CN108092733B

CN108092733B - Determining method of path that IP network is merged with optical transport network, apparatus and system

Info

Publication number: CN108092733B
Application number: CN201611043100.8A
Authority: CN
Inventors: 卢刚
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-11-21
Filing date: 2016-11-21
Publication date: 2019-06-18
Anticipated expiration: 2036-11-21
Also published as: CN108092733A; WO2018090716A1

Abstract

Determining method of path, the apparatus and system merged the present invention provides a kind of IP network with optical transport network.Wherein, this method comprises: being located at the virtual link for meeting business demand in IP network domain for transmission services distribution receiving across when the transmission services request in optical-fiber network domain；Determine in the service layer path that pre-saves with virtual link matched destination service layer path, wherein service layer path is located in optical-fiber network domain；Send the controller for activating the activation request in destination service layer path to optical-fiber network domain.The present invention solves in the related technology, and photosphere provides the lower technical problem of efficiency in required service layer path for IP layers.

Description

Determining method of path that IP network is merged with optical transport network, apparatus and system

Technical field

The present invention relates to the communications fields, determine in particular to the path that a kind of IP network is merged with optical transport network Method, apparatus and system.

Background technique

Currently, the main line basis bearer network of operator be generally divided into two layers come carry out respectively construction and O&M, upper layer be IP/MPLS (Multi-Protocol Label Switching, the multiprotocol label switching) bearer network being made of router, under Layer is successively by DWDM (Dense Wavelength Division Multiplexing, intensive light wave multiplexing), optical transfer network The optical transport network (abbreviation photosphere) of compositions such as (OTN, Optical Transport Network).IP layers propose respectively to photosphere Optical link connection requirement between node, photosphere are responsible for the optical physics link of IP layers of offer static configuration, solve large capacity, it is long away from Convergence dispatching requirement from transmission and different bandwidth circuit；The IP layers of physical topology and resource information for not perceiving photosphere, do not know yet Network protection information provided by road photosphere can only carry out routing and flow optimization according to IP level inherent logic topology, satisfy the need By lower with the optimization efficiency of flow；Optical-fiber network does not know about the demands such as IP layers of Dynamic link library and changes in flow rate, therefore cannot be quick More economical through service layer's link is provided for it, to solve this problem, it is necessary to realize network interworking and the association of IP and light With control.

For in the related technology, photosphere provides the lower technical problem of efficiency in required service layer path, mesh for IP layers It is preceding not yet to put forward effective solutions.

Summary of the invention

A kind of merged the embodiment of the invention provides IP network with optical transport network determining method of path, device and it is System, at least to solve in the related technology, photosphere provides the lower technical problem of efficiency in required service layer path for IP layers.

According to an aspect of an embodiment of the present invention, it is determining to provide a kind of path that IP network is merged with optical transport network Method, this method comprises: being located at IP network receiving across when the transmission services request in optical-fiber network domain for transmission services distribution Meet the virtual link of business demand in domain；Determine in the service layer path that pre-saves with the matched destination service of virtual link Layer path, wherein service layer path is located in optical-fiber network domain；It sends for activating the activation in destination service layer path to request to light The controller of network domains.

Optionally it is determined that including: with virtual link matched destination service layer path in the service layer path pre-saved It obtains in advance as one or more service layer path of virtual link distribution；By preset algorithm from one or more service layer road It is selected in diameter and virtual link matched destination service layer path.

Optionally, being retrieved as virtual link pre-assigned one or more service layer path includes: acquisition virtual link Link identification；In to acquisite approachs index list one or more service layer path corresponding with link identification and/or one or The path indexing in a plurality of service layer path.

Optionally, sending for activating controller of the activation request in destination service layer path to optical-fiber network domain includes: to obtain Take the path indexing in destination service layer path；The activation for sending the path indexing for carrying destination service layer path is requested to light net The controller in network domain.

Optionally, before meeting the virtual link of business demand in IP network domain for transmission services distribution, the party Method further include: the controller of transmitting path distribution request to optical-fiber network domain, wherein path allocation request is virtual chain for requesting Service layer path is distributed on road；Receive the path indexing in one or more service layer path of the controller return in optical-fiber network domain；It protects The corresponding relationship of the path indexing in one or more service layer path and the link identification of virtual link is deposited to path indexing list.

Optionally, corresponding with the link identification of virtual link in the path indexing for saving one or more service layer path After relationship to path indexing list, this method further include: the controller of transmitting path operation requests to optical-fiber network domain；Receive light The operating result that the controller of network domains returns, and path indexing list is updated based on operating result.

Optionally, one or more service layer path is homologous chummage path.

Other side according to an embodiment of the present invention additionally provides a kind of path that IP network is merged with optical transport network Method is determined, this method comprises: being when the controller for receiving IP network domain is the path allocation request that virtual link is sent Virtual link distributes one or more service layer path；The path indexing in one or more service layer path is returned to IP network domain Controller；In the activation request in the request activation destination service layer path that the controller for receiving IP network domain is sent, swash Destination service layer path living, wherein destination service layer path is the controller in IP network domain in one or more service layer path For the service layer path of virtual link distribution.

Optionally, after distributing one or more service layer path for virtual link, this method further include: receiving When the controller in IP network domain is the path operations request that virtual link is sent, execution route operation requests request the road executed Diameter operation；The operating result of return path operation to optical-fiber network domain controller, wherein operating result is for updating optical-fiber network domain Path indexing list, the path in one or more service layer path of promising virtual link distribution is saved in path indexing list Index.

Optionally, it includes: to take in acquisite approachs operation requests that execution route operation requests, which request the path operations executed, The action type of the path operations of band；Execute path operations corresponding with action type.

Optionally, executing path operations corresponding with action type includes: in the case where action type is newly-increased, for void Quasi- link increases service layer path newly；In the case where action type is to delete, the service layer path for virtual link distribution is deleted； In the case where action type is Bandwidth adjustment, it is adjusted to the bandwidth in the service layer path of virtual link distribution；In action type In the case where inquiry, the status information and attribute information in query service layer path；In the case where action type is to refresh, brush The new service layer path for virtual link distribution.

Optionally, for virtual link increase newly service layer path include: according to path operations request instruction path starting point and Path termination distributes service layer path for virtual link；Save the path indexing in the service layer path of distribution；For the service of distribution Layer path allocation Internet resources.

Optionally, it includes: to be deleted in acquisite approachs operation requests for deleting the service layer path distributed for virtual link The path indexing in service layer path；It deletes service layer path corresponding with the path indexing got and is deleted what is locally saved Except the path indexing in service layer path；It is released to be deleted the Internet resources of service layer's path allocation.

Optionally, the bandwidth for being adjusted to the service layer path of virtual link distribution includes: by the current band in service layer path Width adjusts the bandwidth indicated into path operations request.

Optionally, refresh and include: to redefine one and be virtual link point for the service layer path of virtual link distribution The service layer path matched has the service layer path of same paths starting point and path termination；Use the service layer path redefined It is replaced by the service layer path of virtual link distribution.

Optionally, after executing path operations corresponding with action type, this method further include: on any service layer road When diameter is unavailable, the path starting point and path termination in any service layer path are obtained；It is risen according to the path in any service layer path Point and path termination redistribute service layer path；It, will be any in the successful situation of operation for redistributing service layer path Path indexing of the path indexing in service layer path as the service layer path redistributed；Redistributing service layer path In the case where operation failure, by the controller of any not available information reporting in service layer path to IP network domain.

Optionally, in the one or more service layer path distributed for virtual link, one or more service layer path For homologous chummage path.

Optionally, in the one or more service layer path distributed for virtual link, the protection attribute in service layer path Service layer path for job category and protection type, job category is currently used service layer path, protects the clothes of type Business layer path is not currently used service layer path, wherein the service layer path of job category and the service layer of protection type It is separated between path by SRLG.

Optionally, in the one or more service layer path distributed for virtual link, service layer path includes ether layer At least one of path, ODUk layers of path and Layer Path.

It is true to provide a kind of path that IP network is merged with optical transport network for other side according to an embodiment of the present invention Determine device, which includes: the first allocation unit, for receive across optical-fiber network domain transmission services request when, for pass Defeated traffic assignments are located at the virtual link for meeting business demand in IP network domain；Determination unit, for determining the clothes pre-saved It is engaged in layer path and virtual link matched destination service layer path, wherein service layer path is located in optical-fiber network domain；First hair Unit is sent, for sending the controller for activating the activation request in destination service layer path to optical-fiber network domain.

Optionally it is determined that unit includes: the first acquisition module, it is in advance one or more of virtual link distribution for obtaining Service layer path；Module is chosen, for selecting and virtual chain from one or more service layer path by preset algorithm Road matched destination service floor path.

Optionally, the first acquisition module includes: the first acquisition submodule, for obtaining the link identification of virtual link；The Two acquisition submodules, for one or more service layer path corresponding with link identification in acquisite approachs index list and/or The path indexing in one or more service layer path.

Optionally, the first transmission unit includes: the second acquisition module, for obtaining the path rope in destination service layer path Draw；Sending module, for sending control of the activation request for carrying the path indexing in destination service layer path to optical-fiber network domain Device.

Optionally, the device further include: the second transmission unit, for being located in IP network domain completely for transmission services distribution Before the virtual link of sufficient business demand, the controller of transmitting path distribution request to optical-fiber network domain, wherein path allocation request For requesting to be that virtual link distributes service layer path；First receiving unit, what the controller for receiving optical-fiber network domain returned The path indexing in one or more service layer path；Storage unit, for saving the path rope in one or more service layer path Draw and the corresponding relationship of the link identification of virtual link to path indexing list.

Optionally, the device further include: third transmission unit, in the path for saving one or more service layer path After the corresponding relationship to path indexing list of the link identification of index and virtual link, transmitting path operation requests to optical-fiber network The controller in domain；Second receiving unit, the operating result that the controller for receiving optical-fiber network domain returns, and it is based on operating result Update path indexing list.

Other side according to an embodiment of the present invention additionally provides a kind of path that IP network is merged with optical transport network Determining device, the device include: the second allocation unit, for being what virtual link was sent in the controller for receiving IP network domain When path allocation is requested, one or more service layer path is distributed for virtual link；First return unit, for return one or The path indexing in a plurality of service layer path to IP network domain controller；Unit is activated, in the control for receiving IP network domain When the activation request in the request activation destination service layer path that device processed is sent, destination service layer path is activated, wherein destination service Layer path is that the controller in IP network domain in one or more service layer path is the service layer path of virtual link distribution.

Optionally, the device further include: execution unit, for distributing one or more service layer path for virtual link Later, when the controller for receiving IP network domain is the path operations request that virtual link is sent, execution route operation requests Request the path operations executed；Second return unit, for return path operation operating result to optical-fiber network domain control Device, wherein operating result is used to update the path indexing list in optical-fiber network domain, saves promising virtual link in path indexing list The path indexing in one or more service layer path of distribution.

Optionally, execution unit includes: that third obtains module, the path operations for carrying in acquisite approachs operation requests Action type；First execution module, for executing path operations corresponding with action type.

Optionally, the first execution module includes: newly-increased submodule, in the case where action type is newly-increased, being empty Quasi- link increases service layer path newly；Submodule is deleted, for deleting as virtual link point in the case where action type is to delete The service layer path matched；Adjusting submodule, for being adjusted to virtual link distribution in the case where action type is Bandwidth adjustment Service layer path bandwidth；Submodule is inquired, is used in the case where action type is inquiry, the shape in query service layer path State information and attribute information；Refresh submodule, for refreshing as virtual link distribution in the case where action type is to refresh Service layer path.

According to another embodiment of the invention, it is determining to additionally provide a kind of path that IP network is merged with optical transport network Method, this method comprises: second controller of the first controller transmitting path distribution request in IP network domain to optical-fiber network domain；The Two controller response path distribution requests, for the service layer road for being located at optical-fiber network domain positioned at the distribution of the virtual link in IP network domain Diameter；First controller receive second controller return one or more service layer path path indexing, and save one or The corresponding relationship of the link identification of the path indexing and virtual link in a plurality of service layer path.

Optionally, the path indexing in one or more service layer path and the link of virtual link are saved in the first controller After the corresponding relationship of mark, this method further include: asked receiving the path operations that the first controller is virtual link transmission When asking, second controller execution route operation requests request the path operations executed；The operation of first controller RX path Operating result, and according to the path indexing list in operating result update optical-fiber network domain, wherein it is saved in path indexing list promising The path indexing in one or more service layer path of virtual link distribution.

Optionally, it includes: second controller that second controller execution route operation requests, which request the path operations executed, The action type of the path operations carried in acquisite approachs operation requests；Second controller executes path corresponding with action type Operation.

Optionally, it is newly-increased that second controller execution path operations corresponding with action type, which include: in action type, In the case of, second controller is that virtual link increases service layer path newly；In the case where action type is to delete, second controller Delete the service layer path for virtual link distribution；In the case where action type is Bandwidth adjustment, second controller is adjusted to The bandwidth in the service layer path of virtual link distribution；In the case where action type is inquiry, second controller query service layer The status information and attribute information in path；In the case where action type is to refresh, second controller refreshes as virtual link point The service layer path matched.

According to another embodiment of the invention, it is determining to additionally provide a kind of path that IP network is merged with optical transport network System, the system include the second controller positioned at first controller in IP network domain and positioned at optical-fiber network domain, wherein the second control Device processed is used to respond the path allocation request of the first controller transmission, to be located at light net positioned at the distribution of the virtual link in IP network domain The service layer path in network domain；First controller is used to receive the path in one or more service layer path of second controller return Index, and save the corresponding relationship of the path indexing in one or more service layer path and the link identification of virtual link.

Optionally, second controller is also used to receiving the first controller be the path operations request that virtual link is sent When, execution route operation requests request the path operations executed；First controller is also used to the operation knot of RX path operation Fruit, and according to the path indexing list in operating result update optical-fiber network domain, wherein promising virtual chain is saved in path indexing list The path indexing in one or more service layer path of road distribution.

Optionally, second controller includes: the 4th acquisition module, the path behaviour for carrying in acquisite approachs operation requests The action type of work；Second execution module, for executing path operations corresponding with action type.

Optionally, the second execution module is also used to: in the case where action type is newly-increased, for the newly-increased service of virtual link Layer path；In the case where action type is to delete, the service layer path for virtual link distribution is deleted；It is band in action type In the case where width adjustment, it is adjusted to the bandwidth in the service layer path of virtual link distribution；In the case where action type is inquiry, The status information and attribute information in query service layer path；In the case where action type is to refresh, refresh as virtual link point The service layer path matched.

According to another embodiment of the invention, a kind of storage medium is provided, storage medium can be set to store For executing the program code of following steps: receiving across when the transmission services request in optical-fiber network domain, dividing for transmission services It is coordinated in the virtual link for meeting business demand in IP network domain；Determine in the service layer path that pre-saves with virtual link The destination service layer path matched, wherein service layer path is located in optical-fiber network domain；It sends for activating destination service layer path Activation is requested to the controller in optical-fiber network domain.

Optionally, storage medium may be also configured to store the program code for executing following steps: receive When the controller in IP network domain is the path allocation request that virtual link is sent, one or more service layer is distributed for virtual link Path；The path indexing in one or more service layer path is returned to the controller in IP network domain；Receiving IP network domain When the activation request in the request activation destination service layer path that controller is sent, destination service layer path is activated, wherein target clothes Business layer path is that the controller in IP network domain in one or more service layer path is the service layer path of virtual link distribution.

In embodiments of the present invention, it is receiving across when the transmission services request in optical-fiber network domain, is being distributed for transmission services Meet the virtual link of business demand in IP network domain；It determines and is matched in the service layer path pre-saved with virtual link Destination service layer path, service layer path is located in optical-fiber network domain；It sends for activating the activation in destination service layer path to ask It asks to the controller in optical-fiber network domain, by establishing the corresponding relationship of virtual link and service layer path, to solve related skill In art, the efficiency that photosphere provides required service layer path for IP layers is lower, realizes the technical effect improved efficiency.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the schematic diagram of optional terminal according to an embodiment of the present invention；

Fig. 2 is the flow chart in the path of determining optical-fiber network according to an embodiment of the present invention；

Fig. 3 is the process for the determining method of path that a kind of IP network according to an embodiment of the present invention is merged with optical transport network Figure；

Fig. 4 is the stream for the determining method of path that another IP network according to an embodiment of the present invention is merged with optical transport network Cheng Tu；

Fig. 5 is the schematic diagram of optional SDN network framework according to an embodiment of the present invention；

Fig. 6 is the stream for the determining method of path that optional IP network according to an embodiment of the present invention is merged with optical transport network Cheng Tu；

Fig. 7 is the schematic diagram according to an embodiment of the present invention established and mapped between service layer path and virtual link；

Fig. 8 is the schematic diagram according to an embodiment of the present invention for deleting service layer path；

Fig. 9 is the schematic diagram of progress bandwidth dilatation according to an embodiment of the present invention or capacity reducing；

Figure 10 is the schematic diagram according to an embodiment of the present invention for carrying out path recovery；

Figure 11 is showing for the path determining device that a kind of IP network according to an embodiment of the present invention is merged with optical transport network It is intended to；

Figure 12 is the path determining device that another IP network according to an embodiment of the present invention is merged with optical transport network Schematic diagram.

Specific embodiment

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.

Embodiment 1

Embodiment of the method provided by the embodiment of the present application one can be in mobile terminal, terminal or similar fortune It calculates and is executed in device.For running on computer terminals, as shown in Figure 1, terminal may include one or more (processor 101 can include but is not limited to Micro-processor MCV or programmable logic device to (one is only shown in figure) processor 101 The processing unit of part FPGA etc.), memory 103 for storing data and the transmitting device 105 for communication function.This Field those of ordinary skill is appreciated that structure shown in FIG. 1 is only to illustrate, and does not cause to the structure of above-mentioned electronic device It limits.

Memory 103 can be used for storing the software program and module of application software, such as the equipment in the embodiment of the present invention The corresponding program instruction/module of control method, processor 101 by the software program that is stored in memory 103 of operation with And module realizes above-mentioned method thereby executing various function application and data processing.Memory may include that high speed is random Memory may also include nonvolatile memory, such as one or more magnetic storage device, flash memory or other are non-volatile Property solid-state memory.In some instances, memory can further comprise the memory remotely located relative to processor, these Remote memory can pass through network connection to terminal.The example of above-mentioned network includes but is not limited to internet, enterprise Intranet, local area network, mobile radio communication and combinations thereof.

Transmitting device is used to that data to be received or sent via a network.Above-mentioned network specific example may include calculating The wireless network that the communication providers of machine terminal provide.In an example, transmitting device includes a network adapter (Network Interface Controller, NIC), can be connected by base station with other network equipments so as to interconnection Net is communicated.In an example, transmitting device can be radio frequency (Radio Frequency, RF) module, be used to pass through Wireless mode is communicated with internet.

IP and optical-fiber network network interworking can carry out unified route planning and flow collaboration.The route planning of IP network needs to tie The physical topology of light combination network carries out scientific design, and optical-fiber network need to connect according to IP layers of logical connection demand perfect service layer path It connects.How to be dynamically then particularly important for IP layers of calculating photosphere routing.The path calculation method of IP and two layers of light coordination, can Based on GMPLS-UNI (mostly association's label protocol-User Network Interface) agreement, sends and establish from IP network equipment to optical network device The request of User Network Interface, request calculate the path of optical-fiber network.It is specific as shown in Figure 2:

Step S201, first routing device send request message to the first light device；

Step S202, creates two-way optical channel between the first light device and the second light device；

Step S203, the first light device send route messages to the second light device；

Step S204, the second light device send route messages to secondary route equipment；

Step S205, secondary route equipment send first and determine message to the second light device；

Step S206, the second light device send first and determine message to the first light device；

Step S207, the first light device send second and determine message to first routing device, to complete optical-fiber network path It calculates.

Aforesaid way can get through signaling and routing, but there is also following problems: 1) since interface uses GMPLS-UNI Agreement, the interface realize that there are various ways, have manual setting, have using RSVP PATH signaling etc., be not easy to extend, can not Cope with flexible and changeable service layer's path computation policies and business need；2) inefficiency of the path computing of which, needs It first gets through source node to route to proximal end IP layers of equipment, resettles service layer path, then transmitting signaling is to far-end IP layer equipment, so It is further continued for calculating the routing of far-end IP layer equipment to destination node afterwards；3) for some business new at present, such as Bandwidth adjustment branch Holding can be relatively difficult to achieve.

According to embodiments of the present invention, a kind of method of determining method of path that IP network is merged with optical transport network is provided Embodiment, it should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not The sequence being same as herein executes shown or described step.

Fig. 3 is the process for the determining method of path that a kind of IP network according to an embodiment of the present invention is merged with optical transport network Figure, as shown in figure 3, this method comprises the following steps:

Step S301 is receiving across when the transmission services request in optical-fiber network domain, is being located at IP network for transmission services distribution Meet the virtual link of business demand in network domain.

Step S302, determine in the service layer path that pre-saves with virtual link matched destination service layer path, In, service layer path is located in optical-fiber network domain.

Step S303 sends the controller for activating the activation request in destination service layer path to optical-fiber network domain.

Through the foregoing embodiment, it is receiving across when the transmission services request in optical-fiber network domain, is distributing position for transmission services Meet the virtual link of business demand in IP network domain；It determines matched with virtual link in the service layer path pre-saved Destination service layer path, service layer path are located in optical-fiber network domain；It sends for activating the activation in destination service layer path to request To the controller in optical-fiber network domain, by establishing the corresponding relationship of virtual link and service layer path, to solve the relevant technologies In, photosphere provides the lower technical problem of efficiency in required service layer path for IP layers, realizes the technology effect improved efficiency Fruit.

Optionally, the executing subject of above-mentioned steps can be the controller etc. in IP network domain, but not limited to this.

Before meeting the virtual link of business demand in IP network domain for transmission services distribution, such as lower section can be passed through Formula establishes the global mapping relation in two layers of path of photoelectricity, the controller of transmitting path distribution request to optical-fiber network domain, wherein path Distribution request is that virtual link distributes service layer path for requesting；Receive the controller in optical-fiber network domain returns one or more The path indexing in service layer path；Save the path indexing in one or more service layer path and the link identification of virtual link Corresponding relationship is to path indexing list.

It should be noted that one or more above-mentioned service layer path is homologous chummage path；Saving one or more After the corresponding relationship to path indexing list of the link identification of the path indexing and virtual link in service layer path, it can pass to The operation: the controller of transmitting path operation requests to optical-fiber network domain such as it is updated, deletes to the allocated service layer path, Wherein, path operations request operates service layer path for requesting；Receive the operation that the controller in optical-fiber network domain returns As a result, and updating path indexing list based on operating result.

In the above-described embodiments, determine in the service layer path that pre-saves with virtual link matched destination service floor road Diameter includes: to obtain in advance as one or more service layer path of virtual link distribution；By preset algorithm from one or more It is selected in service layer path and virtual link matched destination service layer path.

Specifically, being retrieved as virtual link pre-assigned one or more service layer path includes: acquisition virtual link Link identification；In to acquisite approachs index list one or more service layer path corresponding with link identification and/or one or The path indexing in a plurality of service layer path.

According to embodiments of the present invention, a kind of side of determining method of path that IP network is merged with optical transport network is additionally provided Method embodiment, Fig. 4 are the determining method of path that another IP network according to an embodiment of the present invention is merged with optical transport network Flow chart, as shown in figure 4, this method comprises the following steps:

Step S401, when the controller for receiving IP network domain is the path allocation request that virtual link is sent, for void Quasi- link distributes one or more service layer path；

Step S402 returns to the path indexing in one or more service layer path to the controller in IP network domain；

Step S403, the activation in the request activation destination service layer path that the controller for receiving IP network domain is sent are asked When asking, destination service layer path is activated, wherein destination service layer path is IP network domain in one or more service layer path Controller is the service layer path of virtual link distribution.

It through the foregoing embodiment, is the path allocation request that virtual link is sent in the controller for receiving IP network domain When, one or more service layer path is distributed for virtual link；The path indexing in one or more service layer path is returned to IP The controller of network domains；Activation request in the request activation destination service layer path that the controller for receiving IP network domain is sent When, activate destination service layer path, wherein destination service layer path is the control in IP network domain in one or more service layer path Device processed is the service layer path of virtual link distribution, by establishing the corresponding relationship of virtual link and service layer path, to solve It has determined in the related technology, the efficiency that photosphere provides required service layer path for IP layers is lower, realizes the technology improved efficiency Effect.

Optionally, the executing subject of above-mentioned steps can be the controller etc. in optical-fiber network domain, but not limited to this.

In the one or more service layer path distributed for virtual link, one or more service layer path is homologous same Place path；The protection attribute in service layer path is job category and protection type, and the service layer path of job category is currently to make Service layer path, protecting the service layer path of type is not currently used service layer path, wherein the clothes of job category It is separated between business layer path and the service layer path for protecting type by SRLG；Service layer path include ether layer path, At least one of ODUk layers of path and Layer Path.

It should be noted that SRLG, that is, sharing memory, every service layer's link all can be arranged which it is in In SRLG group (sequence of one group of SRLG ID number).When the link (such as in same root physical light pricker in) in same risk, It will include an identical SRLG ID in the SRLG sequence of its link, that is, there is intersection.SRLG separation is exactly the path established Above the SRLG in the SRLG group of all links (is referred between path) without intersection, therefore, in two paths, a paths Failure will not involve another path.

It is void in the controller for receiving IP network domain after distributing one or more service layer path for virtual link When the path operations request that quasi- link is sent, execution route operation requests request the path operations executed；Return path operation Operating result to optical-fiber network domain controller, wherein operating result is used to update the path indexing list in optical-fiber network domain, path The path indexing in one or more service layer path of promising virtual link distribution is saved in index list.

It includes: to carry in acquisite approachs operation requests that above-mentioned execution route operation requests, which request the path operations executed, Path operations action type；Execute path operations corresponding with action type.

Specifically, executing path operations corresponding with action type includes: in the case where action type is newly-increased, for void Quasi- link increases service layer path newly；In the case where action type is to delete, the service layer path for virtual link distribution is deleted； In the case where action type is Bandwidth adjustment, it is adjusted to the bandwidth in the service layer path of virtual link distribution；In action type In the case where inquiry, the status information and attribute information in query service layer path；In the case where action type is to refresh, brush The new service layer path for virtual link distribution.

Optionally, refresh and include: to redefine one and be virtual link point for the service layer path of virtual link distribution The service layer path matched has the service layer path of same paths starting point and path termination；Use the service layer path redefined It is replaced by the service layer path of virtual link distribution.The optimization in service layer path can select weight according to current network congestion situation A paths are calculated, congestion link is avoided, (path after optimizing at this time is instead of former service layer road to optimize former service layer path Diameter).

After executing path operations corresponding with action type, allocated service layer path can be changed Operation: when any service layer path is unavailable, the path starting point and path termination in any service layer path are obtained；According to any The path starting point and path termination in service layer path redistribute service layer path；The operation for redistributing service layer path at In the case where function, using the path indexing in any service layer path as the path indexing in the service layer path redistributed；In weight In the case where the operation failure in new distribution service layer path, by any not available information reporting in service layer path to IP network domain Controller.

According to embodiments of the present invention, a kind of side of determining method of path that IP network is merged with optical transport network is additionally provided Method embodiment, specifically includes the following steps:

Step S11, the second controller of the first controller transmitting path distribution request in IP network domain to optical-fiber network domain；

Step S12, second controller response path distribution request, to be located at light positioned at the distribution of the virtual link in IP network domain The service layer path of network domains；

Step S13, the first controller receive the path indexing in the one or more service layer path that second controller returns, And save the corresponding relationship of the path indexing in one or more service layer path and the link identification of virtual link.

Optionally, the path indexing in one or more service layer path and the link of virtual link are saved in the first controller After the corresponding relationship of mark, when receiving the first controller is the path operations request that virtual link is sent, the second control Device execution route operation requests request the path operations executed；The operating result of first controller RX path operation, and press The path indexing list in optical-fiber network domain is updated according to operating result, wherein promising virtual link distribution is saved in path indexing list One or more service layer path path indexing.

The above method of the application is based on SDN framework, and the grown form of SDN framework is as shown in figure 5, main includes application Layer, control layer and infrastructure layer, application layer and control layer are connected by northbound interface (REST API), control layer and basis Facility layer is connected by southbound interface (openflow), and application layer is mainly made of service application, and control layer is mainly controlled by SDN Software composition, for providing network service, infrastructure layer is mainly made of the network equipment SDN control software.

Virtual link is established for the IP network equipment room across optical-fiber network by the SDN controller in IP network domain, and by light The optical-fiber network domain service layer path that network domains SDN controller generates a plurality of candidate is associated with the virtual link.It, can using this method It, then can be with to greatly improve the path computing efficiency that IP network is merged with optical transport network, and due to supporting SDN control mode Various flexible strategies, including the scalable appearance of path bandwidth, the demands such as routing policy setting are supported well.

Detailed process is as shown in Figure 6:

Step S601 (including step S601_1 and step S601_2), (the i.e. IP SDN control of IP network domain SDN controller Device) it is the IP network equipment room across optical-fiber network by manual configuration virtual link (or automatically configuring virtual link), and to Optical-fiber network domain SDN controller (i.e. OTN SDN controller) issues the path computing request of photosphere, calculates one or more candidate's Optical-fiber network domain service layer path.The type for requesting the path calculated is work or protection, and requesting the type calculated is to increase newly, delete It removes, Bandwidth adjustment, inquiry or refreshing.

The various protocols such as Netconf, Restful API, Openflow can be used to send in above-mentioned path computing request, It is specifically chosen which kind of agreement, the application is not construed as limiting.

Step S602, after optical-fiber network domain SDN controller receives request, processing mode is as follows:

Mode 1, if calculate type be it is newly-increased, calculate one or more candidate service layer path, all works Make to carry out SRLG (full name is Shared Risk Link Groups, sharing memory) point between path and Protection path From, and each path all needs to carry out resource allocation and occupancy.Using pathkey mark, (i.e. passage path indexes each path It is identified), and the identification list in service layer path is transmitted to IP network domain SDN controller.

It should be noted that a plurality of service layer path is homologous chummage path, and the protection attribute of mulitpath can be Work or protection, need to carry out SRLG (Shared Risk Link Group, shared link between operating path and Protection path Risk group) separation, and then do not require SRLG to separate between multiple operating paths or between Protection path.Above-mentioned calculation method packet Contain but be not limited to Dijkstra and KSP algorithm, the disjoint paths computational algorithm of use is including but not limited to Suurballe algorithm.

The path computing is then marked if there is having the case where path computing failure in one group of path for each path Failure, and other calculate successful path, labeled as calculating successfully, are transmitted to IP network domain SDN controller together；If turning After issuing IP network domain SDN controller because photosphere link failure cause wherein path become unavailable, then by optical-fiber network domain SDN controller monitors the failure, in the case where path indexing remains unchanged, initiates recalculating for the path, if calculated It is successful then without being reported to IP network road domain SDN controller, if calculating failure, be reported to IP network domain SDN controller, the road It is unavailable that diameter, which indexes corresponding path,.

Mode 2, if calculating type is to delete, it is corresponding to delete the path indexing in the SDN controller of optical-fiber network domain Service layer path, the path resources of release busy and the path indexing.

Mode 3 is inquired by the SDN controller in optical-fiber network domain according to path indexing if calculating type is Bandwidth adjustment To the service layer path, and based on the new bandwidth currently required, the former occupied bandwidth of chain each on path road is tuned up or It turns down.If carrying out the path computing in newly-increased path in the way of in mode 1 because bandwidth not enough causes adjustment to fail, But path indexing continues to use the path indexing, if still calculating failure, returns to the information of Bandwidth adjustment failure.

Mode 4 inquires this according to path indexing by the SDN controller in optical-fiber network domain if calculating type is inquiry Path, and the state and attribute information of feedback path, it is available or unavailable that status information, which refers to path currently,.Attribute includes The path details (such as port, link, node and label wavelength) in service layer path corresponding to pathkey.

Mode 5 inquires the road according to path indexing by optical-fiber network domain SDN controller if calculating type is to refresh Diameter, and according to circumstances original route is optimized.

Step S603, IP network domain SDN controller is by the road in calculated this group of path of the SDN controller of OTN network domains Diameter index list and the link ID of the IP layers of virtual link are associated, and are saved SDN of the incidence relation in IP network domain and controlled In device processed.

Step S604 (including step S604_1 and S604_2) establishes request to IP network domain using APP issuing service SDN controller, IP network domain calculate the virtual link for determining IP layers of path based on topology, and carry out IP layers of link circuit resource distribution, For the virtual link for including in calculated path, then found from IP network domain controller according to virtual link ID pair The path indexing list in all candidate service layers path answered selects one of path indexing, and controls to optical-fiber network domain SDN Device request activates the corresponding service layer's path candidate of the path indexing.

Above-mentioned selection mode can also be selected, such as SRLG value using random selection based on other strategies, this Application is not specifically limited.Above-mentioned optical-fiber network domain SDN controller is using SDN southbound interface come to the light net on service layer path Network equipment carries out arranged in a crossed manner, and southbound interface agreement can be Openflow or Netconf, the application and without limitation.

Step S605, optical-fiber network domain SDN controller passage path index the corresponding service layer path for finding storage, and right Each light layer devices on path, are respectively set interconnection, to complete path activation.

By using the above method, relative to traditional IP and light coordinated mechanism calculation method, due in IP network domain The equipment room in cross-domain smooth network domain is configured with virtual link, then IP network domain can be regarded based on the whole network in two domains in the domain IP and area of light Figure topology is compared to carry out global router-level topology and is formerly only available the first calculating domain IP routing, then passes through GMPLS UNI by edge device Interface requests calculate for Layer Path, and the success rate and path reasonability for calculating routing are improved；By being in advance IP layers Virtual link calculates candidate service layer path, which can be used at any time, can greatly reduce two layers of the path IP and light The time of foundation；IP and the interaction of two layers of light of path are based on SDN controller, and the standardization of interface and ease for use allow to flexibly Various strategy extensions are done based on this method, the GMPLS uni interface before comparing can greatly improve the efficiency of intercommunication, drop The difficulty of low intercommunication.

It should be noted that IP network road domain and optical-fiber network domain can carry out a group net interconnecting based on overlay model.It is fixed in standard Justice supports IP network domain and light net using GMPLS UNI (user-network interface that Generalized Multiprotocol Label exchanges) agreement The intercommunication of network domain.

Traditional approach needs to rely on traditional GMPLS agreement.And after SDN network framework, these agreements are all connect by SDN south orientation Mouth agreement replaces, so user demand can be preferably adapted to using the present processes.

For several main treatment processes involved in more vivid description the application method, below by specific reality Mode is applied to be illustrated:

Embodiment 1

IP network road domain request optical-fiber network domain creates service layer path and maps to IP floor virtual link.

As shown in fig. 7, FD (Forwarding Domain forwards domain) one device node of mark, FD (P) -1, FD (P) - 2 be respectively two device nodes in IP network domain, IP layer of virtual link (i.e. Virtual Link) IP layers can not intercommunication, need Pass through optical-fiber network layer intercommunication.FD-1, FD-2 are the ethernet layer node (its service layer is ODUk) in optical-fiber network domain.LTP (Logical Terminal Point, logical terminal (LTERM) point) is used to identification port, and LTP-1-1 and LTP-2-1 are service layer path Sourcesink port (including source port and egress mouth), LTP-4-1, LTP-4-2, LTP-6-1, LTP-6-2 be ethernet layer NNI Mouth port, to generate ethernet link, ETH FD indicates that ethernet layer, etherlink1, etherlink2 are ether network chain Road.IP SDN Controller is the SDN controller in IP network domain, and OTN SDN Controller is the SDN of OTN network domains Controller.Concrete processing procedure is as follows:

Step S701 (including S701_1 and S701_2), IP SDN Controller establish FD (P) -1 to FD (P) -2 it Between virtual link Vitual Link.

Step S702, IP SDN Controller, which initiates calculation road, to be requested to give OTN SDN Controller, which is based on Netconf agreement is sent, and calculating in the request of road includes type of service (such as EVPL, i.e. Ethernet virtual private line service), Yi Jiyi Group PATH calculates road request, calculates road request, including following information: action type (increase), path type (work for every PATH Or protection).

Step S703 (including S703_1 and S703_2), OTN SDN Controller processing calculate road request, calculate from The mulitpath of LTP-1-1 to LTP-2-1, at this point, the operational attribute of PATH (i.e. service layer path) attribute is to increase, first All job category paths are found, then, do not consider that SRLG separation property is calculated, it is all calculating after the completion of calculating When protecting the path of type, need to consider to separate with the SRLG of operating paths all before.Protection path finally is calculated, and Resource occupation is carried out for calculating successful PATH.

Step S704, OTN SDN Controller compiles calculated all PATH using pathkey (path indexing) Number, pathkey is the shaping number of a 16bit.And by the corresponding relationship of pathkey and each PATH and PATH hop-by-hop path Information is maintained in controller.As shown in Figure 7, two heavy black lines are service layer's path P ath1 and Path2, and Path1 is adopted It is identified with pathkey1, Path2 is identified using pathkey2.

Step S705, OTN SDN Controller returns the pathkey1 and pathkey2 that calculate successfully all PATH Back to IP SDN Controller.

Step S706 (including S706_1, S706_2 and S706_3), APP are handed down to IP SDN Controller, establish industry Business, IP SDN Controller completes IP layers of router-level topology at this time, when at virtual Link in the paths, then to OTN SDN Controller request activation service layer path, OTN SDN Controller according to pathkey (pathkey1 or Pathkey2), the calculated path PATH before finding, by southbound interface (using Netconf agreement), to service layer's equipment Lower intersection setting realizes the activation in service layer path to get through transmitting path.

Embodiment 2

Delete service layer path in IP network road domain request optical-fiber network domain.

As shown in figure 8, FD (Forwarding Domain forwards domain) one device node of mark, FD (P) -1, FD (P) - 2 be respectively two device nodes in IP network domain, IP layer of virtual link (i.e. Virtual Link) IP layers can not intercommunication, need Pass through optical-fiber network layer intercommunication.FD-1, FD-2 are the ethernet layer node (its service layer is ODUk) in optical-fiber network domain.LTP (Logical Terminal Point, logical terminal (LTERM) point) is used to identification port, and LTP-1-1 and LTP-2-1 are service layer path Sourcesink port, LTP-4-1, LTP-4-2, LTP-6-1, LTP-6-2 be ethernet layer NNI mouth port, to generate ether Network chain road, ETH FD indicate ether domain, and etherlink1, etherlink2 are ethernet link.IP SDN Controller For the SDN controller in IP network domain, OTN SDN Controller is the SDN controller of OTN network domains.Concrete processing procedure is such as Under:

Step S801, IP SDN Controller initiates to delete path request (deletion object is pathkey2) to OTN SDN Controller, the request are sent based on Netconf agreement, carry the action type (deletion) of every PATH, path Type (work or protection).

Step S802 (including S802_1 and S802_2), OTN SDN Controller search the corresponding road pathkey2 By, and the path is deleted, discharge resource and pathkey2.

Step S803, OTN SDN Controller is returned to IP SDN Controller deletes successfully response.

Embodiment 3

IP network road domain request optical-fiber network domain carries out the scalable appearance of bandwidth to the corresponding service layer path of IP floor virtual link.

As shown in figure 9, the meaning of the mark in Fig. 9 is identical as Fig. 7 and Fig. 8, details are not described herein.Concrete processing procedure is such as Under:

Step S901, IP SDN Controller initiates the scalable appearance request of bandwidth and gives OTN SDN Controller, this is asked It asks and is sent based on Netconf agreement.Calculating in the request of road includes type of service (such as EVPL, i.e. Ethernet virtual private line service). And one group of PATH that need to adjust bandwidth is requested, for every PATH, including following information: action type (Bandwidth adjustment), road Diameter type (work or protection).

Step S902 (including S902_1 and S902_2), the scalable appearance request of OTN SDN Controller processing bandwidth, root The path P ath1 of preservation is found according to the pathkey1 in the path, and from LTP-1-1 to LTP-2-1, start adjusts path Bandwidth processing.

Step S903, after adjusting successfully, OTN SDN Controller returns to IP SDN for success response is adjusted Controller。

Embodiment 4

To the reparation in path when service layer's path failure.

As shown in Figure 10, the meaning of the mark in Figure 10 is identical as Fig. 7 and Fig. 8, and details are not described herein.Path2 is to occur The service layer path of failure, Path2 ' is the service layer path recalculated, specific as follows:

Step S1001 (including S1001_1 and S1001_2), OTN network domains have been that the virtual link in IP network domain is raw At Liao Liangtiao service layer path, respectively Path1 (pathkey1) and Path2 (pathkey2).

Due in the routing in path in service layer path P ath2 (pathkey2) in step S1002, OTN network domains Certain photosphere link breaks down, so that the entire path Path2 be caused to become unavailable.

Step S1003, OTN network domains SDN Controller monitors the failure, then carries out reruning for path automatically, when Path P ath2 (LTP-1-1, LTP-4-2, LTP-6-2, LTP-2-1) path failure then reruns and calculates a Path2 ' (LTP- 1-1, LTP-4-3, LTP-6-3, LTP-2-1), pathkey is constant, remains as pathkey2.It can guarantee IP network in this way Domain is not required to perceive the fluctuation in path caused by failure in general service layer's network.

Step S1004 does not have to be reported to IP network road domain SDN controller if recalculating path success；If again Path failure is calculated, then needs to be reported to the corresponding service layer path IP network domain SDN controller pathkey2 and can not With.

Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing The part that technology contributes can be embodied in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.

Embodiment 2

A kind of path determining device that IP network is merged with optical transport network is additionally provided in the embodiment of the present invention.The device For realizing above-described embodiment and preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term The combination of the software and/or hardware of predetermined function may be implemented in " module ".Although device is preferably described in following embodiment It is realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.

Figure 11 is showing for the path determining device that a kind of IP network according to an embodiment of the present invention is merged with optical transport network It is intended to.As shown in figure 11, the apparatus may include the first allocation unit 111, determination unit 112 and the first transmission units 113。

First allocation unit 111 is divided for receiving across when the transmission services request in optical-fiber network domain for transmission services It is coordinated in the virtual link for meeting business demand in IP network domain.

Determination unit 112, for determine in the service layer path that pre-saves with the matched destination service layer of virtual link Path, wherein service layer path is located in optical-fiber network domain.

First transmission unit 113, for sending for activating the activation in destination service layer path to request to optical-fiber network domain Controller.

Through the foregoing embodiment, the first allocation unit is when receiving the transmission services for crossing over optical-fiber network domain request, to pass Defeated traffic assignments are located at the virtual link for meeting business demand in IP network domain；Determination unit determines the service layer road pre-saved In diameter with virtual link matched destination service layer path, wherein service layer path is located in optical-fiber network domain；First transmission unit The controller for activating the activation request in destination service layer path to optical-fiber network domain is sent, by establishing virtual link and service The corresponding relationship in layer path, to solve in the related technology, photosphere provided for IP layers the efficiency in required service layer path compared with It is low, realize the technical effect improved efficiency.

In the above-described embodiments, determination unit includes: the first acquisition module, for obtaining in advance as virtual link distribution One or more service layer path；Module is chosen, for selecting from one or more service layer path by preset algorithm With virtual link matched destination service layer path.

In an alternative embodiment, the first transmission unit includes: the second acquisition module, for obtaining destination service layer The path indexing in path；Sending module carries the activation of the path indexing in destination service layer path and requests to light for sending The controller of network domains.

In another alternative embodiment, the device of the application may also include that the second transmission unit, for for transmit Traffic assignments are located at meet the virtual link of business demand in IP network domain before, transmitting path distribution request to optical-fiber network domain Controller, wherein path allocation request is that virtual link distributes service layer path for requesting；First receiving unit, for connecing Receive the path indexing in one or more service layer path of the controller return in optical-fiber network domain；Storage unit, for saving one Or the corresponding relationship of the link identification of the path indexing and virtual link in a plurality of service layer path is to path indexing list.

Optionally, the device of the application may also include that third transmission unit, for saving one or more service layer road After the corresponding relationship to path indexing list of the link identification of the path indexing and virtual link of diameter, transmitting path operation requests To the controller in optical-fiber network domain；Second receiving unit, the operating result that the controller for receiving optical-fiber network domain returns, and be based on Operating result updates path indexing list.

A kind of path determining device that IP network is merged with optical transport network is additionally provided in the embodiment of the present invention.Figure 12 is The schematic diagram for the path determining device that another kind IP network according to an embodiment of the present invention is merged with optical transport network.Such as Figure 12 institute Show, the apparatus may include: the second allocation unit 121, the first return unit 122 and activation unit 123.

Second allocation unit 121, for being the path allocation that virtual link is sent in the controller for receiving IP network domain When request, one or more service layer path is distributed for virtual link.

First return unit 122, for returning to the path indexing in one or more service layer path to the control in IP network domain Device processed.

Unit 123 is activated, the request for sending in the controller for receiving IP network domain activates destination service layer path Activation request when, activate destination service layer path, wherein destination service layer path be one or more service layer path in IP The controller of network domains is the service layer path of virtual link distribution.

Through the foregoing embodiment, the second allocation unit is the road that virtual link is sent in the controller for receiving IP network domain When diameter distribution request, one or more service layer path is distributed for virtual link；First return unit returns to one or more clothes Be engaged in layer path path indexing to IP network domain controller；Activation unit is asked what the controller for receiving IP network domain was sent When asking the activation request in activation destination service layer path, destination service layer path is activated, wherein destination service layer path is one Or the controller in IP network domain is the service layer path of virtual link distribution in a plurality of service layer path, by establishing virtual link With the corresponding relationship in service layer path, to solve in the related technology, photosphere provides required service layer path for IP layers Efficiency is lower, realizes the technical effect improved efficiency.

Optionally, above-mentioned apparatus further include: execution unit, for distributing one or more service layer road for virtual link After diameter, when the controller for receiving IP network domain is the path operations request that virtual link is sent, execution route operation is asked Seek the path operations for requesting to execute；Second return unit, for return path operation operating result to optical-fiber network domain control Device processed, wherein operating result is used to update the path indexing list in optical-fiber network domain, saves promising virtual chain in path indexing list The path indexing in one or more service layer path of road distribution.

Above-mentioned execution unit includes: that third obtains module, the path operations for carrying in acquisite approachs operation requests Action type；First execution module, for executing path operations corresponding with action type.

Specifically, the first execution module includes: newly-increased submodule, in the case where action type is newly-increased, being empty Quasi- link increases service layer path newly；Submodule is deleted, for deleting as virtual link point in the case where action type is to delete The service layer path matched；Adjusting submodule, for being adjusted to virtual link distribution in the case where action type is Bandwidth adjustment Service layer path bandwidth；Submodule is inquired, is used in the case where action type is inquiry, the shape in query service layer path State information and attribute information；Refresh submodule, for refreshing as virtual link distribution in the case where action type is to refresh Service layer path.

It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any Combined form is located in different processors.

Embodiment 3

A kind of pathway de-termination system that IP network is merged with optical transport network is additionally provided in the embodiment of the present invention.The system For realizing above-described embodiment and preferred embodiment, the descriptions that have already been made will not be repeated.The system includes being located at IP network First controller in network domain and second controller positioned at optical-fiber network domain, wherein second controller is for responding the first controller The path allocation of transmission is requested, for the service layer path for being located at optical-fiber network domain positioned at the distribution of the virtual link in IP network domain；First Controller is used to receive the path indexing in one or more service layer path of second controller return, and saves one or more The corresponding relationship of the link identification of the path indexing and virtual link in service layer path.

Embodiment 4

The embodiments of the present invention also provide a kind of storage mediums.Optionally, in the present embodiment, above-mentioned storage medium can To be arranged to store the program code for executing following steps:

S21 is being received across when the transmission services request in optical-fiber network domain, is being located in IP network domain for transmission services distribution Meet the virtual link of business demand；

S22, determine in the service layer path that pre-saves with virtual link matched destination service layer path, wherein clothes Business layer path is located in optical-fiber network domain；

S23 sends the controller for activating the activation request in destination service layer path to optical-fiber network domain.

Optionally, storage medium is also configured to store the program code for executing following steps:

S31 is virtual link when the controller for receiving IP network domain is the path allocation request that virtual link is sent Distribute one or more service layer path；

S32 returns to the path indexing in one or more service layer path to the controller in IP network domain；

S33, in the activation request in the request activation destination service layer path that the controller for receiving IP network domain is sent, Activate destination service layer path, wherein destination service layer path is the control in IP network domain in one or more service layer path Device is the service layer path of virtual link distribution.

Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or The various media that can store program code such as CD.

Optionally, in the present embodiment, processor is executed according to program code stored in storage medium: being received When transmission services across optical-fiber network domain are requested, the virtual chain for meeting business demand in IP network domain is located at for transmission services distribution Road；Determine in the service layer path that pre-saves with virtual link matched destination service layer path, wherein service layer, position, path In optical-fiber network domain；Send the controller for activating the activation request in destination service layer path to optical-fiber network domain.

Optionally, in the present embodiment, processor is executed according to program code stored in storage medium: being received When the controller in IP network domain is the path allocation request that virtual link is sent, one or more service layer is distributed for virtual link Path；The path indexing in one or more service layer path is returned to the controller in IP network domain；Receiving IP network domain When the activation request in the request activation destination service layer path that controller is sent, destination service layer path is activated, wherein target clothes Business layer path is that the controller in IP network domain in one or more service layer path is the service layer path of virtual link distribution.

Optionally, the specific example in the present embodiment can be with reference to described in above-described embodiment and optional embodiment Example, details are not described herein for the present embodiment.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. the determining method of path that a kind of IP network is merged with optical transport network characterized by comprising

It is receiving across when the transmission services request in optical-fiber network domain, is being located in IP network domain for transmission services distribution and meets business The virtual link of demand；

Determine in the service layer path that pre-saves with the virtual link matched destination service layer path, wherein the clothes Business layer path is located in optical-fiber network domain；

Send the controller for activating the activation request in destination service layer path to the optical-fiber network domain；

Wherein it is determined that including: with the virtual link matched destination service layer path in the service layer path pre-saved

It obtains in advance as one or more service layer path of virtual link distribution；

It is selected from one or more service layer path by preset algorithm and the matched mesh of the virtual link Mark service layer path；

Before meeting the virtual link of business demand in IP network domain for transmission services distribution, the method also includes:

Transmitting path distribution request to the optical-fiber network domain controller, wherein path allocation request is institute for requesting State virtual link distribution service layer path；

Receive the path indexing in one or more service layer path of the controller return in the optical-fiber network domain；

Save the corresponding relationship of the path indexing in one or more service layer path and the link identification of the virtual link To path indexing list.

2. the method according to claim 1, wherein being retrieved as the virtual link pre-assigned one or more Service layer path includes:

Obtain the link identification of the virtual link；

One or more service layer path corresponding with the link identification and/or described in acquisite approachs index list The path indexing in one or more service layer path.

3. method according to claim 1 or 2, which is characterized in that send for activating destination service layer path Controller of the activation request to the optical-fiber network domain include:

Obtain the path indexing in destination service layer path；

The activation for sending the path indexing for carrying destination service layer path is requested to the controller in optical-fiber network domain.

4. the method according to claim 1, wherein in the path for saving one or more service layer path After the corresponding relationship to path indexing list of the link identification of index and the virtual link, the method also includes:

Transmitting path operation requests to the optical-fiber network domain controller, wherein path operations request is for requesting to clothes Business layer path is operated；

The operating result that the controller in the optical-fiber network domain returns is received, and the path indexing is updated based on the operating result List.

5. the method according to claim 1, wherein one or more service layer path is homologous chummage road Diameter.

6. the determining method of path that a kind of IP network is merged with optical transport network characterized by comprising

When the controller for receiving IP network domain is the path allocation request that virtual link is sent, distributed for the virtual link One or more service layer path；

The path indexing in one or more service layer path is returned to the controller in the IP network domain；

In the activation request in the request activation destination service layer path that the controller for receiving the IP network domain is sent, activation Destination service layer path, wherein destination service layer path is IP described in one or more service layer path The controller of network domains is the service layer path of virtual link selection.

7. according to the method described in claim 6, it is characterized in that, distributing one or more service layer for the virtual link After path, the method also includes:

When the controller for receiving the IP network domain is the path operations request that the virtual link is sent, the road is executed Diameter operation requests request the path operations executed；

The operating result of the path operations is returned to the controller in optical-fiber network domain, wherein the operating result is for updating institute The path indexing list in optical-fiber network domain is stated, one or more of the promising virtual link distribution is saved in the path indexing list The path indexing in service layer path.

8. the method according to the description of claim 7 is characterized in that executing the path operations requests the path executed Operation includes:

Obtain the action type of the path operations carried in the path operations request；

Execute path operations corresponding with the action type.

9. according to the method described in claim 8, it is characterized in that, executing path operations packet corresponding with the action type It includes:

In the case where the action type is newly-increased, service layer path is increased newly for the virtual link；

In the case where the action type is to delete, the service layer path for virtual link distribution is deleted；

In the case where the action type is Bandwidth adjustment, it is adjusted to the band in the service layer path of the virtual link distribution It is wide；

In the case where the action type is inquiry, the status information and attribute information in the service layer path are inquired；

In the case where the action type is to refresh, refresh the service layer path for virtual link distribution.

10. according to the method described in claim 9, it is characterized in that, including: for the newly-increased service layer path of the virtual link

According to the path starting point and path termination of path operations request instruction, service layer road is distributed for the virtual link Diameter；

Save the path indexing in the service layer path of distribution；

For service layer's path allocation Internet resources of distribution.

11. according to the method described in claim 9, it is characterized in that, deleting the service layer path for virtual link distribution Include:

Obtain the path indexing in service layer path to be deleted in the path operations request；

Delete service layer path corresponding with the path indexing got and the road in the deleted service layer path locally saved Diameter index；

It is released to be deleted the Internet resources of service layer's path allocation.

12. according to the method described in claim 9, it is characterized in that, being adjusted to the service layer path of the virtual link distribution Bandwidth include:

The current bandwidth in the service layer path is adjusted to the bandwidth indicated into path operations request.

13. according to the method described in claim 9, it is characterized in that, refreshing the service layer path for virtual link distribution Include:

Redefining one has same paths starting point and path termination with the service layer path distributed for the virtual link Service layer path；

The service layer path of the virtual link distribution is replaced by using the service layer path redefined.

14. according to the method described in claim 9, it is characterized in that, executing path operations corresponding with the action type Later, the method also includes:

When any service layer path is unavailable, the path starting point and path termination in any service layer path are obtained；

Service layer path is redistributed according to the path starting point and path termination in any service layer path；

In the successful situation of operation for redistributing service layer path, using the path indexing in any service layer path as The path indexing in the service layer path redistributed；

It, will be in any not available information in service layer path in the case where redistributing the operation failure in service layer path It reports to the controller in the IP network domain.

15. according to the method described in claim 6, it is characterized in that, in described one or more distributed for the virtual link In service layer path, one or more service layer path is homologous chummage path.

16. according to the method described in claim 6, it is characterized in that, in described one or more distributed for the virtual link In service layer path, the protection attribute in the service layer path is job category and protection type, the service layer of job category Path is currently used service layer path, and protecting the service layer path of type is not currently used service layer path, wherein It is separated between the service layer path of job category and the service layer path of protection type by SRLG.

17. according to the method described in claim 6, it is characterized in that, in described one or more distributed for the virtual link In service layer path, the service layer path include in ether layer path, ODUk layers of path and Layer Path at least it One.

18. the path determining device that a kind of IP network is merged with optical transport network characterized by comprising

First allocation unit is located at for receiving across when the transmission services request in optical-fiber network domain for transmission services distribution Meet the virtual link of business demand in IP network domain；

Determination unit, for determine in the service layer path that pre-saves with the virtual link matched destination service floor road Diameter, wherein the service layer path is located in optical-fiber network domain；

First transmission unit, for sending for activating the activation in destination service layer path to request to the optical-fiber network domain Controller；

The determination unit includes:

First obtains module, for obtaining in advance as one or more service layer path of virtual link distribution；

Module is chosen, for selecting and the virtual link from one or more service layer path by preset algorithm Matched destination service layer path described device further include:

Second transmission unit, for for transmission services distribution be located at IP network domain in meet business demand virtual link it Before, the controller of transmitting path distribution request to the optical-fiber network domain, wherein the path allocation request is for requesting to be described Virtual link distributes service layer path；

First receiving unit, one or more service layer path that the controller for receiving the optical-fiber network domain returns Path indexing；

Storage unit, for saving the path indexing in one or more service layer path and the chain road sign of the virtual link The corresponding relationship of knowledge is to path indexing list.

19. device according to claim 18, which is characterized in that described first, which obtains module, includes:

First acquisition submodule, for obtaining the link identification of the virtual link；

Second acquisition submodule, for one or more clothes corresponding with the link identification in acquisite approachs index list The path indexing in business layer path and/or one or more service layer path.

20. device described in 8 or 19 according to claim 1, which is characterized in that first transmission unit includes:

Second obtains module, for obtaining the path indexing in destination service layer path；

Sending module carries the activation of the path indexing in destination service layer path and requests to optical-fiber network for sending The controller in domain.

21. device according to claim 18, which is characterized in that described device further include:

Third transmission unit, in the path indexing and the virtual link for saving one or more service layer path After the corresponding relationship of link identification to path indexing list, the controller of transmitting path operation requests to the optical-fiber network domain, Wherein, the path operations request operates service layer path for requesting；

Second receiving unit, the operating result that the controller for receiving the optical-fiber network domain returns, and tied based on the operation Fruit updates the path indexing list.

22. the path determining device that a kind of IP network is merged with optical transport network characterized by comprising

Second allocation unit, for the controller for receiving IP network domain be virtual link send path allocation request when, One or more service layer path is distributed for the virtual link；

First return unit, for returning to the path indexing in one or more service layer path to the control in the IP network domain Device processed；

Unit is activated, the request activation destination service layer path for sending in the controller for receiving the IP network domain is swashed When request living, destination service layer path is activated, wherein destination service layer path is one or more service layer The controller of IP network domain described in path is the service layer path of virtual link selection.

23. device according to claim 22, which is characterized in that described device further include:

Execution unit, for receiving the IP after distributing one or more service layer path for the virtual link When the controller of network domains is the path operations request that the virtual link is sent, executes the path operations and request to hold Capable path operations；

Second return unit, for returning to the operating result of the path operations to the controller in optical-fiber network domain, wherein the behaviour Make result for updating the path indexing list in the optical-fiber network domain, saves the promising virtual chain in the path indexing list The path indexing in one or more service layer path of road distribution.

24. device according to claim 23, which is characterized in that the execution unit includes:

Third obtains module, for obtaining the action type of the path operations carried in the path operations request；

First execution module, for executing path operations corresponding with the action type.

25. device according to claim 24, which is characterized in that first execution module includes:

Newly-increased submodule, for increasing service layer path newly for the virtual link in the case where the action type is newly-increased；

Submodule is deleted, for deleting the service for virtual link distribution in the case where the action type is to delete Layer path；

Adjusting submodule, in the case where the action type is Bandwidth adjustment, being adjusted to the virtual link distribution The bandwidth in service layer path；

Submodule is inquired, for inquiring the status information in the service layer path in the case where the action type is inquiry And attribute information；

Refresh submodule, for refreshing the service for virtual link distribution in the case where the action type is to refresh Layer path.

26. the determining method of path that a kind of IP network is merged with optical transport network characterized by comprising

The first controller transmitting path distribution request in IP network domain to optical-fiber network domain second controller；

The second controller responds the path allocation request, to be located at institute positioned at the distribution of the virtual link in the IP network domain State the service layer path in optical-fiber network domain；

First controller receives the path indexing in the one or more service layer path that the second controller returns, And save the corresponding relationship of the path indexing in the one or more service layer path and the link identification of the virtual link.

27. according to the method for claim 26, which is characterized in that saved described in one or more in first controller After the corresponding relationship of the link identification of the path indexing in service layer path and the virtual link, the method also includes:

When receiving first controller is the path operations request that the virtual link is sent, the second controller is held The row path operations request the path operations executed；

First controller receives the operating result of the path operations, and updates the optical-fiber network according to the operating result The path indexing list in domain, wherein the one or more of the promising virtual link distribution is saved in the path indexing list The path indexing in the service layer path.

28. according to the method for claim 27, which is characterized in that the second controller executes the path operations request Request execute path operations include:

The second controller obtains the action type of the path operations carried in the path operations request；

The second controller executes path operations corresponding with the action type.

29. according to the method for claim 28, which is characterized in that the second controller executes and the action type pair The path operations answered include:

In the case where the action type is newly-increased, the second controller is that the virtual link increases service layer path newly；

In the case where the action type is to delete, the second controller deletes the service layer distributed for the virtual link Path；

In the case where the action type is Bandwidth adjustment, the second controller is adjusted to the clothes of the virtual link distribution The bandwidth in business layer path；

The action type be inquiry in the case where, the second controller inquire the service layer path status information and Attribute information；

In the case where the action type is to refresh, the second controller refreshes the service layer distributed for the virtual link Path.

30. the pathway de-termination system that a kind of IP network is merged with optical transport network, which is characterized in that including being located at IP network domain First controller and second controller positioned at optical-fiber network domain, wherein

The second controller is used to respond the path allocation request that first controller is sent, for positioned at the IP network domain Virtual link distribution be located at the optical-fiber network domain service layer path；

First controller is used to receive the path in the one or more service layer path that the second controller returns Index, and the path indexing pass corresponding with the link identification of the virtual link for saving the one or more service layer path System.

31. system according to claim 30, which is characterized in that

The second controller is also used to receiving first controller be that the path operations that the virtual link is sent are asked When asking, executes the path operations and request the path operations executed；

First controller is also used to receive the operating result of the path operations, and according to described in operating result update The path indexing list in optical-fiber network domain, wherein one of the promising virtual link distribution is saved in the path indexing list Or the path indexing in a plurality of service layer path.

32. system according to claim 31, which is characterized in that the second controller includes:

4th obtains module, for obtaining the action type of the path operations carried in the path operations request；

Second execution module, for executing path operations corresponding with the action type.

33. system according to claim 32, which is characterized in that second execution module is also used to: