CN103731346A - Method and system for generating routing - Google Patents
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Abstract
The invention discloses a method and a system for generating routing, relates to the technical field of communication networks, and aims at solving the problem of low success rate of light paths established when all-optical communication networks transmit businesses. A system emulator receives network link information corresponding to all nodes in the all-optical communication networks transmitted by a network manager and receives input optical cable network performance parameters; path calculation is performed through combination of the network link information and the optical cable network performance parameters to generate a transmission flat routing table corresponding to all the nodes, and the transmission flat routing table is transmitted to the network manager to enable the network manager to establish the light paths through the transmission flat routing table.
Description
Technical field
The present invention relates to communication network technology field, relate in particular to a kind of method and system that generate route.
Background technology
All-optical communication network is a service-oriented and user's intelligent all-optical communication network, and while referring to the transmission in net of optical information stream and exchange, the form with light exists all the time, thereby reaches the object of efficient transfer data.All-optical communication network mainly forms by transmitting plane, management plane and control plane.Wherein, transmitting plane is the passage that business transmits, and unidirectional or transmitted in both directions end to end can be provided; Management plane is for managing the equipment on all-optical communication network, also can be for the foundation (management plane receives artificial network link information and the occupation condition of grasping and carries out the path that path computing obtains, and then sets up light path according to routing table in transmission plane) of light path; Control plane is for automatically carrying out the foundation of light path, be that the network link information that the source node basis on control plane is obtained is carried out path computing, adopt RSVP (Resource Reservation Protocol, RSVP) carry out the reserved of resource, then according to reserved resource and the path calculating, control plane is set up light path according to the routing table calculating in transmission plane.
Yet, although the light path of setting up in the prior art has availability, but because the transmission plane of all-optical communication network is based on actual physics network, exist the restriction of fiber cable network performance parameter, cause the light path of the source node foundation of control plane not possess accessibility, make to transmit plane and adopt the light path of source node foundation can not carry out the transmission of business.Wherein.Fiber cable network performance parameter comprises jumping figure, attenuation, link weight, power, chain-circuit time delay, Optical Signal To Noise Ratio, the error rate, chromatic dispersion, polarization mode dispersion etc.When the light path of setting up is unreachable, the source node of control plane needs again according to the network link information of obtaining, to carry out path computing, then adopts RSVP to obtain reserved resource, thereby re-establishes the light path that can reach.The time of setting up light path while causing transport service is longer.
Summary of the invention
Embodiments of the invention provide a kind of method and system that generate route, set up the problem that light path success rate is lower when solving all-optical communication network transport service.
On the one hand, embodiments of the invention provide a kind of method that generates route, comprising:
Network link information corresponding to all nodes in the all-optical communication network that system emulation device receiving network managing device sends;
Described system emulation device receives the fiber cable network performance parameter of input;
Described system emulation device carries out path computing by described network link information in conjunction with described fiber cable network performance parameter, generates the transmission plane routing table that described all nodes are corresponding;
Described system emulation device sends to described network manager by described transmission plane routing table, so that described network manager is used described transmission plane routing table to set up light path.
In another embodiment of the present invention, when the network link information that all nodes are corresponding in described all-optical communication network and/or described fiber cable network performance parameter change,
Described system emulation device receives following at least any one information: the network link information of the renewal that described all nodes that described network manager sends are corresponding, and the fiber cable network performance parameter of the renewal of input;
Described system emulation device is by the network link information of described renewal and/or the fiber cable network performance parameter of described renewal, in conjunction with original described network link information, described fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table after upgrading;
Described system emulation device sends to described network manager by the transmission plane routing table after described renewal.
In another embodiment of the present invention, described method also comprises:
Described system emulation device sends to all nodes in described all-optical communication network by the transmission plane routing table after described transmission plane routing table and described renewal.
In another embodiment of the present invention, described method also comprises:
The road construction request that described network manager reception sources node sends, described road construction request comprises the positional information of source node and the positional information of destination node;
Described network manager utilizes network link information, the fiber cable network performance parameter between described source node and described destination node to generate effective routing;
Described network manager is compared the content in described effective routing and described transmission plane routing table, obtains the first best routed path, adopts described the first best routed path to set up light path;
Described network manager sends to all nodes in described light path by the routing information of described light path, so that all nodes in described light path carry out the transmission of business by described light path.
In another embodiment of the present invention, at described network manager, to utilize after network link information between described source node and described destination node, fiber cable network performance parameter generate effective routing, described method also comprises:
Described network manager sends to described source node by described effective routing;
Described source node is compared the content in described effective routing and described transmission plane routing table according to described, obtain the second best routed path, and described the second best routed path is sent to described network manager, wherein said the second best routed path is identical or not identical with described the first best routed path;
Described network manager adopts described the second best routed path to set up described light path;
Described network manager sends to all nodes in described light path by the routing information of described light path, so that all nodes in described light path carry out the transmission of business by described light path.
In another embodiment of the present invention, after described network manager sends to described source node by described light path, described method also comprises:
Described network manager RX path switching request, described path switching request is that the described network manager that is used to indicate that any one node in described light path sends is set up the request of protecting light path, described path switching request comprises the positional information of described source node and the positional information of described destination node, and described protection light path is used for replacing described light path;
Described network manager, according to the content in described path switching request, in conjunction with described transmission plane routing table or in conjunction with the transmission plane routing table after described renewal, is set up described protection light path;
Described network manager sends to all nodes in described protection light path by the routing information of described protection light path, so that all nodes carry out the transmission of business by described protection light path in described protection light path.
On the other hand, embodiments of the invention provide a kind of system that generates route, comprising:
System emulation device, network link information corresponding to all nodes of all-optical communication network sending for receiving network managing device; Receive the fiber cable network performance parameter of input; By described network link information, in conjunction with described fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table that described all nodes are corresponding; And described transmission plane routing table is sent to described network manager;
Described network manager, for sending network link information corresponding to all nodes of described all-optical communication network to described system emulation device; And the described transmission plane routing table that receives described system emulation device transmission; Use described transmission plane routing table to set up light path.
In another embodiment of the present invention, when the network link information that all nodes are corresponding in described all-optical communication network and/or described fiber cable network performance parameter change,
Described system emulation device, also for receiving following at least any one information: the network link information of the renewal that described all nodes that described network manager sends are corresponding, and the fiber cable network performance parameter of the renewal of input; By the network link information of described renewal and/or the fiber cable network performance parameter of described renewal, in conjunction with original described network link information, described fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table after upgrading; Transmission plane routing table after described renewal is sent to described network manager; Transmission plane routing table after described transmission plane routing table and described renewal is sent to described all nodes;
Described network manager, also for sending the network link information of the renewal that described all nodes are corresponding to described system emulation device; And receive the transmission plane routing table after the described renewal that described system emulation device sends.
In another embodiment of the present invention, described network manager, the road construction request also sending for reception sources node, described road construction request comprises the positional information of source node and the positional information of destination node; Utilize network link information, fiber cable network performance parameter between described source node and described destination node to generate effective routing; Content in described effective routing and described transmission plane routing table is compared, obtain the first best routed path, adopt described the first best routed path to set up light path; The routing information of described light path is sent to all nodes in described light path, so that all nodes in described light path carry out the transmission of business by described light path; Or described effective routing is sent to described source node; Receive the second best routed path that described source node sends, wherein said the second best routed path is identical or not identical with described the first best routed path; Adopt described the second best routed path to set up described light path; The routing information of described light path is sent to all nodes in described light path.
In another embodiment of the present invention, described network manager, also for RX path switching request, described path switching request is that the described network manager that is used to indicate that any one node in described light path sends is set up the request of protecting light path, described path switching request comprises the positional information of described source node and the positional information of described destination node, and described protection light path is used for replacing described light path; According to the content in described path switching request, in conjunction with described transmission plane routing table or in conjunction with the transmission plane routing table after described renewal, set up described protection light path; The routing information of described protection light path is sent to all nodes in described protection light path, so that all nodes carry out the transmission of business by described protection light path in described protection light path.
A kind of method and system that generate route that the embodiment of the present invention provides, network link information corresponding to all nodes in the all-optical communication network sending by system emulation device receiving network managing device, and the fiber cable network performance parameter that receives input; Then by network link information, in conjunction with fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table that all nodes are corresponding, and transmission plane routing table is sent to network manager, so that network manager is used transmission plane, routing table is set up light path.In the prior art, the source node of control plane is according to network link information calculating path, then adopt RSVP to carry out the reserved of resource, then according to reserved resource and the path that calculates, set up light path, but in all-optical communication network, there is the restriction of fiber cable network performance parameter, cause the light path of setting up not possess accessibility, transmit the light path that plane adopts source node to set up and can not carry out the transmission of business, thereby it is lower to make to set up the success rate of light path.In the present invention, by system emulation device, according to network link information and fiber cable network performance parameter that in all-optical communication network, all nodes are corresponding, calculate the available path that all nodes are corresponding, the available path that all nodes are corresponding carries out statistical summaries, generates the transmission plane routing table that all nodes are corresponding.While making network manager set up light path, can, with reference to transmitting plane routing table, be created as the light path that power is higher.Be that the network manager light path success rate that adopts transmission plane routing table that system emulation device generates to set up is higher and guarantee light path performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of structural representation that generates the system of route that Fig. 1 provides for the embodiment of the present invention;
A kind of flow chart that generates the method for route that Fig. 2 provides for the embodiment of the present invention;
In the method for the generation route that Fig. 3 provides for the embodiment of the present invention, a kind of plane road that transmits is by the schematic diagram of tableau format;
The another kind that Fig. 4 provides for the embodiment of the present invention generates the flow chart of the method for route;
Fig. 5 provide for the embodiment of the present invention another generate the flow chart of the method for route;
The structural representation of a kind of system emulation device that Fig. 6 provides for the embodiment of the present invention;
The structural representation of a kind of network manager that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The present invention is applicable to a kind of system that generates route, and as shown in Figure 1, this system comprises system emulation device 101, network manager 102.
Wherein system emulation device 101, network link information corresponding to all nodes of all-optical communication network sending for receiving network managing device 102; Receive the fiber cable network performance parameter of input; By network link information, in conjunction with fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table that all nodes are corresponding; And transmission plane routing table is sent to network manager 102.
Further, when the network link information that all nodes are corresponding in all-optical communication network and/or fiber cable network performance parameter change, system emulation device 101, also for receiving following at least any one information: the network link information of the renewal that all nodes that network manager 102 sends are corresponding, and the fiber cable network performance parameter of the renewal of input; By the network link information of renewal and/or the fiber cable network performance parameter of renewal, in conjunction with original network link information, fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table after upgrading; Transmission plane routing table after upgrading is sent to network manager 102; The transmission plane routing table transmitting after plane routing table and renewal is sent to all nodes;
After network manager 102 receives the transmission plane routing table transmitting after plane routing table or renewal, network manager 102, the road construction request also sending for reception sources node, road construction request comprises the positional information of source node and the positional information of destination node; Utilize network link information, fiber cable network performance parameter between source node and destination node to generate effective routing; Effective routing and the content transmitting in plane routing table are compared, obtain the first best routed path, adopt the first best routed path to set up light path; The routing information of light path is sent to all nodes in light path, so that all nodes in light path carry out the transmission of business by light path; Or this effective routing is sent to source node; The second best routed path that reception sources node sends, wherein the second best routed path is identical with the first best routed path or not identical; Adopt the second best routed path to set up light path; The routing information of light path is sent to all nodes in light path.
Further alternative, network manager 102, also for RX path switching request, path switching request is that the network manager 102 that is used to indicate that any one node in light path sends is set up the request of protecting light path, path switching request comprises the positional information of source node and the positional information of destination node, and protection light path is used for replacing light path; According to the content in path switching request, in conjunction with transmitting plane routing table or in conjunction with the transmission plane routing table after upgrading, setting up protection light path; The routing information of protection light path is sent to all nodes in protection light path, so that all nodes carry out the transmission of business by protection light path in protection light path.
By foregoing description, be understandable that, network manager 101 is mainly used in setting up light path, and system emulation device 102 is mainly used in generating transmission plane routing table.
For the mode of detailed description generation route, the embodiment of the present invention provides a kind of method that generates route, and as shown in Figure 2, the method specifically comprises:
201, network link information corresponding to all nodes in the all-optical communication network that system emulation device receiving network managing device sends.
System emulation device generates and transmits plane routing table in the present embodiment.Network manager is for managing the network equipment of light net.
Wherein, the network link information that all nodes are corresponding comprises the positional information of each node and the interconnecting channels information between each node.
202, system emulation device receives the fiber cable network performance parameter of input.
203, system emulation device carries out path computing by network link information in conjunction with fiber cable network performance parameter, generates the transmission plane routing table that all nodes are corresponding.
System emulation device is according to network link information generation pass time, in conjunction with fiber cable network performance parameter corresponding to this network link information, as: a factor that affects path in network link information is delay problem, needs so with reference in optical cable network performance parameter: chain-circuit time delay.The chain-circuit time delay of statistics between source node and destination node.In network link information, affect the Optical Signal To Noise Ratio that factor is path in path, need so with reference in optical cable network performance parameter: Optical Signal To Noise Ratio.The Optical Signal To Noise Ratio (Optical Signal to Noise Ratio, OSNR) of statistics between source node and destination node.Length distance that a factor that affects path in network link information is path, needs so with reference in optical cable network performance parameter: jumping figure.The number of the node of statistics between source node and destination node, node of every increase, jumping figure adds 1 automatically; After generating many available routes, check many jumping figures that route is corresponding.
In order to describe in detail, transmit plane routing table, the present embodiment illustrates a routing table that light path is corresponding.Wherein, the source node that this light path is corresponding is A, and destination node is H.Specifically as shown in Figure 3.Transmission plane routing table in Fig. 3 comprises the routing policy of node A-H, available route and Route Selection.Wherein Route Selection comprises best route and the alternate routing that routing policy is corresponding.Best route is used for source node to the preferred route between destination node.Alternate routing is used for replacing best route.When best route occurs when unreachable, the second route of selecting that at least one route in alternate routing is transport service.Wherein, the alternate routing showing in the transmission plane routing table of Fig. 3 is the alternate routing that performance is arranged from high to low.
It should be noted that, the present invention does not limit and transmits plane road by tableau format, and the form of take in the present embodiment in Fig. 3 describes as example.
204, system emulation device sends to network manager by transmission plane routing table, so that network manager is used transmission plane, routing table is set up light path.
A kind of method that generates route that the embodiment of the present invention provides, network link information corresponding to all nodes in the all-optical communication network sending by system emulation device receiving network managing device, and the fiber cable network performance parameter that receives input; Then by network link information, in conjunction with fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table that all nodes are corresponding, and transmission plane routing table is sent to network manager, so that network manager is used transmission plane, routing table is set up light path.In the prior art, source node by control plane is according to network link information and occupation condition calculating path or artificial input path, set up light path, owing to there being the restriction of fiber cable network performance parameter in all-optical communication network, cause the light path of setting up not possess accessibility, thereby it is lower to make to set up the success rate of light path.In the present invention, by system emulation device, according to network link information and fiber cable network performance parameter that in all-optical communication network, all nodes are corresponding, calculate the available path that all nodes are corresponding, the available path that all nodes are corresponding carries out statistical summaries, generates the transmission plane routing table that all nodes are corresponding.While making network manager set up light path, can, with reference to transmitting plane routing table, be created as the light path that power is higher.Be that the network manager light path success rate that adopts transmission plane routing table that system emulation device generates to set up is higher and guarantee light path performance.
What further need to describe is, when the network link information that all nodes are corresponding in all-optical communication network and/or fiber cable network performance parameter change, system emulation device receives following at least any one information: the network link information of the renewal that all nodes that network manager sends are corresponding, and the fiber cable network performance parameter of the renewal of input.Then system emulation device is by the network link information of renewal and/or the fiber cable network performance parameter of renewal, in conjunction with original network link information, fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table after upgrading, and the transmission plane routing table after upgrading is sent to network manager.
Further alternative, system emulation device sends to all nodes in all-optical communication network by the transmission plane routing table transmitting after plane routing table and renewal, so that the transmission plane road of all nodes in all-optical communication network according to transmission plane routing table or after upgrading is by showing to generate effective routing.
The transmission plane routing table that in the present invention, system emulation device generates is mainly used in when network manager is set up light path using, so that the network manager light path higher according to success rate, and it is higher to set up the efficiency of light path.Concrete, as shown in Figure 4, in a kind of implementation of the present invention, providing the another kind of method that generates route, the method specifically comprises:
401, the road construction request that network manager reception sources node sends, road construction request comprises the positional information of source node and the positional information of destination node.
402, network manager utilizes network link information, the fiber cable network performance parameter between source node and destination node to set up light path.
Wherein, the mode that network manager is set up light path has two kinds, specific as follows:
First kind of way: network manager utilizes network link information, the fiber cable network performance parameter between source node and destination node to generate effective routing; Then effective routing and the content transmitting in plane routing table are compared, obtain the first best routed path, adopt the first best routed path to set up light path.
The second way: network manager utilizes network link information, the fiber cable network performance parameter between source node and destination node to generate effective routing; Then effective routing is sent to source node; Source node is according to effective routing and the content transmitting in plane routing table are compared, obtain the second best routed path, and the second best routed path is sent to network manager, wherein the second best routed path can be identical with the first best routed path, or the second best routed path can be not identical with the first best routed path.Network manager adopts the second best routed path to set up light path.Wherein, transmit plane road by tableau format with reference to Fig. 3.
403, network manager sends to all nodes on this light path by the routing information of light path, so that all nodes on this light path carry out the transmission of business by light path.
Wherein, the routing information of light path can comprise the node of port, time slot and process etc.
Be understandable that, when network manager adopts the first best routed path to set up light path, the routing information of the first best routed path is identical with the routing information of light path; When network manager adopts the second best routed path to set up light path, the routing information in secondary route path is identical with the routing information of light path.
Further alternative, when there is inaccessible situation because the information in light networking (network link information and/or fiber cable network performance parameter) changes in the light path of setting up, network manager can, according to transmitting plane routing table, generate the light path that another possesses availability and accessibility fast.Concrete, as shown in Figure 5, in another kind of implementation of the present invention, provide another to generate the method for route, the method specifically comprises:
501, network manager RX path switching request.
Path switching request is that the network manager that is used to indicate that any one node in light path sends is set up the request of protecting light path, path switching request comprises the positional information of source node and the positional information of destination node, and protection light path is used for replacing light path;
502, network manager is according to the content in path switching request, in conjunction with transmitting plane routing table or in conjunction with the transmission plane routing table after upgrading, setting up protection light path.
Wherein, network manager is after RX path switching request; according to transmitting in plane routing table, show in the Route Selection that this source node is corresponding with destination node; know corresponding alternate routing; the higher a kind of route of performance of arranging from high to low according to routing policy selectivity, then adopts wherein a kind of alternate routing of selecting to set up protection light path.Thereby reach, switch fast route.
503, network manager sends to all nodes in protection light path by the routing information of protection light path, so that all nodes carry out the transmission of business by protection light path in protection light path.
Be understandable that, the routing information of protection light path can comprise the node of port, time slot and process etc.
The present invention, when the light path of having set up goes wrong, adopt to transmit the light path that plane routing table can a guaranteed performance of Rapid Establishment, thereby improves when setting up light path success rate, has also improved the efficiency of setting up light path.
As shown in Figure 6, the embodiment of the present invention provides a kind of system emulation device, and this system emulation device comprises: receiver module 601, generation module 602, sending module 603.
Sending module 603, for transmission plane routing table is sent to network manager, so that network manager is used transmission plane, routing table is set up light path.
Further, when the network link information that all nodes are corresponding in all-optical communication network and/or fiber cable network performance parameter change, receiver module 601, also for receiving following at least any one information: the network link information of the renewal that all nodes that network manager sends are corresponding, and the fiber cable network performance parameter of the renewal of input.Then generation module 602 is by the network link information of renewal and/or the fiber cable network performance parameter of renewal, in conjunction with original network link information, fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table after upgrading, and the transmission plane routing table after upgrading is offered to sending module 603.Sending module 603 sends to network manager by the transmission plane routing table after upgrading.
Further alternative, sending module 603, also for sending to the transmission plane routing table after transmission plane routing table and renewal all nodes of all-optical communication network.
It should be noted that, in system shown in Figure 6 simulator, the specific implementation process of its modules and the contents such as information interaction between modules, due to the inventive method embodiment based on same inventive concept, can, referring to embodiment of the method, at this, not repeat one by one.
In implementation of the present invention, adopt system emulation device to generate transmission plane routing table and can improve success rate and the efficiency of setting up light path, and can realize and switch fast alternate routing.
As shown in Figure 7, the embodiment of the present invention provides a kind of network manager, and this network manager comprises: sending module 701, and receiver module 702, generation module 703, obtains module 704, sets up module 705.
Sending module 701, for sending network link information corresponding to all nodes of all-optical communication network to system emulation device, so that system emulation device generates and transmits plane routing table according to this network link information.
After receiver module 702 receives transmission plane routing table, when the network link information that all nodes are corresponding in all-optical communication network and/or fiber cable network performance parameter change, receiver module 702, the transmission plane routing table after the renewal also sending for receiving system simulator.
Further, receiver module 702, the road construction request also sending for reception sources node, road construction request comprises the positional information of source node and the positional information of destination node, and the content in this road construction request is offered to generation module 703.
Wherein, when generation module 703 offers acquisition module 704 by this effective routing, obtain module 704, for effective routing and the content that transmits plane routing table are compared, obtain the first best routed path, and the first best routed path is offered and sets up module 705.Setting up 705 of modules adopts the first best routed path to set up light path.Then sending module 701 sends to all nodes in light path by the routing information of light path, so that all nodes in light path carry out the transmission of business by light path.
When generation module 703 offers sending module 701 by this effective routing, sending module 701 sends to source node by effective routing.Then source node, according to this effective routing in conjunction with transmitting plane routing table, generates the second best routed path, and the second best routed path is sent to receiver module 702.The second best routed path that receiver module 702 reception sources nodes send, wherein the second best routed path is identical with the first best routed path or not identical.Setting up module 705 adopts the second best routed path to set up light path.Then sending module 701 sends to all nodes in light path by the routing information of light path, so that all nodes in light path carry out the transmission of business by light path.
Further alternative; after network manager sends to source node by light path; receiver module 702 RX path switching request; path switching request is that the network manager that is used to indicate that any one node in light path sends is set up the request of protecting light path; path switching request comprises the positional information of source node and the positional information of destination node, and protection light path is used for replacing light path.Set up module 705 according to the content in path switching request, in conjunction with transmitting plane routing table or in conjunction with the transmission plane routing table after upgrading, setting up protection light path.Sending module 701 sends to all nodes in protection light path by the routing information of protection light path, so that all nodes carry out the transmission of business by protection light path in protection light path.
It should be noted that, shown in Fig. 7 in network manager, the specific implementation process of its modules and the contents such as information interaction between modules, due to the inventive method embodiment based on same inventive concept, can, referring to embodiment of the method, at this, not repeat one by one.
In implementation of the present invention, adopt system emulation device to generate transmission plane routing table and can improve success rate and the efficiency that network manager is set up light path, and can realize and switch fast alternate routing.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only the division with above-mentioned each functional module is illustrated, in practical application, can above-mentioned functions be distributed and by different functional modules, completed as required, the internal structure that is about to device is divided into different functional modules, to complete all or part of function described above.The system of foregoing description, the specific works process of device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that, disclosed system, apparatus and method, can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described module or unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.
If the form of SFU software functional unit of usining described integrated unit realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.Understanding based on such, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CDs.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (10)
1. a method that generates route, is characterized in that, comprising:
Network link information corresponding to all nodes in the all-optical communication network that system emulation device receiving network managing device sends;
Described system emulation device receives the fiber cable network performance parameter of input;
Described system emulation device carries out path computing by described network link information in conjunction with described fiber cable network performance parameter, generates the transmission plane routing table that described all nodes are corresponding;
Described system emulation device sends to described network manager by described transmission plane routing table, so that described network manager is used described transmission plane routing table to set up light path.
2. the method for generation route according to claim 1, is characterized in that, when the network link information that all nodes are corresponding in described all-optical communication network and/or described fiber cable network performance parameter change,
Described system emulation device receives following at least any one information: the network link information of the renewal that described all nodes that described network manager sends are corresponding, and the fiber cable network performance parameter of the renewal of input;
Described system emulation device is by the network link information of described renewal and/or the fiber cable network performance parameter of described renewal, in conjunction with original described network link information, described fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table after upgrading;
Described system emulation device sends to described network manager by the transmission plane routing table after described renewal.
3. the method for generation route according to claim 2, is characterized in that, described method also comprises:
Described system emulation device sends to all nodes in described all-optical communication network by the transmission plane routing table after described transmission plane routing table and described renewal.
4. according to the method for the generation route described in any one in claim 1-3, it is characterized in that, described method also comprises:
The road construction request that described network manager reception sources node sends, described road construction request comprises the positional information of source node and the positional information of destination node;
Described network manager utilizes network link information, the fiber cable network performance parameter between described source node and described destination node to generate effective routing;
Described network manager is compared the content in described effective routing and described transmission plane routing table, obtains the first best routed path, adopts described the first best routed path to set up light path;
Described network manager sends to all nodes in described light path by the routing information of described light path, so that all nodes in described light path carry out the transmission of business by described light path.
5. the method for generation route according to claim 4, it is characterized in that, at described network manager, utilize after network link information between described source node and described destination node, fiber cable network performance parameter generate effective routing, described method also comprises:
Described network manager sends to described source node by described effective routing;
Described source node is compared the content in described effective routing and described transmission plane routing table according to described, obtain the second best routed path, and described the second best routed path is sent to described network manager, wherein said the second best routed path is identical or not identical with described the first best routed path;
Described network manager adopts described the second best routed path to set up described light path;
Described network manager sends to all nodes in described light path by the routing information of described light path, so that all nodes in described light path carry out the transmission of business by described light path.
6. the method for generation route according to claim 5, is characterized in that, after described network manager sends to described source node by described light path, described method also comprises:
Described network manager RX path switching request, described path switching request is that the described network manager that is used to indicate that any one node in described light path sends is set up the request of protecting light path, described path switching request comprises the positional information of described source node and the positional information of described destination node, and described protection light path is used for replacing described light path;
Described network manager, according to the content in described path switching request, in conjunction with described transmission plane routing table or in conjunction with the transmission plane routing table after described renewal, is set up described protection light path;
Described network manager sends to all nodes in described protection light path by the routing information of described protection light path, so that all nodes carry out the transmission of business by described protection light path in described protection light path.
7. a system that generates route, is characterized in that, comprising:
System emulation device, network link information corresponding to all nodes of all-optical communication network sending for receiving network managing device; Receive the fiber cable network performance parameter of input; By described network link information, in conjunction with described fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table that described all nodes are corresponding; And described transmission plane routing table is sent to described network manager;
Described network manager, for sending network link information corresponding to all nodes of described all-optical communication network to described system emulation device; And the described transmission plane routing table that receives described system emulation device transmission; Use described transmission plane routing table to set up light path.
8. the system of generation route according to claim 7, is characterized in that, when the network link information that all nodes are corresponding in described all-optical communication network and/or described fiber cable network performance parameter change,
Described system emulation device, also for receiving following at least any one information: the network link information of the renewal that described all nodes that described network manager sends are corresponding, and the fiber cable network performance parameter of the renewal of input; By the network link information of described renewal and/or the fiber cable network performance parameter of described renewal, in conjunction with original described network link information, described fiber cable network performance parameter, carry out path computing, generate the transmission plane routing table after upgrading; Transmission plane routing table after described renewal is sent to described network manager; Transmission plane routing table after described transmission plane routing table and described renewal is sent to described all nodes;
Described network manager, also for sending the network link information of the renewal that described all nodes are corresponding to described system emulation device; And receive the transmission plane routing table after the described renewal that described system emulation device sends.
9. according to the system of the generation route described in claim 7 or 8, it is characterized in that,
Described network manager, the road construction request also sending for reception sources node, described road construction request comprises the positional information of source node and the positional information of destination node; Utilize network link information, fiber cable network performance parameter between described source node and described destination node to generate effective routing; Content in described effective routing and described transmission plane routing table is compared, obtain the first best routed path, adopt described the first best routed path to set up light path; The routing information of described light path is sent to all nodes in described light path, so that all nodes in described light path carry out the transmission of business by described light path; Or described effective routing is sent to described source node; Receive the second best routed path that described source node sends, wherein said the second best routed path is identical or not identical with described the first best routed path; Adopt described the second best routed path to set up described light path; The routing information of described light path is sent to all nodes in described light path.
10. the system of generation route according to claim 9, is characterized in that,
Described network manager, also for RX path switching request, described path switching request is that the described network manager that is used to indicate that any one node in described light path sends is set up the request of protecting light path, described path switching request comprises the positional information of described source node and the positional information of described destination node, and described protection light path is used for replacing described light path; According to the content in described path switching request, in conjunction with described transmission plane routing table or in conjunction with the transmission plane routing table after described renewal, set up described protection light path; The routing information of described protection light path is sent to all nodes in described protection light path, so that all nodes carry out the transmission of business by described protection light path in described protection light path.
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