CN114040275B - Configuration method and device of optical transmission network channel, electronic equipment and storage medium - Google Patents
Configuration method and device of optical transmission network channel, electronic equipment and storage medium Download PDFInfo
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- CN114040275B CN114040275B CN202111309050.4A CN202111309050A CN114040275B CN 114040275 B CN114040275 B CN 114040275B CN 202111309050 A CN202111309050 A CN 202111309050A CN 114040275 B CN114040275 B CN 114040275B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q11/00—Selecting arrangements for multiplex systems
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- H04Q11/0062—Network aspects
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- H—ELECTRICITY
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- H04J14/00—Optical multiplex systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0075—Wavelength grouping or hierarchical aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
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- H04Q2011/0086—Network resource allocation, dimensioning or optimisation
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Abstract
The application provides a configuration method and device of an optical transmission network channel, electronic equipment and a storage medium. And performing channel configuration on the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node to form a configured optical transmission network, wherein the number of optical transmission nodes using the same wavelength channel in the configured optical transmission network is not greater than the sum of the numbers of all loop networks and link networks in the optical transmission network. When the capacity of the optical transmission node needs to be expanded, the optical transmission network configured by the configuration method of the optical transmission network channels only needs to start a new idle channel on a loop network or a link network in the optical transmission network, fully utilizes the pluggable fixed color light wavelength laser sharing the same channel wavelength in the network, does not need to purchase or purchase a small amount of new pluggable fixed color light wavelength laser, and effectively reduces the capacity expansion cost.
Description
Technical Field
The present invention relates to the field of optical communications, and in particular, to a method and apparatus for configuring a channel of an optical transmission network, an electronic device, and a storage medium.
Background
With the development of the optical communication field and the popularization of intelligent equipment, especially the implementation of broadband and 5G dual gigabits, the requirements of users on network speed are higher and higher, and thus, the requirements on the capacity of the optical transmission bandwidth are higher.
In the prior art, the configuration of the channels of the optical transmission network is generally based on the channel sequential architecture of the optical transmission network, that is, the channel configuration is sequentially performed from the 1 st channel for each loop network and each link network in the optical transmission network.
However, configuring channels in this way is very likely to cause multiple overlapping phenomena in the use of channels between the loop network and the link network in the optical transmission network. That is, since some channels are already occupied by a plurality of optical transmission nodes in a plurality of loop networks and link networks, when the optical transmission network needs to be expanded, only a new channel can be opened up and configured for the optical transmission node, and the corresponding network device needs to be purchased again when the new channel is opened up and configured, the original network device cannot be reused, the expansion cost is high, and the waste is caused.
Disclosure of Invention
The application provides a configuration method, device electronic equipment and storage medium for channels of an optical transmission network, which are used for configuring the channels of the optical transmission network so as to reduce the capacity expansion cost when the optical transmission network expands.
In a first aspect, the present application provides a method for configuring a channel of an optical transport network, including:
acquiring service estimated capacities of all loop networks and link networks in an optical transmission network at each optical transmission node, wherein the optical transmission network refers to the same type of optical transmission network of an optical core aggregation node in the same administrative area;
performing channel configuration for the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node to form a configured optical transmission network;
and the number of the optical transmission nodes using the same wavelength channel in the configured optical transmission network is not more than the sum of the numbers of all loop networks and link networks in the optical transmission network.
In a second aspect, the present application provides an apparatus for configuring a channel of an optical transmission network, including:
the acquisition module is used for acquiring service estimated capacity of all loop networks of the optical transmission network and all optical transmission nodes on the link network;
the configuration processing module is used for carrying out channel configuration on the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node to form a configured optical transmission network;
And the number of the optical transmission nodes using the same wavelength channel in the configured optical transmission network is not more than the sum of the numbers of all loop networks and link networks in the optical transmission network.
In a third aspect, the present application provides an electronic device, including:
a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored by the memory to implement the method of any one of the preceding claims.
In a fourth aspect, the present application provides a computer-readable storage medium having stored therein computer-executable instructions which, when executed by a processor, are configured to implement a method of configuring an optical transport network channel as claimed in any preceding claim.
In a fifth aspect, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements a method as claimed in any preceding claim.
According to the configuration method, the device electronic equipment and the storage medium of the optical transmission network channel, the service estimated capacity of all loop networks and all optical transmission nodes on the link network in the optical transmission network is obtained, and the channel configuration is carried out on the optical transmission loop networks and the link network according to the service estimated capacity of all the optical transmission nodes, so that the configured optical transmission network is formed. And the number of the optical transmission nodes using the same wavelength channel in the configured optical transmission network is not more than the sum of the numbers of all loop networks and link networks in the optical transmission network. For the prior art, when the optical transmission loop network and the link network configured by the scheme expand capacity, after a new wavelength channel is opened up, new network equipment is not required to be purchased, the original network equipment can be reused, and the capacity expansion cost is effectively reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic diagram of a network architecture on which the present application is based;
fig. 2 is a flow chart of a configuration method of an optical transmission network channel provided in the present application;
fig. 3 is a schematic structural diagram of a configuration device of an optical transmission network channel provided in the present application;
fig. 4 is a schematic hardware structure of the electronic device provided in the present application.
Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
With the development of the optical communication field and the popularization of intelligent equipment, especially the implementation of broadband and 5G dual gigabits, the requirement of users on the optical transmission bandwidth capacity of an optical transmission network becomes high, and how to reasonably configure channels of the optical transmission network becomes a hot spot of current research.
The optical transmission network is suitable for a loop-forming or chain-type double-fiber bidirectional (or single-fiber bidirectional) long distance network, a local network (including a metropolitan area network), an optical transmission network OTN of an access network, a wavelength division multiplexing WDM network and the like which use pluggable fixed color light wavelength lasers, and is hereinafter called an optical transmission network.
In the prior art, the configuration of the optical transmission network channels is generally based on a channel sequence architecture of the optical transmission network, and then numbering each channel of the optical transmission loop network and the link network, and sequentially configuring the optical transmission network channels from the 1 st channel to each loop network and each link network according to the sequence.
Obviously, when the channels are configured in such a way, the phenomenon that the channels between a loop network and a link network in an optical transmission network are overlapped is very easy to occur, namely, certain channels are occupied by a plurality of nodes in a plurality of loop networks, once the service capacity of the optical transmission network is increased and expansion is required, new channels can only be opened and configured for the optical transmission nodes, and further corresponding network equipment needs to be purchased again, the original network equipment cannot be reused, the expansion cost is high, and waste is caused.
For example, if 2 nodes in the loop network 1 and 2 nodes in the link network 2 for a single-fiber bidirectional optical transmission network are allocated to the 1 st and 2 nd channels of the same wavelength for traffic transmission. Then the optical transmission network needs to be expanded when the 1 st and 2 nd channels cannot meet the requirements of the nodes of the loop network 1 and/or the link network 2.
At this time, since the 1 st and 2 nd channels are already occupied by 2 nodes in the loop network 1, the 1 st and 2 nd channels can be allocated to one of the nodes in the loop network 1 during capacity expansion, so that the node can be used exclusively and continuously; while another node in the loop network 1 will select a pair of channels (e.g. 3 rd and 4 th channels) from the unoccupied channels in the loop network 1 for use by that node, the expansion of the link network 2 is similar.
It is well known that when a node is assigned a pair of channels, the node needs to use a corresponding pluggable fixed-wavelength-of-color laser to provide the node with optical transmission of the channel corresponding to the wavelength of the color light, and to transmit the channel through the optical fibers and wavelength division multiplexer between the nodes. However, in the existing capacity expansion mode, since a new color light channel is required to be used for each capacity expansion, a new pluggable fixed color light wavelength laser needs to be purchased to cope with the capacity expansion requirement, and the original pluggable fixed color light wavelength laser of the node cannot be used any more.
That is, for the loop network 1 and the link network 2, 2 pairs of new pluggable fixed color wavelength lasers need to be purchased respectively for one of the nodes in the loop network 1 and the link network 2, and the pluggable fixed color wavelength lasers corresponding to the original 1 st and 2 nd channels of the node are replaced and cannot be used any more, so that the capacity cost is high.
In order to solve the technical problem, the inventor considers that the service estimated capacity of each optical transmission node can be utilized, and configures the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node and the principle that the number of the optical transmission nodes using the same wavelength channel is not larger than the sum of the numbers of all loop networks and link networks in the optical transmission network, thereby reducing the cost required by the expansion of the optical transmission network.
Specifically, the method and the device for configuring the channel of the optical transmission loop network and the link network by acquiring the service estimated capacity of each optical transmission node on all loop networks and the link network in the optical transmission network and according to the service estimated capacity of each optical transmission node, when the configured optical transmission network needs to be expanded, after a new color optical channel is opened up, new network equipment is not required to be purchased. This effectively reduces the capacity expansion cost and makes the configuration of the optical transmission network more flexible.
The following describes in detail, with specific embodiments, a technical solution of an embodiment of the present application and how the technical solution of the present application solves the foregoing technical problems. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of an optical transmission network channel configuration method provided in the present application, where the network architecture shown in fig. 1 may specifically include a server 1, a core convergence point 2, an optical transmission node 3, and optical transmission loop network, and a link network 4.
The server 1 is specifically a server cluster arranged on a network management platform, and can obtain the estimated service capacity of each optical transmission node 3 forwarded by each core convergence point 2 of the optical transmission network, and complete the configuration of the optical transmission network channel according to the estimated service capacity of each optical transmission node 3.
The core convergence point 2 is specifically a router and a switch arranged on a network core layer and a convergence layer, and the router and the switch realize information communication between the server 1 and the optical transmission node 3 in a direct forwarding or store-and-forward mode so that the server 1 can complete channel configuration.
The optical transmission nodes 3 may be optical add/drop multiplexing devices, and each optical transmission node 3 has a plurality of pluggable fixed color light wavelength lasers and color light channels corresponding to the optical add/drop multiplexing devices. The optical transmission node 3 may upload its traffic forecast to the core convergence point 2, so that it uploads the change value of the traffic forecast capacity of the optical transmission node 3 to the server 1 in real time or periodically, so that the server 1 can complete the update of the traffic capacity of the optical transmission node 3.
The optical transmission network 4 may be an optical transmission loop network, and the link network 4 may be a part of the optical transmission network, that is, the optical transmission network is formed by a plurality of optical transmission loop networks and the link network 4, and the core convergence point 2 and the plurality of optical transmission nodes 3.
Example 1
Fig. 2 is a flow chart of a method for configuring channels of an optical transmission network provided in the present application, as shown in fig. 2, where the method includes:
It should be noted that, the optical transmission network described in the present application refers to the same type of optical transmission network in which the optical core aggregation node is located in the same administrative area, and the configuration method of the optical transmission network provided in the present application specifically performs a configuration device with a main body being the optical transmission network, where the device for configuring the optical transmission network channel may be specifically integrated, installed or carried in the foregoing server 1.
Specifically, in step 201, firstly, the network management platform server cluster can receive, in real time or periodically, the estimated service capacity of each optical transmission node forwarded by each core aggregation point of the optical transmission network, and upload the estimated service capacity to the server, so that the channel configuration device can obtain the relevant information of each optical transmission node and perform corresponding processing. The estimated service capacity of each optical transmission node refers to the maximum value of the capacity of the optical transmission node to bear data in an expected time period.
That is, a large amount of optical transmission node traffic estimated capacity information is stored in the server 1. The channel configuration device in the server 1 can complete the configuration of the optical transmission network channel by reading the information from the server 1.
After the channel configuration device obtains the estimated service capacity of each optical transmission node, step 202 is further executed to perform channel configuration on all loop networks and link networks in the optical transmission network. The number of optical transmission nodes using the same wavelength channel is not greater than the sum of the numbers of all loop networks and link networks in the optical transmission network when configuring the channel. The principle is used for facilitating the expansion of the optical transmission network and achieving the effect of saving resources.
The number of loop networks and link networks of the optical transmission network is specifically the number of closed loops or links formed by each optical transmission node and a core convergence point, namely the closed loops and links in the optical transmission network.
Specifically, for each optical transmission node in each loop network and link network, the estimated traffic capacity of each optical transmission node is compared with the actual available capacity of the pair of channels, and the optical transmission nodes are further divided into shared optical transmission nodes and non-shared optical transmission nodes which can use the same wavelength channels, and the channels are allocated according to the categories of the nodes.
The actual available capacity of the pair of channels refers to the receiving and transmitting rate of a corresponding pluggable fixed color light wavelength laser actually used on each pair of color light channels by a wavelength division multiplexer used for optical fiber transmission, for example: 10G/S, 40G/S, 100G/S, 200G/S, 400G/S, 800G/S, etc.
Further, for optical transmission nodes that can share channels using the same wavelength, the channel configuration means may assign part or all of the channels to each shared optical transmission node.
That is, the channel capacity used by the sharable optical transmission node may be all of the channels, or a portion of the channels, and the portion or all of the channels occupy the same wavelength; if the shared transmission node occupies a pair of channels, the pair of channels occupy the same wavelength, and if D (D > 1) pair of channels occupy different wavelengths.
For an optical transmission node that does not share a channel using the same wavelength, the full capacity actually available for that channel may be allocated to the optical transmission node that is not shared.
That is, the channel capacity space that is occupied independently by the optical transmission nodes that are not in shared use should be the full capacity of the channel, and the channels should occupy different wavelengths.
The number of the shared channels with the same wavelength and the non-shared channels can be 1 pair or D (D > 1) pair.
Further, step 202 may specifically include selecting, for each optical transmission node belonging to the same ring network or link network, a plurality of shared optical transmission nodes capable of using the same wavelength channels according to the estimated traffic capacity of each optical transmission node and the actual available capacity of a pair of channels, and allocating channels to each shared optical transmission node, where some or all of the channels allocated to each shared optical transmission node occupy the same wavelength; and allocating channels for the non-shared optical transmission nodes in each optical transmission node, wherein all the channels allocated to the non-shared optical transmission nodes occupy different wavelengths.
Specifically, in order to select a plurality of shared optical transmission nodes that can use the same wavelength channel, the channel configuration device traverses the estimated service capacity of each optical transmission node on the same loop network or link network, calculates the estimated service capacity X of each optical transmission node and the actual available capacity Y of a pair of channels, rounds up the calculation result downwards, and marks the whole number as N, and meanwhile, the configuration device needs to count the remainder of each optical transmission node after the calculation, namely, the remaining capacity of each optical transmission node, and marks the remainder as M, where M is a decimal.
For an integer N in the quotient result, if N >0, the optical transmission node allocates N pairs of exclusive different wavelength channels; if n=0, the optical transmission node temporarily allocates no channel. In addition, for the remaining capacity M of each optical transmission node, the configuration device needs to perform a summation operation on the remaining capacity M of each optical transmission node, and obtain a summation result and record as Z, if z=0, each optical transmission node does not reassign a channel, and if Z >0, the configuration device needs to perform a next judgment.
Next, the configuration device performs a quotient operation on the Z obtained in the above step and the pair of channel actual capacities Y, and rounds up the Z, and marks the obtained integer as N ', and if N' =1, allocates a shared channel using 1 pair of wavelengths for each optical transmission node having a residual capacity of M; and if N ' >1, distributing shared channels of N ' pairs of wavelengths to the plurality of optical transmission nodes, wherein the shared channels of N ' pairs of wavelengths occupy different wavelengths.
When each optical transmission node occupies each pair of channel capacity in a combined way, the difference value of each pair of channel capacities needs to be kept to be minimized so as to maximize the margin of one or more pairs of channels with the largest occupied capacity, thereby prolonging the capacity expansion time to the maximum extent and ensuring the maximization of the original investment benefit.
Further, when each optical transmission node cannot be combined with other optical transmission nodes to share a pair of channels occupying the same wavelength, a pair of channels occupying different wavelengths from those occupied by other optical transmission nodes may be exclusively used.
That is, the wavelength and channel occupied by each optical transmission node need to be considered in combination N, Z and N'.
For example, the optical transmission network is composed of a loop network 1, a link network 2 and a loop network 3, wherein the loop network 1 is provided with 3 optical transmission nodes a11 (13G/S), a12 (21G/S) and a13 (4G/S), and the loop network 1 and the link network are 40 channels, and each channel can actually use an OTN optical transmission network with a capacity of 10G/S; the link network 2 has 2 optical transmission nodes a21 (7G/S) and a22 (6G/S), and the loop network 3 has 2 optical transmission nodes a31 (5G/S) and a32 (3G/S).
The initial configuration of channels for the optical transmission nodes in the optical transmission network in the above example is as follows:
the configuration device sequentially configures the channels of the optical transmission nodes on each loop network or link network.
Aiming at the loop network 1, the channel configuration device firstly obtains the quotient of the actual available capacity of each optical transmission node and a pair of channels in the loop network 1, and rounds down the quotient result to obtain the number of exclusive channels; and then counting the remainder after the operation of each transmission node in the loop network 1, namely decimal, summing the counted remainder, and judging the number of the optical transmission nodes needing to share or monopolize the channels and the number of the shared or monopolize the channels according to the result of the remainder summation.
Specifically, the estimated capacity X of each optical transmission node and the actual available capacity Y of a pair of channels are calculated according to the sequence, and are rounded downwards, and the result of calculating the quotient for the loop network 1 is that the integer part of a11 is 1, the integer part of a12 is 2, and the integer part of a13 is 0; the results of the quotient calculation by the link network 2 are all 0; the result of the link network 3 obtaining the quotient is 0; and allocating the corresponding number of pairs of exclusive channels for the channels, namely, allocating channels for a11 as 1 pair, wherein the wavelengths occupied by the channels are lambda 1/lambda 2, allocating channels for a12 as 2 pairs, the wavelengths occupied by the channels are lambda 3/lambda 4 and lambda 5/lambda 6, and the wavelengths occupied by the exclusive channels are different.
Then, the channel configuration device calculates the remainder of each optical transmission node in the calculation process of the above step for the same loop network or link network, that is, the remainder of each optical transmission node in the loop network 1 is 0.3 in the fractional part of a11, 0.1 in the fractional part of a12, and 0.4 in the fractional part of a13 in sequence. The configuration means sums the fractional parts of the optical transmission nodes of the loop network 1 and obtains a summation result of 0.8, i.e. the remainder part of the optical transmission nodes will occupy 80% of the channel space of a pair, so that the remainder part in a11, a12, a13 is allocated 1 pair of channels, and the wavelength occupied by the channels is λ7/λ8.
Further, a11 in the loop network 1 occupies 2 pairs of channels, wherein 1 pair is exclusive to a11, and the remaining 1 pair shares the same pair of channels with a12 and a 13; a12 occupies 3 pairs of channels, of which 2 pairs are exclusive to a12 itself, and the remaining 1 pair shares the same pair of channels with a11, a 13; a13 occupies 1 pair of channels, i.e. shares the same pair of channels as a1, a 13.
Similarly, the initial configuration of the channels of the link network 2 and the loop network 3 is completed according to the principle of the above steps, that is, the configuration of the channels of the optical transmission network in the above example is completed, and the results in table 1 are obtained.
TABLE 1
If any loop network or link network in the optical transmission network has an optical transmission node that cannot be combined with other optical transmission nodes to share the same channel, the node should monopolize a pair of channels with different wavelengths than those occupied by other optical transmission nodes.
Specifically, when the channel configuration device allocates channels for the unshared transmission nodes in the optical transmission network, a multiple relation between the service estimated capacity of each unshared transmission node and the actual available capacities of the pair of channels needs to be obtained, that is, the actual available capacities of the pair of channels are divided by the service estimated capacity of each unshared transmission node, so as to obtain an operation result, and the channels are configured and the corresponding wavelengths are allocated according to the operation result.
If the operation result is an integer, allocating the number of channels of integer multiple to the non-shared transmission node; if the operation result is a decimal, the operation result is rounded up and rounded integer pairs of channels are allocated to the unshared optical transmission nodes, and it is noted that the wavelengths corresponding to the number of the channels of the integer multiples are different, and the channels allocated to the optical transmission nodes are used as exclusive channels of the nodes.
As can be seen from table 1, the number of optical transmission nodes using the same wavelength channels in the optical transmission network after configuration is not greater than the sum of the number of all loop networks and the number of link networks in the optical transmission network.
After the channel configuration device completes the channel configuration, in other optional embodiments, the service estimated capacity of each optical transmission node is updated, and the service update capacity of each optical transmission node is obtained. So that the channel configuration device performs the next channel configuration processing on the loop network and the link network of the optical transmission.
The service estimated capacity updating of the optical transmission node refers to that the optical transmission node forwards the changed service estimated capacity information to the core aggregation node in real time or according to a certain period, and the core aggregation node forwards the changed service estimated capacity information to the server, so that the channel configuration device obtains the updated service estimated capacity of the optical transmission node from the server.
Specifically, the channel configuration device obtains the updated service estimated capacity of each optical transmission node from the server, and if the updated service capacity is greater than the configured channel capacity, the configured optical transmission network needs to be subjected to capacity expansion processing.
In the foregoing, the capacity expansion refers to that the capacity of a channel in any loop network and link network in the optical transmission network in the current network is insufficient to meet the service estimated capacity requirement of the shared optical transmission node thereon, and different wavelengths are allocated to the optical transmission node on the shared same channel, that is, the shared optical transmission node changes from occupying the same channel and wavelength to occupying each or part of different channels, and allocates corresponding wavelength to the channel.
When the service capacity of the optical transmission node exceeds the channel capacity after the current configuration, the channel configuration device selects the optical transmission node using the same channel in the current optical transmission network and performs capacity expansion processing on the optical transmission node.
Specifically, the channel configuration device firstly determines the wavelength occupied by the shared channel in each loop network or link network, then reallocates the channel for each optical transmission node shared in any loop network or link network, wherein each optical transmission node is a shared optical transmission node using the same channel, so that each or part of shared optical transmission nodes do not use the same channel after reallocating the channel, namely, the wavelengths occupied by each or part of optical transmission nodes are different, so as to meet the requirements of the updated optical transmission service node.
Furthermore, the channel configuration device is configured to select one or a part of the optical transmission nodes from among the plurality of optical transmission nodes by calculation and enable the optical transmission nodes to occupy the original shared wavelength, namely, pluggable fixed color light wavelength lasers in the original shared channel are used, and pluggable fixed color light wavelength lasers of other optical transmission nodes are left in the original shared channel; for the rest of the shared multiple optical transmission nodes, the channel configuration device distributes the wavelengths occupied by the channels of the original shared optical transmission nodes in other loop networks to the nodes.
If the optical transmission nodes sharing the same wavelength channel in the optical transmission loop network or the link network need to be expanded, but the optical transmission nodes sharing the same wavelength channel in other optical transmission loop networks or the link network do not need to be expanded, the channel wavelength of the optical transmission nodes needing to be expanded in the optical transmission loop network or the link network can occupy the channel wavelength which is expanded by the optical transmission nodes actually using the same wavelength channel in the optical transmission network, the number of the optical transmission nodes actually using the same wavelength channel is smaller than the same wavelength channel originally shared by the optical transmission nodes which are the sum of the numbers of all loop networks and the link networks in the optical transmission network, and the new spare wavelength channel which is not occupied by the optical transmission nodes of the optical transmission network can also be occupied.
It should be noted that, the pluggable fixed color wavelength laser with the same occupied channel wavelength is newly added to the optical transmission node to be expanded in the optical transmission network, and the original pluggable fixed color wavelength laser is reserved for the optical transmission nodes in other optical transmission networks to be used when the expansion is required, so that the investment of the original pluggable fixed color wavelength laser is ensured, and the situation that the investment of the original pluggable fixed color wavelength laser is wasted due to the expansion in the past is avoided.
The service estimated capacity of each optical transmission node of the optical transmission network in table 1 is updated, and the obtained results are shown in table 2.
As can be seen from table 2, the optical transmission node a11 in the loop network 1 is expanded from the original 13G/S to 16G/S, the optical transmission node in the loop network 2 is expanded from the original 3G/S to 9G/S, and the two loop networks are used for example to perform the expansion processing on the optical transmission network, and the corresponding processing is as follows.
The optical transmission nodes sharing the same wavelength channels in the optical transmission loop network 1 need to be expanded, the optical transmission nodes sharing the same wavelength channels in the loop network 3 also need to be expanded, and the wavelengths of the same channels shared by the loop network 1 and the loop network 3 are different, so that the wavelength of the channel which is expanded by the optical transmission nodes needing to be expanded in the loop network 1 can be allocated to occupy the wavelength which shares the same channels as the wavelength shared by the loop network 3, and meanwhile, the pluggable fixed color optical wavelength laser of the wavelength channel optical transmission node is called. Similarly, if there is an optical transmission node sharing the same wavelength channel in other loop network or link network in the optical transmission network, the capacity of the optical transmission node needs to be expanded, so as to fully utilize the investment of the original pluggable fixed color light wavelength laser in the same way;
It can be understood that after a11 in the loop network 1 is expanded, the integer obtained by dividing the actual available capacity of the pair of channels by the corresponding integer is 1 and the decimal is 0.6. At this time, the sum of the decimal part and the decimal part of the original a12 and a13 exceeds the actually available capacity of 1 pair of channels, so that a pair of channels needs to be expanded, considering that when the optical transmission nodes occupy the capacity of each pair of color wavelength channels in combination, the difference between the capacities of the respective pairs of color wavelength channels needs to be kept to be minimized, so that the allowance of one or more pairs of channels with the largest occupied capacity is maximized, a11 occupies a pair of channels alone, a12 and a13 share and use a pair of channels, i.e. the two optical transmission nodes may still occupy the original shared wavelength channel λ7/λ8.
After the capacity of the optical transmission node a32 of the loop network 3 is expanded, according to the processing method of a11 in the loop network 1, the obtained decimal part is 0.9, and obviously, the original shared channel after being combined with the decimal part a31 cannot bear the capacity after the capacity expansion, so that the wavelength channel a11 and the pluggable fixed color light wavelength laser thereon can be occupied by a31, and the wavelength channel a31 and the pluggable fixed color light wavelength laser thereon can be occupied by a 11.
Further, the optical transmission node a11 may use the shared wavelength channels λ9/λ10 in the loop network 3, and use the pluggable fixed color optical wavelength laser thereon; the optical transmission node a31 may use the shared wavelength channels λ7/λ8 in the loop network 1, while using pluggable fixed-color optical wavelength lasers thereon.
After the capacity expansion, it is ensured that the number of optical transmission nodes using the same wavelength channel in the configured optical transmission network is not greater than the sum of the numbers of all loop networks and link networks in the optical transmission network.
TABLE 2
In the above-mentioned capacity expansion example, if the loop network 1 and the loop network 3 are not expanded simultaneously, the a11 optical transmission node on the loop network 1 or the a31 optical transmission node on the loop network 3 should be newly purchased to expand the pluggable fixed-color-light wavelength laser with the same color-light wavelength as needed; meanwhile, the core aggregation node of the transmission ring network or the link network to which the expanded optical transmission node belongs needs to newly purchase pluggable fixed-color-light-wavelength lasers corresponding to the same color light wavelength.
The application provides a configuration method of an optical transmission network channel. And performing channel configuration on the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node to form a configured optical transmission network, wherein the number of optical transmission nodes using the same wavelength channel in the configured optical transmission network is not greater than the sum of the numbers of all loop networks and link networks in the optical transmission network. When the capacity of the optical transmission node needs to be expanded, the optical transmission network configured by the configuration method of the optical transmission network channels only needs to start a new idle channel on a loop network or a link network in the optical transmission network, fully utilizes the pluggable fixed color light wavelength laser sharing the same channel wavelength in the network, does not need to purchase or purchase a small amount of new pluggable fixed color light wavelength laser, and effectively reduces the capacity expansion cost.
Example two
Fig. 3 is a schematic structural diagram of an optical transmission network channel configuration device according to the present application. For ease of illustration, only portions relevant to the present application are shown.
Referring to fig. 3, the configuration apparatus of an optical transmission network channel includes:
the acquiring module 10 is configured to acquire service estimated capacities of all loop networks of the optical transmission network and all optical transmission nodes on the link network;
the configuration processing module 20 is configured to perform channel configuration for the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node, so as to form a configured optical transmission network;
and the number of the optical transmission nodes using the same wavelength channel in the configured optical transmission network is not more than the sum of the numbers of all loop networks and link networks in the optical transmission network.
Optionally, the processing module 20 is configured, specifically for:
for each optical transmission node belonging to the same optical transmission loop network or link network, selecting a plurality of optical transmission nodes capable of using the same wavelength shared channel according to the service estimated capacity of each optical transmission node and the actual available capacity of a pair of channels, and distributing channels for each shared optical transmission node, wherein part or all of the channels distributed to each shared channel optical transmission node occupy the same wavelength;
And allocating channels for the non-shared optical transmission nodes in the optical transmission nodes, wherein all channels allocated to the non-shared optical transmission nodes occupy channels with different wavelengths.
Optionally, the configuration processing module 20 is specifically further configured to:
selecting a plurality of optical transmission nodes which can use the same wavelength to share the channel according to the service estimated capacity of each optical transmission node and the service estimated capacity, and distributing the channel for each shared optical transmission node, wherein the distribution steps are as follows:
if N >0, the optical transmission node allocates N pairs of exclusive different wavelength channels;
if n=0, the optical transmission node temporarily does not allocate channels;
if z=0, then each optical transmission node does not reassign a channel;
if Z is more than 0, executing the step 3;
if N' =1, allocating a shared channel of 1 pair wavelength to the optical transmission node with the remaining capacity M;
If N '>1, the plurality of optical transmission nodes allocate shared channels of N' pairs of wavelengths, where each pair of wavelengths is different;
and 4, when each optical transmission node cannot share a pair of channels occupying the same wavelength after being combined with other optical transmission nodes, the optical transmission node can monopolize a pair of channels occupying different wavelengths from the other optical transmission nodes.
When channels occupying a pair of the same wavelength are shared after combination, the difference of the capacity of each pair of channels is required to be kept to be minimized, so that the allowance of one or more pairs of channels occupying the largest capacity is maximized, the capacity expansion time is prolonged to the maximum extent, and the original investment benefit is ensured to be maximized.
Optionally, the configuration processing module 20 is specifically further configured to:
determining the number of exclusive channels of each non-shared optical transmission node according to the multiple relation between the service estimated capacity of each non-shared optical transmission node and the actual available capacity of the pair of channels;
and allocating the channels with different wavelengths to the non-shared optical transmission nodes according to the number of the channels corresponding to the non-shared optical transmission nodes so as to serve as exclusive channels of the non-shared optical transmission nodes.
Optionally, the configuration device of the optical transmission network channel further includes: updating the processing module;
the updating processing module is specifically applied to:
updating the service estimated capacity of each optical transmission node to obtain the service updating capacity of each optical transmission node;
judging whether the current optical transmission loop network and the link network after channel configuration need to carry out channel capacity expansion according to the service updating capacity of each optical transmission node;
if yes, the capacity of the current optical transmission network is expanded based on the optical transmission nodes using the same channel in the current optical transmission network.
Optionally, the configuration device of the optical transmission network channel further includes: a capacity expansion processing device;
the capacity expansion device is specifically used for:
determining the wavelength corresponding to the channel occupied by the shared optical transmission node needing capacity expansion in each loop network or link network in the current optical transmission network;
and allocating channels for a plurality of shared optical transmission nodes using the same channels in the loop network or the link network again, so that the original shared optical transmission nodes needing to be expanded do not use the original same wavelength channels after the channels are redistributed, and all the optical transmission nodes which do not need to be expanded and share the original same wavelength channels still share the original same wavelength channels.
Updating the service estimated capacity of each optical transmission node to obtain the service updating capacity of each optical transmission node;
the implementation principle of the configuration device of the optical transmission network channel provided in the present application is similar to that in any of the foregoing embodiments, and is not described herein.
The application provides a configuration device of an optical transmission network channel, which is used for configuring the channel for the optical transmission network by acquiring service estimated capacities of all loop networks and all optical transmission nodes of a link network in the optical transmission network and according to the service estimated capacities of all optical transmission nodes, so as to form the configured optical transmission network. And the number of the optical transmission nodes using the same channel in the configured optical transmission network is not more than the sum of the number of loop networks and link networks of the optical transmission network. By using the configuration method of the optical transmission network channel, the capacity expansion processing of the optical transmission network can be completed without opening up a new channel or purchasing new network equipment, and the capacity expansion cost is effectively reduced.
Example III
Fig. 4 is a schematic diagram of a hardware structure of the electronic device provided in the present application, and for convenience of explanation, only a portion relevant to the present application is shown.
Referring to fig. 4, there is shown a schematic structural diagram of an electronic device 1000 suitable for implementing embodiments of the present application, where the electronic device 1000 may be a terminal device. Among them, the terminal device may include, but is not limited to, a mobile terminal such as a mobile phone, a notebook computer, a digital broadcast receiver, a personal digital assistant (Personal Digital Assistant, PDA for short), a tablet computer (Portable Android Device, PAD for short), a portable multimedia player (Portable Media Player, PMP for short), an in-vehicle device (e.g., an in-vehicle navigation terminal), and the like, and a fixed terminal such as a digital TV, a desktop computer, and the like. The electronic device shown in fig. 4 is only an example and should not be construed as limiting the functionality and scope of use of the embodiments herein.
As shown in fig. 4, the electronic apparatus 1000 may include a processing device (e.g., a central processing unit, a graphics processor, etc.) 1001 that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 1002 or a program loaded from a storage device 1009 into a random access Memory (Random Access Memory, RAM) 1003. In the RAM 1003, various programs and data necessary for the operation of the electronic apparatus 1000 are also stored. The processing device 1001, the ROM 1002, and the RAM 1003 are connected to each other by a bus 1004. An input/output (I/O) interface 1006 is also connected to bus 1004.
In general, the following devices may be connected to the I/O interface 1006: input devices 1006 including, for example, a touch screen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, and the like; an output device 1007 including, for example, a liquid crystal display (Liquid Crystal Display, LCD for short), a speaker, a vibrator, and the like; storage 1009 including, for example, magnetic tape, hard disk, etc.; and a communication device 10010. The communication device 10010 may allow the electronic apparatus 1000 to communicate wirelessly or by wire with other apparatuses to exchange data. While fig. 4 shows an electronic device 1000 having various means, it is to be understood that not all of the illustrated means are required to be implemented or provided. More or fewer devices may be implemented or provided instead.
In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from a network via the communication device 10010, or installed from the storage device 1009, or installed from the ROM 1002. The above-described functions defined in the method of the embodiment of the present application are performed when the computer program is executed by the processing device 1001.
It should be noted that the computer readable medium described in the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present application, however, a computer-readable signal medium may include a data signal that propagates in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
The computer readable medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device.
The computer-readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to perform the methods shown in the above-described embodiments.
A computer program product is provided herein that can be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages, or combinations thereof to perform the operations of the present disclosure. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or media library. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a local area network (Local Area Network, LAN for short) or a wide area network (Wide Area Network, WAN for short), or it may be connected to an external computer (e.g., connected via the internet using an internet service provider).
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units involved in the embodiments of the present application may be implemented by software, or may be implemented by hardware. The name of the unit does not in any way constitute a limitation of the unit itself, for example the first acquisition unit may also be described as "unit acquiring at least two internet protocol addresses".
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
In the context of this application, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The embodiments of the present application are intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (8)
1. A method for configuring a channel of an optical transmission network, comprising:
acquiring service estimated capacities of all loop networks and link networks in an optical transmission network at each optical transmission node, wherein the optical transmission network refers to the same type of optical transmission network of an optical core aggregation node in the same administrative area;
performing channel configuration for the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node to form a configured optical transmission network;
wherein, in the configured optical transmission network, the number of optical transmission nodes using the same wavelength channel is not greater than the sum of the numbers of all loop networks and link networks in the optical transmission network;
and performing channel configuration for all loop networks and link networks in the optical transmission network according to the service estimated capacity of each optical transmission node to form a configured optical transmission network, wherein the method comprises the following steps:
for each optical transmission node belonging to the same optical transmission loop network or link network, selecting a plurality of optical transmission nodes capable of using the same wavelength shared channel according to the service estimated capacity of each optical transmission node and the actual available capacity of a pair of channels, and distributing channels for each shared optical transmission node, wherein part or all of the channels distributed to each shared channel optical transmission node occupy the same wavelength;
And allocating channels for the non-shared optical transmission nodes in the optical transmission nodes, wherein all channels allocated to the non-shared optical transmission nodes occupy channels with different wavelengths.
2. The configuration method according to claim 1, wherein a plurality of optical transmission nodes that can use the same wavelength shared channel are selected based on the estimated traffic capacity of each optical transmission node, and channels are allocated to each shared optical transmission node, the allocation step being as follows:
step 1, calculating the service estimated capacity X of each optical transmission node and the actual available capacity Y of a pair of channels, rounding down to obtain an integer N, and calculating the residual capacity M of each optical transmission node, wherein M is the remainder of the quotient operation;
if N >0, the optical transmission node allocates N pairs of exclusive different wavelength channels;
if n=0, the optical transmission node temporarily does not allocate channels;
step 2, accumulating the sum of the residual capacities M of all the optical transmission nodes, wherein the sum is denoted by Z;
if z=0, then each optical transmission node does not reassign a channel;
if Z is more than 0, executing the step 3;
step 3, calculating Z divided by Y, rounding upwards and obtaining an integer N';
if N' =1, allocating a shared channel of 1 pair wavelength to the optical transmission node with the remaining capacity M;
If N '>1, the plurality of optical transmission nodes allocate shared channels of N' pairs of wavelengths, where each pair of wavelengths is different;
step 4, when each optical transmission node cannot share a pair of channels occupying the same wavelength after being combined with other optical transmission nodes, the optical transmission node can monopolize a pair of channels occupying different wavelengths from those occupied by other optical transmission nodes;
when channels occupying a pair of the same wavelength are shared after combination, the difference of the capacity of each pair of channels is required to be kept to be minimized, so that the allowance of one or more pairs of channels occupying the largest capacity is maximized, the capacity expansion time is prolonged to the maximum extent, and the original investment benefit is ensured to be maximized.
3. The configuration method according to claim 1, wherein channels are allocated to non-shared optical transmission nodes among the optical transmission nodes, and all the channels allocated to the non-shared optical transmission nodes occupy different channels, comprising:
determining the number of exclusive channels of each non-shared optical transmission node according to the multiple relation between the service estimated capacity of each non-shared optical transmission node and the actual available capacity of the pair of channels;
and allocating the channels with different wavelengths to the non-shared optical transmission nodes according to the number of the channels corresponding to the non-shared optical transmission nodes so as to serve as exclusive channels of the non-shared optical transmission nodes.
4. A configuration method according to any one of claims 1 to 3, wherein the configuring the channels for the optical transmission loop network and the link network according to the estimated service capacity of each optical transmission node, after forming the configured optical transmission network, further includes:
updating the service estimated capacity of each optical transmission node to obtain the service updating capacity of each optical transmission node;
judging whether the current optical transmission loop network and the link network after channel configuration need to carry out channel capacity expansion according to the service updating capacity of each optical transmission node;
if yes, the capacity of the current optical transmission network is expanded based on the optical transmission nodes using the same channel in the current optical transmission network.
5. The configuration method according to claim 4, wherein the expanding the current optical transmission network based on the optical transmission node using the same wavelength channel in the current optical transmission network includes:
determining the wavelength corresponding to the channel occupied by the shared optical transmission node needing capacity expansion in each loop network or link network in the current optical transmission network;
and allocating channels for a plurality of shared optical transmission nodes using the same channels in the loop network or the link network again, so that the original shared optical transmission nodes needing to be expanded do not use the original same wavelength channels after the channels are redistributed, and all the optical transmission nodes which do not need to be expanded and share the original same wavelength channels still share the original same wavelength channels.
6. An apparatus for configuring a channel of an optical transmission network, comprising:
the acquisition module is used for acquiring service estimated capacity of all loop networks of the optical transmission network and all optical transmission nodes on the link network;
the configuration processing module is used for carrying out channel configuration on the optical transmission loop network and the link network according to the service estimated capacity of each optical transmission node to form a configured optical transmission network;
wherein, in the configured optical transmission network, the number of optical transmission nodes using the same wavelength channel is not greater than the sum of the numbers of all loop networks and link networks in the optical transmission network;
the configuration processing module is specifically configured to select, for each optical transmission node belonging to the same optical transmission loop network or link network, a plurality of optical transmission nodes capable of sharing channels with the same wavelength according to a service estimated capacity of each optical transmission node and an actual available capacity of a pair of channels, and allocate channels to each shared optical transmission node, where part or all of the channels allocated to each shared channel optical transmission node occupy the same wavelength; and allocating channels for the non-shared optical transmission nodes in the optical transmission nodes, wherein all channels allocated to the non-shared optical transmission nodes occupy channels with different wavelengths.
7. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 1-5.
8. A computer readable storage medium, wherein computer executable instructions are stored in the computer readable storage medium, which when executed by a processor is adapted to implement the method for configuring an optical transmission network according to any one of claims 1-5.
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