance transmission.
Description
Technical field
The present invention relates to the link negotiation technical field, be specifically related to apart from enhanced ethernet equipment support the method for ultra-long transmission distance and support the ultra-long transmission distance apart from enhanced ethernet equipment.
Background technology
Use link discovery signaling (LDS, Link Discovery Signaling) to finish the function of link negotiation apart from enhanced ethernet (LRE, Long Range Ethernet).Wherein, the content of link negotiation comprises: the determining of master-slave relationship; Estimate length of cable; Determine effective twisted-pair feeder logarithm, and line is to order; Determine the peak work capacity that both link ends is all supported.
LDS can support 10Mbps/1 to line, 10Mbps/2 to line, 100Mbps/1 to line, 100Mbps/2 to line, 100Mbps/4 to these five mode of operations of line.During the LDS device power, need to adopt successively each mode of operation and link opposite equip. to carry out the LDS auto-negotiation, if under certain mode of operation, consult successfully, then adopt this mode of operation work.
Fig. 1 is existing LDS auto-negotiation method flow chart, and as shown in Figure 1, its concrete steps are as follows:
Step 101:LRE device A powers on, and reads the mode of operation in the default LDS capability option, establishes mode of operation and is followed successively by: 10Mbps/1 to line, 10Mbps/2 to line, 100Mbps/1 to line, 100Mbps/2 to line, 100Mbps/4 to line.
Step 102:LRE device A reads a mode of operation successively from the LDS capability option, the LRE port of self is set to adopt this mode of operation, and beginning and opposite equip.: the LRE equipment B is carried out link negotiation.
Need to finish in the link negotiation process: the determining of master-slave relationship; Estimate length of cable; Determine that effective twisted-pair feeder logarithm and line are to order; Determine the negotiation of this 4 aspects of peak work capacity that both link ends is all supported.
Step 103:LRE device A judges whether to consult successfully, if, execution in step 104; Otherwise, return step 102.
Step 104:LRE device A adopts work at present pattern and LRE equipment B to communicate.
Since 10Mbps/1 to line, 10Mbps/2 to line, 100Mbps/1 to line, 100Mbps/2 to line, 100Mbps/4 to these 5 kinds of mode of operations of line under, when using ordinary telephone line to make transmission medium, transmission range is about 700 meters farthest.In order to support farther transmission range, need to use 10Mbps/4 to the mode of operation of line, but this mode of operation does not embody in the LDS capability option, therefore, LRE equipment can't be consulted into this 10Mbps/4 to lineman's operation mode when carrying out the LDS auto-negotiation.If current transmission range need to adopt this 10Mbps/4 to lineman's operation mode, need keeper's manual configuration on LRE equipment.But LRE equipment does not have the applied environment of manual configuration under many circumstances, needs a kind of LRE equipment badly and can automatically adopt 10Mbps/4 to the scheme of lineman's operation mode according to the transmission range needs.
Summary of the invention
The invention provides the LRE equipment that LRE equipment is supported the method for ultra-long transmission distance and supported the ultra-long transmission distance, to realize that LRE equipment when needs carry out the extra long distance transmission, can adopt the mode of operation of supporting the ultra-long transmission distance automatically.
Technical scheme of the present invention is achieved in that
A kind of method apart from enhanced ethernet equipment support ultra-long transmission distance, the method comprises:
Apart from enhanced ethernet LRE device power, use link discovery signaling LDS auto negotiation mode and link opposite equip. to carry out link negotiation, find the failure of LDS auto-negotiation, then adopt mode of operation and the opposite equip. of default support ultra-long transmission distance to carry out link negotiation, consult successfully, adopt the mode of operation of this support ultra-long transmission distance to communicate by letter with opposite equip..
In advance at each LRE equipment configuration the first duration and the second duration;
Described LDS auto-negotiation unsuccessfully is: find not success of LDS auto-negotiation in the first duration;
The mode of operation of described ultra-long transmission distance is consulted: find in the second duration, adopt mode of operation and the opposite equip. of default support ultra-long transmission distance to consult successfully.
Described the first duration is not equal to the second duration.
The mode of operation of described support ultra-long transmission distance is: 10Mbps/4 is to lineman's operation mode.
The mode of operation of the support ultra-long transmission distance that described employing is default and opposite equip. carry out further comprising after the link negotiation: find to consult unsuccessfully, then return the action that described use LDS auto negotiation mode and link opposite equip. carry out link negotiation.
In advance at each LRE equipment configuration the 3rd duration, and the 3rd duration is greater than the first duration, the second duration sum,
And described discovery in the first duration the LDS auto-negotiation after the success, adopt mode of operation and the opposite equip. of default support ultra-long transmission distance to carry out further comprising before the link negotiation:
Judge whether the total duration of this link negotiation is not less than the 3rd duration, if determine this link negotiation procedure failure; Otherwise, carry out the mode of operation of the default support ultra-long transmission distance of described employing and the action that opposite equip. carries out link negotiation;
And after the mode of operation of described ultra-long transmission distance is consulted unsuccessfully, return described use LDS auto negotiation mode and further comprise before with the action that the link opposite equip. carries out link negotiation:
Judge whether the total duration of this link negotiation is not less than the 3rd duration, if determine this link negotiation procedure failure; Otherwise, carry out the described described action of using LDS auto negotiation mode and link opposite equip. to carry out link negotiation of returning.
A kind of support the ultra-long transmission distance apart from enhanced ethernet equipment, this equipment comprises:
LDS auto-negotiation module when this LRE device power, uses LDS auto negotiation mode and link opposite equip. to carry out link negotiation, finds the failure of LDS auto-negotiation, then sends apart from the link negotiation module to ultra-long transmission to start indication;
Ultra-long transmission receives to start and indicates apart from the link negotiation module, adopts mode of operation and the opposite equip. of default support ultra-long transmission distance to carry out link negotiation, consults successfully, sends the mode of operation of this support ultra-long transmission distance to transport module;
Transport module receives the mode of operation of supporting the ultra-long transmission distance, adopts this mode of operation to communicate by letter with opposite equip..
Described LDS auto-negotiation module is further used for, and records the first duration, and when the LDS auto-negotiation of discovery in the first duration and between the opposite equip. is successful, sends described enabled instruction to ultra-long transmission apart from the link negotiation module.
Described ultra-long transmission is further used for apart from the link negotiation module, record the second duration, and when find in the second duration and the ultra-long transmission between the opposite equip. when consulting success, send to described LDS auto-negotiation module and to start indication, wherein, the second duration is not equal to the first duration;
And described LDS auto-negotiation module is received described startup indication, reuses the LDS auto negotiation mode and the link opposite equip. carries out link negotiation.
Described equipment further comprises: module when link negotiation amounts to, be used for when receiving the beginning timing indication that LDS auto-negotiation module is sent, beginning timing, when clocking value arrives default the 3rd duration, send simultaneously timing arrival indication to LDS auto-negotiation module and ultra-long transmission apart from the link negotiation module, wherein, the 3rd duration is greater than the first duration, the second duration sum;
And described LDS auto-negotiation module is further used for, when beginning to adopt LDS auto negotiation mode and link opposite equip. to hold consultation for the first time, module sends beginning timing indication when amounting to link negotiation, and when finding that at every turn the LDS auto-negotiation is not successful in the first duration, judge whether to receive that the timing that module was sent when link negotiation amounted to arrives indication, if receive, determine this link negotiation procedure failure; Otherwise, send the startup indication to ultra-long transmission apart from the link negotiation module;
And described ultra-long transmission is further used for apart from the link negotiation module, when consulting success, judges whether to receive that the timing that module was sent when link negotiation amounted to arrives indication at each ultra-long transmission, if receive, then determines this link negotiation procedure failure; Otherwise, send the startup indication to LDS auto-negotiation module.
Compared with prior art, among the present invention, LRE equipment is when the failure of LDS auto-negotiation, then adopt and support the mode of operation of ultra-long transmission distance to carry out link negotiation, so that LRE equipment is when needs carry out the extra long distance transmission, can automatically adopt the mode of operation of supporting the ultra-long transmission distance, thereby so that LRE equipment can be supported the extra long distance transmission.
Description of drawings
Fig. 1 is existing LDS auto-negotiation method flow chart;
The LRE equipment that Fig. 2 provides for the embodiment of the invention is supported the method flow diagram of ultra-long transmission distance;
The structure composition diagram of the LRE equipment of the support ultra-long transmission distance that Fig. 3 provides for the embodiment of the invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The LRE equipment that Fig. 2 provides for the embodiment of the invention is supported the method flow diagram of ultra-long transmission distance, and as shown in Figure 2, its concrete steps are as follows:
Step 201: dispose LDS auto-negotiation duration T1, support ultra-long transmission apart from negotiation duration T2 and the total duration T3 of link negotiation of mode of operation at each LRE equipment in advance, and T1 ≠ T2, T3＞T1+T2.
Here, support that the mode of operation of ultra-long transmission distance can be that 10Mbps/4 is to lineman's operation mode.
Step 202: arbitrary LRE equipment: the LRE device A powers on.
Step 203:LRE device A is used LDS auto negotiation mode and link opposite equip.: the LRE equipment B is carried out link negotiation.
This step is identical with existing LDS auto-negotiation process.
Step 204:LRE device A judges whether LDS auto-negotiation success in the T1 duration, if, execution in step 205; Otherwise, execution in step 206.
If the success of LDS auto-negotiation, the link between proof LRE device A this moment, B namely so: telephone wire connects distance within 700 meters, does not need to adopt the mode of operation of supporting to surpass 700 meters distances.
Step 205:LRE device A adopts successful mode of operation and the LRE equipment B of negotiation to communicate, and this flow process finishes.
Step 206:LRE device A judges whether the total duration of this link negotiation is not less than T3, if, determine this link negotiation procedure failure, this flow process finishes; Otherwise, execution in step 207.
The mode of operation that step 207:LRE device A LRE port is set to support the ultra-long transmission distance as: 10Mbps/4 uses LDS and LRE equipment B to carry out link negotiation to lineman's operation mode by this port.
The link negotiation content of this step is identical with LDS auto-negotiation content, comprising: the determining of master-slave relationship; Estimate length of cable; Determine effective twisted-pair feeder logarithm, and line is to order; Determine the peak work capacity that both link ends is all supported.
Step 208:LRE device A judges whether to consult successfully in the T2 duration, if, execution in step 209; Otherwise, execution in step 210.
The mode of operation that step 209:LRE device A adopt to be supported the ultra-long transmission distance as: 10Mbps/4 communicates lineman's operation mode and LRE equipment B, the end of this flow process.
Step 210:LRE device A judges whether the total duration of this link negotiation is not less than T3, if, determine this link negotiation procedure failure, this flow process finishes; Otherwise, go to step 203.
When the LRE device A powers on and LRE equipment B when not powering on, can cause the link negotiation failure, at this moment, the LRE device A need to repeat the link negotiation process.
In addition, need to prove, because both link ends equipment: LRE device A, B power on constantly might be identical also might be different, if such T1=T2, establishing T1, T2 all is 1 second, then powering on of LRE device A, B differed 1 second constantly just, then LRE device A, B just may be in opposite mode of operation all the time each other, and when namely an end was the LDS auto negotiation mode, the other end was exactly that 10Mbps/4 is to ray mode, perhaps opposite, LRE device A, B will fail to consultations all the time like this.And if no matter T1 ≠ T2 is that LRE device A, B power on simultaneously or do not power on simultaneously then, always there are time period LRE device A, a B can be in identical mode of operation, thus so that link negotiation success.Therefore, in the embodiment of the invention, set T1 ≠ T2.
The structure composition diagram of the LRE equipment of the support ultra-long transmission distance that Fig. 3 provides for the embodiment of the invention, as shown in Figure 3, it mainly comprises: module 34 when LDS auto-negotiation module 31, ultra-long transmission amount to apart from link negotiation module 32, transport module 33 and link negotiation, wherein:
LDS auto-negotiation module 31: when finding this device power, adopt LDS auto negotiation mode and link opposite equip. to hold consultation, if consult successfully, then the work at present pattern is sent to transport module 33; If consult unsuccessfully, then send to start apart from link negotiation module 32 to ultra-long transmission and indicate.
Here, LDS auto-negotiation module 31 is further used for, and records the first duration, and when finding that the LDS auto-negotiation is successful in the first duration, sends the startup indication to ultra-long transmission apart from link negotiation module 32.
Ultra-long transmission is apart from link negotiation module 32: receive the startup indication that LDS auto-negotiation module 31 is sent, adopt default mode of operation and the opposite equip. of ultra-long transmission distance supported to carry out link negotiation, if consult successfully, send the mode of operation that this supports the ultra-long transmission distance to transport module 33.
Here, ultra-long transmission is further used for apart from link negotiation module 32, record the second duration, and when finding that ultra-long transmission is successful apart from negotiation in the second duration, send the startup indication to LDS auto-negotiation module 31, and LDS auto-negotiation module 31 is received this startup indication, again adopts LDS auto negotiation mode and link opposite equip. to hold consultation.Wherein, the second duration is not equal to the first duration.
Transport module 33: receive the mode of operation that LDS auto-negotiation module 31 or ultra-long transmission are sent apart from link negotiation module 32, adopt this mode of operation and opposite equip. to communicate.
In actual applications, module 34 can begin timing when link negotiation amounted to when receiving the beginning timing indication that LDS auto-negotiation module 31 is sent, when clocking value arrives default the 3rd duration, send simultaneously timing arrival indication to LDS auto-negotiation module 31 and ultra-long transmission apart from link negotiation module 32, wherein, the 3rd duration is greater than first and second duration sum.
And, LDS auto-negotiation module 31 is when beginning to adopt LDS auto negotiation mode and link opposite equip. to hold consultation for the first time, module sends beginning timing indication when amounting to link negotiation, and when finding that at every turn the LDS auto-negotiation is not successful in the first duration, judge whether to receive that the timing that module 34 was sent when link negotiation amounted to arrives indication, if receive, determine this link negotiation procedure failure, if do not receive, then send to start apart from link negotiation module 32 to ultra-long transmission and indicate.
Simultaneously, ultra-long transmission apart from link negotiation module 32 at each ultra-long transmission when consulting success, judge whether to receive that the timing that module 34 was sent when link negotiation amounted to arrives indication, if receive, then determine this link negotiation procedure failure; If do not receive, then send to start to LDS auto-negotiation module 31 and indicate.
The above only is process of the present invention and embodiment of the method, not in order to limiting the present invention, all any modifications of making within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. support the method for ultra-long transmission distance to it is characterized in that the method comprises apart from enhanced ethernet equipment for one kind:
Apart from enhanced ethernet LRE device power, use link discovery signaling LDS auto negotiation mode and link opposite equip. to carry out link negotiation, when finding the failure of LDS auto-negotiation, adopt mode of operation and the opposite equip. of default support ultra-long transmission distance to carry out link negotiation, when the mode of operation of the default support ultra-long transmission distance of this employing and opposite equip. carry out link negotiation when successful, adopt the mode of operation of this support ultra-long transmission distance to communicate by letter with opposite equip..
2. the method for claim 1 is characterized in that, in advance at each LRE equipment configuration the first duration and the second duration;
Described LDS auto-negotiation unsuccessfully is: find not success of LDS auto-negotiation in the first duration;
The mode of operation of the support ultra-long transmission distance that described employing is default and opposite equip. carry out link negotiation and successfully are: find in the second duration, adopt the mode of operation of default support ultra-long transmission distance and opposite equip. to carry out the link negotiation success.
3. method as claimed in claim 2 is characterized in that, described the first duration is not equal to the second duration.
4. the method for claim 1 is characterized in that, the mode of operation of described support ultra-long transmission distance is: 10Mbps/4 is to lineman's operation mode.
5. method as claimed in claim 2 or claim 3, it is characterized in that, the mode of operation of the support ultra-long transmission distance that described employing is default and opposite equip. carry out further comprising after the link negotiation: find that the mode of operation of the support ultra-long transmission distance that this employing is default and opposite equip. carry out the link negotiation failure, then return the action that described use LDS auto negotiation mode and link opposite equip. carry out link negotiation.
6. method as claimed in claim 5 is characterized in that, in advance at each LRE equipment configuration the 3rd duration, and the 3rd duration is greater than the first duration, the second duration sum,
And described discovery in the first duration the LDS auto-negotiation after the success, adopt mode of operation and the opposite equip. of default support ultra-long transmission distance to carry out further comprising before the link negotiation:
Judge whether the total duration of this link negotiation is not less than the 3rd duration, if determine this link negotiation procedure failure; Otherwise, carry out the mode of operation of the default support ultra-long transmission distance of described employing and the action that opposite equip. carries out link negotiation;
And the mode of operation of the support ultra-long transmission distance that described employing is default and opposite equip. carry out after the link negotiation failure, return the action that described use LDS auto negotiation mode and link opposite equip. carry out link negotiation further comprises before:
Judge whether the total duration of this link negotiation is not less than the 3rd duration, if determine this link negotiation procedure failure; Otherwise, carry out the described described action of using LDS auto negotiation mode and link opposite equip. to carry out link negotiation of returning.
One kind support the ultra-long transmission distance apart from enhanced ethernet equipment, it is characterized in that this equipment comprises:
LDS auto-negotiation module when this LRE device power, uses LDS auto negotiation mode and link opposite equip. to carry out link negotiation, finds the failure of LDS auto-negotiation, then sends apart from the link negotiation module to ultra-long transmission to start indication;
Ultra-long transmission is apart from the link negotiation module, receive and start indication, adopt mode of operation and the opposite equip. of default support ultra-long transmission distance to carry out link negotiation, if the mode of operation of the support ultra-long transmission distance that this employing is default and opposite equip. carry out the link negotiation success, send the mode of operation of this support ultra-long transmission distance to transport module;
Transport module receives the mode of operation of supporting the ultra-long transmission distance, adopts this mode of operation to communicate by letter with opposite equip..
8. equipment as claimed in claim 7, it is characterized in that described LDS auto-negotiation module is further used for, and records the first duration, and when the LDS auto-negotiation of discovery in the first duration and between the opposite equip. is successful, send described enabled instruction to ultra-long transmission apart from the link negotiation module.
9. equipment as claimed in claim 8, it is characterized in that, described ultra-long transmission is further used for apart from the link negotiation module, record the second duration, and when find in the second duration and the ultra-long transmission between the opposite equip. when consulting success, send the startup indication to described LDS auto-negotiation module, wherein, the second duration is not equal to the first duration;
And described LDS auto-negotiation module is received described startup indication, reuses the LDS auto negotiation mode and the link opposite equip. carries out link negotiation.
10. equipment as claimed in claim 9, it is characterized in that, described equipment further comprises: module when link negotiation amounts to, be used for when receiving the beginning timing indication that LDS auto-negotiation module is sent, beginning timing, when clocking value arrives default the 3rd duration, send simultaneously timing arrival indication to LDS auto-negotiation module and ultra-long transmission apart from the link negotiation module, wherein, the 3rd duration is greater than the first duration, the second duration sum;
And described LDS auto-negotiation module is further used for, when beginning to adopt LDS auto negotiation mode and link opposite equip. to hold consultation for the first time, module sends beginning timing indication when amounting to link negotiation, and when finding that at every turn the LDS auto-negotiation is not successful in the first duration, judge whether to receive that the timing that module was sent when link negotiation amounted to arrives indication, if receive, determine this link negotiation procedure failure; Otherwise, send the startup indication to ultra-long transmission apart from the link negotiation module;
And described ultra-long transmission is further used for apart from the link negotiation module, when consulting success, judges whether to receive that the timing that module was sent when link negotiation amounted to arrives indication at each ultra-long transmission, if receive, then determines this link negotiation procedure failure; Otherwise, send the startup indication to LDS auto-negotiation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910258904 CN102118215B (en) | 2009-12-30 | 2009-12-30 | Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910258904 CN102118215B (en) | 2009-12-30 | 2009-12-30 | Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device |
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| CN102118215A CN102118215A (en) | 2011-07-06 |
| CN102118215B true CN102118215B (en) | 2013-03-27 |
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| CN 200910258904 Expired - Fee Related CN102118215B (en) | 2009-12-30 | 2009-12-30 | Method and equipment for supporting over-long transmission distance of distance-enhanced Ethernet device |
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| CN109495341B (en) * | 2018-11-12 | 2021-01-15 | 苏州裕太微电子有限公司 | Time-sharing sending line pair information of Ethernet and line pair detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1881979A (en) * | 2005-05-31 | 2006-12-20 | 杭州华为三康技术有限公司 | Ethernet physical layer low-speed transmission realizing method and its applied network apparatus |
| CN101137204A (en) * | 2006-08-30 | 2008-03-05 | 华为技术有限公司 | Mobile communication system and mobile communication method |
| CN101170418A (en) * | 2007-12-05 | 2008-04-30 | 杭州华三通信技术有限公司 | Realization method, system and interface device for Ethernet electric interface compatibility |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070192700A1 (en) * | 2005-11-29 | 2007-08-16 | International Business Machines Corporation | Support of remote software applications |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1881979A (en) * | 2005-05-31 | 2006-12-20 | 杭州华为三康技术有限公司 | Ethernet physical layer low-speed transmission realizing method and its applied network apparatus |
| CN101137204A (en) * | 2006-08-30 | 2008-03-05 | 华为技术有限公司 | Mobile communication system and mobile communication method |
| CN101170418A (en) * | 2007-12-05 | 2008-04-30 | 杭州华三通信技术有限公司 | Realization method, system and interface device for Ethernet electric interface compatibility |
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
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