CN102811160A - Method and device for returning service to initial route - Google Patents
Method and device for returning service to initial route Download PDFInfo
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- CN102811160A CN102811160A CN201110148944XA CN201110148944A CN102811160A CN 102811160 A CN102811160 A CN 102811160A CN 201110148944X A CN201110148944X A CN 201110148944XA CN 201110148944 A CN201110148944 A CN 201110148944A CN 102811160 A CN102811160 A CN 102811160A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
Abstract
The invention discloses a method and device for returning service to an initial route. The method comprises the following steps of: storing initial route connection information of service; when the current working route connection of the service has a fault, establishing a route restoration connection and switching the service to the route restoration connection; and when a preset switching condition is triggered, switching the service from the route restoration connection to the initial route connection according to the stored initial route connection information. After being rerouted, the non-return service can be automatically and accurately returned to the initial route so as to ensure network stability and expandability. Under the condition of service grading, the non-return service achieves the function which is similar to that of return service with higher level, and idle bandwidth resources of the current network can be furthest utilized.
Description
Technical field
The present invention relates to ASON (Automatically Switched Optical Network, ASON) networking technology area, relate in particular to the method and apparatus that a kind of business turns back to initial route.
Background technology
ASON accomplishes automatic exchange and is connected the optical transfer network of control with control plane, and mainly accomplish control connection and set up, business recovery, protection such as switches at function.
Characteristics of ASON network are exactly the function that business has recovery, after initial route connects fault, search new route again, set up new route and connect, and business are connected from initial route be switched to the function that new route connection transmits and receives.
Whether protection is arranged, whether allow to recover different with echo plex mode according to business, business can be divided into a plurality of different SLA (Service-Level Agreement, service-level agreement) grade, it has been generally acknowledged that the grade of service of protection is higher than unshielded business; Under the identical situation of protection type, provide the grade of service of restore funcitons to be higher than the business of not recovering; Under the protection situation identical, can provide the grade of service of recoverable function more higher than the grade of irrevocable formula business with recovering type.
Recoverable business is meant when initial route to be recovered again just often, must connect from new route and switch back initial route connection, and irrevocable formula business then need not connect from new route and switch back initial route connection in this case.Behind the heavy road of the professional generation of irrevocable formula, initial route is deleted.When a large amount of irrevocable formula business through after the heavy-route repeatedly, current network environment is far from each other with initial planning, is unfavorable for the maintenance to business like this, also is unfavorable for the dilatation of network.Professional for irrevocable formula, if turn back to initial route, need manually to turn back to initial route through the mode of optimizing route.
Though recoverable business can turn back to initial route, heavy Lu Houxu takes place take two parts of Internet resources, give an example; As shown in Figure 1, A, B, C, D, E are the network element in the ASON network, the B-C segment fault that recoverable business connects in initial route; Through dynamic rerouting recovering and when being switched to new route and connecting A-D-E-C; Still keep initial route and connect A-B-C, this moment, business still took available network resources A-B, had caused the waste of resource.
Summary of the invention
The technical problem that the present invention will solve is, the method and apparatus that provides a kind of business to turn back to initial route overcomes the defective that irrevocable formula business in the existing ASON network can not be returned initial route.
The technical scheme that the present invention adopts is that said business turns back to the method for initial route, comprising:
Preserve professional initial route link information;
Connect when breaking down in the work at present route of business, set up restoration route and connect and switch the business to restoration route and connect;
When the preset condition of switching is triggered, based on the initial route link information of preserving business is switched to initial route from the restoration route connection and connects.
Further, said method, when setting up the restoration route connection and switching the business in the restoration route connection, also comprise: the work route connection that deletion is broken down also discharges the resource on it; And,
Said method, when being switched to business in the initial route connection from the restoration route connection based on the initial route link information of preserving, also comprise: the connection of deletion restoration route also discharges the resource on it.
Further, the said preset condition of switching comprises: the user sends when returning initial route bind command, and judges the professional alarm status that does not connect in initial route and be masked as when producing;
Wherein, the alarm status sign that said business does not connect in initial route connects and switches the business to restoration route and connect last time setting up restoration route, is changed to generation; Switch the business to initial route in initial route link information and connect last time, be changed to disappearance based on preservation.
Further, when the said preset condition of switching was returned initial route bind command for the user sends, said business the connection from restoration route according to the initial route link information of preserving was switched to initial route and connects, and specifically comprises:
But A1, current work route link information with initial route link information the inequality and initial route time spent, set up initial route based on initial route and connect;
A2, when setting up initial route successful connection, business connected from restoration route be switched to the initialization route and connect.
Further, the said preset condition of switching is to judge business not when the alarm status of initial route connection is masked as generation, and said initial route link information based on preservation is switched to initial route with business from the restoration route connection and connects, and specifically comprises:
But B1, regularly judge the professional alarm status that does not connect and be not masked as and produce and the initial route time spent, set up initial route based on initial route and connect in initial route;
B2, when setting up initial route successful connection, business connected from restoration route be switched to the initialization route and connect.
Further, said method, also comprises: said alarm status sign is safeguarded not after the alarm status sign that initial route connects is changed to generation in said business.
Further, to the whether available judgement of initial route and set up process that initial route connects and be based on all that RSVP (Resorce reSerVation Protocol, RSVP) carries out.
The present invention also provides a kind of business to turn back to the device of initial route, comprising:
Information is preserved module, is used to preserve professional initial route link information;
The route protection module is used for when the work at present route connection of business is broken down, and sets up the restoration route connection and switch the business to restoration route to connect;
Route is returned module, is used for when the preset condition of switching is triggered, and based on the initial route link information of preserving business is connected from restoration route to be switched in the initial route connection.
Further; Said route protection module; Also be used for: when setting up the restoration route connection and switching the business in the restoration route connection, the alarm status that the purchase of property is engaged in not connecting in initial route is not masked as generation, deletes the work route connection of breaking down and also discharges the resource on it;
Said route is returned module; Also be used for: when being switched to business in the initial route connection from the restoration route connection according to the initial route link information of preserving; The alarm status that the purchase of property is engaged in not connecting in initial route is masked as disappearance, and the connection of deletion restoration route also discharges the resource on it.
Further, said device also comprises:
Alarm status sign maintenance module is used for business is not safeguarded at the alarm status sign that initial route connects.
Adopt technique scheme, the present invention has advantage at least:
Business according to the invention turns back to the method and apparatus of initial route, after the professional generation of irrevocable formula heavy-route, can return initial route fast and accurately automatically, guarantees stability of network and easy dilatancy.Under the situation of service classification, can make function like the higher recoverable service class of irrevocable formula business realizing and grade, utilize the idle bandwidth resources of current network to greatest extent.
Description of drawings
Heavy-route connected sketch map when Fig. 1 was initial routing failure;
Fig. 2 is the professional method flow diagram that turns back to initial route described in the first embodiment of the invention;
Fig. 3 is the particular flow sheet of steps A 3 in the first embodiment of the invention;
Fig. 4 is the professional method flow diagram that turns back to initial route described in the second embodiment of the invention;
Fig. 5 is the particular flow sheet of step B3 in the second embodiment of the invention;
Fig. 6 is the professional apparatus structure sketch map that turns back to initial route described in the third embodiment of the invention;
Fig. 7 is the professional apparatus structure sketch map that turns back to initial route described in the fourth embodiment of the invention.
Embodiment
Reach technological means and the effect that predetermined purpose is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the present invention be elaborated as after.
First embodiment of the invention, a kind of business turns back to the method for initial route, and is as shown in Figure 2, comprises following concrete steps:
Steps A 1, the work route when business is set up for the first time connect as initial route and connect, and preserve initial route link information.Initial route link information can be the outbound port information of next jumping of reflection for each network element.
Steps A 2 connects when breaking down in the work at present route of business, sets up restoration route through heavy-route and connects and switch the business to restoration route and connect, and the work route that deletion is broken down connects and also discharges the resource on it.
Steps A 3 when the user sends when returning initial route bind command, connects business based on the initial route link information of preserving and to be switched to initial route and to connect from current restoration route, delete current restoration route connection and discharge the resource on it.As shown in Figure 3, steps A 3 specifically comprises:
A31, with the initial route link information of current restoration route link information and preservation relatively, if identical, execution in step A35 then; If inequality, execution in step A32 then;
A32, whether available according to the initial route of RSVP verification, if, execution in step A33 then, otherwise execution in step A36;
A33 sets up initial route based on RSVP based on initial route and connects, if set up successfully, and execution in step A34 then, otherwise execution in step A36;
A34 is switched to initial route with business from current restoration route connection and connects, and deletes current restoration route connection and discharges the resource on it, execution in step A35.
A35 returns initial route successful connection to user's business of sending, and flow process finishes.
A36 returns initial route connection failure to user's business of sending, and flow process finishes.
Second embodiment of the invention; The difference of the method for present embodiment and first embodiment is; Be provided with the professional alarm status sign that does not connect in initial route; Judge that through regular the professional alarm status that does not connect in initial route is masked as generation and still disappears, can accomplish automatically at the ASON network and return initial route connection.A kind of business turns back to the method for initial route, and is as shown in Figure 4, comprises following concrete steps:
Step B1, the work route when business is set up for the first time connects as initial route and connects, and preserves initial route link information.
Step B2; When the work at present route connection of business is broken down; Setting up restoration route through heavy-route connects and switches the business to restoration route and connect; The alarm status that the purchase of property is engaged in not connecting in initial route is masked as generation, and deletes the work route connection of breaking down and discharge the resource on it.
Step B3; Professional not when the alarm status of initial route connection is masked as generation when judging; According to the initial route link information of preserving business being switched to initial route from current restoration route connection connects; The alarm status that the purchase of property is engaged in not connecting in initial route is masked as disappearance, and deletes current restoration route connection and discharge the resource on it.As shown in Figure 5, step B3 specifically comprises:
B30, regularly judge whether the professional alarm status sign that does not connect in initial route is disappearance, if disappear, execution in step B30 then, if produce, execution in step B31 then;
B31, whether available according to the initial route of RSVP verification, if, execution in step B32 then, otherwise execution in step B30;
B32 sets up initial route based on RSVP based on initial route and connects, if set up successfully, and execution in step B33 then, otherwise execution in step B30;
B33 is switched to initial route with business from current restoration route connection and connects, and the alarm status that the purchase of property is engaged in not connecting in initial route is not masked as disappearance, and deletes current restoration route connection and discharge the resource on it.
Optional, the said method of present embodiment, be engaged in not after the alarm status that initial route connects is masked as generation, also comprising in the step B2 purchase of property:
Step B4 does not safeguard at the alarm status sign that initial route connects business, specifically comprises:
When heavy-route took place, identical with initial route connection as if the restoration route connection of passing through heavy-route foundation, then purchase of property affair was not masked as disappearance at the alarm status of initially route connection;
When receiving the initial routing command of the business of modification, switch the business to amended initial route and connect, colocation is not masked as disappearance at the alarm status that initial route connects;
When receiving when optimizing the heavy-route order, switch the business to that the initial route after optimizing heavy-route connects, colocation is not masked as disappearance at the alarm status that initial route connects.
The third embodiment of the present invention, a kind of business turns back to the device of initial route, is arranged in each network element of ASON network, and is as shown in Figure 6, comprises following part:
1) information is preserved module, is used to preserve professional initial route link information, the work route link information when this initial route link information is set up for business for the first time.
2) route protection module is used for when the work at present route connection of business is broken down, and sets up the restoration route connection and switch the business to restoration route through heavy-route to connect, and the work route connection that deletion is broken down also discharges the resource on it.
3) route is returned module; Be used for sending when returning initial route bind command as the user; According to the initial route link information of preserving business is switched to initial route from current restoration route connection and connects, delete current restoration route connection and discharge the resource on it.Under opposite extreme situations,, then should the current restoration route connection of business just be meant that initial route connected if heavy-route never took place business.
This route is returned module, specifically comprises:
The service management submodule, whether with initial route link information different, if then call the routing inquiry submodule, otherwise return initial route successful connection to user's business of sending if being used for current restoration route link information;
The routing inquiry submodule is used for according to RSVP the availability of initial route being carried out verification, if available, then calls the connection management submodule, if unavailable, then returns initial route connection failure to user's business of sending;
The connection management submodule; Being used for setting up initial route according to RSVP based on initial route connects; If set up successfully, then business is switched to the initialization route from current restoration route connection and connects, return initial route successful connection to user's business of sending; If set up failure, then return initial route connection failure to user's business of sending.
The fourth embodiment of the present invention; The difference of the device of present embodiment and the 3rd embodiment is; Be provided with the professional alarm status sign that does not connect in initial route; Judge that through regular the professional alarm status that does not connect in initial route is masked as generation and still disappears, can accomplish automatically at the ASON network and return initial route connection.A kind of business turns back to the device of initial route, and is as shown in Figure 7, comprises following part:
1) information is preserved module, is used to preserve professional initial route link information, the work route link information when this initial route link information is set up for business for the first time.
2) route protection module; Be used for when the work at present route connection of business is broken down; Setting up restoration route through heavy-route connects and switches the business to restoration route and connect; The alarm status that the purchase of property is engaged in not connecting in initial route is masked as generation, and the work route connection that deletion is broken down also discharges the resource on it.
3) route is returned module; Be used for when judging professional not when the alarm status of initial route connection is masked as generation; According to the initial route link information of preserving business being switched to initial route from current restoration route connection connects; The alarm status that the purchase of property is engaged in not connecting in initial route is masked as disappearance, deletes current restoration route connection and discharges the resource on it.This route is returned module, specifically comprises:
The service management submodule is used for regularly judging whether the professional alarm status sign that does not connect in initial route is generation, if, then call the routing inquiry submodule, otherwise, the service management submodule then called;
The routing inquiry submodule is used for according to RSVP the availability of initial route being carried out verification, if available, then calls the connection management submodule, if unavailable, then calls the service management submodule;
The connection management submodule is used for setting up initial route according to RSVP based on initial route and connects, if set up successfully, then business is switched to the initialization route from current restoration route connection and connects, if set up failure, then calls the service management submodule.
Optionally, this device also comprises:
4) alarm status sign maintenance module is used for business is not safeguarded at the alarm status sign that initial route connects, and is concrete:
When heavy-route took place, identical with initial route connection as if the restoration route connection of passing through heavy-route foundation, then purchase of property affair was not masked as disappearance at the alarm status of initially route connection;
When receiving the initial routing command of the business of modification, switch the business to amended initial route and connect, colocation is not masked as disappearance at the alarm status that initial route connects;
When receiving when optimizing the heavy-route order, switch the business to that the initial route after optimizing heavy-route connects, colocation is not masked as disappearance at the alarm status that initial route connects.
Except the embodiment of top introduction; The present invention is for irrevocable formula 1+1SNCP (Subnetwork connection protection; SNCP) business also can be suitable for; Preserve the connection of work at present route and protect route to be connected as business initial route link information, business initial route link information comprises: the initial route link information of working and the initial route link information of protection, when heavy-route takes place after; Adopt technical scheme of the present invention; Work route that will be current according to the initial route link information of work connects the initial route of the work that turns back to and connects, and protection route that will be current connects when turning back to the initial route connection of protection, and it is successful to show that business turns back to initial route.
When business when being revised as irrevocable formula, can adopt technical scheme of the present invention from recoverable equally, be similar to professional first foundation this moment.
Business according to the invention turns back to the method and apparatus of initial route, after the professional generation of irrevocable formula heavy-route, can return initial route fast and accurately automatically, guarantees stability of network and easy dilatancy.Under the situation of service classification, can make function like the higher recoverable service class of irrevocable formula business realizing and grade, utilize the idle bandwidth resources of current network to greatest extent.And the present invention do not have directly to adopt the existing capability of recoverable business, but returns in the process of initial route in irrevocable formula business, and taking of fault resource improved, and saves limited Internet resources.
Through the explanation of embodiment, should be to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet appended diagram only provide the usefulness of reference and explanation, is not to be used for the present invention is limited.
Claims (10)
1. a business turns back to the method for initial route, it is characterized in that, comprising:
Preserve professional initial route link information;
Connect when breaking down in the work at present route of business, set up restoration route and connect and switch the business to restoration route and connect;
When the preset condition of switching is triggered, based on the initial route link information of preserving business is switched to initial route from the restoration route connection and connects.
2. turn back to the method for initial route according to the said business of claim 1, it is characterized in that,
Said method, when setting up the restoration route connection and switching the business in the restoration route connection, also comprise: the work route connection that deletion is broken down also discharges the resource on it; And,
Said method, when being switched to business in the initial route connection from the restoration route connection based on the initial route link information of preserving, also comprise: the connection of deletion restoration route also discharges the resource on it.
3. turn back to the method for initial route according to the said business of claim 1; It is characterized in that; The said preset condition of switching comprises: the user sends when returning initial route bind command, and judges the professional alarm status that does not connect in initial route and be masked as when producing;
Wherein, the alarm status sign that said business does not connect in initial route connects and switches the business to restoration route and connect last time setting up restoration route, is changed to generation; Switch the business to initial route in initial route link information and connect last time, be changed to disappearance based on preservation.
4. turn back to the method for initial route according to the said business of claim 3; It is characterized in that; When the said preset condition of switching is returned initial route bind command for the user sends; Said business the connection from restoration route according to the initial route link information of preserving is switched in the initial route connection, specifically comprises:
But A1, current work route link information with initial route link information the inequality and initial route time spent, set up initial route based on initial route and connect;
A2, when setting up initial route successful connection, business connected from restoration route be switched to the initialization route and connect.
5. turn back to the method for initial route according to the said business of claim 3; It is characterized in that; The said preset condition of switching is to judge the professional alarm status that does not connect in initial route to be masked as when producing; Said business the connection from restoration route according to the initial route link information of preserving is switched in the initial route connection, specifically comprises:
But B1, regularly judge the professional alarm status that does not connect and be not masked as and produce and the initial route time spent, set up initial route based on initial route and connect in initial route;
B2, when setting up initial route successful connection, business connected from restoration route be switched to the initialization route and connect.
6. turn back to the method for initial route according to claim 3 or 5 said business, it is characterized in that, said method, also comprises: said alarm status sign is safeguarded not after the alarm status sign that initial route connects is changed to generation in said business.
7. turn back to the method for initial route according to claim 4 or 5 said business, it is characterized in that, to the whether available judgement of initial route and set up process that initial route connects and be based on all that RSVP RSVP carries out.
8. a business turns back to the device of initial route, it is characterized in that, comprising:
Information is preserved module, is used to preserve professional initial route link information;
The route protection module is used for when the work at present route connection of business is broken down, and sets up the restoration route connection and switch the business to restoration route to connect;
Route is returned module, is used for when the preset condition of switching is triggered, and based on the initial route link information of preserving business is connected from restoration route to be switched in the initial route connection.
9. said according to Claim 8 business turns back to the device of initial route; It is characterized in that; Said route protection module; Also be used for: when setting up the restoration route connection and switching the business in the restoration route connection, the alarm status that the purchase of property is engaged in not connecting in initial route is not masked as generation, deletes the work route connection of breaking down and also discharges the resource on it;
Said route is returned module; Also be used for: when being switched to business in the initial route connection from the restoration route connection according to the initial route link information of preserving; The alarm status that the purchase of property is engaged in not connecting in initial route is masked as disappearance, and the connection of deletion restoration route also discharges the resource on it.
10. turn back to the device of initial route according to the said business of claim 9, it is characterized in that said device also comprises:
Alarm status sign maintenance module is used for business is not safeguarded at the alarm status sign that initial route connects.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110148944.XA CN102811160B (en) | 2011-06-03 | A kind of business returns to the method and apparatus initially routeing | |
| PCT/CN2012/075914 WO2012163242A1 (en) | 2011-06-03 | 2012-05-22 | Method and device for service to return to initial route |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110148944.XA CN102811160B (en) | 2011-06-03 | A kind of business returns to the method and apparatus initially routeing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102811160A true CN102811160A (en) | 2012-12-05 |
| CN102811160B CN102811160B (en) | 2016-12-14 |
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| US6757258B1 (en) * | 2000-05-04 | 2004-06-29 | Cisco Technology, Inc. | Method and apparatus for reducing OSPF flooding |
| CN1983960A (en) * | 2006-05-15 | 2007-06-20 | 华为技术有限公司 | Method for returning service route |
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| CN101047440A (en) * | 2006-05-10 | 2007-10-03 | 华为技术有限公司 | Method of service route return |
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| US6757258B1 (en) * | 2000-05-04 | 2004-06-29 | Cisco Technology, Inc. | Method and apparatus for reducing OSPF flooding |
| US20040004937A1 (en) * | 2002-07-05 | 2004-01-08 | Nortel Networks Limited | Method, device and software for establishing protection paths on demand and revertive protection switching in a communications network |
| CN101047440A (en) * | 2006-05-10 | 2007-10-03 | 华为技术有限公司 | Method of service route return |
| CN1983960A (en) * | 2006-05-15 | 2007-06-20 | 华为技术有限公司 | Method for returning service route |
| CN101035053A (en) * | 2007-04-26 | 2007-09-12 | 中兴通讯股份有限公司 | Processing method for node link switching of the distributed system and its device |
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| Publication number | Publication date |
|---|---|
| WO2012163242A1 (en) | 2012-12-06 |
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Effective date of registration: 20180702 Address after: California, USA Patentee after: Global innovation polymerization LLC Address before: 518057 Nanshan District high tech Industrial Park, Shenzhen, Guangdong, Ministry of justice, Zhongxing Road, South China road. Patentee before: ZTE Corp. |
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Granted publication date: 20161214 |