CN113890669B - Method and device for acquiring service signal flow of transmission network and electronic equipment - Google Patents
Method and device for acquiring service signal flow of transmission network and electronic equipment Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
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Abstract
The application discloses a method, a device and electronic equipment for acquiring a transmission network service signal flow, which are used for rapidly and accurately positioning the end-to-end flow direction of a service signal through the service signal of any layer of a transmission network. The method comprises the following steps: acquiring north interface data of an operation maintenance center OMC; acquiring subnet connection SNC data in each level of a transmission network based on the northbound interface data, wherein the SNC data comprises routing information of SNCs in corresponding levels and bearing relations between the SNCs and other levels; and determining the end-to-end service signal flow corresponding to each SNC in the transmission network based on the routing information of the SNC in each level and the bearing relation between the SNC and other levels through a recursion algorithm.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and an electronic device for acquiring a service signal flow of a transmission network.
Background
With the continuous development of transmission technology, OTN (Optical Transport Network ) and other transmission networks with flexible and efficient service scheduling mechanism and powerful and complete network maintenance and management capability have been developed. Taking an OTN network as an example, the OTN network is a transport core bearer network, and the bearer transport metropolitan area network, the transformation network, the wireless network, and the like, and the service types relate to various service types such as customer collection, home customer, and the like. Because the OTN network structure is complex, the service signal flow in the OTN network is complex, and the end-to-end flow direction of the service signal is difficult to check, so that the efficiency of alarm discovery and positioning in the OTN network is low, and the efficiency of network cutting or OTN network adjustment is low.
Disclosure of Invention
The embodiment of the application aims to provide a method, a device and electronic equipment for acquiring a transmission network service signal flow, so that the end-to-end flow direction of the service signal can be rapidly and accurately positioned through the service signal of any level of a transmission network.
In order to solve the technical problems, the embodiment of the application adopts the following technical scheme:
in a first aspect, an embodiment of the present application provides a method for acquiring a service signal flow of a transport network, including:
acquiring north interface data of an operation maintenance center OMC;
acquiring subnet connection SNC data in each level of a transmission network based on the northbound interface data, wherein the SNC data comprises routing information of SNCs in corresponding levels and bearing relations between the SNCs and other levels;
and determining the end-to-end service signal flow corresponding to each SNC in the transmission network based on the routing information of the SNC in each level and the bearing relation between the SNC and other levels through a recursion algorithm.
Optionally, the determining, by a recursive algorithm, an end-to-end service signal flow corresponding to each SNC of the transmission network based on the routing information of the SNC in each level and a bearer relationship between the SNC and other levels includes:
traversing all SNCs of the transport network;
each time traversing to an SNC, searching SNCs in all layers of the transmission network according to the sequence from a client layer to a service layer, and determining the segment route information between a source end and a destination end of the SNC based on the route information of the SNC and the route information of the SNC in the service layer carried by the SNC;
and determining the end-to-end service signal flow corresponding to the SNC according to the segment routing information of the SNC.
Optionally, the routing information includes source end identification information, destination end identification information and a routing type;
each time traversing to an SNC, searching each layer of the transmission network according to the sequence from a client layer to a service layer, determining the segment routing information between the source end and the destination end of the SNC based on the routing information of the SNC and the routing information of the SNC in the service layer, wherein the segment routing information comprises the following steps:
each time traversing to an SNC, searching each layer of the transmission network by taking the first end of the SNC as a starting point according to the sequence from a client layer to a service layer, and searching a routing object of the next hop based on the identification information of the first end of the SNC and the routing type;
if the second end of the next-hop routing object is different from the second end of the SNC, updating the starting point based on the second end of the next-hop routing object, and repeatedly executing the operation of searching the next-hop routing object until the second end of the searched next-hop routing object is the same as the second end of the SNC;
determining segment route information between a source end and a destination end of the SNC based on the searched route object;
the first end is a source end, and the second end is a sink end; or the first end is a host end, and the second end is a source end.
Optionally, the method further comprises:
and storing the segment route information of all SNCs in the transmission network based on a data linked list.
Optionally, after determining the segment routing information between the source end and the destination end of all SNCs of the transmission network, the method further includes:
detecting whether unused cross-connections exist on each SNC of the transport network;
for SNCs with unused cross-connections, determining connection relations between a source end and a destination end of the unused cross-connections and network transmission equipment respectively based on layer rates of the unused cross-connections.
In a second aspect, an embodiment of the present application further provides an apparatus for acquiring a service signal flow of a transport network, including:
the first acquisition unit is used for acquiring the northbound interface data of the operation maintenance center OMC;
the second acquisition unit is used for acquiring the subnet connection SNC data in each level of the transmission network based on the northbound interface data, wherein the SNC data comprises the route information of the SNC in the corresponding level and the bearing relation between the SNC and other levels;
and the service signal flow determining unit is used for determining the end-to-end service signal flow corresponding to each SNC in the transmission network based on the routing information of the SNC in each level and the bearing relation between the SNC and other levels through a recursion algorithm.
Optionally, the service signal flow determining unit is specifically configured to:
traversing all SNCs of the transport network;
each time traversing to an SNC, searching SNCs in all layers of the transmission network according to the sequence from a client layer to a service layer, and determining the segment route information between a source end and a destination end of the SNC based on the route information of the SNC and the route information of the SNC in the service layer carried by the SNC;
and determining the end-to-end service signal flow corresponding to the SNC according to the segment routing information of the SNC.
Optionally, the routing information includes source end identification information, destination end identification information and a routing type;
the service signal flow determining unit determines segment routing information between source end and destination end of each SNC by:
each time traversing to an SNC, searching each layer of the transmission network by taking the first end of the SNC as a starting point according to the sequence from a client layer to a service layer, and searching a routing object of the next hop based on the identification information of the first end of the SNC and the routing type;
if the second end of the next-hop routing object is different from the second end of the SNC, updating the starting point based on the second end of the next-hop routing object, and repeatedly executing the operation of searching the next-hop routing object until the second end of the searched next-hop routing object is the same as the second end of the SNC;
determining segment route information between a source end and a destination end of the SNC based on the searched route object;
the first end is a source end, and the second end is a sink end; or the first end is a host end, and the second end is a source end.
Optionally, the apparatus further comprises:
and the storage unit is used for storing the segment route information of all SNCs in the transmission network based on the data linked list.
Optionally, the apparatus further comprises:
the detection unit is used for detecting whether unused cross connection exists on each SNC of the transmission network after the service signal flow determination unit determines the segment route information between the source end and the destination end of all SNCs of the transmission network;
a connection unit, configured to determine, for an SNC having an unused cross-connect, a connection relationship between a source end and a destination end of the unused cross-connect and a network transmission device, respectively, based on a layer rate of the unused cross-connect.
In a third aspect, an embodiment of the present application further provides an electronic device, including:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the method of the first aspect.
A sixth aspect the present embodiment also provides a computer readable storage medium, which when executed by a processor of an electronic device, causes the electronic device to perform the method of the first aspect.
The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:
SNC data in each layer of the transmission network can be obtained by analyzing the northbound interface data of the OMC, and further, end-to-end service signal flows of each SNC in the transmission network can be determined based on the SNC data in each layer through a recursion algorithm, so that the hierarchical structure and the end-to-end flow direction of each service signal flow in the transmission network can be obtained, further, the efficiency and the accuracy of fault location and network cutting of the transmission network can be improved, and the automatic management of the transmission network is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram illustrating a relationship between layers of a transport network, according to an example embodiment;
fig. 2 is a flow chart illustrating a method of acquiring a transport network traffic signal stream according to an exemplary embodiment;
fig. 3 is a flow chart illustrating another method of acquiring a transport network traffic signal stream according to an exemplary embodiment;
fig. 4 is a schematic diagram illustrating traffic signal flow in a transport network according to an exemplary embodiment;
fig. 5 is a schematic structural diagram illustrating an apparatus for acquiring a transport network traffic signal stream according to an exemplary embodiment;
fig. 6 is a schematic structural diagram illustrating another apparatus for acquiring a transport network traffic signal stream according to an exemplary embodiment;
fig. 7 is a schematic diagram of an electronic device according to an exemplary embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order to make it easier for a person skilled in the art to understand the technical solutions of the embodiments of the present application, the following first describes the structure of the transmission network.
A transport network is composed of several layers, for example, an OTN network is composed of from bottom to top of layers OTS (Optical Transmission Section, optical transport segment) layer, OMS (Optical Multiplex Section, optical multiplexing segment) layer, OCh (Optical Channel with Full Functionality, full function optical path) layer, OTUk (Completely Standardized Optical Channel Transport Unit-k, fully standardized optical path transmission unit-k) layer, ODUk (Optical Channel Data Unit-k, optical path data unit-k) layer and Client signal Client layer, for 6 layers, where each layer can be divided into a working route and a protection route according to directions, and the working route and the protection route are formed by concatenating a set of ordered and continuous network element ports. In addition, two adjacent layers are in a client layer/service layer relationship, the client layer and the service layer are in a relative concept, and a bearing and borne relationship is between the client layer and the service layer, for example, as shown in fig. 1, the OTS layer is a service layer of the OMS layer, and at this time, the OMS layer is the client layer, and the OMS layer bears the OTS layer; for another example, the OMS layer is a service layer of the OCH layer, where the OCH layer is a client layer, the OCH layer carries the OMS layer, and so on.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flow chart illustrating a process for acquiring a transport network traffic signal stream according to an exemplary embodiment. As shown in fig. 2, the method comprises the steps of:
s21, acquiring north interface data of an operation maintenance center OMC.
The northbound interface (Northbound Interface) of the OMC (Operation Maintenance Center, operation and maintenance center) is an interface for a manufacturer or operator to access and manage the network, i.e. an interface provided upwards.
In the embodiment of the application, the northbound interface data may include data such as an SNL channel file, an SNT routing file, an SNR bearing relation file, and the like. The SNL channel file records service path information in each layer of the transmission network, for example, source end identification information, destination end identification information and the like of each service path in each layer; detailed routing of each service path is described in the SNT file, and includes source end identification information, destination end identification information, routing type, direction and the like of each service path, wherein the routing type can include Cross-connection (shown by black solid dots in fig. 1), topology connection TOPO-LINK, service layer path and the like; the SNR file records the bearing relationship between each service path and other layers in the transmission network, such as service layer information carried by each service path.
S22, SNC data in each layer of the transmission network is acquired based on the northbound interface data.
The SNC (Subnetwork Connection, SNC) data of each hierarchy may include routing information of the SNCs within each hierarchy and bearer relationships with other hierarchies.
SNC refers to a logical resource object of a transport entity within the subnet of an end-to-end system, and in implementation, one SNC and one traffic path are equivalent. Specifically, SNC data in each layer in the transmission network can be obtained by analyzing and counting the northbound interface data of the OMC.
For example, the SNL file in the northbound interface data may be analyzed and counted to obtain source end identification information, destination end identification information, etc. of all service paths in each layer in the transmission network, and then the SNT file in the northbound interface data may be queried based on the source end identification information and/or the destination end identification information of each service path, so as to obtain the routing information of each service path, and the SNR file in the northbound interface data may be queried to obtain the bearing relationship between each service path and other layers.
S23, determining end-to-end service signal flows corresponding to SNCs in the transmission network based on the routing information of the SNCs in each layer and the bearing relation between the SNCs and other layers through a recursion algorithm.
Specifically, all SNCs of the transmission network can be traversed, each time one SNC is traversed, each layer of the transmission network is searched according to the sequence from a client layer to a service layer, and the segment route information between the source end and the destination end of the SNC is determined based on the route information of the SNC and the route information of the SNC in the service layer carried by the SNC; and finally, determining the end-to-end service signal flow corresponding to the SNC according to the segment route information between the source end and the destination end of the SNC. The segment routing information between the source end and the destination end of the SNC may include a logical Connection (including Cross-Connection, topology Connection TOPO-LINK, etc.), a LINK, a subnet Connection SNC, etc. between the source end and the destination end of the SNC.
And each routing segment corresponds to the active end and the destination end.
In one embodiment, each traversed SNC may be searched and parsed layer by layer for segment routes of the SNC from a source and/or a destination of the SNC. Specifically, each time traversing to an SNC, searching each layer of the transmission network according to the sequence from the client layer to the service layer by taking the first end of the SNC as a starting point, searching a route object of the next hop based on the identification information and the route type of the first end of the SNC, and judging whether the second end of the route object of the next hop is the same as the second end of the SNC; and if the two are different, updating the starting point based on the second end of the next-hop routing object, and repeatedly executing the operation of searching the next-hop routing object until the second end of the searched next-hop routing object is the same as the second end of the SNC, thereby determining the segmented routing information between the source end and the destination end of the SNC based on the searched routing object.
The first end of the SNC can be a source end of the SNC, and the second end of the SNC can be a sink end of the SNC; alternatively, the first end of the SNC may be the sink end of the SNC, and accordingly, the second end of the SNC may be the source end of the SNC. The routing object may be any one of the following logical objects: connection, link, subnetwork Connection SNC, etc.
In implementation, as shown in fig. 3, the total number of SNCs in the transmission network may be set as an initial iteration factor, i.e., l=total number of SNCs, each time the operation of searching for the routing object of the next hop is repeated with the first end of the SNC as a starting point, until the second end of the routing object of the next hop searched for is the same as the second end of the SNC, so that the segment routing information of the SNC may be obtained, and then, the iteration factor is updated (e.g., subtracting 1 from the iteration factor) and the above operation is repeatedly performed until the segment routing information of all the SNCs in the transmission network is determined.
Further, in another embodiment of the present application, after determining the segment routing information of all SNCs in the transmission network, the method may further include: and storing the segment routing information of all SNCs in the transmission network based on the data link list.
For example, as shown in fig. 3, for each SNC, after determining the segment routing information of the SNC, a preset storage script may be called to store the segment routing information of each SNC, and the specific process may include: generating object data of the SNC based on the routing information of the SNC, generating routing object data of the SNC based on the segment routing information of the SNC, and finally storing the object data of the SNC and the routing object data in a layering manner and establishing a bearing relation. The object data of the SNC may include, for example, source identification information, destination identification information, layer rate, and the like of the SNC, and the route object information of the SNC may include, for example, source identification information, destination identification information, route type, direction, sequence number, and the like of all route objects passing between the source and the destination of the SNC.
Fig. 4 shows a data link table structure obtained by storing segment routing information of all SNCs in a transmission network based on the data link table. Wherein, snc represents object data of the subnet connection SNC; sncxute denotes the route object data of the subnet connection SNC; link represents the routing Link data in SNC; cross connect represents cross-connect data in SNC.
It can be understood that by storing the segment route information of all SNCs in the transmission network by adopting the data linked list, the end-to-end flow direction of the service signals in each SNC can be intuitively reflected, so that the operation and maintenance personnel can more quickly and accurately perform fault location and network cutting on the transmission network, the storage space can be saved, and the modification is convenient.
In the method for acquiring the service signal flow of the transmission network provided by the embodiment of the application, the SNC data in each layer of the transmission network can be acquired by analyzing the northbound interface data of the OMC, and the end-to-end service signal flow of each SNC in the transmission network can be further determined based on the SNC data in each layer by a recursion algorithm, so that the hierarchical structure and the end-to-end flow direction of each service signal flow in the transmission network can be obtained, the efficiency and the accuracy of fault location and network cutting of the transmission network can be further improved, and the automatic management of the transmission network is facilitated.
In addition, when determining the end-to-end service signal flow corresponding to each SNC in the transmission network, by traversing all SNCs in the transmission network and searching SNCs in each layer of the transmission network for each traversed SNC according to the sequence from the client layer to the service layer, determining the segment route information between the source end and the sink end of the SNC based on the route information of the SNC and the route information of the SNC in the loaded service layer, and finally determining the end-to-end service signal flow corresponding to the SNC according to the segment route information of the SNC, the method of scanning and analyzing the transmission network layer by layer according to the sequence from the client layer to the service layer to find the segment route information of each SNC can avoid error connection data or redundant data generated in the process of analyzing the end-to-end service signal flow of each SNC, and the end-to-end service signal flow obtained based on the method can clearly and intuitively reflect the end-to-end service signal flow in each SNC, thereby further improving the efficiency and accuracy of fault location and network cutting of the OTN network.
In another embodiment of the present application, considering that there may be discrete cross-connections in the SNCs, which are typically connected to network transmission devices, in order to further refine the end-to-end traffic signal flow in the transmission network, the method described in the above embodiment may further comprise, after determining the segment routing information between the source end and the sink end of all the SNCs of the transmission network: detecting whether unused cross connection exists on each SNC of the transmission network, if so, indicating that the service signal flow of the SNC is incomplete, and further for the SNC with the unused cross connection, determining the connection relation between the source end and the destination end of the unused cross connection and the network transmission equipment based on the layer rate of the unused cross connection.
For example, as shown in fig. 3, after traversing all SNCs of the transmission network, it may be detected whether an unused cross-connect exists on each SNC of the transmission network, if an unused cross-connect exists on a certain SNC, a network transmission device matched with a source end and a destination end of the cross-connect may be determined based on a layer rate of the unused cross-connect on the SNC, and a connection relationship between the source end and the destination end of the cross-connect and the matched network transmission device may be respectively established, and a preset storage script may be called to store the storage relationship.
Referring to fig. 5, fig. 5 is a schematic structural diagram illustrating an apparatus 500 for acquiring a transport network traffic signal flow according to an exemplary embodiment. As shown in fig. 5, the apparatus 500 includes:
a first obtaining unit 501, configured to obtain northbound interface data of an operation maintenance center OMC;
a second obtaining unit 502, configured to obtain, based on the northbound interface data, subnetwork connection SNC data in each level of the transmission network, where the SNC data includes routing information of an SNC in a corresponding level and a bearing relationship with other levels;
the traffic signal flow determining unit 503 is configured to determine, by using a recursive algorithm, an end-to-end traffic signal flow corresponding to each SNC in the transport network based on the routing information of the SNC in each level and the bearer relationship with other levels.
Optionally, the service signal flow determining unit 503 is specifically configured to:
traversing all SNCs of the transport network;
each time traversing to an SNC, searching SNCs in all layers of the transmission network according to the sequence from a client layer to a service layer, and determining the segment route information between a source end and a destination end of the SNC based on the route information of the SNC and the route information of the SNC in the service layer carried by the SNC;
and determining the end-to-end service signal flow corresponding to the SNC according to the segment routing information of the SNC.
Optionally, the routing information includes source end identification information, destination end identification information and a routing type;
the traffic signal flow determining unit 503 determines segment routing information between source and sink of each SNC by:
each time traversing to an SNC, searching each layer of the transmission network by taking the first end of the SNC as a starting point according to the sequence from a client layer to a service layer, and searching a routing object of the next hop based on the identification information of the first end of the SNC and the routing type;
if the second end of the next-hop routing object is different from the second end of the SNC, updating the starting point based on the second end of the next-hop routing object, and repeatedly executing the operation of searching the next-hop routing object until the second end of the searched next-hop routing object is the same as the second end of the SNC;
determining segment route information between a source end and a destination end of the SNC based on the searched route object;
the first end is a source end, and the second end is a sink end; or the first end is a host end, and the second end is a source end.
Optionally, as shown in fig. 6, the apparatus 500 further includes:
and the storage unit 504 is configured to store the segment routing information of all SNCs in the transport network based on the data link list.
Optionally, as shown in fig. 6, the apparatus 500 further includes:
a detecting unit 505, configured to detect whether unused cross connections exist on each SNC of the transmission network after the service signal flow determining unit determines segment routing information between source ends and destination ends of all SNCs of the transmission network;
a connection unit 506, configured to determine, for an SNC with an unused cross-connect, a connection relationship between a source end and a destination end of the unused cross-connect and a network transmission device, respectively, based on a layer rate of the unused cross-connect.
The specific manner in which the individual units perform the operations in relation to the apparatus of the above embodiments has been described in detail in relation to the embodiments of the method and will not be described in detail here.
Fig. 7 is a block diagram of an electronic device 700, according to an example embodiment. For example, the electronic device 700 may be provided as a server. Referring to fig. 7, the electronic device 700 includes a processor 722, which may be one or more in number, and a memory 732 for storing computer programs executable by the processor 722. The computer program stored in memory 732 may include one or more modules each corresponding to a set of instructions. Further, the processor 722 may be configured to execute the computer program to perform the method of acquiring transport network traffic signal streams described above.
In addition, the electronic device 700 can further include a power component 726 and a communication component 750, the power component 726 can be configured to perform power management of the electronic device 700, and the communication component 750 can be configured to enable communication of the electronic device 700, e.g., wired or wireless communication. In addition, the electronic device 700 may also include an input/output (I/O) interface 758. The electronic device 700 may operate based on an operating system stored in memory 732, such as Windows Server, mac OS XTM, unixTM, linuxTM, and the like.
In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the method of acquiring a transport network traffic signal stream described above. For example, the computer readable storage medium may be the memory 732 described above including program instructions executable by the processor 722 of the electronic device 700 to perform the method of acquiring a transport network traffic signal stream described above.
Of course, other implementations, such as a logic device or a combination of hardware and software, are not excluded from the electronic device of the present application, that is, the execution subject of the following processing flows is not limited to each logic unit, but may be hardware or a logic device.
The embodiments of the present application also provide a computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment of fig. 2, and in particular to perform the operations of:
acquiring north interface data of an operation maintenance center OMC;
acquiring subnet connection SNC data in each level of a transmission network based on the northbound interface data, wherein the SNC data comprises routing information of SNCs in corresponding levels and bearing relations between the SNCs and other levels;
and determining the end-to-end service signal flow corresponding to each SNC in the transmission network based on the routing information of the SNC in each level and the bearing relation between the SNC and other levels through a recursion algorithm.
In summary, the foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
The system, apparatus, module or unit set forth in the above embodiments may be implemented in particular by a computer chip or entity, or by a product having a certain function. One typical implementation is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
Claims (8)
1. A method for acquiring a traffic signal stream of a transport network, comprising:
acquiring north interface data of an operation maintenance center OMC;
acquiring subnet connection SNC data in each level of a transmission network based on the northbound interface data, wherein the SNC data comprises routing information of SNCs in corresponding levels and bearing relations between the SNCs and other levels;
determining end-to-end service signal flows corresponding to SNCs in the transmission network based on the routing information of the SNCs in each layer and the bearing relation between the SNCs and other layers through a recursion algorithm;
the determining, by a recursive algorithm, an end-to-end service signal flow corresponding to each SNC in the transport network based on routing information of the SNC in each level and a bearing relation with other levels, includes:
traversing all SNCs of the transport network;
each time traversing to an SNC, searching SNCs in all layers of the transmission network according to the sequence from a client layer to a service layer, and determining the segment route information between a source end and a destination end of the SNC based on the route information of the SNC and the route information of the SNC in the service layer carried by the SNC;
and determining the end-to-end service signal flow corresponding to the SNC according to the segment routing information of the SNC.
2. The method of claim 1, wherein the routing information includes source identification information, sink identification information, and a routing type;
each time traversing to an SNC, searching each layer of the transmission network according to the sequence from a client layer to a service layer, determining the segment routing information between the source end and the destination end of the SNC based on the routing information of the SNC and the routing information of the SNC in the service layer, wherein the segment routing information comprises the following steps:
each time traversing to an SNC, searching each layer of the transmission network by taking the first end of the SNC as a starting point according to the sequence from a client layer to a service layer, and searching a routing object of the next hop based on the identification information of the first end of the SNC and the routing type;
if the second end of the next-hop routing object is different from the second end of the SNC, updating the starting point based on the second end of the next-hop routing object, and repeatedly executing the operation of searching the next-hop routing object until the second end of the searched next-hop routing object is the same as the second end of the SNC;
determining segment route information between a source end and a destination end of the SNC based on the searched route object;
the first end is a source end, and the second end is a sink end; or the first end is a host end, and the second end is a source end.
3. The method according to claim 1, wherein the method further comprises:
and storing the segment route information of all SNCs in the transmission network based on a data linked list.
4. The method of claim 1, after determining segment routing information between source to sink for all SNCs of the transport network, the method further comprising:
detecting whether unused cross-connections exist on each SNC of the transport network;
for SNCs with unused cross-connections, determining connection relations between a source end and a destination end of the unused cross-connections and network transmission equipment respectively based on layer rates of the unused cross-connections.
5. An apparatus for acquiring a traffic signal stream of a transport network, comprising:
the first acquisition unit is used for acquiring the northbound interface data of the operation maintenance center OMC;
the second acquisition unit is used for acquiring the subnet connection SNC data in each level of the transmission network based on the northbound interface data, wherein the SNC data comprises the route information of the SNC in the corresponding level and the bearing relation between the SNC and other levels;
the service signal flow determining unit is used for determining end-to-end service signal flows corresponding to SNCs in the transmission network based on the routing information of the SNCs in each level and the bearing relation between the SNCs and other levels through a recursion algorithm;
the service signal flow determining unit is specifically configured to: traversing all SNCs of the transport network; each time traversing to an SNC, searching SNCs in all layers of the transmission network according to the sequence from a client layer to a service layer, and determining the segment route information between a source end and a destination end of the SNC based on the route information of the SNC and the route information of the SNC in the service layer carried by the SNC; and determining the end-to-end service signal flow corresponding to the SNC according to the segment routing information of the SNC.
6. The apparatus of claim 5, wherein the routing information comprises source identification information, sink identification information, and a routing type;
the service signal flow determining unit determines segment routing information between source end and destination end of each SNC by:
each time traversing to an SNC, searching each layer of the transmission network by taking the first end of the SNC as a starting point according to the sequence from a client layer to a service layer, and searching a routing object of the next hop based on the identification information of the first end of the SNC and the routing type;
if the second end of the next-hop routing object is different from the second end of the SNC, updating the starting point based on the second end of the next-hop routing object, and repeatedly executing the operation of searching the next-hop routing object until the second end of the searched next-hop routing object is the same as the second end of the SNC;
determining segment route information between a source end and a destination end of the SNC based on the searched route object;
the first end is a source end, and the second end is a sink end; or the first end is a host end, and the second end is a source end.
7. The apparatus of claim 5, wherein the apparatus further comprises:
and the storage unit is used for storing the segment route information of all SNCs in the transmission network based on the data linked list.
8. An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement the method of acquiring a transport network traffic signal stream as claimed in any one of claims 1 to 4.
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