CN101159504A - Synchronous digital hierarchy based ethernet protecting method - Google Patents
Synchronous digital hierarchy based ethernet protecting method Download PDFInfo
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- CN101159504A CN101159504A CNA2007101637229A CN200710163722A CN101159504A CN 101159504 A CN101159504 A CN 101159504A CN A2007101637229 A CNA2007101637229 A CN A2007101637229A CN 200710163722 A CN200710163722 A CN 200710163722A CN 101159504 A CN101159504 A CN 101159504A
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Abstract
The invention discloses an SDH-based Ethernet protection method, which comprises: step S102, setting the protected port and protecting port of an exchanger as the same aggregation group and adding multiple data into the aggregation group, wherein a data plate connected with the protected port is an active plate and a data plate connected with the protecting port is a standby plate and the active plate is connected with the standby plate via a cross plate; step S104, setting the protection relationship between the active plate and the standby plate as a specified protection relationship by the network manager and configuring the time slot; step S106, switching between the plates by the cross plate based on the specified protection relationship when needing to switch and switching the time slots; and step S108, transferring the service on the active plate to the standby plate under the processing of the cross plate. The invention can reduce the workload and complexity of switching operation and simultaneously save the bandwidth resources the synchronous digital hierarchy network.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of Ethernet guard method based on SDH (Synchronous Digital Hierarchy) (SDH).
Background technology
At present, (Multi-Service Transport Platform MSTP) is accepted by numerous telecom operators multi-service transport platform.It becomes the visual plant that makes up metropolitan area network with cheap cost, high reliability and level and smooth upgrading ability.In the application more and more widely of MSTP Ethernet data plate, operator requires also improving constantly to inserting safety of data.
Protect for business, occurred double-attaching technology at present the critical port of access switch.This technology is to use standby port that main port is protected, and when the passage of main port connection breaks down, enables standby port, thereby guarantees the unimpeded of key business.Double-attaching technology is a kind of technology of security fault-tolerance, can prevent a passage and cause business to be interrupted fully because irresistible problem produces fault.
But in reality, protected object is the product of each company often, and this just requires the generalization of passage detection technique, to adapt to multiple product; In addition, existing double-attaching technology need be protection passage bandwidth reserved when calculating, and this will take valuable access-in resource.
Yet at present at the defencive function of realizing Ethernet, the bandwidth resources that propose effectively to save SDH as yet have the solution of good versatility simultaneously.
Summary of the invention
Consider the problems referred to above and make the present invention; for this reason; main purpose of the present invention is to provide a kind of Ethernet protection scheme based on SDH (Synchronous Digital Hierarchy); under the situation of the bandwidth of not using extra SDH network and complex configurations; realize fast ethernet channel switch (Ethernet Protection Switch, EPS).
According to embodiments of the invention, provide a kind of Ethernet guard method based on SDH (Synchronous Digital Hierarchy).
This method comprises: step S102, the protected port of switch and protection port are set to same aggregation group, a plurality of databases are added aggregation group, wherein, the database that is connected with protected port is a main board, the database that is connected with the protection port is a standby plate, and main board links to each other with standby plate by cross board; Step S104 is set to specify the protection relation by the relation of the protection between webmaster main board and the standby plate, and the configuration time slot; Step S106, when needs switched, cross board carried out switching between plate according to specifying protection to concern, and switches time slot; And step S108, cross board is handled, and the business on the main board is crossed on the standby plate.
Wherein, in step S104, standby plate keeps identical configuration by webmaster with main board.
At this moment, in step S104, further comprise: main board and standby plate are started link aggregation protocols, check whether main board is normal with being connected of switch with standby plate; Break down and standby plate switched with related the connection under the normal situation of switch in related being connected of main board and switch.
Wherein, in step S106, further comprise: excite between the plate of cross board and switch, main board notice cross board switches time slot.
In addition, in step S104,, switch breaking down owing to main board or other reason need switch the time.At this moment, in step S106, further comprise: cross board is initiatively switched between activation plate, and switches time slot after the notice that receives from main board.
In addition, in step S108, cross board is revised the space division cross matrix, and the business on the main board is switched on the standby plate.
In addition, in the method, it is 1: 1 cross protection relation that the appointment protection between main board and the standby plate is closed.And switching between the plate that cross board is carried out is between plate to switch at 1: 1.
In addition, after step S108, may further include: professional via standby plate and cross board arrival tabula rasa, and enter synchronous digital system network.
By technique scheme of the present invention, can reduce the workload and the complexity of handover operation, and the bandwidth resources of having saved synchronous digital system network.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart based on the Ethernet guard method of SDH according to the embodiment of the invention;
Fig. 2 be can realize according to the embodiment of the invention based on the connection block diagram between database, switch, cross board and the tabula rasa of the Ethernet guard method of SDH; And
Fig. 3 is the detailed process flow chart based on the Ethernet guard method of SDH according to the embodiment of the invention.
Embodiment
In the present embodiment, provide a kind of Ethernet guard method based on SDH (Synchronous Digital Hierarchy) (SDH).This method is utilized the link aggregation protocols (LACP) of straddle to carry out channel failure and is detected; cross board is revised the space division cross matrix; originally the business that was crossed on the main board is crossed on the standby plate, carries out main standby plate simultaneously and switch, thereby the protection that realizes passage is switched.
As shown in Figure 1, the Ethernet guard method based on SDH according to the embodiment of the invention comprises: step S102, the protected port of switch and protection port are set to same aggregation group (LAG), a plurality of databases are added aggregation group, wherein, the database that is connected with protected port is a main board, and the database that is connected with the protection port is a standby plate, and main board links to each other with standby plate by cross board; Step S104 is set to specify the protection relation by the relation of the protection between webmaster main board and the standby plate, and the configuration time slot; Step S106, when needs switched, cross board carried out switching between plate according to specifying protection to concern, and switches time slot; And step S108, cross board is handled, and the business on the main board is crossed on the standby plate.
Wherein, in step S104, standby plate keeps identical configuration by webmaster with main board.
At this moment, in step S104, further comprise: main board and standby plate are started LACP, check whether main board is normal with being connected of switch with standby plate, that this moment, standby plate moved is straddle LACP; Break down and standby plate switched with related the connection under the normal situation of switch in related being connected of main board and switch.
Wherein, in step S106, further comprise: excite between the plate of cross board and switch, main board notice cross board switches time slot.
In addition, in step S104,, switch breaking down owing to main board or other reason need switch the time.At this moment, in step S106, further comprise: cross board is initiatively switched between activation plate, and switches time slot after the notice that receives from main board.
In addition, in step S108, cross board is revised the space division cross matrix, and the business on the main board is switched on the standby plate.
In addition, in the method, it is 1: 1 cross protection relation that the appointment protection between main board and the standby plate is closed.And switching between the plate that cross board is carried out is between plate to switch at 1: 1.
In addition, after step S108, may further include: professional via standby plate and cross board arrival tabula rasa, and enter synchronous digital system network.
Present invention is described below in conjunction with Fig. 2 and Fig. 3.
Fig. 2 shows the block diagram of realization according to the connected mode of database, cross board, tabula rasa and the switch of the method for the embodiment of the invention; Fig. 3 shows the detailed process flow process based on the Ethernet guard method of SDH according to the embodiment of the invention.
Switch is a switch to be protected among Fig. 2, and network element is the SDH network element, and switch is a master channel through database A, and switch is an alternate channel through database B's.
As the step among Fig. 3 (1), port one and port 2 that the exchanger user mouth is set are an aggregation group (LAG), the port 3 of database A port 3 and B adds respectively in this aggregation group, moves dynamic LACP agreement (protected data plate B moves dynamic straddle LACP agreement);
Step (2) is configured to 1: 1 protection relation with database B and database A, and database A is main with veneer (that is, above-mentioned main board), and database B is standby board (that is, above-mentioned standby plate); To main board, standby plate and cross board configuration time slot and protection relation, need dispose the time slot of all its protection veneers by webmaster for standby plate; Standbyly obtain the business configuration identical by webmaster with main board with plate;
Step (3) guarantees the method unanimity that user port connects on two databases;
As shown in Figure 2, the port 3 of A plate connects the port one of switch, and the same port 3 of B plate connects the protection port 2 of switch so.
Step (4) judges that the main port number that relates to database A is abnormal or judge main whether normal with database A;
Under the normal condition, execution in step (5), main foundation with switch by the LACP agreement with database A got in touch, and to notify this passage of cross board be normally, and the preliminary data plate does not send the LACP message.Switch is according to the LACP agreement, enable port 1, and disabled ports 2 professionally flows to database A by port one, enters cross board again, enters the SDH network by tabula rasa at last;
When the line of switch and database breaks down, by the LACP protocol detection to the information that opens circuit, this channel failure of database A notice cross board, and excite between plate switch at 1: 1, cross board detection preliminary data plate B is working properly and not under the state of protection, execution in step (6) begins to start protection and switches afterwards, cross board is the veneer by its required protection of HW line notice standby plate number at first, and standby plate follows that number to dispose the time slot of this plate according to this veneer identical with main board;
Step (7), cross board are revised the space division cross matrix, and the business that was crossed to originally on the main board is crossed on the standby plate, and cross board is sent and switched control signal to the plate of switching that is inserted in the main board back, switches plate and begins to switch;
Step (8), after the standby plate database operate as normal, access switch also switches to port 2 with business from port one according to the LACP agreement, and like this, business flows to database B by port 2, enters cross board again, enters the SDH network by tabula rasa at last.
In addition, need the situation of switching below also existing, when database A race flew: the port 3 of database A no longer outwards sent the LACP message, the process protocol testing is after the time, switch switches to port 2 with business from port one according to the LACP agreement, database B checks the heartbeat of database A, and it is undesired to find, and excites between plate switch at 1: 1; Business flows to database B by port 2, enters cross board again, enters the SDH network by tabula rasa at last;
When database A pulled out plate, database B checked the heartbeat of database A, and it is undesired to find, excites between plate switch at 1: 1, and switch switches to port 2 with business from port one according to the LACP agreement at port; Business flows to database B by port 2, enters cross board again, enters the SDH network by tabula rasa at last;
In the time of the manual switching of webmaster, port 3 LINK_DOWN of database A excite between plate switch at 1: 1, and switch is after the LACP of port 2 connects, and business switches to port 2 from port one; Business flows to database B by port 2, enters cross board again, enters the SDH network by tabula rasa at last.
In sum,, use dual-homedly when access switch is protected at the optical transmission database, need not carry out complicated manual configuration, reduced the workload and the complexity of operation the database of participation protective by means of technical scheme of the present invention; Simultaneously, owing to only taken cross matrix, access capacity is not restricted, so can not take the extra bandwidth of SDH network.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the Ethernet guard method based on SDH (Synchronous Digital Hierarchy) is characterized in that, comprising:
Step S102, the protected port of switch and protection port are set to same aggregation group, a plurality of databases are added described aggregation group, wherein, the database that is connected with described protected port is a main board, the database that is connected with described protection port is a standby plate, and described main board links to each other with described standby plate by cross board;
Step S104 is set to specify the protection relation by the relation of the protection between described main board of webmaster and the described standby plate, and the configuration time slot;
Step S106, when needs switched, described cross board carried out switching between plate according to described appointment protection relation, and switches described time slot; And
Step S108, described cross board is handled, and the business on the described main board is crossed on the described standby plate.
2. Ethernet guard method according to claim 1 is characterized in that, in described step S104, described standby plate keeps identical configuration by described webmaster with described main board.
3. Ethernet guard method according to claim 1 and 2 is characterized in that, in described step S104, further comprises:
Described main board and described standby plate are started link aggregation protocols, check whether described main board is normal with being connected of described switch with described standby plate;
Break down with related being connected of described switch and described standby plate switched with related the connection under the normal situation of described switch at described main board.
4. Ethernet guard method according to claim 3 is characterized in that, in described step S106, further comprises:
Excite between the plate of described cross board and switch, described main board notifies described cross board to switch described time slot.
5. Ethernet guard method according to claim 1 and 2 is characterized in that, in described step S104, breaking down owing to described main board or other reason need switch the time, switches.
6. Ethernet guard method according to claim 5 is characterized in that, in described step S106, further comprises:
Described cross board initiatively excites between described plate and switches, and switches described time slot after the notice that receives from described main board.
7. Ethernet guard method according to claim 1 is characterized in that, in described step S108, described cross board is revised the space division cross matrix, and the business on the described main board is switched on the described standby plate.
8. according to each described Ethernet guard method in the claim 1,2 and 7, it is characterized in that it is 1: 1 cross protection relation that the appointment protection between described main board and the described standby plate is closed.
9. Ethernet guard method according to claim 8 is characterized in that, switching between the described plate that described cross board is carried out is between plate to switch at 1: 1.
10. according to each described Ethernet guard method in the claim 1,2 and 7, it is characterized in that, after described step S108, further comprise:
Described business arrives tabula rasa via described standby plate and described cross board, and enters synchronous digital system network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101637229A CN101159504B (en) | 2007-10-23 | 2007-10-23 | Synchronous digital hierarchy based ethernet protecting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101637229A CN101159504B (en) | 2007-10-23 | 2007-10-23 | Synchronous digital hierarchy based ethernet protecting method |
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| CN101159504A true CN101159504A (en) | 2008-04-09 |
| CN101159504B CN101159504B (en) | 2012-05-23 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101895338A (en) * | 2010-07-19 | 2010-11-24 | 中兴通讯股份有限公司 | Method, device and system for recovering service in multiplex section switching |
| CN102045600A (en) * | 2009-10-22 | 2011-05-04 | 中兴通讯股份有限公司 | Link protection method and device of Ethernet accessed to SDH (Synchronous Digital Hierarchy) optical network |
| CN102055578A (en) * | 2009-10-29 | 2011-05-11 | ***通信集团广东有限公司 | Method, device, system and integrated adaptor for aid repair of faulted network element |
| CN102301649A (en) * | 2011-07-14 | 2011-12-28 | 华为技术有限公司 | Protection switching device and method |
| CN101674240B (en) * | 2009-09-24 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for realizing single-node dual home for distributed system |
| CN102739430A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for realizing Ethernet protection switching |
| CN103248508A (en) * | 2012-02-09 | 2013-08-14 | 中兴通讯股份有限公司 | Port protecting method, device and system |
| WO2014063571A1 (en) * | 2012-10-24 | 2014-05-01 | 中兴通讯股份有限公司 | Distributed link aggregation group service handover method and device |
| EP2429106A4 (en) * | 2009-06-09 | 2015-03-11 | Zte Corp | Method and apparatus for fast passing through services for synchronous digital hierarchy device |
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| CN101047547B (en) * | 2006-03-30 | 2012-04-18 | 华为技术有限公司 | Method and device for implementing port protection |
| CN1997034B (en) * | 2006-12-21 | 2011-05-04 | 华为技术有限公司 | A method and system for protection of the link convergence group |
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- 2007-10-23 CN CN2007101637229A patent/CN101159504B/en not_active Expired - Fee Related
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| EP2429106A4 (en) * | 2009-06-09 | 2015-03-11 | Zte Corp | Method and apparatus for fast passing through services for synchronous digital hierarchy device |
| CN101674240B (en) * | 2009-09-24 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for realizing single-node dual home for distributed system |
| CN102045600A (en) * | 2009-10-22 | 2011-05-04 | 中兴通讯股份有限公司 | Link protection method and device of Ethernet accessed to SDH (Synchronous Digital Hierarchy) optical network |
| CN102055578A (en) * | 2009-10-29 | 2011-05-11 | ***通信集团广东有限公司 | Method, device, system and integrated adaptor for aid repair of faulted network element |
| CN101895338A (en) * | 2010-07-19 | 2010-11-24 | 中兴通讯股份有限公司 | Method, device and system for recovering service in multiplex section switching |
| CN102739430B (en) * | 2011-04-15 | 2017-04-12 | 中兴通讯股份有限公司 | Method and system for realizing Ethernet protection switching |
| CN102739430A (en) * | 2011-04-15 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for realizing Ethernet protection switching |
| WO2012139452A1 (en) * | 2011-04-15 | 2012-10-18 | 中兴通讯股份有限公司 | Ethernet protection switching implementation method and system |
| CN102301649A (en) * | 2011-07-14 | 2011-12-28 | 华为技术有限公司 | Protection switching device and method |
| WO2012106891A1 (en) * | 2011-07-14 | 2012-08-16 | 华为技术有限公司 | Protection switching apparatus and method |
| CN103248508A (en) * | 2012-02-09 | 2013-08-14 | 中兴通讯股份有限公司 | Port protecting method, device and system |
| WO2014063571A1 (en) * | 2012-10-24 | 2014-05-01 | 中兴通讯股份有限公司 | Distributed link aggregation group service handover method and device |
| US9716651B2 (en) | 2012-10-24 | 2017-07-25 | Zte Corporation | Distributed link aggregation group service handover method and device |
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