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WO2016206470A1 - Procédé de commande de ressources de réseau optique commuté automatiquement, appareil et support d'informations lisible par ordinateur - Google Patents

Procédé de commande de ressources de réseau optique commuté automatiquement, appareil et support d'informations lisible par ordinateur Download PDF

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Publication number
WO2016206470A1
WO2016206470A1 PCT/CN2016/080411 CN2016080411W WO2016206470A1 WO 2016206470 A1 WO2016206470 A1 WO 2016206470A1 CN 2016080411 W CN2016080411 W CN 2016080411W WO 2016206470 A1 WO2016206470 A1 WO 2016206470A1
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Prior art keywords
service
resource
resource set
minimum
resources
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PCT/CN2016/080411
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English (en)
Chinese (zh)
Inventor
石丽丽
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/34—Signalling channels for network management communication
    • H04L41/344—Out-of-band transfers

Definitions

  • the present application relates to, but is not limited to, the field of optical communications, and in particular, to an Automatically Switched Optical Network (ASON) resource control method, apparatus, and computer readable storage medium.
  • ASON Automatically Switched Optical Network
  • ASON Automatically Switched Optical Network
  • the basic idea of ASON is to introduce a control plane into the optical transport network to realize the on-demand allocation of network resources to realize the intelligentization of the optical network.
  • the ASON network is divided into three separate layers: the transport plane, the control plane, and the management plane.
  • the service is also divided into three types: permanent connection PC, exchange connection SC, and soft permanent connection SPC.
  • the PC service is initiated and maintained by the management plane;
  • the SPC service is initiated by the management plane, but is established and scheduled by the control plane;
  • the SC service is automatically initiated by the network client, and the control plane is established and scheduled.
  • the embodiment of the invention provides a method, a device and a computer readable storage medium for automatically switching optical network resources, and solves the problem of how to lock resources occupied by services in an automatic switched optical network to avoid resource conflicts.
  • An automatic exchange optical network resource control method includes:
  • the target resources required to create the service are obtained from the currently available available resources;
  • the minimum critical resource set is locked during the running of the business.
  • determining, from the target resource, a minimum key resource set that can lock the target resource includes:
  • determining, from the target resource, the minimum key resource set that can lock the target resource further includes: when the service is a high-order optical channel data layer service, determining that the minimum critical resource set is the routing path Source port, sink port, and high-order time slot;
  • the service is a low-order optical channel data layer service, determining that the minimum critical resource set is a source port, a sink port, and an occupied slot sequence bit string of the routing path;
  • the source port, the sink port, and all wavelengths of the routing path, and the source port, the sink port, and the wavelength used by the service between the adjacent two layers of services are locked.
  • the method further includes:
  • locking the minimum critical resource set includes:
  • the proxy module locks the minimum critical resource set according to a preset principle.
  • the preset principle is:
  • the method further includes: when the service is a persistent connection service created by the management plane, the proxy module locks the minimum critical resource set, and sends a lock success notification to the management plane, and locks Information is sent to the control plane;
  • the agent module locks the minimum critical resource set, sends a lock success notification to the control plane, and sends the lock information to the management. flat.
  • the method further includes: after the management plane and the control plane receive the lock success notification or the lock information, update the resources in the corresponding minimum key resource set to the own resource lock table;
  • the current remaining available resources are determined according to the own resource lock table.
  • An automatic switching optical network resource control device includes:
  • a resource obtaining module configured to acquire, when creating a service, a target resource required to create the service from the currently available available resources
  • a minimum critical resource set determining module configured to determine, from the target resources, a minimum key resource set capable of locking the target resource
  • a locking module configured to lock the minimum set of critical resources during the running of the business.
  • the minimum critical resource set determining module determines, from the target resources, a minimum key resource set that can lock the target resource, including:
  • determining, by the minimum critical resource set determining module, the minimum key resource set that can lock the target resource from the target resource further comprising: when the service is a high-order optical channel data layer service, determining the minimum critical resource.
  • the set is a source port, a sink port, and a high-order time slot of the routing path;
  • the service is a low-order optical channel data layer service, determining that the minimum critical resource set is a source port, a sink port, and an occupied slot sequence bit string of the routing path;
  • the source port, the sink port, and all wavelengths of the routing path, and the source port, the sink port, and the wavelength used by the service between the adjacent two layers of services are locked.
  • the apparatus further includes: a determining module, configured to: determine, before the minimum critical resource set determining module determines, from the target resource, a minimum key resource set that can lock the target resource, whether the service is High-order optical channel data layer service, low-order optical channel data layer service, or optical channel layer service, if the service is not any one of a high-order optical channel data layer service, a low-order optical channel data layer service, and an optical channel layer service Then, it is determined that the service does not need to be resource locked.
  • a determining module configured to: determine, before the minimum critical resource set determining module determines, from the target resource, a minimum key resource set that can lock the target resource, whether the service is High-order optical channel data layer service, low-order optical channel data layer service, or optical channel layer service, if the service is not any one of a high-order optical channel data layer service, a low-order optical channel data layer service, and an optical channel layer service Then, it is determined that the service does not need to be resource locked.
  • the locking module is a proxy module of the optical transport network
  • the locking of the minimum critical resource set by the proxy module of the optical transport network includes: locking the minimum critical resource set according to a preset principle
  • the preset principle is:
  • the proxy module of the optical transport network is further configured to: when the service is created for the management plane When the service is permanently connected, the minimum critical resource set is locked, and a lock success notification is sent to the management plane, and the lock information is sent to the control plane.
  • the minimum critical resource set is locked, and a lock success notification is sent to the control plane, and the lock information is sent to the management plane.
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the automatic switched optical network resource control method.
  • the target resource required for creating the service is obtained from the currently available available resources; and then the minimum critical resource capable of locking the target resource is determined from the target resource.
  • Set that is, as long as the minimum critical resource set is locked, the entire target resource can be locked to avoid other services; therefore, when the business is running, locking the minimum critical resource set can avoid resource conflicts.
  • the embodiment of the invention not only locks the resources occupied by the service, but also locks the smallest key resource set among all the resources occupied by the service, and can greatly reduce the amount of interaction data and improve the number of interactions while ensuring no conflicts. Processing efficiency and resource utilization.
  • FIG. 1 is a schematic flowchart of a resource control process of an automatically switched optical network according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram of an optical channel layer service path according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of an apparatus for automatically switching optical network resources according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic diagram of a flow of automatically switching optical network resource control when establishing a PC service according to Embodiment 3 of the present invention
  • FIG. 5 is a schematic diagram of a flow of automatically switching optical network resource control when establishing an SPC service according to Embodiment 3 of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the OTN automatic switching optical network resource control method provided in this embodiment includes steps S101 to S103:
  • S102 Determine, from the target resource, a minimum key resource set capable of locking the target resource; where the minimum key resource set refers to a resource set that can lock the entire target resource by locking the minimum critical resource set;
  • the service created in the foregoing step S101 can create a permanent connection service for the management plane, or the control plane can create a soft permanent connection service or an exchange connection service.
  • the management plane and the control plane in this embodiment both have a resource lock table, and the resource lock table is in the resource lock table. All the resource information that is currently occupied is stored.
  • the management plane and the control plane create a service, the current remaining resources are determined according to the resource lock table of the user, and the resources that are currently occupied by the currently created service are calculated among the available resources. .
  • determining a minimum key resource set that can lock the entire target resource from the target resources includes:
  • the minimum critical resource set is determined by using a fixed connection relationship of the light according to the routing path corresponding to the target resource occupied by the service and the rate of the layer to which the service belongs;
  • the service is a high-order optical channel data (ODUk) layer service (that is, the layer rate is a high-order optical channel data layer), determining that the minimum critical resource set is the source port, the sink port, and the high-order time slot of the routing path, and the time is high.
  • the time slot can be represented by a special value, such as a bit string representing the sequence of occupied slots. Department setting 0;
  • the service is a low-order optical channel data (ODUk) layer service (that is, the layer rate is a low-order optical channel data layer), determining that the minimum critical resource set is the source port, the sink port, and the occupied slot sequence bit of the routing path string;
  • ODUk optical channel data
  • the source port, the sink port, and all wavelengths of the routing path are locked (may also be identified by a special value, such as 4 bytes. All F, not necessarily all wavelengths), and the source port, sink port, and wavelength used by the service to connect CC between adjacent two-layer services.
  • OCH optical channel
  • the path of the OCH service includes the source and sink CCs.
  • the locked resources should include the port 4 and the wavelength used by the service, the port 8 and the wavelength used by the service, the port 12, and the service. Wavelength, port 17, and the wavelength used by the service.
  • the method further includes:
  • Step S102 performs a subsequent determination process of the locked resource.
  • the locking of the minimum critical resource set is preferably performed by using a proxy module (Agent module) independent of the gateway and the ASON in the OTN, and the second judgment may be adopted to avoid resource conflict, and the minimum critical resource set is locked.
  • a proxy module Agent module
  • the proxy module of the optical transport network locks the minimum critical resource set according to a preset principle
  • the resource lock in the smallest critical resource set fails.
  • the agent module of the optical transport network locks the minimum key resource set and sends a lock success notification to the management plane, and sends the lock information to the control plane.
  • the management plane receives the lock success notification, and updates the resources in the corresponding minimum key resource set to its own resource lock table; and after receiving the lock information, the control plane also updates the resources of the corresponding minimum key resource set to its own real-time.
  • the resource is locked in the table.
  • the proxy module of the optical transport network locks the minimum critical resource set, sends a lock success notification to the control plane, and sends the lock information to the management. flat.
  • the control plane receives the lock success notification, and updates the resources in the corresponding minimum key resource set to its own resource lock table; and after receiving the lock information, the management plane also updates the resources of the corresponding minimum key resource set to its own real-time.
  • the resource is locked in the table.
  • control plane or the management plane can further deliver the configuration required for the provisioning service to the proxy module of the optical transport network, and send it to the transport plane through the adaptation of the proxy module of the optical transport network, and the service is successfully established. If the control plane establishes a soft permanent connection service, the established service information and the route are also reported to the network management system through the proxy module of the optical transport network.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • this embodiment provides an automatic switching optical network resource control apparatus.
  • an automatic switching optical network resource control apparatus include:
  • the resource obtaining module 31 is configured to obtain, when creating a service, a target resource required for creating a service from the currently available available resources;
  • the minimum critical resource set determining module 32 is configured to determine a minimum key resource set capable of locking the target resource from the target resource; the minimum key resource set herein means that the entire target can be locked by locking the minimum critical resource set Resource-locked resource collection;
  • the locking module 33 is configured to lock the minimum critical resource set during business operation.
  • the other services are used to ensure that the resource conflicts are not generated.
  • only the smallest key resource set of all the resources is occupied by the service, so that the amount of interaction data can be greatly reduced, and the processing efficiency and resource utilization are improved.
  • the resource acquisition module 31 and the minimum key resource set determination module 32 may be set in both the management plane and the control plane; when the management plane creates a permanent connection service, the resource acquisition module 31 of the management plane obtains from the currently available available resources. The target resource required for the business is created, and the minimum critical resource set determining module 32 determines from the target resource the smallest set of key resources that can lock the target resource.
  • the resource acquisition module 31 of the control plane acquires the target resource required for creating the service from the currently available available resources, and the minimum critical resource set determination module 32 determines the energy from the target resource.
  • the management plane and the control plane in this embodiment both have a resource lock table, and the resource lock table stores all the resource information that is currently occupied.
  • the resource acquisition module 31 can be based on each plane.
  • the resource lock table determines the currently available available resources, and then calculates the resources that the currently created service needs to occupy in the available resources.
  • the minimum critical resource set determining module 32 determines, from the target resources, a minimum key resource set that can lock the target resource, including:
  • the minimum critical resource set determining module determines, from the target resources, a minimum key resource set that can lock the target resource, further includes:
  • the service is a high-order optical channel data (ODUk) layer service (that is, the layer rate is a high-order optical channel data layer), determining that the minimum critical resource set is the source port, the sink port, and the high-order time slot of the routing path, and the time is high.
  • the time slot can be represented by a special value, for example, the bit string indicating the occupied slot sequence is all set to 0;
  • the service is a low-order optical channel data (ODUk) layer service (that is, the layer rate is a low-order optical channel data layer), determining that the minimum critical resource set is the source port, the sink port, and the occupied slot sequence bit of the routing path string;
  • ODUk optical channel data
  • the service is an optical channel (OCH) layer service (that is, the layer rate is an optical channel layer)
  • OCH optical channel
  • the source port, the sink port, and all wavelengths of the routing path are locked (may also be identified by a special value, such as 4 bytes. All F, not necessarily all wavelengths), and the source port, sink port, and wavelength used by the service to connect CC between adjacent two-layer services.
  • the automatic switched optical network resource control apparatus in this embodiment further includes a determining module 34, configured to determine, before the minimum critical resource set determining module 32 determines the minimum critical resource set that can lock the target resource from the target resource. Whether the created service is a high-order optical channel data layer service, a low-order optical channel data layer service, or an optical channel layer service, if the service is not in a high-order optical channel data layer service, a low-order optical channel data layer service, or an optical channel layer service. For any of the services, it is determined that the service does not need to be locked in the resource, and the configuration required for the subsequent delivery of the service is directly performed to the transmission plane.
  • the locking module 33 is executed by an agent module (Agent module) independent of the gateway and the ASON in the OTN, and may adopt a second judgment to avoid resource conflicts.
  • Agent module Agent module
  • the proxy module of the optical transport network locks the minimum critical resource set, including: according to a preset original Then lock the minimum key resource set.
  • the agent module of the optical transport network locks the minimum critical resource set, and then sends a lock success notification to the management plane, and sends the lock information to the control plane;
  • the management plane receives the lock success notification, and updates the resources in the corresponding minimum key resource set to its own resource lock table; and after receiving the lock information, the control plane also updates the resources of the corresponding minimum key resource set to its own real-time.
  • the resource is locked in the table.
  • the agent module of the optical transport network locks the minimum critical resource set and sends a lock success notification to the control plane, and sends the lock information to the management plane.
  • the control plane receives the lock success notification, and updates the resources in the corresponding minimum key resource set to its own resource lock table; and after receiving the lock information, the management plane also updates the resources of the corresponding minimum key resource set to its own real-time.
  • the resource is locked in the table.
  • control plane or the management plane can further deliver the configuration required for the provisioning service to the proxy module, and send it to the transport plane through the adaptation of the proxy module, and the service is successfully established. If the control plane establishes a soft permanent connection service, the established service information and the route are also reported to the network management system through the proxy module.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • each of the management plane and the control plane also stores a resource lock table.
  • Each time a service is built the resource is first locked according to its own resource, and the available resources are used to search for the path. This is the first time to determine whether the resource conflicts, and then to the Agent module.
  • the resources required for applying for this business path are arbitrated by the Agent module. This is the second time to judge whether the resources are in conflict or not, and the double insurance is judged twice, which increases the reliability of the system.
  • the Agent module arbitrates to determine whether the resources in the minimum critical resource set are occupied. If yes, go to step S407; otherwise, go to step S405;
  • the management plane applies for locking, and the Agent module determines whether the resource is locked by the control plane;
  • the Agent module stores the resource and the lock source in the minimum key resource set in the resource lock table (the management plane applies for locking, and the lock source is the management plane), notifies the control plane of the lock information, and returns the management plane that requests the resource lock to succeed. Notice;
  • the setup request is initiated from the management plane, and is forwarded to the control plane by the agent module, and the control plane queries the resource lock table saved by itself, and only uses unoccupied (for example, resources that are not locked by the management plane).
  • the resource search service path determines a target resource corresponding to the service;
  • the Agent module arbitrates, determines whether the resources in the minimum key resource set have been occupied, if yes, go to step S508; otherwise, go to step S505;
  • the control plane applies for locking, and the Agent module determines whether the resource is locked by the management plane;
  • the Agent module stores the resource and the lock source in the minimum key resource set in the resource lock table (the control plane applies for locking, and the lock source is the control plane), notifies the management plane of the lock information, and returns the control plane that requests the resource lock to succeed. Notice;
  • an OTN ASON-based resource dynamic locking method is implemented, which solves the trouble of manually dividing resources when the user starts the deployment; and avoids resource conflicts by establishing the service plane self-judging and sending the agent to the arbitration again.
  • the occurrence of the system improves the reliability of the system; at the same time, it only locks the minimum critical resource set of the service, streamlines the data model, reduces the amount of data exchanged between modules, improves efficiency and response speed, and reduces the probability of failure.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the invention not only locks the resources occupied by the service, but also locks the smallest key resource set among all the resources occupied by the service, and can greatly reduce the amount of interaction data and improve the number of interactions while ensuring no conflicts. Processing efficiency and resource utilization.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de commande de ressources de réseau optique commuté automatiquement (ASON), un appareil et un support d'informations lisible par ordinateur. Le procédé consiste : à obtenir les ressources cibles requises pour établir un service à partir de ressources disponibles restantes courantes lors de l'établissement du service dans un ASON ; puis à déterminer le plus petit ensemble de ressources essentielles pour verrouiller les ressources cibles à partir des ressources cibles ; c'est-à-dire, le verrouillage de l'ensemble de ressources essentielles le plus petit conduisant au verrouillage des ressources cibles entières, évitant l'occupation d'autres services. Par conséquent, durant l'opération de service, un conflit de ressources peut être évité par le verrouillage du plus petit ensemble de ressources essentielles.
PCT/CN2016/080411 2015-06-26 2016-04-27 Procédé de commande de ressources de réseau optique commuté automatiquement, appareil et support d'informations lisible par ordinateur Ceased WO2016206470A1 (fr)

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CN201510366429.7A CN106330503A (zh) 2015-06-26 2015-06-26 自动交换光网络资源控制方法及装置

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