CN102480653A - Method for activating service after restarting automatic switched optical network (ASON) node and system thereof - Google Patents
Method for activating service after restarting automatic switched optical network (ASON) node and system thereof Download PDFInfo
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- CN102480653A CN102480653A CN2010105661515A CN201010566151A CN102480653A CN 102480653 A CN102480653 A CN 102480653A CN 2010105661515 A CN2010105661515 A CN 2010105661515A CN 201010566151 A CN201010566151 A CN 201010566151A CN 102480653 A CN102480653 A CN 102480653A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
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Abstract
The invention discloses a method for activating a service after restarting an automatic switched optical network (ASON) node and a system thereof. The method is characterized by: when the service of a link can not be directly recovered after a head node of the link in the ASON is restarted, establishing new connection so as to recover the service of the link according to service control information recorded in the head node. In the invention, after the head node is restarted, according to the control information restoration service stored by the head node and the service connection, the service which is in a transient state or an abnormal state before the head node is restarted can be recovered after the head node is restarted. Service open can be guaranteed and system performance can be increased.
Description
Technical field
The present invention relates to ASON (Automatic switched optical Network is called for short ASON), relate in particular to the method and system that a kind of ASON node is restarted the back activation of service.
Background technology
The ASON network is meant the optical-fiber network of new generation of under routing and signaling control, accomplishing automatic function of exchange.The ASON network mainly by following three independently the plane form: transport plane, control plane and management plane.ASON supports three kinds of connections, promptly forever connects PC (Permanent Connection is called for short PC), exchange connection (Switched Connection is called for short SC) and soft permanent connection the (Soft Permanent Connection is called for short SPC).Permanent connection is also referred to as to customize and connects, accomplishes by network management system or by manual work, and be the connection that signaling drives and exchange connection, the terminal use can connect between any two connection end points as required.It all is the connection of being initiated by management plane that SPC is connected with PC, and difference is that SPC uses signaling to connect, and PC then is through human configuration.
ASON supports to connect end to end and sets up, monitors, protects and recover, and is suitable for various network topologies, is suitable for the support of mesh network, can strengthen the traffic engineering ability of network.General multiple protocols label exchange (GMPLS) technology that is based on the key-course of ASON realizes that need the dynamic interaction signaling information between the controlled entity of each network element, the routing section in the chain of command also will be at the exchanged between entities routing iinformation in addition.Through open type shortest path priority protocol (Open Shortest-Path First; Abbreviation OSPF) HELLO message is monitored connectivity of link and neighbours' variation; Behind node failure, 3 to 4 HELLO week after dates, neighbor node can know that neighbor node is dead.Can restart behind the node failure.Cause that the possible factor that node is restarted comprises: software upgrading, software vulnerability, hardware fault or power down etc.Node business before restarting possibly be in following three kinds of states: one, stable state.The rich business of this state set up successfully and former connection open-minded; Two, transient state.Refer to that newly-built connection is not open-minded, be in newly-built in, in the recovery or in revising.Three, abnormality.Refer to that some or all connections is not open-minded, reporting service is unusual.Can be to have only first node to restart when node is restarted, perhaps single non-first node (being intermediate node or end-node) be restarted, and perhaps multinode is restarted.
First node is restarted and (can be restarted by independent first node; Also can be that first node and intermediate node are all restarted; Or first node and end-node are all restarted) after, if preserved complete business information in the business control information of first node, then directly carry out business recovery based on business control information; But business was in stable state but lost part information in the business control information before first node was restarted, and perhaps business is in transient state and (promptly is in to connect and sets up in the process; Perhaps professional newly-built or recover); Perhaps, when business is in abnormality, after first node is restarted; The situation of the business information generally imperfect (being that the partial service control information is lost) that the business control information of first node is preserved can't directly be carried out business recovery.
Summary of the invention
The technical problem that the present invention will solve provides the method and system that a kind of ASON node is restarted the back activation of service, carries the traffic restoration capability after first node is restarted.
In order to solve the problems of the technologies described above; The invention provides a kind of ASON node and restart the method for back activation of service; Comprise: after the first node of link is restarted in the ASON; In the time of can't directly recovering said link professional, set up new connection to recover the business of said link according to the business control information that writes down in the first node.
Further, said method can also have following characteristics:
After said first node was restarted, when including only professional work link information and said service needed protection connection in the said business control information, the newly-built protection on said link of said first node connected.
Further, said method can also have following characteristics:
After said first node was restarted, when including only professional protection link information in the said business control information, the newly-built work on said link of said first node connected.
Further, said method can also have following characteristics:
After said first node was restarted, when not comprising professional work link information in the said business control information and protecting the protection of link information and said service needed to be connected, the newly-built work on said link of said first node connected with protection and is connected.
Further, said method can also have following characteristics:
When having remaining the connection between the non-first node on the said link, said first node is judged said remaining connect and newly-built being connected belongs to same business and connection type when identical on said link during newly-built connections, deletes said remnants connection.
Further, said method can also have following characteristics:
Connection type comprises: work connection type, protection connection type, work recover connection type, and protection recovers connection type.
Further, said method can also have following characteristics:
Said first node judge said remaining connect belong to same business with newly-built being connected but connection type not simultaneously, with said remaining connect and said newly-built being connected to carry out label shared.
In order to solve the problems of the technologies described above, the present invention also provides a kind of ASON node to restart the system of back activation of service; The ASON node when being used for can't directly recovering as the first node of ASON link and after restarting said link professional, is set up new connection to recover the business of said link according to the business control information of record.
Further, said system can also have following characteristics:
Said ASON node is used for when work link information of restarting the back said business control information business of including only and said service needed protection connection, and newly-built protection connects on said link.
Further, said system can also have following characteristics:
Said ASON node is used for when restarting the protection link information of the back said business control information business of including only, and newly-built work connects on said link.
The present invention is after first node is restarted; The control information reconditioning work of preserving according to first node with and being connected of business; Make after first node is restarted, all can be restored under the professional situation that before first node is restarted, is in transient state or abnormality, guarantee service fulfillment, improve systematic function.
Description of drawings
Fig. 1 is the method sketch map that the ASON node is restarted the back activation of service among the embodiment;
Fig. 2 is the link sketch map that embodiment one is suitable for;
Fig. 3 is the process chart after first node is restarted among the embodiment one;
Fig. 4 is the link sketch map that is suitable among the embodiment two.
Embodiment
The connection that the present invention relates to is applicable to that SPC connects.
Restart the situation of the business information imperfect (being that the partial service control information is lost) that the back business control information preserves to first node, the present invention proposes the system that a kind of ASON node is restarted the back activation of service.
When the ASON node in the native system is used for can't directly recovering as the first node of ASON link and after restarting said link professional, set up new connection to recover the business of said link according to the business control information of record.
Said ASON node is used for when work link information of restarting the back said business control information business of including only and said service needed protection connection, and newly-built protection connects on said link.
Said ASON node is used for when restarting the protection link information of the back said business control information business of including only, and newly-built work connects on said link.
Said ASON node is used for restarting the said business control information in back when not comprising professional work link information and being connected with protection link information and the protection of said service needed, and newly-built work connection is connected with protecting on said link.
Restart the situation of the business information imperfect (being that the partial service control information is lost) of back business control information preservation to first node; As shown in Figure 1; The ASON node is restarted the method for back activation of service among the present invention; Comprise: after the first node of link is restarted in the ASON, in the time of can't directly recovering said link professional, set up new connection to recover the business of said link according to the business control information that writes down in the first node.
After said first node was restarted, when including only professional work link information and said service needed protection connection in the said business control information, the newly-built protection on said link of said first node connected.
After said first node was restarted, when including only professional protection link information in the said business control information, the newly-built work on said link of said first node connected.
After said first node was restarted, when not comprising professional work link information in the said business control information and protecting the protection of link information and said service needed to be connected, the newly-built work on said link of said first node connected with protection and is connected.
When having remaining the connection between the non-first node on the said link, said first node is judged said remaining connect and newly-built being connected belongs to same business and connection type when identical on said link during newly-built connections, deletes said remnants connection.
Connection type comprises: work connection type, protection connection type, work recover connection type, and protection recovers connection type.
For example, the remnants that exist between the non-first node on the said link are connected to work and connect, and the newly-built work on said link of first node connects; Judge that said remaining the connection is connected with newly-built work when belonging to same business; Judge that remnants are connected to redundant the connection, newly-built work is connected to normal connection, and then deletion is remaining connects; Promptly issue the remaining order that connects of deletion, continue to set up work and connect.
For example, the remnants that exist between the non-first node on the said link are connected to protection and connect, and the newly-built protection on said link of first node connects; Judge that said remaining the connection is connected with newly-built protection when belonging to same business; Judge that remnants are connected to redundant the connection, newly-built protection is connected to normal connection, and then deletion is remaining connects; Promptly issue the remaining order that connects of deletion, continue to set up protection and connect.
For example, the remnants that exist between the non-first node on the said link work that is connected to recovers to connect, and the newly-built work on said link of first node recovers to connect; Judge that said remaining the connection with newly-built work recovery is connected when belonging to same business; Judge that remnants are connected to redundant the connection, newly-built work recovers to be connected to normal connection, and then deletion is remaining connects; Promptly issue the remaining order that connects of deletion, continue to set up work and recover to connect.
For example, the remnants that exist between the non-first node on the said link are connected to protection and recover to connect, and the newly-built protection on said link of first node recovers to connect; Judge that said remaining the connection with newly-built protection recovery is connected when belonging to same business; Judge that remnants are connected to redundant the connection, newly-built protection recovers to be connected to normal connection, and then deletion is remaining connects; Promptly issue the remaining order that connects of deletion, continue to set up protection and recover to connect.
Said first node judge said remaining connect belong to same business with newly-built being connected but connection type not simultaneously; Said remaining connection is carried out label with said newly-built being connected to be shared; In subsequent process; When further judging remnants and being connected to redundant the connection, delete again and get final product this redundant connection, can not impact business.
Embodiment one
As shown in Figure 2, the node of the link process of SPC business comprises node A, Node B, node C, node D successively in the ASON network; After first node A is restarted; Through 3 or 4 Hello week after dates (cycle of a Hello was generally 5 seconds, and the cycle can be provided with), downstream node B thinks that upstream node A is dead; So C sends the operation that Force Deletion connects to downstream node, first node A as shown in Figure 3 handles after restarting as follows:
Step 301, recovery is in the business of normal condition; Search the incomplete business of business information in the business control information.
Step 302 to above-mentioned business, judges whether there is the work link information in the business control information; When not having the work link information, set up new work and connect; When having the work link information, carry out next step.
Step 303 is judged the connection that whether needs protection of above-mentioned business; Above-mentioned business does not need protection when connecting, and flow process finishes; When above-mentioned service needed protection connects, carry out next step.
Step 304 is judged the protection link information that whether has above-mentioned business in the business control information, if there is the protection link information of above-mentioned business, refreshes after work connects, and connects according to protection link information recovery and protection; If there is not the protection link information of above-mentioned business, refresh after work connects, set up new protection and connect.
Embodiment two
Shown in Figure 4, the node of the link process of SPC business comprises node A, Node B, node C, node D, node E successively in the ASON network; Business is set up in the process first node A and is restarted back intermediate node C and restart; First node A is restarted back about 3 or 4 Hello week after date, and downstream node B thinks that upstream node A is dead, and C sends the operation that Force Deletion (Pathtear) connects to downstream node; But downstream node C power down or the disconnection of B; Do not accomplish the deletion that connects, cause to have remaining the connection between the D-E, handling process afterwards comprises the following aspects:
Step 401: after first node is restarted, recover to be in the business of normal condition; Search the incomplete business of business information in the business control information.
Step 402: the newly-built work on former link of first node connects; The remaining connection also for work connects between the node D-E, intermediate node D judges and remainingly between the decision node D-E connects with first node newly-built work and be connected and belong to same business, and is the work connection; Remnants are connected to redundant the connection between the decision node D-E; Issue between the Force Deletion node D-E the redundant order that connects, set up said work on continuing in follow-up chain to connect, flow process finishes.
In the above-mentioned steps 402, newly-built work connects if first node is restarted the back, and remnants' is that work recovers to connect between the node D-E; Node D can't judge whether this remaining connection is redundant the connection; Then said remaining the connection carries out label with said newly-built being connected and shares, in subsequent process, when further judging remnants and being connected to redundant connection; Delete this redundant connection again and get final product, can not impact business.
The present invention is after first node is restarted; The control information reconditioning work of preserving according to first node with and being connected of business; Make after first node is restarted, all can be restored under the professional situation that before first node is restarted, is in transient state or abnormality, guarantee service fulfillment, improve systematic function.
Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (10)
1. the method for activation of service is characterized in that after an ASON node was restarted,
After the first node of link is restarted in the ASON, in the time of can't directly recovering said link professional, set up new connection to recover the business of said link based on the business control information that writes down in the first node.
2. the method for claim 1 is characterized in that,
After said first node was restarted, when including only professional work link information and said service needed protection connection in the said business control information, the newly-built protection on said link of said first node connected.
3. the method for claim 1 is characterized in that,
After said first node was restarted, when including only professional protection link information in the said business control information, the newly-built work on said link of said first node connected.
4. the method for claim 1 is characterized in that,
After said first node was restarted, when not comprising professional work link information in the said business control information and protecting the protection of link information and said service needed to be connected, the newly-built work on said link of said first node connected with protection and is connected.
5. the method for claim 1 is characterized in that,
When having remaining the connection between the non-first node on the said link, said first node is judged said remaining connect and newly-built being connected belongs to same business and connection type when identical on said link during newly-built connections, deletes said remnants connection.
6. the method for claim 1 is characterized in that,
Connection type comprises: work connection type, protection connection type, work recover connection type, and protection recovers connection type.
7. method as claimed in claim 5 is characterized in that,
Said first node judge said remaining connect belong to same business with newly-built being connected but connection type not simultaneously, with said remaining connect and said newly-built being connected to carry out label shared.
8. the system of activation of service is characterized in that after an ASON node was restarted,
The ASON node when being used for can't directly recovering as the first node of ASON link and after restarting said link professional, is set up new connection to recover the business of said link according to the business control information of record.
9. system as claimed in claim 8 is characterized in that,
Said ASON node is used for when work link information of restarting the back said business control information business of including only and said service needed protection connection, and newly-built protection connects on said link.
10. system as claimed in claim 8 is characterized in that,
Said ASON node is used for when restarting the protection link information of the back said business control information business of including only, and newly-built work connects on said link.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105661515A CN102480653A (en) | 2010-11-30 | 2010-11-30 | Method for activating service after restarting automatic switched optical network (ASON) node and system thereof |
| PCT/CN2011/073956 WO2012071855A1 (en) | 2010-11-30 | 2011-05-11 | Method and system for activating service after restarting node of automatically switched optical network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105661515A CN102480653A (en) | 2010-11-30 | 2010-11-30 | Method for activating service after restarting automatic switched optical network (ASON) node and system thereof |
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| CN102480653A true CN102480653A (en) | 2012-05-30 |
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| CN2010105661515A Pending CN102480653A (en) | 2010-11-30 | 2010-11-30 | Method for activating service after restarting automatic switched optical network (ASON) node and system thereof |
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| WO (1) | WO2012071855A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105827350A (en) * | 2015-01-04 | 2016-08-03 | ***通信集团公司 | Information synchronization method and network equipment |
| CN108509249A (en) * | 2017-02-23 | 2018-09-07 | 华为技术有限公司 | A kind of virtual system method for restarting and equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108650021B (en) * | 2018-05-14 | 2020-05-05 | 烽火通信科技股份有限公司 | Automatic dynamic rerouting testing method and system based on ASON |
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Also Published As
| Publication number | Publication date |
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| WO2012071855A1 (en) | 2012-06-07 |
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Application publication date: 20120530 |