WO2013123764A1

WO2013123764A1 - End-to-end optical cross connection configuration method and device

Info

Publication number: WO2013123764A1
Application number: PCT/CN2012/079923
Authority: WO
Inventors: 姚志伟; 张德超
Original assignee: 烽火通信科技股份有限公司
Priority date: 2012-02-20
Filing date: 2012-08-10
Publication date: 2013-08-29
Also published as: CN102547494A; MY175578A; CN102547494B

Abstract

An end-to-end optical cross connection configuration method and device relate to the field of WDM and OTN equipment management. The method comprises the steps: S1: performing collection and establishing a unit disk management object data set and an optical port management object data set in an OTN network; S2: performing collection and establishing an inter-node optical fiber connection management object data set; S3: performing collection and establishing an intra-node optical fiber connection management object data set; S4: performing collection and establishing an optical channel management object data set; S5: through analysis of an optical fiber connection object sequence and optical port information, checking to see whether a wavelength conflict occurs at the same wavelengths at different optical source positions, and if yes, directly ending the process; S6: through analysis of an optical fiber connection management object sequence, automatically searching for the optical port and wavelength information required for configuration of a reconfigurable optical add-drop multiplexer cross processing unit disk, and establishing optical cross configuration data. In the method and device, human memorization is avoided, parameters and errors in operation are collected, and meanwhile, the network operating cost is reduced.

Description

Method and device for end-to-end optical cross-connect configuration

The present invention relates to the field of device management of WDM (Wavelength Division Multiplexing) and optical transport network (Optical Transport Network), and specifically relates to a method and apparatus for end-to-end optical cross-connection configuration. Background technique

In the optical transmission network, WDM technology has been widely used. At the same time, as the data service continues to grow, the requirements for dynamically allocating resources to the network are constantly increasing. In this case, an intelligent optical transmission device capable of dynamically allocating resources such as wavelengths and optical fibers in the optical layer is required. OADM (Optical Add-Drop Multiplexer) is an important node device for implementing intelligent optical layer. It can be divided into FOADM (Fixed Optical Add-Drop Multiplexer) and R0ADM.

(Reconfigurable Optical Add-Drop Multiplexer, reconfigurable add/drop multiplexing). The upper and lower wavelengths of the former are preset. When reconfiguring, the physical connection structure of the device needs to be changed, and the service transmission must be stopped. The upper and lower wavelengths and transmission directions of the latter can be dynamically reconfigured according to network requirements, and It does not affect the services that are running on other wavelengths. Obviously, R0ADM is more in line with the needs of network development.

At present, optical layer cross-devices use WSS (Wavelength Selective Switching) to control the intersection of optical layers to construct R0ADM nodes. Multiple WSS devices are used in the nodes, and multi-dimensional connections are formed through optical connections between optical ports. The optical layer cross matrix. When scheduling wavelengths between multiple directions, you need to collect optical port information and scheduled wavelength information in multiple directions, and manually configure multiple R0ADM nodes in the unit disk one by one. In the case of complex connections, manual configuration is quite cumbersome and error prone. Summary of the invention

In view of the deficiencies in the prior art, the present invention aims to provide an end-to-end optical cross-connect configuration method and apparatus for automatically operating the entire optical channel path sequence to avoid errors in manual memory, parameter collection, and operation. At the same time, reduce network operating costs.

To achieve the above objective, the present invention adopts an end-to-end optical cross-connection configuration method, which includes the following steps: S1. Collecting optical layer signal processing unit disks and optical port information of each node in the 0TN network, for each The unit disk and the optical port it has, respectively establish a unit disk management object data set and an optical port management object data set; S2. between the collection nodes, the optical fiber between the source end output optical port and the sink end input optical port Connection information, establishing an optical data connection management object data set between nodes; S3. Collecting optical connection information between the optical node signal processing unit and the output optical port to the input optical port, and establishing a data connection management object data set in the node S4. Collecting a sequence of optical fiber connection objects from the optical output port of the source optical forwarding unit to the input optical port of the optical forwarding unit of the sink, establishing an optical channel management object set; S5. managing objects between different optical channels Optical fiber connection object sequence and optical port information analysis, checking whether the same wavelength of different light source positions passes through the same optical port to form a wavelength conflict, and if there is a conflict, directly ends; S6. By managing the sequence of the optical fiber connection management object included in the single optical channel management object Instance relationship, analysis of optical port information, automatic search reconfigurable Cross-multiplexed optical inserted optical port wavelength information processing unit required for the disc configuration, establishes an optical cross configuration data.

Based on the above technical solution, the detailed steps in S1 are as follows: S101. Search for the unit disk of the optical layer signal processing, collect the unit disk information, classify the unit disk according to the level of the processed optical layer signal, and establish a unit disk object. And a set thereof; for each different unit disk object, retrieving its optical port configuration information; S102. Checking whether the unit disk object is an optical signal processing unit, and if not, directly entering the next unit disk; S103. The definition of the data file in the XML format, the basic configuration data of the optical port is constructed, the state of the connection relationship is initialized, and the optical port management object is established; S104. The optical port is established according to the classification of the unit disk of the optical port and the signal type of the optical port. Level information data and configuration information data specific to the optical port; S105. Save the current optical port information object to the optical port management object data set of the unit disk object, and check whether all optical ports of the current unit disk have been retrieved, and if not, then Into S102, continue to establish the next optical port management object; S106. Unit holding unit disc object to the disc object in the collection, checking all the optical network units the disc layer signal processing has been retrieved whether the current completed, if not, turn into S101, proceeds to the next disk unit.

Based on the foregoing technical solution, the basic configuration data of the optical port includes the interface number, connection direction, capacity, and name of the optical port.

Based on the above technical solution, in S103, a wavelength configuration is added to an optical port including a transmitting and receiving wavelength, and a mark and an arrangement manner are set for the optical cross-device interface.

Based on the above technical solution, the detailed steps in S2 are as follows: S201. Collecting optical fiber connection information between nodes in the network, and establishing an optical fiber connection management object between nodes from the source end light emitting port to the sink end light receiving port; S202. Collect basic configuration data of the fiber connection management object; S203. Connect the current inter-node fiber connection The management object is saved to the data collection of the fiber connection management object.

Based on the foregoing technical solution, the basic configuration data of the optical fiber connection management object includes a fiber optic shelf, a length, a cost, and a mark.

On the basis of the above technical solution, the optical fiber connection management object construction process between the nodes is implemented by the topology configuration of the network node, and represents the optical cable from the source node group optical interface to the sink node optical interface. To record the relevant parameter information of the optical cable and provide the cost required for the route search between the nodes, the detailed steps in the S3 are as follows: S301. Collect the optical fiber connection information inside the single network node, and establish the slave source light. The signal processing unit disc outputs the optical port to the intra-node fiber optic connection management object of the input optical port of the next-level optical signal processing unit disk; S302. Collects the basic configuration information of the optical fiber connection management object, and if it is connected to the optical fiber of the optical cross-connect configuration device, Then, corresponding configuration data and a configuration interface are generated according to the connected optical cross-connect unit disk configuration item; S303. The current node internal optical fiber connection management object is saved in the fiber connection management object data set.

Based on the foregoing technical solution, the basic configuration information of the optical fiber connection management object includes a cost and a dispersion compensation parameter of the optical fiber connection management object.

Based on the above technical solution, the detailed steps in S4 are as follows: S401. Establish an optical channel management object, collect basic information of the optical channel management object; S402. Search for inter-node fiber connection from the source node to the sink node, and generate an inter-node connection. The optical fiber connection object sequence is saved to the optical fiber connection object sequence set of the optical channel management object; S403. Searching the optical channel connection object sequence set of the optical channel management object, and checking the output optical port of the optical connection object between the previous node and the subsequent optical connection object The input optical port retrieves the fiber connection object in the node inside the node where the two optical ports are located, searches for the fiber connection between the two optical ports, generates a sequence of the fiber connection object in the node, and inserts the fiber connection sequence saved to the optical channel object. S404. Check whether the path sequence of the fiber connection object inside the node is successfully found. If the route is successfully found, the fiber connection between the nodes in the next channel of the optical channel management object is processed. If not, the optical channel management object is discarded. End; complete all fiber connections After treatment managing object, the optical path management object data is valid, entering S405; S405 saves the management object light path to the optical channel configuration data set.

Based on the foregoing technical solution, the basic information of the optical channel management object includes at least a source and sink node, a name, a rate level, and a protection configuration of the optical channel management object.

Based on the foregoing technical solution, the S402 first processes the inter-node connection by using a fast route search algorithm, and then generates a sequence of the internal fiber connection object of the node and combines it into the existing sequence. It is verified.

Based on the above technical solution, the detailed steps in S5 are as follows: S501. Select an optical channel object to be detected, obtain the wavelength configuration of the source, sink node, and the optical port, and connect the data between the nodes of the optical channel object. Obtaining the node information that the optical channel passes through, saves it to the node data set, and obtains all the input optical port information that the optical channel passes through the inter-node and intra-fiber connection data, and saves the information to the optical port data set; S502. Retrieve all optical channel data Collecting, selecting a light channel object to be compared; S503. Checking whether the wavelength configuration of the transmitting and receiving ports of the optical channel source node to be compared is consistent with the wavelength of the transmitting and receiving ports of the source node of the optical channel to be detected; The wavelength configuration of the transmitting and receiving ports of the optical channel sink node is consistent with the wavelength of the transmitting and receiving ports of the optical channel sink node to be detected; if not, the process proceeds to S506; if all are consistent, the process proceeds to S504 to continue. S504. Acquire, by using the fiber connection data of the inter-node connection of the optical channel of the comparison, the node information that the optical channel passes through, and check whether the node information has the same item as the node through which the optical channel to be detected passes, and if yes, transfer to S505. If no, go to S506; S505. Check the inter-node and intra-node fiber connection data of the optical channel object being compared, and check whether the input optical port of each fiber connection data object is in the input optical port information of the optical channel to be detected. In the data set, if yes, it is determined that the optical channel to be detected has a wavelength conflict with the optical channel to be compared at the input optical port, and ends; if not, the process proceeds to S506. S506. Check if all optical channel objects are compared? If all comparisons are made, the process proceeds to S507. If not all the inspections are completed, the process proceeds to step S502 to check the next optical channel. S507. It is determined that the optical channel data to be detected does not have a wavelength conflict with other optical channel data in the set.

Based on the above technical solution, the detailed steps in S6 are as follows: S601. Select an optical channel management object, establish cross configuration data, and obtain wavelength information of the source, sink node, and optical port of the optical channel object as optical crossover. The wavelength configuration parameter; S602. traversing the internal fiber connection sequence of the optical channel, checking whether the optical ports of the optical fiber connection object are wavelength selective devices, and if yes, proceeding to step S603; if not, proceeding to S604; S603. The wavelength selection configuration of the optical port of the connection object connected to the wavelength selective switch device is set to ON corresponding to the optical channel wavelength, so that the optical channel wavelength can pass through the wavelength selection device; S604. Check whether the optical fiber connection object of the node of the optical channel is completely set. If yes, go to step S605. If no, go to step S602 to continue checking the next fiber connection. S605. Set all the optical wavelength selection devices to the unit disk to complete the end-to-end optical cross-connection configuration of the optical channel.

The present invention also provides an apparatus for an end-to-end optical cross-connect configuration, comprising: a unit disk and an optical port configuration sub-module for collecting and managing information of the optical signal processing unit in the optical transmission device; The information processing sub-module is used to complete the collection and management of the logical relationship between the optical ports; the end-to-end optical channel processing sub-module is used to complete the optical path search, path information collection, and wavelength collision detection; the optical cross configuration processing sub-module To complete the collection of optical cross-configuration information, configuration parameters are generated and delivered.

On the basis of the foregoing technical solutions, the unit disk and the optical port configuration sub-module are responsible for loading and saving the unit disk classification, basic information, configuration structure and interface of the optical signal processing unit, and the basic data information of the optical port of each unit disk. Special configuration such as connection status and wavelength, providing various data retrieval and detection analysis.

Based on the foregoing technical solution, the optical fiber connection information processing sub-module is responsible for loading and saving the configured optical fiber connection information, and configuring the optical fiber connection and the intra-node optical fiber between the nodes through the connected source illumination port and the sink optical port configuration. Connections, cross-connects and common connections with optical cross-configuration devices, and retrieval of individual fiber-optic connection data sequences, and analysis and detection of fiber-optic connection sequences.

Based on the above technical solution, the end-to-end optical channel processing sub-module is responsible for constructing and managing the optical channel data object set, retrieving the optical channel data object set, and detecting the wavelength conflict.

On the basis of the foregoing technical solution, the optical cross-configuration processing sub-module processes the management object inside the node, comprehensively analyzes the optical fiber connection sequence included in the optical channel, and the configuration information of the transmitting and receiving wavelengths of the source and the sink node, and completes the node. Internal wavelength path analysis and processing, resulting in optical cross-configuration, complete communication and configuration management operations with the device.

The invention has the advantages that: the method and the device for the end-to-end optical cross-connection configuration, the cumbersome configuration operation required by the manual unit-by-unit disk is simplified, the automation operation of the entire optical channel path sequence is simplified, the manual configuration is avoided, and the configuration is reduced. The network operation cost, even if the link passes through many nodes and the direction connection is complicated, the uterus memory, the collection parameters and the operation may generate errors, and the configuration is simple and convenient. DRAWINGS

1 is a general flow chart of a method for configuring an end-to-end optical cross-connection according to an embodiment of the present invention; FIG. 2 is a flow chart of collecting optical signal processing unit disks and optical ports thereof in FIG. 1 and classifying processing; FIG. A static relationship diagram of a cell disk object and an optical port object.

4 is a flow chart of collecting the fiber connection information between nodes and constructing a data set in FIG. 1;

5 is a flow chart of the optical fiber connection between the optical signal processing unit disks in the collecting node of FIG. 1; FIG. 6 is a flow chart of constructing the optical path object in FIG. 1 and constructing the optical path through the optical fiber connecting object sequence; 7 is a flow chart of the wavelength conflict between the detecting optical channel and other optical channels in the set in FIG. 1; FIG. 8 is a flow chart of generating an optical cross configuration by the optical fiber connecting object sequence included in the optical channel in FIG.

FIG. 9 is a structural block diagram of an apparatus for an end-to-end optical cross-connect configuration according to an embodiment of the present invention. detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1, the steps of the method for an end-to-end optical cross-connect configuration of the present invention are as follows:

51. Collect optical layer signal processing unit disk and optical port information of each node in the 0TN network, and define each optical signal processing unit disk and the optical port included therein by using an XML format data file to define optical port characteristics. The optical signal processed by the unit disk is used to distinguish the configuration information of the optical port; the management object is established for each unit disk and the optical port it has, and the unit disk and the optical port management object data set are established.

52. Collect the optical fiber connection information between the nodes in the 0TN network, from the source output optical port to the sink input optical port, establish an inter-node fiber connection management object according to the rule, and establish a fiber connection management object data set.

53. Inside the collection node, the optical layer connection information between the optical port signal processing unit and the input optical port is outputted, the optical fiber connection management object in the node is established, and the optical fiber connection management object data set is established.

54. Collect a fiber connection object sequence from the source optical forwarding unit disk output optical port to the sink end optical forwarding unit disk input optical port, establish an optical channel management object, and establish an optical channel management object set.

55. Through the optical fiber connection object sequence and optical port information analysis between different optical channel management objects, check whether the same wavelength of different light source positions pass through the same optical port to form a wavelength conflict, if there is a conflict, directly end, if there is no conflict, enter S6 .

56. Automatically search for optical ports and wavelength information required for reconfigurable add/drop multiplexed optical cross processing unit disk configuration by analyzing the sequence relationship of optical fiber connection management object sequences and optical port information included in a single optical channel management object. , Establish optical cross configuration data.

As shown in Figure 2, the process of collecting the optical signal processing unit disk and its optical port in S1 and classifying the processing is as follows:

S101. Find a unit disk of the optical layer signal processing, collect unit disk information, and follow the unit disk according to the location The levels of the layering signals are classified, and the unit disk objects and their collections are established; for each different unit disk object, the optical port configuration information is retrieved.

5102. Check whether the unit disk object is an optical signal processing unit. If not, go directly to the next unit disk and transfer to S101.

5103. By reading the definition of the data file in the XML format, construct basic configuration data such as the interface number, connection direction, capacity, and name of the optical port, initialize the connection relationship state, and establish an optical port management object.

5104. According to the classification of the unit disk where the optical port is located and the signal type to which the optical port is connected, the hierarchical information data of the optical port and the configuration information data specific to the optical port are established. The wavelength configuration is added to the port containing the transmit and receive wavelengths, and the mark and configuration mode is set for the optical cross-device interface.

5105. Save the current optical port information object to the optical port management object data set of the unit disk object, check whether all the optical ports of the current unit disk have been retrieved, and if not, proceed to S102 to continue to establish the next optical port management object. If the search has been completed, go to S106.

5106. Save the current unit disk object to the unit disk object set, check whether the unit disk of all optical layer signal processing in the current network has been retrieved, and if not, go to S101 and continue processing the next unit disk; if yes, End.

The unit disk object involved in the above steps includes the optical port object data set under the unit disk, providing a fast retrieval interface, and the optical port object can also retrieve the unit disk and node information. As shown in FIG. 3, a static relationship diagram of a unit disk object and an optical port object, the unit disk object includes a name, a category basic attribute, and saves a data set of all optical ports on the unit disk; the optical port object includes a name, a type, and a level. Basic properties, for optical ports that include a specific wavelength configuration, port objects that contain optical cross-parameters, routing parameters, are created by extending subcategories that are used to automatically search and construct end-to-end optical cross-connect parameter sets.

As shown in FIG. 4, the process of collecting the inter-node fiber connection information and constructing the data set in step S2 is as follows:

5201. Collect optical fiber connection information between nodes in the network, and establish an optical fiber connection management object between nodes from the source end light emitting port to the sink end light receiving port.

5202. Collect basic configuration data such as fiber frame, length, cost, and mark of the fiber connection object.

5203. The current inter-node fiber connection management object is saved, and the current inter-node fiber connection information object is saved to the fiber connection object data set.

In the above steps, the fiber connection construction process between the nodes is implemented through the topology configuration of the network nodes. Now, it represents the optical cable from the source node group optical interface to the sink node group optical interface, which can be used to record the relevant parameter information of the optical cable, and can provide the cost parameter required for route search between nodes.

As shown in FIG. 5, the optical fiber connection process between the optical signal processing unit disks in the node is collected in step S3, and the detailed steps are as follows:

5301. Collect fiber connection information inside a single network node, and establish an intra-node fiber connection management object from the source optical signal processing unit disk output optical port to the input optical port of the next layer optical signal processing unit disk. The internal fiber connection information is different from the external connection. Because the external channel and the internal data need to be processed separately when the optical channel path is generated, the processing response can be speeded up, and at the same time, the optical fiber connection object with the optical cross connection can be distinguished and can be recorded and optically intersected. Configure data about parameters, directions, etc., to be used when generating related configuration data.

5302. Collect basic configuration information such as the cost of the fiber connection management object and the dispersion compensation parameter. If the fiber is connected to the optical cross-connect configuration device, the corresponding configuration data and the configuration interface are generated according to the connected optical cross-connect unit disk configuration item.

5303. Save the current node internal fiber connection management object to the fiber connection management object data set.

As shown in FIG. 6, the flow of constructing the optical channel object for the step S4 in FIG. 1 and constructing the optical path through the optical fiber connection object sequence is as follows:

5401. Establish an optical channel management object, and collect basic information such as source and sink nodes, name, rate level, and protection configuration of the optical channel management object.

5402. Search for the inter-node fiber connection from the source node to the sink node, generate a sequence of inter-node fiber connection objects, and save the sequence of the fiber connection object sequence to the optical channel management object. First, the inter-node connection can be processed by using a fast route search algorithm. At this time, the optical channel path data is not necessarily correct, and is also incomplete. The process of generating the internal connection sequence of the node and combining it into the existing sequence is required. Verify it in .

5403. Searching the optical fiber connection object sequence set of the optical channel management object, checking the output optical port of the optical connection object between the previous node and the input optical port of the subsequent optical connection object, and searching for the intra-node optical fiber inside the node where the two optical ports are located Connect the object, find the fiber connection between the two optical ports, generate a sequence of fiber connection objects in the node, and insert a set of fiber connection sequences saved to the optical channel object.

5404. Check whether the path sequence of the fiber connection object inside the node is successfully found. If the route is successfully found, the fiber connection between the nodes in the next segment of the optical channel management object is processed. If not found, the device discards. The optical channel management object is terminated; after all the fiber connection management object processing is completed, the optical channel management object data is valid, and the process proceeds to S405;

S405. Save the optical channel management object to the optical channel configuration data set.

As shown in FIG. 7, a flow chart for detecting whether there is a wavelength conflict between the optical channel and other optical channels in the set is performed in step S5 in FIG. 1, and the specific steps are as follows:

5501. Select an optical channel object to be detected, obtain a wavelength configuration of the source, the sink node, and the optical port, and obtain the node information that the optical channel passes through the inter-node fiber connection data of the optical channel object, and save the node information to the node data set. All the input optical port information that the optical channel passes through the inter-node and intra-node fiber connection data is saved to the optical port data set.

5502. Retrieve all optical channel data sets and select a light channel object for comparison.

5503. Check whether the wavelength configuration of the transmitting and receiving ports of the optical channel source node to be compared is consistent with the wavelength of the transmitting and receiving ports of the source node of the optical channel to be detected; and comparing the transmitting and receiving ports of the optical channel sink node for comparison. The wavelength configuration is the same as the wavelength of the transmitting and receiving ports of the optical channel sink node to be detected. If only all of them are consistent or all of them are inconsistent, if they do not match, then go to S506. If all are consistent, go to S504.

5504. Obtain the node information that the optical channel passes through the fiber connection data of the inter-node connection of the optical channel that is compared, and check whether the node information has the same item as the node through which the optical channel to be detected passes, and if yes, go to S505. If no, go to S506.

5505. Check the inter-node and intra-node fiber connection data of the optical channel object to be compared, check whether the input optical port of each fiber connection data object is in all the input optical port information data sets of the optical channel to be detected, and if so, determine The optical channel to be detected has a wavelength conflict with the optical channel to be compared at the input optical port, and ends; if not, the process proceeds to S506.

5506. Check if all optical channel objects are compared? If they are all compared, go to S507. If not all the checks are completed, go to step S502 to enter the next optical channel.

5507. It is determined that there is no wavelength conflict between the optical channel data to be detected and other optical channel data in the set.

As shown in FIG. 8, the flow of the optical cross-configuration is generated by the optical fiber connection object sequence included in the optical channel in step S6 of FIG. 1, and the specific steps are as follows:

S601. Select an optical channel management object, establish cross-configuration data, and obtain wavelength information of the source, the sink node, and the optical port of the optical channel object as wavelength configuration parameters of the optical cross. 5602. Traverse the internal fiber connection sequence of the optical channel, and check whether the optical ports at both ends of the optical fiber connection object are wavelength selective devices. If yes, go to step S603, if no, go to S604.

5603. The wavelength selection configuration of the optical port connecting the optical fiber connection object to the wavelength selective switching device is set to be on the optical channel wavelength term, so that the optical channel wavelength can pass through the wavelength selection device; obtaining the configuration information of the optical port of the wavelength selection device, Other parameters are required for configuration.

5604. Check whether all the fiber connection objects in the node of the optical channel are set, if yes, go to step S605, if no, go to step S602 to continue checking the next fiber connection.

5605. Set all optical wavelength selection device configurations to the unit disk to complete the end-to-end optical cross-connection configuration of the optical channel. FIG. 9 is a structural block diagram of an apparatus for configuring an end-to-end optical cross-connection according to an embodiment of the present invention. The device for the end-to-end optical cross-connect configuration includes: a unit disk, an optical port configuration sub-module 1, a fiber-optic connection information processing sub-module 2, an end-to-end optical channel processing sub-module 3, and an optical cross-configuration processing sub-module 4. The unit disk and the optical port configuration sub-module 1 are respectively connected to the optical fiber connection information processing sub-module 2 and the end-to-end optical channel processing sub-module 3, the optical fiber connection information processing sub-module 2, the end-to-end optical channel processing sub-module 3, and the optical cross-configuration The processing sub-module 4 has data and interface connections.

The unit disk and the optical port configuration sub-module 1 are configured to complete collection and management of information of the optical signal processing unit in the optical transmission device; responsible for loading and saving the unit disk classification, basic information, configuration structure and interface of the optical signal processing unit, each The special configuration of the optical port basic data information, connection status, wavelength, etc. of the unit disk provides various data retrieval and detection analysis. The optical fiber connection information processing sub-module 2 is configured to collect and manage the logical relationship between the optical ports; load and save the configured optical fiber connection information, and configure the optical fibers between the nodes through the connected source light-emitting port and the sink light-receiving port. Connection and intra-node fiber connection, cross-connection and common connection with connected optical cross-configuration devices, and retrieval of each fiber connection data sequence, and analysis and detection of fiber connection sequences. The end-to-end optical channel processing sub-module 3 is used to complete optical path search, path information collection, and wavelength collision detection; responsible for constructing and managing optical channel data object sets, retrieving optical channel data object sets, and detecting wavelength conflicts. The optical cross-configuration processing sub-module 4 is configured to complete optical cross-configuration information collection, configuration parameter generation and delivery; processing internal management objects, and optical fiber connection sequences and source and sink node transmissions included in the optical channel Comprehensive analysis of optical wavelength configuration information, complete internal wavelength path analysis and processing of the node, generate optical cross-configuration, complete communication and configuration management operations with the device.

The present invention is not limited to the above embodiments, and is not known to those skilled in the art Many modifications and refinements can be made without departing from the principles of the invention, and such modifications and refinements are also considered to be within the scope of the invention. The contents not described in detail in the present specification belong to the prior art well known to those skilled in the art.

Claims

Claim

A method for an end-to-end optical cross-connect configuration, comprising the steps of:

51. Collect optical layer signal processing unit disk and optical port information of each node in the 0TN network, and establish a unit disk management object data set and an optical port management object data set for each unit disk and the optical port it has;

52. Between the collection nodes, the optical fiber connection information between the output optical port and the sink input optical port is established, and the data connection management object data set between the nodes is established;

53. Inside the collection node, the optical layer connection information between the optical port and the input optical port is outputted between the optical layer signal processing units, and the data connection management object data set in the node is established;

54. Collect a fiber connection object sequence from the source optical forwarding unit disk output optical port to the sink end optical forwarding unit disk input optical port, and establish an optical channel management object set;

55. Through the optical fiber connection object sequence and optical port information analysis between different optical channel management objects, check whether the same wavelength of different light source positions pass through the same optical port to form a wavelength conflict, and if there is a conflict, directly terminate;

2. A method of end-to-end optical cross-connect configuration according to claim 1, wherein the detailed steps in S1 are as follows:

5101. Search for the unit disk of the optical layer signal processing, collect the unit disk information, classify the unit disk according to the level of the processed optical layer signal, and establish a unit disk object and a set thereof; for each different unit disk object, retrieve the same Optical port configuration information;

5102. Check whether the unit disk object is an optical signal processing unit, and if not, directly enter the next unit disk;

5103. By reading the definition of the data file in the XML format, constructing basic configuration data of the optical port, initializing the connection relationship state, and establishing an optical port management object;

5104. Establishing hierarchical information data of the optical port and configuration information data specific to the optical port according to the classification of the unit disk in which the optical port is located and the signal type to which the optical port is connected;

5105. Save the current optical port information object to the optical port management object data set of the unit disk object If yes, check whether all the optical ports of the current unit disk have been retrieved, and if not, proceed to S102 to continue to establish the next optical port management object;

S106. Save the current unit disk object to the unit disk object set, check whether the unit disk of all optical layer signal processing in the current network has been retrieved, and if not, transfer to S101 to continue processing the next unit disk.

The method for configuring an end-to-end optical cross-connect according to claim 2, wherein: the basic configuration data of the optical port includes an interface number, a connection direction, a capacity, and a name of the optical port.

The method of claim 2, wherein in the S103, the wavelength configuration is increased for the optical port including the transmitting and receiving wavelengths, and the optical cross device interface is configured. Mark and configuration.

5. The method of an end-to-end optical cross-connect configuration according to claim 1, wherein the detailed steps in S2 are as follows:

5201. Collecting optical fiber connection information between nodes in the network, and establishing an optical fiber connection management object between the nodes from the source end light emitting port to the sink end light receiving port;

5202. Collect basic configuration data of the optical fiber connection management object;

5203. Save the current inter-node fiber connection management object to the data collection of the fiber connection management object.

6. The method of claim 5, wherein the basic configuration data of the optical fiber connection management object comprises a fiber optic shelf, a length, a cost, and a label.

The method for configuring an end-to-end optical cross-connect according to claim 5, wherein: the optical fiber connection management object construction process between the nodes is implemented by a topology configuration of the network node, which represents The optical cable of the source node group optical interface to the optical interface of the sink node group is used to record the relevant parameter information of the optical cable, and provides the cost parameter required for the route search between nodes.

8. The method of claim 1, wherein the detailed steps in S3 are as follows:

5301. Collecting optical fiber connection information inside a single network node, and establishing an intra-node optical fiber connection management object from the source optical signal processing unit disk output optical port to the input optical port of the next-level optical signal processing unit disk;

5302. Collect basic configuration information of the optical fiber connection management object. If the optical fiber is connected to the optical cross-connect configuration device, generate corresponding configuration data and configuration according to the connected optical cross-connect unit disk configuration item. Interface

S303. Save the current node internal optical fiber connection management object to the fiber connection management object data set.

9. The method according to claim 8, wherein the basic configuration information of the optical fiber connection management object includes a cost and a dispersion compensation parameter of the optical fiber connection management object.

10. The method of an end-to-end optical cross-connect configuration according to claim 1, wherein the detailed steps in S4 are as follows:

5401. Establish an optical channel management object, and collect basic information of the optical channel management object;

5402. Search for the inter-node fiber connection from the source node to the sink node, generate a sequence of inter-node fiber connection objects, and save the sequence of the fiber connection object sequence to the optical channel management object;

5403. Searching the optical fiber connection object sequence set of the optical channel management object, checking the output optical port of the optical connection object between the previous node and the input optical port of the subsequent optical connection object, and searching for the intra-node optical fiber inside the node where the two optical ports are located Connect the object, find the fiber connection between the two optical ports, generate a sequence of fiber connection objects in the node, and insert a set of fiber connection sequences saved to the optical channel object;

5404. Check whether the path sequence of the fiber connection object inside the node is successfully found. If the path is successfully found, the fiber connection between the nodes in the next channel of the optical channel management object is processed. If not, the optical channel management object is discarded and ends. After all the optical fiber connection management object processing is completed, the optical channel management object data is valid, and the process proceeds to S405;

5405. Save the optical channel management object to the optical channel configuration data set.

The method for configuring an end-to-end optical cross-connect according to claim 10, wherein: the basic information of the optical channel management object includes at least a source and sink node of an optical channel management object, a name, a rate level, Protect the configuration.

12. The method of claim 10, wherein: in S402, a fast route search algorithm is used to process an inter-node connection, and then a sequence of internal fiber connection objects of the node is generated and Validate it in the process of combining it into an existing sequence.

13. The method of an end-to-end optical cross-connect configuration according to claim 1, wherein the detailed steps in S5 are as follows:

S501. Select an optical channel object to be detected, obtain a wavelength configuration of the source, the sink node, and the optical port, and obtain the node information that the optical channel passes through the optical fiber connection data of the optical channel object. Stored in the node data set, and obtains all the input optical port information that the optical channel passes through the inter-node and intra-fiber connection data, and saves the information to the optical port data set;

5502. Retrieve all optical channel data sets, and select a light channel object to be compared;

5503. Check whether the wavelength configuration of the transmitting and receiving ports of the optical channel source node to be compared is consistent with the wavelength of the transmitting and receiving ports of the source node of the optical channel to be detected; and comparing the transmitting and receiving ports of the optical channel sink node for comparison. The wavelength configuration is consistent with the wavelength of the transmitting and receiving ports of the optical channel sink node to be detected; if not, the process proceeds to S506; if all are consistent, the process proceeds to S504 to continue.

5504. Obtain the node information that the optical channel passes through the fiber connection data of the inter-node connection of the optical channel that is compared, and check whether the node information has the same item as the node through which the optical channel to be detected passes, and if yes, go to S505. If no, go to S506;

5506. Check if all optical channel objects are compared? If all comparisons are made, the process proceeds to S507. If not all the inspections are completed, the process proceeds to step S502 to check the next optical channel.

5507. It is determined that the optical channel data to be detected does not have a wavelength conflict with other optical channel data in the set.

14. The method of an end-to-end optical cross-connect configuration according to claim 1, wherein the detailed steps in S6 are as follows:

5601. Select an optical channel management object, establish cross-configuration data, and obtain wavelength information of the source, the sink node, and the optical port of the optical channel object as wavelength configuration parameters of the optical crossover;

5602. traversing the internal optical fiber connection sequence of the optical channel, checking whether the optical port of the optical fiber connection object is a wavelength selection device, if yes, proceeding to step S603, if not, proceeding to S604;

5603. The wavelength selection configuration of the optical port connecting the optical fiber connection object to the wavelength selective switching device is set to be the corresponding optical channel wavelength term, so that the optical channel wavelength can pass through the wavelength selection device;

5604. Check whether all the optical fiber connection objects in the node of the optical channel are set, if yes, go to step S605, if no, go to step S602 to continue checking the next fiber connection;

5605. Set all optical wavelength selection device configurations to the unit disk to complete the end-to-end optical cross-connection configuration of the optical channel.

15. An apparatus for an end-to-end optical cross-connect configuration, comprising: The unit disk and the optical port configuration sub-module are used to collect and manage information of the optical signal processing unit in the optical transmission device;

The optical fiber connection information processing sub-module is used to collect and manage the logical relationship between the optical ports; the end-to-end optical channel processing sub-module is used to complete optical path search, path information collection, and wavelength collision detection;

The optical cross-configuration sub-module is used to collect optical cross-configuration information and configure parameter generation and delivery.

The apparatus of claim 15 , wherein the unit disk and the optical port configuration sub-module are responsible for loading and storing the unit disk classification of the optical signal processing unit, and the basic Information, configuration structure and interface, special configuration of optical port basic data information, connection status, wavelength, etc. of each unit disk, providing various data retrieval and detection analysis.

17. The apparatus of claim 15, wherein: the fiber optic connection information processing sub-module is responsible for loading and saving the configured fiber optic connection information through the connected source illumination port and The optical port configuration of the sink, the fiber connection between the nodes of the classification structure and the fiber connection in the node, the cross connection and the common connection of the connected optical cross configuration device, the data sequence of each fiber connection are also retrieved, and the analysis and detection of the fiber connection sequence are realized.

18. An apparatus for end-to-end optical cross-connect configuration according to claim 15, wherein: said end-to-end optical channel processing sub-module is responsible for constructing and managing an optical channel data object set and retrieving optical channel data. Object collection and detection wavelength conflicts.

19. The apparatus of claim 15, wherein: the optical cross-configuration processing sub-module processes the management object inside the node, the optical fiber connection sequence and the source included in the optical channel. Comprehensive analysis of the transmit and receive wavelength configuration information of the sink node, complete analysis and processing of the internal wavelength path of the node, generate optical cross-configuration, and complete communication and configuration management operations with the device.