CN101166113B - Message processing method for link maintenance in O-UNI system - Google Patents
Message processing method for link maintenance in O-UNI system Download PDFInfo
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- CN101166113B CN101166113B CN2006101409800A CN200610140980A CN101166113B CN 101166113 B CN101166113 B CN 101166113B CN 2006101409800 A CN2006101409800 A CN 2006101409800A CN 200610140980 A CN200610140980 A CN 200610140980A CN 101166113 B CN101166113 B CN 101166113B
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Abstract
This invention discloses a method for processing messages of maintaining links of O-UNI system including: a node receives a refresh message containing the address of a source node, the address of an aim node and MESSAGE-ID and checks the MESSAGE-ID in it to get the address of the source node, the address of the aim node and MESSAGE-ID, in which, the source node address received is the aim address for transmitting simplified refresh message and the aim address is the source address for transmitting it, the kind of the message and ctype kind MESSAGE-ID for transmitting the simplified refresh message are filled in to transmit it.
Description
Technical field
The present invention relates to be used in the O-UNI system a kind of message treatment method of maintenance link state, relate in particular to the message treatment method that the O-UNI system link is safeguarded.
Background technology
ASON (Automatically Switched Optical Net-work) is an ASON, is meant the optical-fiber network of new generation of finishing automatic function of exchange under routing and signaling control, also can be regarded as a kind of standardized intelligent optical transfer network.In ASON, business can realize dynamic connection, and time interval resource also can carry out dynamic assignment, supports different technical schemes and different business demands simultaneously, possesses characteristics such as high reliability, enhanced scalability.Concerning operator, ASON has been arranged, it is more flexible that the allotment of Network will become, voice signal transmission, IP operation transmission, the transmission of ATM signal, data image signal transmission can be combined together, the transmission of voice signal, data-signal, picture signal can be provided on same delivery platform, realize the unification of transmission network.
In ASON, O-UNI is the interface that connects user terminal (comprising ip router, ATM switch, equipment such as SDH switch) and optical-fiber network layer equipment.Customer equipment passes through dynamically acquisition request of this interface, cancels, and revises the wide connection resource of light belt with certain characteristic.User terminal node (O-UNI-C) and network layer device node (O-UNI-N) be connected set up finish after, need safeguard the link of having set up, be in connection status all the time to guarantee whole link.
The current network management depends on supplier appointed equipment Element management system EMS.Assignment connects needs end to end by the equipment of different manufacturers and the EMS of multiple non-compatibility, makes business spended time in end-to-end assignment very long.The service of international for this reason OIF Optical Internetworking Forum (OIF), light territory is interconnected, and (Optical Domain Service Interconnect, ODSI) tissue, ITU-T and IETF just jointly are devoted to the Standardization Research of UNI signaling interface on the ASON.The ASON that ITU-T proposes has adopted the conceptual configuration that can be divided into a plurality of territories, is the structural model of interface between control plane assembly and these assemblies.The user is UNI with the interface between the ASON network, and the reference point in the ASON network between the different management domains is E-NNI, and the reference point that different routes are sought between territory, footpath or the different control element between the same management domain is I-NNI.Wherein on the optical-fiber network signaling interface between client and network side we be referred to as Optical UNI, its standardization effort is to be finished by OIF, OIF has defined Network and demand that O-UNI provides, and with the interconnected various customer equipments of a kind of structure of opening.ODSI is compatible mutually with the stacking network model to the definition of Optical UNI.The ODSI interface comprises following functional protocol: service discovering, address registration and signaling expansion etc. all are the problems that O-UNI will solve.The network configuration that ASON/OIF/ODSI proposes separately all belongs to dynamic overlay model category.The GMPLS of IETF expands resource management protocols LMP, RSVP RSVP and constraint routing tag distributorship agreement CR-LDP to support the various demands of O-UNI.
Utilize Optical UNI, operator just can provide advanced photosphere service via the network that adopts many producers, multiple technologies.And the client data business just can seamlessly be set up end-to-end connection across the whole network by optical-fiber network by Optical UNI.O-UNI supports that mainly 5 is big movable: connect based on the signaling aspect and set up, remove, the connection state information exchange is found and the flow exchange automatically.All defined the role of Client/Server for every kind of activity, in the real network structure, mainly acted on behalf of (UNI-N) and realize respectively by client network agency (UNI-C) and service provider's network side.O-UNI 1.0 signaling specifications that OIF proposes have defined that O-UNI Service Activation reference configuration, signaling transmission channel configuration, address space are divided equally and joined, neighbours find and IPCC maintenance, service discovery process, O-UNI abstracted information and attribute, expanded the CR-LDP and the contents such as RSVP, O-UNI strategy and security consideration that are used for the O-UNI signaling.
But, in the Link State maintenance process, have the problem big to network resource consumption, consumed Internet resources in large quantities.
Summary of the invention
Technical problem solved by the invention provides the message treatment method that a kind of O-UNI system link is safeguarded, uses to send the method for simplifying refresh message between node, has reduced the big problem of network resource consumption that refresh message brought of handling.
Technical scheme is as follows:
The message treatment method that the O-UNI system link is safeguarded comprises the steps:
(1) checks MESSAGE_ID object in the refresh message receive;
(2) simplify refresh message according to the MESSAGE_ID tissue, when described MESSAGE_ID to as if produced when Making Path, organize ACK message bag as simplifying refresh message, when described MESSAGE_ID object be not when Making Path produce, organize NACK message bag as simplifying refresh message, the MESSAGE_ID that is produced during described Making Path has different values with the MESSAGE_ID that is produced before that Makes Path;
(3) send the simplification refresh message, described simplification refresh message comprises NACK message bag or ACK message bag.
Further, step (1) is specially: node receives refresh message, checks the MESSAGE_ID in the refresh message; Comprise source node address, destination node address and MESSAGE_ID in the described refresh message.
Further, in the step (2), the source node address that node is received is that node sends the destination node address of simplifying refresh message; The destination node address that node is received is that node sends the source node address of simplifying refresh message.
Further, step (2) is specially:
From the refresh message that node receives, obtain source node address, destination node address and MESSAGE_ID, the source node address that node is received is that node sends the destination node address of simplifying refresh message, and the destination node address that node is received is that node sends the source node address of simplifying refresh message; Fill in and send type of message, the ctype type of simplifying refresh message, fill in and send the MESSAGE_ID that simplifies refresh message.
Further, in the step (2), when filling in ACK message bag, MESSAGE_ID is the MESSAGE_ID in the refresh message that receives; When filling in NACK message bag, MESSAGE_ID is the MESSAGE_ID of record.
Further, in the step (3), when the refresh timer of node triggers, send and simplify refresh message; Not triggering of refresh timer when node continues to wait for the reception refresh message.
Beneficial effect one: adopt the method for the invention, can well solve Link State maintenance issues in the O-UNI system.
Beneficial effect two: adopt to simplify the maintenance issues of the method handle link state that refreshes in the method for the invention, reduced handle that refresh message brought to network resource consumption, improve network resource usage efficient.
Description of drawings
Fig. 1 simplifies the refresh message processing procedure.
Embodiment
With reference to the accompanying drawings the preferred embodiments of the present invention are described in detail.
With reference to shown in Figure 1, concrete steps are as follows:
1, checks MESSAGE_ID object in the refresh message receive.
Whether the first step: decision node B receives the refresh message that node A sends.
When Node B receives refresh message, check the MESSAGE_ID object in the refresh message, if all MESSAGE_ID are the MESSAGE_ID that was produced when created in the path in the past in the refresh message, Node B is responded to node A and is sent ACK message so.Here setting MESSAGE_ID=1 is the MESSAGE_ID that Makes Path and produced.If MESSAGE_ID=1 in the refresh message, then Node B receive MESSAGE_ID to as if produced when Making Path, Node B responds to node A and sends ACK message, MESSAGE_ID object etc. 1 in the ACK message, the ACK type of message is 13 (standard A CK message), and the ctype type is 1.
If contain the MESSAGE_ID that is produced when create in the path before not being in refresh message, Node B is responded to node A and is sent NACK message so.Setting MESSAGE_ID=8 is not the MESSAGE_ID that Makes Path and produced.Receive the refresh message of node A when Node B, if MESSAGE_ID=8, then show this MESSAGE_ID object be not when Making Path produce, Node B is responded and is sent NACK message, MESSAGE_ID=8 in the NACK message, the type of message of NACK message is 13 (standard NACK message), and the ctype type is 2.
If Node B does not receive refresh message, turned to for the 3rd step.
2, simplify refresh message according to the MESSAGE_ID tissue.
Step 2: can access the source node address, destination node address and the MESSAGE_ID that simplify refresh message in this refresh message that Node B receives, tissue is simplified refresh message.
If MESSAGE_ID=1 in the refresh message, then show Node B receive MESSAGE_ID to as if produced when Making Path, Node B responds to node A and sends ACK message.Next, organize ACK message bag, the source node address that Node B is received is exactly the destination node address that the B node sends ACK message, the destination node address that Node B is received is exactly the source node address that the B node sends ACK message, filling in the type of message that sends ACK message is 13 (standard A CK message), the ctype type is 1, and the MESSAGE_ID that fills in transmission ACK message is the MESSAGE_ID in the refresh message that receives.
If Node B receives the refresh message of node A, when MESSAGE_ID=8 then show this MESSAGE_ID object be not when Making Path produce, Node B is responded and is sent NACK message.Judge which is arranged among the MESSAGE_ID that receives is not the MESSAGE_ID that is produced when creating link, and write down these MESSAGE_ID.Organize NACK message bag, the source node address that Node B is received is exactly the destination node address that the B node sends NACK message, the destination node address that Node B is received is exactly the source node address that the B node sends NACK message, filling in the type of message that sends NACK message is 13 (standard NACK message), the ctype type is 2, fills in the MESSAGE_ID of MESSAGE_ID for writing down that sends NACK message.
3, send the simplification refresh message.
Whether the refresh timer of step 3: decision node B starts, and whether timer touches calmly.
If above-mentioned condition satisfies, then Node B sends to node A and simplifies refresh message, carries out for the 4th step; Otherwise, turn to the first step, continue to wait for the reception refresh message.
Step 4: send and simplify refresh message.
The source address of the transmission message that dependence obtains, destination address and the MESSAGE_ID tissue that needs to send refresh message are simplified refresh message, filling in the type of message that sends message is 15 (standard SREFRESH message), and Node B sends to node A and simplifies refresh message then.
After sending the simplification refresh message, the timer reclocking turns to the first step.
Claims (6)
1. the message treatment method that the O-UNI system link is safeguarded comprises the steps:
(1) checks MESSAGE_ID object in the refresh message receive;
(2) simplify refresh message according to the MESSAGE_ID tissue, when described MESSAGE_ID to as if produced when Making Path, organize ACK message bag as simplifying refresh message, when described MESSAGE_ID object be not when Making Path produce, organize NACK message bag as simplifying refresh message, the MESSAGE_ID that is produced during described Making Path has different values with the MESSAGE_ID that is produced before that Makes Path;
(3) send the simplification refresh message, described simplification refresh message comprises NACK message bag or ACK message bag.
2. the message treatment method that O-UNI system link according to claim 1 is safeguarded is characterized in that step (1) is specially: node receives refresh message, checks the MESSAGE_ID in the refresh message; Comprise source node address, destination node address and MESSAGE_ID in the described refresh message.
3. the message treatment method that O-UNI system link according to claim 1 is safeguarded is characterized in that, in the step (2), the source node address that node is received is that node sends the destination node address of simplifying refresh message; The destination node address that node is received is that node sends the source node address of simplifying refresh message.
4. the message treatment method that O-UNI system link according to claim 1 is safeguarded is characterized in that step (2) is specially:
From the refresh message that node receives, obtain source node address, destination node address and MESSAGE_ID, the source node address that node is received is that node sends the destination node address of simplifying refresh message, and the destination node address that node is received is that node sends the source node address of simplifying refresh message; Fill in and send type of message, the ctype type of simplifying refresh message, fill in and send the MESSAGE_ID that simplifies refresh message.
5. the message treatment method that O-UNI system link according to claim 4 is safeguarded is characterized in that in the step (2), when filling in ACK message bag, MESSAGE_ID is the MESSAGE_ID in the refresh message that receives; When filling in NACK message bag, MESSAGE_ID is the MESSAGE_ID of record.
6. the message treatment method that O-UNI system link according to claim 1 is safeguarded is characterized in that, in the step (3), when the refresh timer of node triggers, sends and simplifies refresh message; Not triggering of refresh timer when node continues to wait for the reception refresh message.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101409800A CN101166113B (en) | 2006-10-19 | 2006-10-19 | Message processing method for link maintenance in O-UNI system |
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| CN2006101409800A CN101166113B (en) | 2006-10-19 | 2006-10-19 | Message processing method for link maintenance in O-UNI system |
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| CN101166113B true CN101166113B (en) | 2010-06-16 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003186891A (en) * | 2001-12-20 | 2003-07-04 | Toshiba Corp | Link collection generating device and link collection generating method |
| CN1653420A (en) * | 2002-06-20 | 2005-08-10 | 国际商业机器公司 | A system and method to re-synchronize client devices while refreshing them from a server |
| CN1725186A (en) * | 2004-07-23 | 2006-01-25 | 中兴通讯股份有限公司 | Multiple data base data syne method |
| CN1846410A (en) * | 2003-07-09 | 2006-10-11 | 北方电讯网络有限公司 | Method for updating and managing synchronization identifier by using release messages or status request and response |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003186891A (en) * | 2001-12-20 | 2003-07-04 | Toshiba Corp | Link collection generating device and link collection generating method |
| CN1653420A (en) * | 2002-06-20 | 2005-08-10 | 国际商业机器公司 | A system and method to re-synchronize client devices while refreshing them from a server |
| CN1846410A (en) * | 2003-07-09 | 2006-10-11 | 北方电讯网络有限公司 | Method for updating and managing synchronization identifier by using release messages or status request and response |
| CN1725186A (en) * | 2004-07-23 | 2006-01-25 | 中兴通讯股份有限公司 | Multiple data base data syne method |
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