阅读说明：本技术 一种中继配置方法、装置、设备及存储介质 (Relay configuration method, device, equipment and storage medium ) 是由 马治民 于 2019-11-25 设计创作，主要内容包括：本申请公开了一种中继配置方法、装置、设备及存储介质。该方法包括：根据所获取的网络拓扑图,确定所述网络拓扑图中子路由对应的群路光放大器信噪比,根据所述子路由对应的群路光放大器信噪比,确定临时路由对应的群路光放大器信噪比,根据所述临时路由对应的群路光放大器信噪比,确定中继的配置范围,以在所述配置范围内根据所述临时路由对应的混合路光放大器信噪比确定用于配置中继的目标业务站点。与现有技术相比,本申请实施例利用群路光放大器信噪比确定中继的配置范围,在配置范围内进一步根据混合路光放大器信噪比确定目标业务站点,在保证业务正常传输的同时,减少了中继的数量,降低了网络成本。(The application discloses a relay configuration method, a relay configuration device, relay configuration equipment and a storage medium. The method comprises the following steps: determining the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topological graph according to the acquired network topological graph, determining the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, determining the configuration range of the relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, and determining the target service site for configuring the relay according to the signal-to-noise ratio of the mixed optical amplifier corresponding to the temporary route in the configuration range. Compared with the prior art, the configuration range of the relay is determined by utilizing the signal-to-noise ratio of the group path optical amplifier, the target service station is further determined according to the signal-to-noise ratio of the mixed path optical amplifier in the configuration range, normal transmission of services is guaranteed, the number of relays is reduced, and network cost is reduced.)

1. A relay configuration method, comprising:

determining the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topological graph according to the obtained network topological graph;

determining the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, wherein the temporary route is determined according to the sub-route;

and determining a configuration range of the relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, and determining a target service site for configuring the relay according to the signal-to-noise ratio of the mixed path optical amplifier corresponding to the temporary route in the configuration range.

2. The method according to claim 1, wherein the determining, according to the obtained network topology map, the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topology map comprises:

determining a service site in the network topology map;

dividing the service routes in the network topological graph by taking adjacent service sites as end points to obtain a sub-route set;

and determining the forward signal-to-noise ratio and the reverse signal-to-noise ratio of the sub-route in the sub-route set as the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route.

3. The method of claim 1, wherein the determining the temporary route from the sub-route comprises:

determining a first site of a service route in the network topology map as a starting site of the temporary route;

sequentially adding the sub-routes into a temporary route set of the temporary routes according to the sequence of the network topology map;

and obtaining the temporary route according to the temporary route set.

4. The method of claim 1, wherein the determining the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route comprises:

determining the forward signal-to-noise ratio of the temporary route according to a forward signal-to-noise ratio calculation formula of the temporary route and the forward signal-to-noise ratios of the sub-routes;

and determining the reverse signal-to-noise ratio of the temporary route according to a temporary route reverse signal-to-noise ratio calculation formula and the reverse signal-to-noise ratios of the sub-routes.

5. The method of claim 4, wherein the temporary route forward SNR is calculated by:

wherein, OSNR_AFor the forward signal-to-noise ratio of the current temporary route, alpha and beta are constants, M is the wavelength of the service route in the network topological graph, and OSNR_AiFor the forward signal-to-noise ratio, OSNR, of the sub-route_A-1Forward snr for previous temporary route;

the temporary routing reverse signal-to-noise ratio calculation formula is as follows:

wherein, OSNR_BFor reverse signal-to-noise ratio, OSNR, of the current temporary route_BiFor reverse signal-to-noise ratio, OSNR, of sub-routes_B-1The reverse snr for the previous temporary route.

6. The method of claim 1, wherein the determining the configuration range of the relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route comprises:

if the signal-to-noise ratio of the group optical amplifier of the current temporary route meets a first preset condition, determining the configuration range of the relay according to the service station contained in the current temporary route; otherwise, the service site contained in the network topological graph is used as a relay configuration range;

the first preset condition is that the forward signal-to-noise ratio of the current temporary route is smaller than a forward signal-to-noise ratio threshold value and/or the reverse signal-to-noise ratio of the current temporary route is smaller than a reverse signal-to-noise ratio threshold value.

7. The method according to claim 1, wherein the determining, within the configuration range, a target service site for configuring the relay according to a signal-to-noise ratio of a hybrid optical amplifier corresponding to the temporary route includes:

if the signal-to-noise ratio of the group optical amplifier of the current temporary route in the configuration range meets a first preset condition and the temporary route set corresponding to the current temporary route meets a second preset condition, deleting the last sub-route in the current temporary route set to obtain a new temporary route;

if the signal-to-noise ratio of the mixed optical amplifier of the new temporary route meets a third preset condition, determining the end point of the new temporary route as a target service site;

and taking the target service site as an initial site, and repeatedly executing the processes of temporary routing and determining the target service site until the end point of the service routing in the network topological graph is reached.

8. A relay configuration apparatus, comprising:

the sub-route signal-to-noise ratio determining module is used for determining the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topological graph according to the obtained network topological graph;

a temporary route signal-to-noise ratio determining module, configured to determine, according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, where the temporary route is determined according to the sub-route;

and the target service site determining module is used for determining a configuration range of the relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, so as to determine a target service site for configuring the relay according to the signal-to-noise ratio of the mixed optical amplifier corresponding to the temporary route in the configuration range.

9. An apparatus, comprising:

one or more processors;

a memory for storing one or more programs;

the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the relay configuration method of any of claims 1-7.

10. A storage medium having stored thereon a computer program, characterized in that the program, when being executed by a processor, is adapted to carry out the relay configuration method according to any of claims 1-7.

Technical Field

The embodiment of the application relates to the technical field of optical communication, in particular to a relay configuration method, a relay configuration device, relay configuration equipment and a storage medium.

Background

In the field of optical communication, with the development of WDM (Wavelength Division Multiplexing) optical networks, WDM networks carry more and more services, and more service sites have requirements for services in multiple directions. In order to realize the up-down and deployment of multi-direction services at the site, a large number of single boards and optical amplifiers with the functions of routing or multiplexing and demultiplexing are introduced, and the optical amplifiers are used for compensating the insertion loss of the single boards, but noise is also introduced.

The transmission performance between service sites of a WDM network has an important influence on the planning and construction of the network, and under a specific transmission performance limit, OSNR (Optical Signal to Noise Ratio) is an important index for measuring the transmission performance. An optical module selected for a certain service in a WDM system has an OSNR tolerance, that is, the lowest OSNR of a service signal can be successfully analyzed at a service receiving end, and when the OSNR of the received service signal is lower than the OSNR tolerance, the receiving end cannot correctly analyze the service signal, so that the service cannot be normally transmitted. The method for solving the problem may be to set a relay on the service site so that the OSNR value of the service receiving end is increased to be higher than the OSNR tolerance value.

Although the traditional relay configuration mode can ensure that the OSNR value of the service receiving end is greater than the OSNR tolerance value, the number of configured relays is large, and the network cost is increased.

Content of application

The embodiment of the application provides a relay configuration method, a relay configuration device and a storage medium, so that the configuration number of relays is reduced, and the network cost is saved.

In a first aspect, an embodiment of the present application provides a relay configuration method, including:

determining the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topological graph according to the obtained network topological graph;

determining the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, wherein the temporary route is determined according to the sub-route;

and determining a configuration range of the relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, and determining a target service site for configuring the relay according to the signal-to-noise ratio of the mixed path optical amplifier corresponding to the temporary route in the configuration range.

In a second aspect, an embodiment of the present application further provides a relay configuration apparatus, including:

the sub-route signal-to-noise ratio determining module is used for determining the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topological graph according to the obtained network topological graph;

a temporary route signal-to-noise ratio determining module, configured to determine, according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, where the temporary route is determined according to the sub-route;

and the target service site determining module is used for determining a configuration range of the relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, so as to determine a target service site for configuring the relay according to the signal-to-noise ratio of the mixed optical amplifier corresponding to the temporary route in the configuration range.

In a third aspect, an embodiment of the present application further provides an apparatus, including:

one or more processors;

a memory for storing one or more programs;

the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the relay configuration method as described in the first aspect.

In a fourth aspect, the present application further provides a storage medium, on which a computer program is stored, where the program is executed by a processor to implement the relay configuration method according to the first aspect.

The embodiment of the application provides a relay configuration method, a device, equipment and a storage medium, wherein according to an acquired network topology map, a signal-to-noise ratio of a group optical amplifier corresponding to a sub-route in the network topology map is determined, according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, the signal-to-noise ratio of the group optical amplifier corresponding to a temporary route is determined, according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, a configuration range of a relay is determined, and a target service site for configuring the relay is determined according to the signal-to-noise ratio of a mixed path optical amplifier corresponding to the temporary route in the configuration range. Compared with the prior art, the configuration range of the relay is determined by utilizing the signal-to-noise ratio of the group path optical amplifier, the target service station is further determined according to the signal-to-noise ratio of the mixed path optical amplifier in the configuration range, normal transmission of services is guaranteed, the number of relays is reduced, and network cost is reduced.

Drawings

Fig. 1 is a flowchart illustrating a relay configuration method according to an embodiment of the present application;

fig. 2 is a schematic diagram of a network topology provided in an embodiment of the present application;

fig. 3 is a flowchart illustrating another relay configuration method according to an embodiment of the present application;

fig. 4 is a flowchart illustrating another relay configuration method according to an embodiment of the present application;

fig. 5 is a structural diagram of a relay configuration apparatus according to an embodiment of the present application;

fig. 6 is a block diagram of an apparatus according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. In addition, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 1 is a flowchart of a relay configuration method in an embodiment of the present application, where the present embodiment is applicable to a situation where normal service transmission is guaranteed by configuring a relay, and the method may be executed by a relay configuration device, where the relay configuration device may be implemented in a software and/or hardware manner and may be configured in a device such as a notebook computer and a palm computer, and referring to fig. 1, the method may include the following steps:

s110, determining the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topological graph according to the obtained network topological graph.

Optionally, a network topology diagram according to this embodiment is shown in fig. 2, and the network topology diagram indicates that an operating path of a service is 001 to 009, where 001, 003, 004, 005, 006, 008, and 009 are service sites, 001 and 009 are a sending site and a receiving site of the service, respectively, 002 and 007 are OLA (Optical Line Amplifier) sites, that is, non-service sites, and the service sites 003, 004, 005, 006, and 008 are sites where relays can be configured, and the non-service sites 002 and 007 are sites where relays cannot be configured. The traffic route in the network topology is 001- (002) -003-004-006- (007) -008-009.

The sub-routes are formed by connecting adjacent or nearest service sites as end points in the network topology, and referring to FIG. 2, the sub-routes are 001- (002) -003, 003-004, 004-005, 005-006, 006- (007) -008 and 008-009, respectively. Taking sub-route 001- (002) -003 as an example, since 002 is a non-traffic site and 003 is a traffic site closest to traffic site 001, 002 and 003 are connected to form a sub-route. The sub-route 006- (007) -008 is also similar.

The optical amplifier is used for improving the power of a service signal in the optical transmission process, and can be divided into a group optical amplifier and an upper and lower path optical amplifier according to the position of the optical amplifier in a transmission structure, wherein the group optical amplifier is an optical amplifier which is passed by subsequent optical fiber transmission of a certain site, and the upper and lower path optical amplifier is an amplifier which is passed by the upper and lower path services of the certain site. The signal-to-noise ratio is the ratio of the traffic signal to the noise, wherein the noise is generated by the optical amplifier. The signal-to-noise ratio of the group optical amplifier is the ratio of the traffic signal to the noise generated by the group optical amplifier.

S120, determining the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route.

Wherein the temporary route is determined from the sub-routes. The temporary route takes the initial site of the traffic route as an initial site and comprises at least one sub-route. Referring to FIG. 2, the temporary routes can be 001- (002) -003, 001- (002) -003-. The signal-to-noise ratio of the group optical amplifier corresponding to the temporary route can be determined according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route.

Specifically, if the temporary route only includes one sub-route, the snr of the group optical amplifier corresponding to the temporary route is the same as the snr of the group optical amplifier corresponding to the sub-route, for example, the snr of the group optical amplifier corresponding to the temporary route 001- (002) -003 is the same as the snr of the group optical amplifier corresponding to the sub-route 001- (002) -003. If the temporary route includes at least two sub-routes, the signal-to-noise ratio of the group optical amplifier corresponding to the current temporary route can be determined by combining the newly introduced sub-route on the basis of the signal-to-noise ratio of the group optical amplifier corresponding to the previous temporary route, for example, the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route 001- (002) -003-.

S130, determining a configuration range of the relay according to the signal-to-noise ratio of the group path optical amplifier corresponding to the temporary route, and determining a target service site for configuring the relay according to the signal-to-noise ratio of the mixed path optical amplifier corresponding to the temporary route in the configuration range.

In order to improve the accuracy of the relay configuration and reduce the number of relays, in an alternative embodiment, the configuration range of the relays is determined according to the signal-to-noise ratio of the group optical amplifier of the temporary route, and then the target service site is further determined according to the signal-to-noise ratio of the mixed-path optical amplifier within the configuration range. The mixed-path optical amplifier comprises a group-path optical amplifier and an upper-path optical amplifier, and the signal-to-noise ratio of the mixed-path optical amplifier is the ratio of the service signal to the noise generated by the group-path optical amplifier and the upper-path optical amplifier. Of course, the configuration range for relaying may be directly determined according to the signal-to-noise ratio of the optical amplifier in the hybrid path, and then the target service site may be further determined according to the signal-to-noise ratio of the optical amplifier in the hybrid path within the configuration range. The target service site can also be determined only according to the signal-to-noise ratio of the upstream and downstream optical amplifiers or the signal-to-noise ratio of the group optical amplifier.

Optionally, the snr of the group amplifiers of the temporary route may be determined according to a certain sequence, and if the snr of the group amplifiers of one temporary route is smaller than the snr tolerance corresponding to the service transmission, the service site included in the temporary route is used as the configuration range of the relay. And then deleting the last sub-route in the temporary route to obtain a new temporary route, and if the signal-to-noise ratio of the hybrid optical amplifier of the new temporary route is greater than the signal-to-noise ratio tolerance value, determining the end point of the new temporary route as a target service site. Wherein the new temporary route has one less sub-route than the temporary route.

Illustratively, referring to FIG. 2, if the S/N ratio of the group optical amplifiers of the temporary routes 001- (002) -003-, 001- (002) -003-004-, 005-and 01- (002) -003-004-005-006 is determined to be greater than the S/N tolerance, but the S/N ratio of the group optical amplifiers of the temporary routes 001- (002) -003-004-005-006- (007) -008 is determined to be less than the S/N tolerance, the configuration ranges of the relays are determined to be the service sites 003, 004, 005, 006 and 008. If the signal-to-noise ratio of the hybrid optical amplifier corresponding to the new temporary route 01- (002) -003-. The signal-to-noise ratio tolerance value can be set according to actual needs.

The embodiment of the application provides a relay configuration method, which includes the steps of determining a signal-to-noise ratio of a group optical amplifier corresponding to a sub-route in a network topology map according to the obtained network topology map, determining a signal-to-noise ratio of a group optical amplifier corresponding to a temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, determining a configuration range of a relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, and determining a target service site for configuring the relay according to the signal-to-noise ratio of a mixed optical amplifier corresponding to the temporary route in the configuration range. Compared with the prior art, the configuration range of the relay is determined by utilizing the signal-to-noise ratio of the group path optical amplifier, the target service station is further determined according to the signal-to-noise ratio of the mixed path optical amplifier in the configuration range, normal transmission of the service is guaranteed, the number of the relays is reduced, and network cost is reduced.

Fig. 3 is a flowchart illustrating another relay configuration method according to an embodiment of the present application.

S310, determining the service site in the network topological graph.

Referring to fig. 2, traffic stations are 001, 003, 004, 005, 006, 008, and 009, which may all configure relays.

S320, dividing the service routes in the network topological graph by taking the adjacent service sites as end points to obtain a sub-route set.

Optionally, in the embodiment, the adjacent service sites are used as endpoints, and the service routes 001- (002) -003-. It should be noted that the neighbors described in the embodiments include direct neighbors such as business site 003 and business site 004, and indirect neighbors such as business site 001 and business site 003.

S330, determining the forward signal-to-noise ratio and the reverse signal-to-noise ratio of the sub-routes in the sub-route set as the signal-to-noise ratio of the group optical amplifier corresponding to the sub-routes.

The signal-to-noise ratio of the group optical amplifier can be divided into a forward signal-to-noise ratio and a reverse signal-to-noise ratio according to the sequence of the service route, for example, the sequence from the starting point to the end point of the service route is forward, and the sequence from the end point to the starting point is reverse. The determination process of the forward snr and the reverse snr of the sub-route can refer to the prior art, and is not described herein again.

S340, determining the forward signal-to-noise ratio of the temporary route according to a temporary route forward signal-to-noise ratio calculation formula and the forward signal-to-noise ratios of the sub-routes.

Optionally, the process of determining the temporary route is as follows:

determining a first site of a service route in the network topology map as a starting site of the temporary route;

sequentially adding the sub-routes into a temporary route set of the temporary routes according to the sequence of the network topology map;

and obtaining the temporary route according to the temporary route set.

Referring to fig. 2, the first site of the service route is service site 001, the service site is used as the starting site of the temporary route, and the subsequent sub-routes are sequentially added to the temporary route set of the temporary route backward along the first site to obtain the temporary route. The first temporary route is 001- (002) -003, the corresponding temporary route set is [001- (002) -003], and on this basis, the sub-routes 003-. And after the temporary route is determined, the forward signal-to-noise ratio and the reverse signal-to-noise ratio of each temporary route are obtained according to the forward signal-to-noise ratio and the reverse signal-to-noise ratio of the sub-routes in combination with a forward signal-to-noise ratio calculation formula and a reverse signal-to-noise ratio calculation formula of the temporary route.

Optionally, the calculation formula of the forward snr of the temporary route is:

wherein, OSNR_AFor the forward signal-to-noise ratio of the current temporary route, alpha and beta are constants, M is the wavelength of the service route in the network topological graph, and OSNR_AiFor the forward signal-to-noise ratio, OSNR, of the sub-route_A-1The forward snr of the previous temporary route. For ease of description, embodiments will label the forward signal-to-noise ratio of the temporary route as OSNR_AAnd the inverse signal-to-noise ratio is denoted as OSNR_BAnd the forward signal-to-noise ratio of the sub-route is recorded as OSNR_AiAnd the inverse signal-to-noise ratio is denoted as OSNR_BiI denotes the ith sub-route, refer to FIG. 2, OSNR_A2Indicating the forward snr of the second sub-route 003-004. Optionally, α is 58 and β is 10 in the above formula.

According to the formula, the forward signal-to-noise ratio of the current temporary route can be obtained by combining the forward signal-to-noise ratio of the newly added sub-route on the basis of the forward signal-to-noise ratio of the previous temporary route, and the calculation efficiency is improved.

S350, determining the reverse signal-to-noise ratio of the temporary route according to a temporary route reverse signal-to-noise ratio calculation formula and the reverse signal-to-noise ratio of the sub-route.

Optionally, the temporary routing reverse signal-to-noise ratio calculation formula is:

wherein, OSNR_BFor reverse signal-to-noise ratio, OSNR, of the current temporary route_BiFor reverse signal-to-noise ratio, OSNR, of sub-routes_B-1The reverse snr for the previous temporary route. Similar to the forward signal-to-noise ratio process, the reverse signal-to-noise ratio of the current temporary route can be quickly determined through the formula, and the calculation efficiency is improved. Optionally, α is 58 and β is 10 in the above formula.

S360, determining a configuration range of the relay according to the signal-to-noise ratio of the group path optical amplifier corresponding to the temporary route, and determining a target service site for configuring the relay according to the signal-to-noise ratio of the mixed path optical amplifier corresponding to the temporary route in the configuration range.

The embodiment of the application divides the service route to obtain at least one sub-route on the basis of the embodiment, and obtains the forward signal-to-noise ratio and the reverse signal-to-noise ratio of the temporary route by combining the temporary route forward signal-to-noise ratio calculation formula and the temporary route reverse signal-to-noise ratio calculation formula according to the forward signal-to-noise ratio and the reverse signal-to-noise ratio of the sub-route, so that the network cost is reduced and the calculation efficiency is considered at the same time.

Fig. 4 is a flowchart illustrating another relay configuration method according to an embodiment of the present application.

S410, according to the obtained network topological graph, determining the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topological graph.

S420, determining the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route.

S430, if the signal-to-noise ratio of the group optical amplifier of the current temporary route meets a first preset condition, determining the configuration range of the relay according to the service station contained in the current temporary route; otherwise, the service site included in the network topology map is used as the configuration range of the relay.

The first preset condition is that the forward signal-to-noise ratio of the current temporary route is smaller than a forward signal-to-noise ratio threshold value and/or the reverse signal-to-noise ratio of the current temporary route is smaller than a reverse signal-to-noise ratio threshold value. For the determination process of the forward snr and the reverse snr of the temporary route, reference may be made to the foregoing embodiments, and details are not described herein. Optionally, the forward snr threshold and the reverse snr threshold in the embodiment are both 24 dB. Specifically, according to the sequence of the service route, a forward signal-to-noise ratio and a reverse signal-to-noise ratio of the temporary route are sequentially determined, and if the forward signal-to-noise ratio of a certain temporary route is smaller than a forward signal-to-noise ratio threshold, or the reverse signal-to-noise ratio is smaller than a reverse signal-to-noise ratio threshold, or the forward signal-to-noise ratio is smaller than the forward signal-to-noise ratio threshold, and the reverse signal-to-noise ratio is smaller than the reverse signal-to-noise ratio threshold. And if the forward signal-to-noise ratio and the reverse signal-to-noise ratio of the temporary route contained in the network topological graph are both greater than the corresponding forward signal-to-noise ratio threshold and the corresponding reverse signal-to-noise ratio threshold, taking the end point of the service route as the configuration range of the relay.

S440, if the signal-to-noise ratio of the group optical amplifier of the current temporary route in the configuration range meets a first preset condition and the temporary route set corresponding to the current temporary route meets a second preset condition, deleting the last sub-route in the current temporary route set to obtain a new temporary route.

Optionally, the first preset condition is that a forward signal-to-noise ratio of the current temporary route is smaller than a forward signal-to-noise ratio threshold, or a reverse signal-to-noise ratio of the current temporary route is smaller than a reverse signal-to-noise ratio threshold. The second preset condition is that the number of sub-routes in the current temporary route set is two or more. Optionally, the forward snr threshold is the same as the reverse snr threshold, both 24 dB. It should be noted that the current temporary route in S440 is a temporary route with a certain configuration range, for example, if the forward signal-to-noise ratio of the temporary route 001- (002) -003-004-005-006 is smaller than the forward signal-to-noise ratio threshold, the temporary route is recorded as the current temporary route. Specifically, if the signal-to-noise ratio of the group optical amplifier of the current temporary route meets a first preset condition and the temporary route set corresponding to the current temporary route meets a second preset condition, deleting the last sub-route in the current temporary route to obtain a new temporary route.

Illustratively, for the temporary route 001- (002) -003-.

S450, if the signal-to-noise ratio of the mixed-path optical amplifier of the new temporary route meets a third preset condition, determining the end point of the new temporary route as a target service site.

Optionally, the third preset condition is that a forward signal-to-noise ratio of a new temporary route for calculating noise introduced by the trunk optical amplifier and the add-drop optical amplifier is greater than a forward signal-to-noise ratio threshold, and a reverse signal-to-noise ratio of the new temporary route is greater than a reverse signal-to-noise ratio threshold. For convenience of description, the embodiment sets the forward and reverse signal-to-noise ratios as OSNR according to the direction respectively, considering other OSNR costs of the forward and reverse directions_A' and OSNR_B', among other things, other OSNR costs include system margin, power fluctuation cost, EDFA (Erbium-doped Fiber Amplifier) gain unevenness cost, non-linearity cost, filtering cost, and so on. Illustratively, the OSNR is calculated for the new temporary route 001- (002) -003-_A' and OSNR_B' is 24.05dB, which is greater than the corresponding threshold, and the service station 005 is determined as the target service station, assuming that other transmission constraints of the new temporary route have been satisfied, where the other transmission constraints include but are not limited to constraints of parameters such as PMD (Polarization Mode Dispersion), residual Dispersion, and the like.

And S460, taking the target service site as an initial site, and repeatedly executing the temporary routing and the determination process of the target service site until the end point of the service routing in the network topological graph is reached.

After the target service site is determined, the target service site is taken as an initial site, sub-routes are sequentially determined backwards along the route, then a temporary route is determined according to the sub-routes until the end point of the service route in the network topological graph is reached, and the determining process is similar to the determining process with the initial site of the service route as the initial site. Illustratively, the destination service site is 005, and with this site as the starting site, the sub-routes 005-.

According to the embodiment of the application, when the relay is configured, the configuration range of the relay is determined firstly through the signal-to-noise ratio of the group path optical amplifier, and then the target service station is determined in the configuration range further according to the signal-to-noise ratio of the mixed path optical amplifier, so that the number of relays is reduced and the network cost is reduced while the normal transmission of the service is ensured.

The following describes a specific procedure of relay configuration by a specific example.

The forward and reverse signal-to-noise ratio thresholds are assumed to be 24dB each. Referring to FIG. 2, the traffic route is divided by using the traffic site 001 and the traffic site 009 as the forward starting point and the end point of the traffic route, respectively, to obtain the sub-route set [001- (002) -003, 003-]Under the condition of only considering the noise introduced by the group optical amplifier, the signal-to-noise ratio of the positive direction and the negative direction of each sub-route, namely OSNR (optical signal to noise ratio) is calculated_AiAnd OSNR_BiAgainst the set of sub-routes OSNR_Ai/OSNR_BiRespectively [30.18/30.18dB, 30.98/30.98dB, 30.98/30.16dB, 30.16/30.98dB, 30.18/30.18dB and 30.98/30.98dB]。

Taking the initial site 001 of the service route as the initial site of the temporary route, and adding the first sub-route 001- (002) -003 into the temporary route set [001- (002) -003] backwards along the route]Obtaining a first temporary route 001- (002) -003, wherein the temporary route set only comprises one sub-route, thereby obtaining the forward and reverse signal-to-noise ratio OSNR of the temporary route_A/OSNR_BAre respectively 30.18dB/30.18 dB. On the basis, the second sub-route 003-]Thereby obtaining a second temporary route 001- (002) -003-004, the temporary route comprises two sub-routes, and the forward and reverse signal-to-noise ratios OSNR of the temporary route is obtained according to the above formula (1) and formula (2)_A/OSNR_B27.55dB/27.55dB, respectively. By analogy, the third temporary route 001- (002) -003-_A/OSNR_B25.92dB/25.65dB, the fourth temporary route 001- (002) -003-_A/OSNR_B24.54dB/24.53dB, the fifth temporary route 001- (002) -003-004-005-006- (007-008) and the forward and reverse signal-to-noise ratio OSNR of the temporary route_A/OSNR_B23.49dB/23.49dB, respectively.

Since the forward and reverse SNR of the fifth temporary route 001- (002) -003-_A’/OSNR_B' 22.02dB/22.02dB, less than 24dB, delete the last sub-route 005-_A’/OSNR_B' 24.05dB/24.05dB, respectively, greater than 24dB, and assuming that other transmission limitation conditions of the temporary route are satisfied, determining the service station 005 as a target service station for configuring the relay.

Taking the service site 005 as the initial site, new temporary routes 005-_A/OSNR_B30.16dB/30.98dB, 27.16dB/27.55dB and 25.65dB/25.92dB respectively, which are all larger than 24dB, the temporary route 005-_A’/OSNR_B' respectively 24.62dB/24.05dB, and all are more than 24dB, thenAnd exiting the searching process of the relay. In summary, the target service site for configuring the relay in the network topology map may be determined to be 005.

Conventionally, the target service site is determined according to the SNR of the mixed-path optical amplifier, for example, the forward and reverse SNR of the temporary route 001- (002) -003 are 25.42dB/26.51dB respectively, the forward and reverse SNR of the temporary route 001- (002) -003-004 are 23.65dB/23.65dB and 23.65<24 respectively, so that the relay is configured at the service site 003, and then the temporary route 003-004, 003-004-006 is configured with 003-003 dB/25.66dB, 26.51dB/26.2dB and 23.49dB/23.49dB respectively, and 23.49<24, so that the relay is configured at the site 005, and the relay is configured with the site 005 as the starting site, and the temporary route 005-006- (007) -008-007, The forward and reverse SNR of 005-. The resulting stations that need to configure relays are 003 and 005. As can be seen, compared with the conventional method, the number of relays that need to be configured is smaller, and the network cost is reduced.

Fig. 5 is a block diagram of a relay configuration apparatus according to an embodiment of the present application. The apparatus may perform the relay configuration method provided in the foregoing embodiment, and specifically, the apparatus includes:

a sub-route signal-to-noise ratio determining module 510, configured to determine, according to the obtained network topology map, a signal-to-noise ratio of the group optical amplifier corresponding to the sub-route in the network topology map;

a temporary route signal-to-noise ratio determining module 520, configured to determine, according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, where the temporary route is determined according to the sub-route;

a destination service site determining module 530, configured to determine a configuration range of the relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, so as to determine a destination service site for configuring the relay according to the signal-to-noise ratio of the hybrid optical amplifier corresponding to the temporary route within the configuration range.

The embodiment of the application provides a relay configuration device, which determines a signal-to-noise ratio of a group optical amplifier corresponding to a sub-route in a network topology map according to an acquired network topology map, determines a signal-to-noise ratio of a group optical amplifier corresponding to a temporary route according to the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route, determines a configuration range of a relay according to the signal-to-noise ratio of the group optical amplifier corresponding to the temporary route, and determines a target service site for configuring the relay according to the signal-to-noise ratio of a mixed optical amplifier corresponding to the temporary route in the configuration range. Compared with the prior art, the configuration range of the relay is determined by utilizing the signal-to-noise ratio of the group path optical amplifier, the target service station is further determined according to the signal-to-noise ratio of the mixed path optical amplifier in the configuration range, normal transmission of services is guaranteed, the number of relays is reduced, and network cost is reduced.

On the basis of the foregoing embodiment, the sub-route signal-to-noise ratio determining module 510 is specifically configured to:

determining a service site in the network topology map;

dividing the service routes in the network topological graph by taking adjacent service sites as end points to obtain a sub-route set;

and determining the forward signal-to-noise ratio and the reverse signal-to-noise ratio of the sub-route in the sub-route set as the signal-to-noise ratio of the group optical amplifier corresponding to the sub-route.

On the basis of the above embodiment, the determining the temporary route according to the sub-route includes:

determining a first site of a service route in the network topology map as a starting site of the temporary route;

sequentially adding the sub-routes into a temporary route set of the temporary routes according to the sequence of the network topology map;

and obtaining the temporary route according to the temporary route set.

On the basis of the foregoing embodiment, the temporary routing snr determining module 520 is specifically configured to:

determining the forward signal-to-noise ratio of the temporary route according to a forward signal-to-noise ratio calculation formula of the temporary route and the forward signal-to-noise ratios of the sub-routes;

and determining the reverse signal-to-noise ratio of the temporary route according to a temporary route reverse signal-to-noise ratio calculation formula and the reverse signal-to-noise ratios of the sub-routes.

On the basis of the above embodiment, the calculation formula of the forward snr of the temporary route is as follows:

wherein, OSNR_AFor the forward signal-to-noise ratio of the current temporary route, alpha and beta are constants, M is the wavelength of the service route in the network topological graph, and OSNR_AiFor the forward signal-to-noise ratio, OSNR, of the sub-route_A-1Forward snr for previous temporary route;

the temporary routing reverse signal-to-noise ratio calculation formula is as follows:

wherein, OSNR_BFor reverse signal-to-noise ratio, OSNR, of the current temporary route_BiFor reverse signal-to-noise ratio, OSNR, of sub-routes_B-1The reverse snr for the previous temporary route.

On the basis of the foregoing embodiment, the target service site determining module 530 is specifically configured to:

if the signal-to-noise ratio of the group optical amplifier of the current temporary route meets a first preset condition, determining the configuration range of the relay according to the service station contained in the current temporary route; otherwise, the service site contained in the network topological graph is used as a relay configuration range;

the first preset condition is that the forward signal-to-noise ratio of the current temporary route is smaller than a forward signal-to-noise ratio threshold value and/or the reverse signal-to-noise ratio of the current temporary route is smaller than a reverse signal-to-noise ratio threshold value.

On the basis of the foregoing embodiment, the determining, in the configuration range, a target service site for configuring a relay according to a signal-to-noise ratio of a hybrid optical amplifier corresponding to the temporary route includes:

if the signal-to-noise ratio of the group optical amplifier of the current temporary route in the configuration range meets a first preset condition and the temporary route set corresponding to the current temporary route meets a second preset condition, deleting the last sub-route in the current temporary route set to obtain a new temporary route;

if the signal-to-noise ratio of the mixed optical amplifier of the new temporary route meets a third preset condition, determining the end point of the new temporary route as a target service site;

and taking the target service site as an initial site, and repeatedly executing the processes of temporary routing and determining the target service site until the end point of the service routing in the network topological graph is reached.

The relay configuration device provided by the embodiment of the application can execute the relay configuration method provided by the embodiment of the application, and has corresponding functional modules and beneficial effects of the execution method.

Fig. 6 is a block diagram of an apparatus according to an embodiment of the present application.

Referring to fig. 6, the apparatus includes: the number of the processors 610 in the device may be one or more, one processor 610 is taken as an example in fig. 6, the processor 610, the memory 620, the input device 630 and the output device 640 in the device may be connected by a bus or in other manners, and the processor 610, the memory 620, the input device 630 and the output device 640 in the device are taken as an example in fig. 6.

The memory 620 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the relay configuration method in the embodiment of the present application. The processor 610 executes various functional applications and data processing of the device by executing software programs, instructions and modules stored in the memory 620, that is, implements the relay configuration method of the above-described embodiment.

The memory 620 mainly includes a storage program area and a storage data area, wherein the storage program area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 620 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 620 can further include memory located remotely from the processor 610, which can be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input means 630 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the device. The output device 640 may include a display device such as a display screen, and an audio device such as a speaker and a buzzer.

The device provided by the embodiment of the present application and the relay configuration method provided by the above embodiment belong to the same concept, and the technical details that are not described in detail in the embodiment can be referred to the above embodiment, and the embodiment has the same beneficial effects as the relay configuration method.

Embodiments of the present application also provide a storage medium, on which a computer program is stored, and when the program is executed by a processor, the relay configuration method according to the above embodiments of the present application is implemented.

Of course, the storage medium provided in the embodiments of the present application and containing computer-executable instructions is not limited to the operations in the relay configuration method described above, and may also perform related operations in the relay configuration method provided in any embodiment of the present application, and has corresponding functions and advantages.

From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a robot, a personal computer, a server, or a network device) to execute the relay configuration method according to the foregoing embodiments of the present application.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.