CN111682898B - Optical transport network evaluation method and device - Google Patents
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Abstract
The invention provides an optical transport network evaluation method and device, relates to the field of communication, and can accurately evaluate the rationality of an optical transport network. The method comprises the following steps: firstly, a first evaluation value is determined according to the number of nodes of an optical transport network and the number of nodes of a core convergence layer, a second evaluation value is determined according to the total number of service nodes and the number of service nodes covered by a convergence ring in the service nodes, and a third evaluation value is determined according to the capacity of a first port and the capacity of a second port. And then, determining that the optical transmission network is qualified according to the first evaluation value, the second evaluation value and the third evaluation value.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for evaluating an optical transport network.
Background
An Optical Transport Network (OTN) is a transport network based on wavelength division multiplexing technology over an optical layer fabric network. If the optical transport network is unreasonable in construction planning or unreasonable in configuration during later use, the optical transport network will be inefficient. At present, the rationality of the optical transmission network can be evaluated by the cost of unit flow, for example, when the cost of unit flow is high, it can indicate that the optical transmission network is unreasonable in construction planning or unreasonable in configuration when used in later period. The cost of the unit flow is determined according to the total construction investment of the optical transport network divided by the traffic carried by the optical transport network, so the high cost of the unit flow is not necessarily caused by technical problems of unreasonable construction planning of the optical transport network or unreasonable configuration during later use, and the like, and may be caused by the overhigh total construction investment of the optical transport network, so the rationality of the optical transport network is not accurately evaluated according to the cost of the unit flow. Therefore, how to accurately evaluate the rationality of the optical transport network is a technical problem which needs to be solved urgently.
Disclosure of Invention
Embodiments of the present invention provide an optical transport network evaluation method and apparatus, which can accurately evaluate the rationality of an optical transport network.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, an optical transport network evaluation method is provided, including: firstly, a first evaluation value is determined according to the number of nodes of an optical transport network and the number of nodes of a core convergence layer, a second evaluation value is determined according to the total number of service nodes and the number of service nodes covered by a convergence ring in the service nodes, and a third evaluation value is determined according to the capacity of a first port and the capacity of a second port. And then, determining that the optical transmission network is qualified according to the first evaluation value, the second evaluation value and the third evaluation value.
The technical scheme provided by the embodiment of the invention judges the rationality of the optical transmission network from the technical indexes, and can clearly and accurately determine whether the optical transmission network is qualified. The evaluation method provided by the embodiment of the invention eliminates the interference of non-technical indexes, such as total construction investment of the optical transmission network, on the evaluation result, so that the rationality of the optical transmission network can be accurately evaluated.
In a second aspect, an optical transport network evaluation apparatus is provided, which includes a processing module and a determining module. The processing module is used for determining a first evaluation value according to the number of the optical transport network nodes and the number of the core convergence layer nodes; the processing module is further used for determining a second evaluation value according to the total number of the service nodes and the number of the service nodes covered by the convergence ring in the service nodes; the processing module is further used for determining a third evaluation value according to the capacity of the first port and the capacity of the second port; and the judging module is used for determining that the optical transmission network is qualified according to the first evaluation value, the second evaluation value and the third evaluation value determined by the processing module.
In a third aspect, an optical transport network evaluation apparatus is provided, which includes a memory, a processor, a bus, and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the optical transport network evaluation apparatus is operating, the processor executes the computer-executable instructions stored in the memory to cause the optical transport network evaluation apparatus to perform the optical transport network evaluation method according to the first aspect.
In a fourth aspect, a computer-readable storage medium is provided, which comprises computer-executable instructions, which, when executed on a computer, cause the computer to perform the method for optical transport network evaluation according to the first aspect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a three-layer network structure according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another three-layer network architecture according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of an evaluation method for an optical transport network according to an embodiment of the present invention;
FIG. 4 is a graph illustrating a relationship between a first evaluation value and a first ratio according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another three-layer network architecture according to an embodiment of the present invention;
fig. 6 is a schematic diagram of another three-layer network architecture according to an embodiment of the present invention;
FIG. 7 is a graph illustrating a relationship between a third evaluation value and a third ratio according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an optical transport network evaluation apparatus according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another optical transport network evaluation apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
It should be noted that, in the embodiments of the present invention, "of", "corresponding" and "corresponding" may be sometimes used in combination, and it should be noted that, when the difference is not emphasized, the intended meaning is consistent.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used for distinguishing the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that the words "first", "second", and the like are not limited in number or execution order.
Three-layer network structure adopts the hierarchical design, divides into three levels with complicated network, and every level has different branch work, and three level of three-layer network structure includes: core layer, convergence layer and access layer. The core layer is a high-speed switching backbone of the network and is used for communicating the whole network. The nodes included in the core layer may be referred to as core nodes.
The convergence layer is a connection layer between the access layer and the core layer, and is used for converging data of the access layer and transmitting the converged data to the core layer so as to reduce the load of core layer network equipment. The nodes comprised by the aggregation layer may be referred to as aggregation nodes.
The access stratum is used to provide an interface to the network device for accessing the network. The nodes comprised by the access stratum may be referred to as access nodes.
The access nodes are connected with the aggregation node in a wired or wireless mode, and the access nodes are sequentially connected in a wired or wireless mode.
The sink nodes are connected with the core nodes in a wired or wireless mode, and the sink nodes are sequentially connected in a wired or wireless mode.
The core nodes are connected in a wired or wireless mode.
Data in the network can be transmitted from the access node to the sink node, and the sink node transmits the converged data to the core node after the data are converged. Or the data is transmitted from the core node to the sink node, and the sink node transmits the data to the corresponding access node according to the destination address of the data.
As shown in the schematic diagram of a three-layer network structure shown in fig. 1, an access node is connected to a sink node in a ring shape, the sink node is connected to a core node in a ring shape, and the core nodes are connected to each other.
The core layer and the convergence layer may be collectively referred to herein as a core convergence layer, i.e., the core convergence layer includes the core layer and the convergence layer, and the core convergence layer nodes include core nodes and convergence nodes.
The present application does not limit the form of nodes in a network employing a three-layer network structure. For example, a node may be a computer room including a plurality of network elements, and for example, a node may be a network element. The network element may be a switch, a router, etc., without limitation.
Taking a node in a network as a specific network element as an example, fig. 2 shows a schematic diagram of a three-layer network architecture with a node as a specific network element. Core layer 210 includes core node 1, core node 2, core node 3, core node 4, core node 5, and core node 6. The sink layer 220 includes sink node 1, sink node 2, sink node 3, sink node 4, sink node 5, sink node 6, and sink node 7. The access stratum 230 includes access node 1, access node 2, access node 3, access node 4, and access node 5. In fig. 2, data of a workstation enters a network through a network access interface provided by an access layer, and then the data is aggregated by an aggregation layer and transmitted to a core layer; or the data of the core layer is transmitted to the access layer through the convergence layer, and then the access layer transmits the data to the workstation.
An optical transport network is a type of network, and refers to a transport network that implements transmission of traffic signals in the optical domain. Since the characteristics of the optical transport network are suitable for transmitting long-distance and large-capacity services, and the long-distance and large-capacity services are generally transmitted on a core convergence layer of the network, the optical transport network is mainly deployed on the core convergence layer of the network. Generally, an optical transport network may be deployed by using part or all of nodes in a core convergence layer, and an optical transport network node may be newly deployed in the core convergence layer in addition to an original core convergence layer node. Understandably, the optical transport network node comprises part or all of the core aggregation layer nodes.
In order to solve the problem that the rationality evaluation of the optical transport network in the prior art is not accurate enough, the application provides an optical transport network evaluation method for evaluating the rationality of the optical transport network according to technical indexes. The method specifically comprises the steps that first, a first evaluation value is determined according to the number of nodes of an optical transport network and the number of nodes of a core convergence layer; determining a second evaluation value according to the total number of the service nodes and the number of the service nodes covered by the convergence ring in the service nodes; determining a third evaluation value according to the first port capacity and the second port capacity; and then, determining that the optical transmission network is qualified according to the first evaluation value, the second evaluation value and the third evaluation value. In the method, a first evaluation value is used for reflecting the contact ratio of the nodes of the optical transport network and the nodes of the core convergence layer, a second evaluation value is used for reflecting the reasonability of the connection between the nodes of the optical transport network, and a third evaluation value is used for reflecting the reasonability of the port configuration of the optical transport network. Therefore, the method provided by the embodiment of the invention judges the rationality of the optical transmission network from the technical indexes, and can clearly and accurately determine whether the optical transmission network is qualified. The evaluation method provided by the embodiment of the invention eliminates the interference of non-technical indexes, such as total construction investment of the optical transmission network, on the evaluation result, so that the rationality of the optical transmission network can be accurately evaluated.
As shown in fig. 3, the method for evaluating an optical transport network according to an embodiment of the present invention includes the following steps.
S301, the calculation center determines a first evaluation value according to the number of the optical transport network nodes and the number of the core convergence layer nodes.
The computing center is deployed on the core layer, and the computing center may be one server or a system composed of a plurality of servers. The calculation center can obtain the number of the optical transport network nodes and the number of the core convergence layer nodes from a database of an operator.
In the optical transport network shown in fig. 2, the process of transmitting data of the workstation 1 to the core node 1 is as follows: firstly, a workstation 1 transmits data to an access node 2 through an interface provided by the access node 2, then the data flow is transmitted to a sink node 2 through the access node 1 or the access node 3, the sink node 2 collects the data uploaded by an access layer, and the collected data is transmitted to a core node 1. Therefore, the higher the coincidence degree of the optical transport network node and the core convergence layer node is, the more the performance advantage of the optical transport network can be embodied in the network adopting the three-layer network structure, the higher the efficiency of the optical transport network for transmitting service data is, and the better the operation effect of the optical transport network is.
In some embodiments, the first ratio may be determined according to the number of optical transport network nodes and the number of core aggregation layer nodes, and then the first ratio may be determined as the first evaluation value.
Specifically, the ratio of the number of nodes in the first set to the number of nodes in the second set may be determined as the first ratio.
The first set is the intersection of a core convergence layer node and an optical transmission network node; the second set is a union set of the core convergence layer node and the optical transport network node. The first ratio satisfies formula (1):
wherein, P1Representing the first ratio, M representing the number of nodes in the first set, and N representing the number of nodes in the second set.
Taking the optical transport network shown in fig. 2 as an example, it is assumed that in the core convergence layer,
the core node 1, the core node 2, the core node 3, the sink node 1, the sink node 2, and the sink node 3 are core sink nodes in which an optical transport network is deployed, the core node 4, the core node 5, the sink node 4, the sink node 5, and the sink node 6 are core sink nodes in which the optical transport network is not deployed, and the core node 6 and the sink node 7 are core sink layer added optical transport network nodes.
The first set is { core node 1, core node 2, core node 3, sink node 1, sink node 2, sink node 3 };
the second set is { core node 1, core node 2, core node 3, core node 4, core node 5, core node 6, sink node 1, sink node 2, sink node 3, sink node 4, sink node 5, sink node 6, sink node 7 }.
If the number of nodes M in the first set is 6 and the number of nodes N in the second set is 13, the first ratio P is 6/13 according to equation (1).
The first ratio 6/13 is determined as a first evaluation value.
In other embodiments, the relationship of the first evaluation value to the first ratio satisfies formula (2):
E1＝A×P1 x (2)；
wherein E is1Indicating the first evaluation value. P1The first ratio is represented, x represents a first amplification parameter, A represents a first weight value, and the value of A can be determined according to the actual situation. Since the number of nodes M in the first set is less than or equal to the number of nodes N in the second set, the first ratio P1Is less than or equal to 1, the first evaluation value E is obtained according to the formula (2)1Less than or equal to the first weight value A.
In practice, the difference of the first ratios of different networks is generally small, and in order to make the first evaluation values of different networks significantly reflect the difference, the first evaluation value may be determined from the power x of the first ratio. Wherein, the value of x can be determined according to the actual situation. For example, when x is 2, the first evaluation values of different optical transport networks may be clearly distinguished.
Fig. 4 shows a relationship between the first evaluation value and the first ratio when a is 40 and x is 2, where the horizontal axis represents the first ratio and the vertical axis represents the first evaluation value. The first evaluation value increases as the first ratio increases. The larger the value of the first ratio is, the higher the coincidence degree of the node of the optical transport network and the node of the core convergence layer is, when the optical transport network and the node of the core convergence layer are completely coincided, the first ratio obtains a maximum value of 1, and at this time, the first evaluation value also obtains a maximum value of 40.
S302, the computing center determines a second evaluation value according to the total number of the service nodes and the number of the service nodes covered by the aggregation ring in the service nodes.
One connection mode of the sink node and the core node may be an annular connection, as shown in fig. 5, a sink ring is formed by the core node 1, the core node 2, the sink node 1, the sink node 2, the sink node 3, and the sink node 4 connected by black thick lines. Different aggregation rings may be used to transmit different services, such as metro network services and core network services, and may also be used to transmit the same services.
The service node is a core node in the core layer for processing the target service.
As shown in fig. 5, the aggregation ring may be configured as an aggregation ring dedicated to transport of core network traffic, and the core node 1 and the core node 2 may be configured as service nodes handling core network traffic.
The rationality problem of the connection between the nodes of the optical transport network is mainly reflected in that the connection mode of the aggregation node and the service node in the aggregation ring is unreasonable.
For example, assuming that the aggregation ring in fig. 5 is used for transmitting core network services, and the service nodes corresponding to the core network services are core node 1 and core node 2, the aggregation ring for transmitting the core network services covers all the service nodes for processing the core network services, and service data transmission between the aggregation nodes in the aggregation ring and the service nodes does not require switching of other core nodes, so that the structure of the aggregation ring is considered reasonable at this time.
If the service node for processing the core network service is changed from the core node 1 and the core node 2 to the core node 2 and the core node 6, the aggregation ring for transmitting the core network service covers only one service node for processing the core network service, i.e., the core node 2. At this time, the service data transmission between the sink node and the service node in the sink ring needs the switching of other core nodes. For example, when the service data in the aggregation ring needs to be transmitted to the core node 6, which is one of the service nodes, the transit needs to be performed through the core node 1. If the service data is transferred by other core nodes in the process of being transmitted from the aggregation node to the service node, the network resources occupied by transmitting the service data are increased. For example, through Optical Transform Unit (OTU) switching, the capacity of a wavelength division port occupied by service data is increased; through cable switching, in addition to occupying the capacity of a wavelength division port, 2-core cables are additionally occupied. Therefore, the structure of the convergence ring is not reasonable at this time.
According to the scheme provided by the invention, the ratio of the number of the service nodes covered by the aggregation ring in the service nodes to the total number of the service nodes is determined as a second ratio, and then a second evaluation value is determined according to the second ratio.
In some embodiments, the second ratio satisfies formula (3):
wherein, P2And representing the second ratio, G representing the number of the service nodes covered by the aggregation ring, and F representing the total number of the service nodes.
The determination method of the second ratio is exemplified below. As shown in fig. 5, in the aggregation ring, the service node is two service nodes, i.e., the core node 1 and the core node 6, i.e., the value of F is 2, and the aggregation ring 1 covers only one of the service nodes, i.e., the value of G is 1, so that the second ratio P of the aggregation ring is2Is 1/2.
The second evaluation value satisfies formula (4):
E2＝B×P2 (4)；
wherein E is2Indicates a second evaluation value, P2And B represents a second ratio, B represents a second weight, and the value of B can be determined according to the actual situation. Since the number of service nodes covered by the aggregation ring, G, is less than or equal to the total number of service nodes, F, P2Less than or equal to 1, the second evaluation value E is obtained according to equation 42Is less than or equal to the second weight value B.
It should be noted that, when the optical transport network includes a plurality of convergence rings, the second evaluation value of the optical transport network may be an average of the second evaluation values of the respective convergence rings.
In other embodiments, the second evaluation value may also be determined according to the structure score table.
The structure of the structure score table is shown in table 1.
TABLE 1
| Serial number | Connection mode | Score of | Evaluation of |
| 1 | 1 service node, 1 aggregation ring covering | 30 | No need of switching, |
| 2 | 1 service node, 0 aggregation ring | 15 | All services need to be switched |
| 3 | 2 service nodes and 2 convergence rings | 30 | The need for switching is eliminated, |
| 4 | 3 service nodes and 1 |
20 | Part of the traffic needs to be switched |
| 5 | 3 service nodes and 3 convergence rings | 30 | No need of switching, |
| 6 | 3 service nodes, 2 convergent ring coverage | 25 | Part of the traffic needs to be switched |
Table 1 only exemplifies 6 possible connection manners, and the actual possible connection manners are not limited to the above 6 connection manners. And the score corresponding to each of the upper links may be different from table 1.
As shown in fig. 6, an optical transport network architecture diagram is shown, where a convergence ring formed by a convergence node 1, a convergence node 2, a convergence node 3, a convergence node 4, a core node 1, and a core node 2 is a first convergence ring. A convergence ring formed by the convergence node 5, the convergence node 6, the convergence node 7, the core node 6, the core node 5 and the core node 4 is a second convergence ring.
It is assumed that the first aggregation ring and the second aggregation ring are both used for carrying metro network traffic, and there are 3 service nodes for processing the metro network traffic, which are core node 1, core node 2, and core node 6, respectively. Then for the first aggregation ring, the first aggregation ring covers 2 of the 3 service nodes, i.e. covers core node 1 and core node 2. As can be seen from table 1, the connection method of the first convergence loop is method 6, and the corresponding score is 25.
For the second aggregation ring, the second aggregation ring covers 1 of the 3 service nodes, i.e., covers the core node 6. As can be seen from table 1, the connection method of the second convergence loop is method 4, and the corresponding score is 20.
The second evaluation value of the optical transport network shown in fig. 6 is an average of the second evaluation value score of the first convergence ring and the second evaluation value score of the second convergence ring of 22.5. The connection of the optical transport network node shown in fig. 6 is less rational. Part of the traffic of the optical transport network shown in fig. 6 needs to be switched.
The problem of low connection reasonableness of the optical transport network nodes may be solved by adjusting the service node to be a core node covered by the aggregation ring, that is, setting the core node covered by the aggregation ring as the service node. For example, for the second aggregation ring, the service node may be changed from core node 1, core node 2, and core node 6 to core node 6 and core node 5. The second aggregation ring now covers all the service nodes.
The data in S302 may be obtained by the computing center from a database of the operator.
And S303, determining a third evaluation value by the calculation center according to the capacity of the first port and the capacity of the second port.
The end-to-end transmission of service data in the optical transport network requires 4 ports, including a receiving port of a service originating node, a transmitting port of the service originating node, a receiving port of a service destination node, and a transmitting port of the service destination node. The service starting node is a starting point for transmitting the service data, and the service destination node is an end point for transmitting the service data. For example, when data is transmitted from an access node to a core node, a service start node is the access node, and a service destination node is the core node; when data is transmitted from the core node to the access node, the service starting node is the core node, and the service destination node is the starting node. The receiving port of the service starting node is used for receiving service data, the sending port of the service starting node is used for sending the service data, the receiving port of the service destination node is used for receiving the service data, and the sending port of the service destination node is used for sending the service data.
If the service data is relayed in the transmission process, the number of ports occupied by the transmission of the service data is increased, and each relay additionally occupies 2 ports. In addition, if electrical layer protection is performed during transmission of service data, the number of ports occupied for transmitting the service data is also increased, for example, if subnet connection protection is performed on a service, two additional ports are added for transmitting the service data.
The port capacity is used to represent the sum of the data flow transmitted by all ports in unit time, and the port number is proportional to the port capacity. According to the method, the number of the ports is embodied according to the capacity of the ports, a third ratio is determined according to the capacity of the first port and the capacity of the second port, and then a third evaluation value is determined according to the third ratio.
Wherein the third ratio satisfies formula (5):
wherein, P3Representing the third ratio, S the first port capacity, and T the second port capacity. The first port capacity is actually configured port capacity of the target service transmitted by the optical transport network. The second port capacity is a target port capacity of the target service transmitted by the optical transport network, that is, a port capacity occupied by the target service without the occurrence of relay and protection. The reason for multiplying the first port capacity by 0.8 is that it is generally considered that the port utilization rate is more reasonable to 80%, no waste is caused, and 20% of port redundancy can also quickly respond to changes in traffic.
The first port capacity is planned during the construction of the optical transport network and is stored in a database of an operator, and the calculation center can acquire the first port capacity from the database of the operator.
Determining a third evaluation value according to the third ratio and the third weight value, wherein the third evaluation value satisfies a formula (6);
wherein E is3Indicates a third evaluation value, P3And the value of C can be determined according to the actual situation, y represents a second amplification parameter, and has the same action as the first amplification parameter x in the formula (2) so that the third evaluation values of different networks can obviously show differences, and the value of y can be determined according to the actual situation. Illustratively, when y is 2, the third evaluation values of different optical transport networks may be clearly distinguished.
Fig. 7 shows a relationship between the third evaluation value and the third ratio when C is 30 and y is 2, the horizontal axis represents the third ratio, and the vertical axis represents the third evaluation value. The third evaluation value decreases as the second ratio increases. The smaller the value of the third ratio is, the closer the capacity of the first port and the capacity of the second port are, and the more reasonable the port configuration is. When the first port capacity is the same as the second port capacity, the third ratio takes the minimum value, and the third evaluation value takes the maximum value 30.
The determination method of the third evaluation value is exemplified below. Let table 2 be the traffic type and traffic rate carried by the optical transport network.
TABLE 2
| Type of service | Traffic rate | Number of service pieces | Whether or not electrical layer protection is required | |
| Metropolitan area network service | 100Gbps | 12 | Whether or not | |
| Core | 10Gbps | 10 | Is that | |
| Large | 10Gbps | 4 | Whether or not |
The capacity of the first port of the optical transport network for transmitting the service can be obtained according to configuration information when the optical transport network is constructed, and it is assumed that the capacity S of the first port obtained by the calculation center from the operator database is 7784 Gbps.
The second port capacity is the sum of the target port capacity of the metropolitan area network service borne by the optical transport network, the target port capacity of the core network service and the target port capacity of the large customer service.
For the metro network service, the port capacity of a single port is the product of the service rate and the number of the services, and since the metro network service is not protected by an electrical layer, the metro network service needs 4 ports, so that the target port capacity is 100Gbps × 12 × 4, which is 4800 Gbps.
For core network services, the port capacity of a single port is the product of the service rate and the number of services, and as the core network services are protected by an electrical layer, the core network services additionally need 2 ports on the basis of 4 ports, so that the target port capacity is 10Gbps × 10 × (4+2) ═ 600 Gbps.
For large customer service, the port capacity of a single port is the product of the service rate and the number of the services, and since the large customer service does not perform electrical layer protection, the large customer service needs 4 ports, and therefore the target port capacity is 10Gbps × 4 × 4 — 160 Gbps.
The sum of the target port capacities of the three services is the second port capacity T, i.e. 4800Gbps +600Gbps +160Gbps ═ 5560 Gbps.
The third ratio of the optical transport network is 1.4 according to the first port capacity 7784Gbps, the second port capacity 5560Gbps and equation (5).
Assuming that the third weight value is 30, the third evaluation value of the optical transport network is 13.5 points according to the third ratio and the formula (6).
S304, the computing center determines that the optical transmission network is qualified according to the first evaluation value, the second evaluation value and the third evaluation value.
Specifically, the total score of the optical transport network may be determined according to a sum of the first evaluation value, the second evaluation value, and the third evaluation value, and when the total score is greater than or equal to a preset threshold, the optical transport network is determined to be qualified, and when the total score is less than the preset threshold, the optical transport network is determined to be unqualified.
Further, in order to make the maximum value of the total score of the optical transport network 100 points, the first weight value, the second weight value, and the third weight value may satisfy formula (7).
A+B+C＝100 (7)；
That is, the sum of the first weight value, the second weight value, and the third weight value is 100.
Referring to fig. 8, an optical transport network evaluating apparatus 80 according to an embodiment of the present invention includes a processing module 81 and a determining module 82. The processing module 81 is connected to the judging module 82.
The processing module 81 is configured to support the optical transport network evaluating apparatus to execute S301, S302, and S303 in the optical transport network evaluating method shown in fig. 3.
The determining module 82 is configured to support the optical transport network evaluating apparatus to execute S304 in the optical transport network evaluating method shown in fig. 3.
Referring to fig. 9, an embodiment of the present invention further provides an optical transport network evaluation apparatus, including a memory 91, a processor 92, a bus 93, and a communication interface 94; the memory 91 is used for storing computer execution instructions, and the processor 92 is connected with the memory 91 through a bus 93; when the optical transport network evaluation apparatus is operating, the processor 92 executes computer-executable instructions stored in the memory 91 to cause the optical transport network evaluation apparatus to perform the method for optical transport network evaluation provided in the above-described embodiments.
In particular implementations, processor 92(92-1 and 92-2) may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 9, for example, as one embodiment. And as an example, the optical transport network evaluation apparatus may include a plurality of processors 92, such as processor 92-1 and processor 92-2 shown in fig. 9. Each of the processors 92 may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). Processor 92 may refer herein to one or more devices, circuits, and/or processing cores that process data (e.g., computer program instructions).
In the present application, the processor 92 is configured to perform the above-mentioned S301-S304.
The memory 91 may be a read-only memory 91 (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these. The memory 91 may be separate and coupled to the processor 92 via a bus 93. The memory 91 may also be integrated with the processor 92.
In this application, the memory 91 is configured to store data in this application, such as the number of optical transport network nodes, the number of core convergence layer nodes, the capacity of the first port, the capacity of the second port, and the like, and store computer execution instructions corresponding to a software program for executing this application. The processor 92 may operate or execute software programs stored in the memory 91 and call data stored in the memory 91.
The communication interface 94, which may be any transceiver or the like, is used for communicating with other devices or communication networks, such as a control system, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 94 may include a receiving unit to implement a receiving function and a transmitting unit to implement a transmitting function.
The bus 93 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extended ISA (enhanced industry standard architecture) bus, or the like. The bus 93 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.
The embodiment of the present invention further provides a computer program, where the computer program may be directly loaded into a memory and contains a software code, and the computer program is loaded and executed by a computer, so as to implement the optical transport network evaluation method provided in the above embodiment.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (18)
1. An optical transport network evaluation method, comprising:
determining a first evaluation value according to the number of nodes of an optical transport network and the number of nodes of a core convergence layer, wherein the first evaluation value is used for reflecting the coincidence degree of the nodes of the optical transport network and the nodes of the core convergence layer, the core convergence layer comprises a core layer and a convergence layer, and the nodes of the core convergence layer comprise the nodes of the core layer and the nodes of the convergence layer;
determining a second evaluation value according to the total number of service nodes and the number of the service nodes covered by a convergence ring in the service nodes, wherein the service nodes are nodes in the core layer for processing target services, and the second evaluation value is used for reflecting the reasonability of the connection between the nodes of the optical transport network;
determining a third evaluation value according to the first port capacity and the second port capacity; the third evaluation value is used for reflecting the reasonability of port configuration of the optical transport network, the first port capacity is the port capacity actually occupied by the optical transport network for transmitting the target service, the second port capacity is the target port capacity of the optical transport network for transmitting the target service, and the first port capacity is larger than or equal to the second port capacity;
and determining whether the optical transport network is qualified or not according to the first evaluation value, the second evaluation value and the third evaluation value.
2. The method of claim 1, wherein determining the first evaluation value according to the number of optical transport network nodes and the number of core aggregation layer nodes comprises:
determining a first ratio according to the number of nodes in a first set and the number of nodes in a second set, wherein the first set is an intersection of the core convergence layer node and the optical transport network node, and the second set is a union of the core convergence layer node and the optical transport network node;
the first ratio is determined as the first evaluation value.
3. The method according to claim 2, wherein the determining the first ratio as the first evaluation value includes:
determining the product of the power N of the first ratio and a first weight value as the first evaluation value; wherein N is a number greater than or equal to 1.
4. The method of claim 3, wherein determining the second evaluation value according to the total number of service nodes and the number of the service nodes covered by the aggregation ring comprises:
determining a second ratio according to the total number of the service nodes and the number of the service nodes covered by the aggregation ring in the service nodes;
and determining the second evaluation value according to the second ratio.
5. The method of claim 4, wherein said determining said second evaluation value from said second ratio comprises;
and determining the second evaluation value according to the second ratio and a second weight value.
6. The method of claim 5, wherein determining a third evaluation value based on the first port capacity and the second port capacity comprises:
determining a third ratio according to the first port capacity and the second port capacity;
and determining the third evaluation value according to the third ratio.
7. The method of claim 6, wherein determining the third evaluation value according to the third ratio comprises:
and determining the third evaluation value according to the third ratio and the third weight value.
8. The method of any of claims 1-7, wherein said determining whether the optical transport network is eligible based on the first, second, and third evaluation values comprises:
determining a total score of the optical transport network according to a sum of the first evaluation value, the second evaluation value and the third evaluation value;
and when the total score is greater than or equal to a preset threshold value, determining that the optical transport network is qualified.
9. An evaluation device of an optical transport network is characterized by comprising a processing module and a judging module;
the processing module is configured to determine a first evaluation value according to the number of nodes of the optical transport network and the number of nodes of the core aggregation layer, where the first evaluation value is used to reflect the overlapping degree of the nodes of the optical transport network and the nodes of the core aggregation layer, the core aggregation layer includes a core layer and an aggregation layer, and the nodes of the core aggregation layer include the nodes of the core layer and the nodes of the aggregation layer;
the processing module is further configured to determine a second evaluation value according to the total number of service nodes and the number of the service nodes covered by the aggregation ring in the service nodes, where the service nodes are nodes in the core layer for processing a target service, and the second evaluation value is used to reflect the rationality of connection between the optical transport network nodes;
the processing module is further used for determining a third evaluation value according to the capacity of the first port and the capacity of the second port; the third evaluation value is used for reflecting the reasonability of port configuration of the optical transport network, the first port capacity is the port capacity actually occupied by the optical transport network for transmitting the target service, the second port capacity is the target port capacity of the optical transport network for transmitting the target service, and the first port capacity is larger than or equal to the second port capacity;
and the judging module is used for determining whether the optical transmission network is qualified or not according to the first evaluation value, the second evaluation value and the third evaluation value determined by the processing module.
10. The apparatus of claim 9, wherein the processing module is specifically configured to:
determining a first ratio according to the number of nodes in a first set and the number of nodes in a second set, wherein the first set is an intersection of the core convergence layer node and the optical transport network node, and the second set is a union of the core convergence layer node and the optical transport network node;
the first ratio is determined as the first evaluation value.
11. The apparatus of claim 10, wherein the processing module is specifically configured to:
determining the product of the power N of the first ratio and a first weight value as the first evaluation value; wherein N is a number greater than or equal to 1.
12. The apparatus of claim 11, wherein the processing module is specifically configured to:
determining a second ratio according to the total number of the service nodes and the number of the service nodes covered by the aggregation ring in the service nodes;
and determining the second evaluation value according to the second ratio.
13. The apparatus of claim 12, wherein the processing module is specifically configured to:
and determining the second evaluation value according to the second ratio and a second weight value.
14. The apparatus of claim 13, wherein the processing module is specifically configured to:
determining a third ratio according to the first port capacity and the second port capacity;
and determining the third evaluation value according to the third ratio.
15. The apparatus of claim 14, wherein the processing module is specifically configured to:
and determining the third evaluation value according to the third ratio and the third weight value.
16. The apparatus according to any one of claims 9 to 15, wherein the determining module is specifically configured to:
determining a total score of the optical transport network according to a sum of the first evaluation value, the second evaluation value and the third evaluation value determined by the processing module;
and when the total score is greater than or equal to a preset threshold value, determining that the optical transport network is qualified.
17. An evaluation device of an optical transport network is characterized by comprising a memory, a processor, a bus and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through the bus; when the optical transport network evaluation apparatus is operating, the processor executes the computer-executable instructions stored in the memory to cause the optical transport network evaluation apparatus to perform the optical transport network evaluation method according to any one of claims 1 to 8.
18. A computer-readable storage medium comprising computer-executable instructions that, when executed on a computer, cause the computer to perform the optical transport network evaluation method of any of claims 1-8.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677286A (en) * | 2008-09-19 | 2010-03-24 | 中国电信股份有限公司 | Optimization method of carrier network |
| CN103378903A (en) * | 2012-04-18 | 2013-10-30 | 北京邮电大学 | Optical network evaluation method |
| CN106656633A (en) * | 2017-02-10 | 2017-05-10 | 国网甘肃省电力公司信息通信公司 | System and method for evaluating transmission performance of electric power backbone OTN |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7577359B2 (en) * | 2004-05-03 | 2009-08-18 | At&T Intellectual Property I, L.P. | System and method for SONET transport optimization (S-TOP) |
| CN109756907A (en) * | 2017-11-07 | 2019-05-14 | 普天信息技术有限公司 | A kind of communication system performance volume test evaluation method, device and equipment |
| CN108616422B (en) * | 2018-04-20 | 2019-06-14 | 中国联合网络通信集团有限公司 | Network capacity appraisal procedure, device and equipment |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677286A (en) * | 2008-09-19 | 2010-03-24 | 中国电信股份有限公司 | Optimization method of carrier network |
| CN103378903A (en) * | 2012-04-18 | 2013-10-30 | 北京邮电大学 | Optical network evaluation method |
| CN106656633A (en) * | 2017-02-10 | 2017-05-10 | 国网甘肃省电力公司信息通信公司 | System and method for evaluating transmission performance of electric power backbone OTN |
Non-Patent Citations (1)
| Title |
|---|
| 本地传送网综合评价指标体系研究;杨锐 等;《邮电设计技术》;20171120;第13-17页 * |
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