CN112203172B - Special line opening method and device - Google Patents
Special line opening method and device Download PDFInfo
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- CN112203172B CN112203172B CN202011072739.5A CN202011072739A CN112203172B CN 112203172 B CN112203172 B CN 112203172B CN 202011072739 A CN202011072739 A CN 202011072739A CN 112203172 B CN112203172 B CN 112203172B
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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
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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
- H04Q11/0005—Switch and router 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
- 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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Abstract
The invention provides a private line opening method and a private line opening device, and the private line opening method provided by the embodiment comprises the following steps: acquiring request information of a special line to be opened; determining the equipment type and interface capability of each equipment bearing the special line to be opened by utilizing a preset shortest path algorithm according to the request information and the network topology information received in advance; determining a first configuration of an access side network element and a second configuration of a transmission side network element according to the equipment type, the interface capability and a preset configuration rule; and according to the first configuration and the second configuration, opening the special line to be opened. By the special line opening method provided by the embodiment of the disclosure, automatic opening of service paths in the converged special line is realized, so that the opening efficiency is improved and the labor cost is reduced.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a special line opening method and a special line opening device.
Background
With the development of networks, the classified private line services are gradually increased due to the improvement of network requirements and service requirements of clients, and the private line services not only have requirements on bandwidth and access service types in an access layer, but also can provide more detailed and detailed requirements on the whole service quality of the services, so that the bandwidth provided by the private line services is higher in speed and higher in reliability compared with the bandwidth provided by common network access services.
In the prior art, an operator opens a dedicated Line for fusion of a Passive Optical Network (PON) and an Optical Transport Network (OTN) by using a method of configuring services for each device of the networks on both sides and then completing a service path, for example, at an Optical Distribution Network (ODN) side, an access Network manages service parameters for an Optical Network Terminal (ONT) and an Optical Line Terminal (OLT); and at the same time, at the side of the OTN network, the network manager transmits the configuration service parameters of the OTN equipment. The processing method is mainly completed by manual segmentation configuration, and before configuration, the network resource states of an access side and a transmission side need to be checked manually to judge whether the bandwidth of the link resource is enough, so that the opening efficiency is not high and the labor cost is high.
Therefore, how to implement automatic opening of the service path in the process of opening the converged private line is an urgent problem to be solved.
Disclosure of Invention
The invention provides a private line opening method, which is used for realizing automatic opening of a service path in a converged private line, thereby improving opening efficiency and reducing labor cost.
In a first aspect, the present disclosure provides a private line provisioning method, including:
acquiring request information of a special line to be opened;
determining the equipment type and interface capacity of each equipment bearing the special line to be opened by utilizing a preset shortest path algorithm according to the request information and the network topology information received in advance;
determining a first configuration of an access side network element and a second configuration of a transmission side network element according to the equipment type, the interface capability and a preset configuration rule;
and opening the special line to be opened according to the first configuration and the second configuration.
In one possible design, the request information includes: the source end of the special line to be opened, the sink end of the special line to be opened, the bandwidth of the special line to be opened and the link protection capability of the special line to be opened.
In one possible design, before determining the first configuration of the access-side network element and the second configuration of the transport-side network element according to the device type, the interface capability, and the preset configuration rule, the method further includes:
and when at least one path of the special line to be opened exists according to the equipment type and the interface capability, selecting one path as a target path according to the request information, wherein the target path is used for representing the path of the special line to be opened.
In a second aspect, the present disclosure provides a private line provisioning method, including:
receiving a data message of a link layer discovery protocol; the data message is obtained by extending the frame format of the link layer discovery protocol and then running;
according to the data message, applying an analysis protocol rule to determine opposite terminal equipment information, wherein the opposite terminal equipment information comprises: the method comprises the following steps that the name of an opposite-end network element, the port identification of the opposite-end network element, the maximum link bandwidth of a link corresponding to the opposite-end network element, the available link bandwidth of the link and the link protection capability of the link are obtained;
and sending the opposite terminal equipment information, wherein the opposite terminal equipment information is one of network topology information.
In one possible design, the frame format of the extended link layer discovery protocol includes: a first newly-added sub-item and a second newly-added sub-item, wherein the first sub-item is used for representing the maximum bandwidth of the link and the available bandwidth of the link; the second sub-entry is used to indicate the link protection capability.
In a third aspect, the present disclosure further provides a device for opening a dedicated line, including:
the acquisition module is used for acquiring request information of a special line to be opened;
the first determining module is used for determining the equipment type and the interface capability of each equipment bearing the special line to be opened by utilizing a preset shortest path algorithm according to the request information and the network topology information received in advance;
a second determining module, configured to determine, according to the device type, the interface capability, and a preset configuration rule, a first configuration of the access-side network element and a second configuration of the transmission-side network element;
and the processing module is used for opening the special line to be opened according to the first configuration and the second configuration.
In one possible design, the request information includes: the source end of the special line to be opened, the sink end of the special line to be opened, the bandwidth of the special line to be opened and the link protection capability of the special line to be opened.
In one possible design, the second determining module is further configured to:
and when at least one path of the special line to be opened exists according to the equipment type and the interface capability, selecting one path as a target path according to the request information, wherein the target path is used for representing the path of the special line to be opened.
In a fourth aspect, the present disclosure further provides a device for opening a dedicated line, including:
the acquisition module is used for receiving a data message of a link layer discovery protocol; the data message is obtained by extending and then operating the frame format of a link layer discovery protocol;
a determining module, configured to apply an analysis protocol rule according to the data packet, and determine peer device information, where the peer device information includes: the method comprises the following steps that the name of an opposite-end network element, the port identification of the opposite-end network element, the maximum link bandwidth of a link corresponding to the opposite-end network element, the available link bandwidth of the link and the link protection capability of the link are obtained;
and the sending module is used for sending the opposite terminal equipment information, wherein the opposite terminal equipment information is one of network topology information.
In one possible design, the frame format of the extended link layer discovery protocol includes: a first newly added sub item and a second newly added sub item, wherein the first sub item is used for representing the maximum bandwidth of the link and the available bandwidth of the link; the second sub-entry is used to indicate a link protection capability.
In a fifth aspect, the present disclosure further provides a management and control system, including:
a processor; and the number of the first and second groups,
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform any one of the private line provisioning methods of the first aspect via execution of executable instructions.
In a sixth aspect, the present disclosure also provides a terminal device, including:
a processor; and the number of the first and second groups,
a memory for storing executable instructions of the processor;
wherein the processor is configured to execute any one of the private line provisioning methods of the second aspect via execution of the executable instructions.
In a seventh aspect, an embodiment of the present disclosure further provides a storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method for provisioning a dedicated line in the first aspect is implemented.
In an eighth aspect, an embodiment of the present disclosure further provides a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, the method for opening a dedicated line in any one of the second aspects is implemented.
The disclosure provides a private line opening method and a private line opening device, which are used for obtaining request information of a private line to be opened; determining the equipment type and interface capacity of each equipment bearing the special line to be opened by utilizing a preset shortest path algorithm according to the request information and the network topology information received in advance; determining a first configuration of an access side network element and a second configuration of a transmission side network element according to the equipment type, the interface capability and a preset configuration rule; and according to the first configuration and the second configuration, the special line to be opened is opened so as to realize automatic opening of the service path in the integrated special line, thereby improving the opening efficiency and reducing the labor cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on the drawings without inventive labor.
Fig. 1 is an application scenario diagram of a private line provisioning method according to an example embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a flow of a private line provisioning method according to an example embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating a second flow of a private line provisioning method according to an example embodiment of the present disclosure;
fig. 4 is a frame structure diagram of a private line opening method according to an example embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a frame structure extension of a private line provisioning method according to an example embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a first private line connection device according to an example embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a second private line provisioning apparatus according to an example embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a management and control system according to an example embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is an application scenario diagram of a private line provisioning method according to an example embodiment of the present disclosure, as shown in fig. 1, including a management and control system 101, such as a Network Cloud Engine-based single management domain (NCE-T), an OLT device 102, and an OTN device 103; the management and control system unit 101 is connected with the OLT device 102, and the management and control system unit 101 is connected with the OTN device 103 through a data communication network; the OLT device 102 and the OTN device 103 are connected by an ethernet Link, an extended Link Layer Discovery Protocol (LLDP) is run on the ethernet Link, opposite-end device information of the Link is respectively discovered between the OLT device 102 and the OTN device 103 by extending a LLDP frame structure, and the opposite-end device information is actively reported to the management and control system 101; when the management and control system 101 receives request information of an upper-layer service system for a converged private line, according to stored network topology information such as opposite-end device information, a preset shortest path algorithm is used to determine a service path matched with bandwidth requirements in the request information, and device types and interface capabilities of devices on the service path, and according to the device types, the interface capabilities and preset configuration rules, respective service configurations of an access-side network element and a transmission-side network element are determined; and opening the special line to be opened according to the service configurations. By the processing method, automatic opening of the service path in the converged private line is realized, so that opening efficiency is improved, and labor cost is reduced
Fig. 2 is a schematic diagram illustrating a flow of a private line provisioning method according to an example embodiment of the present disclosure; as shown in fig. 2, the private line opening method provided in this embodiment includes:
specifically, the management and control system receives a service provisioning request of a special line to be provisioned sent by an upper-layer service system, and the request information includes: the source end of the special line to be opened, the sink end of the special line to be opened, the bandwidth of the special line to be opened and the link protection capability of the special line to be opened.
specifically, the network topology information received in advance by the management and control system is reported by the OLT device and the OTN device in the network in different manners, as shown in fig. 1, when the OTN device is connected to the OTN device, the OTN device reports information such as a network element name, a port identifier, and an interface capability according to an update condition of a configuration parameter of the OTN device; when the OTN device is connected to the OLT device, the OLT device is connected to the OTN device via an ethernet link, and an extended LLDP protocol is run on the ethernet link to enable the OLT device and the OTN device to respectively discover information of a link peer device, where the peer device information includes: the name of the opposite-end network element, the port identification of the opposite-end network element, the maximum link bandwidth of a link corresponding to the opposite-end network element, the available link bandwidth of the link and the link protection capability of the link, and the opposite-end equipment information is reported to the management and control system.
Further specifically, for example, the bandwidth requirement for the dedicated line in the request information of the converged dedicated line is 100M, and when the shortest path algorithm is applied to calculate and select the service path of the dedicated line to be opened, a suitable service path is selected according to the received maximum link bandwidth and the link available bandwidth of the respective corresponding links of the OTN device and the OLT device in the network, with reference to the bandwidth requirement of 100M.
Further specifically, when it is determined that at least one path exists in the to-be-opened dedicated line according to the device type and the interface capability, one path is selected as a target path according to the request information, and the target path is used for representing the path of the to-be-opened dedicated line.
specifically, after determining the device type and the interface capability of each device passing through the converged private line path, according to the home access side network or the transmission side network of each device, the configuration information of the devices is decomposed and respectively sent to the access side network element and the transmission side network element, so as to implement the configuration of the access side ONT device and the OLT device, and the end-to-end service configuration of the transmission side.
And 204, opening the special line to be opened according to the first configuration and the second configuration.
Specifically, after the access side and the transmission side complete service configuration, the service path of the private line to be opened is opened, and the service of the converged private line is opened.
Through the method of the steps 201-204, the request information of the special line to be opened is obtained; determining the equipment type and interface capacity of each equipment bearing the special line to be opened by utilizing a preset shortest path algorithm according to the request information and the network topology information received in advance; determining a first configuration of an access side network element and a second configuration of a transmission side network element according to the equipment type, the interface capability and a preset configuration rule; according to the first configuration and the second configuration, the special line to be opened is opened so as to ensure that the management and control system calculates the resource configuration of each device on the fusion special line path based on the link resource information between the OLT device and the OTN device, and then correspondingly releases the resource configuration according to the home network side of each device, so that the automatic opening of the service path in the fusion special line is realized, the opening efficiency is improved, and the labor cost is reduced.
Fig. 3 is a schematic diagram illustrating a second flow of a private line provisioning method according to an example embodiment of the present disclosure. As shown in fig. 3, the private line opening method provided in this embodiment includes:
specifically, the OLT device is connected to the OTN device through an ethernet link, and an extended LLDP protocol is run on the ethernet link, where a frame structure of the LLDP protocol is shown in fig. 4, and fig. 4 is a frame structure schematic diagram of a private line provisioning method shown in this disclosure according to an example embodiment; the added extension field is located in the LLDP data unit in fig. 4, where two items are added, that is, the link maximum bandwidth and the link available bandwidth, and the link protection capability. And the OLT equipment and the OTN equipment respectively receive data messages which are sent by an opposite end and sent in an extended LLDP protocol frame format.
More specifically, the frame format of the extended link layer discovery protocol includes: a first newly-added sub-item and a second newly-added sub-item, wherein the first sub-item is used for representing the maximum bandwidth of the link and the available bandwidth of the link; the second sub-entry is used to indicate a link protection capability. Fig. 5 is a schematic diagram of a frame structure extension item of a private line provisioning method according to an example embodiment of the present disclosure, and as shown in fig. 5, an extended field is constructed with two flag-Length-Value (TLV) structures, including: on a TLV structure of type 20, a maximum Link bandwidth and an available Link bandwidth of a port are mainly described, and a TLV structure of type 21 mainly describes Link Protection capability of the port, where P denotes whether Link Protection exists, 1 denotes Link Aggregation Group Protection (lag), and 0 denotes no Protection; and S identifies the link protection state, wherein 1 is normal, and 0 is the current no-protection capability.
specifically, after receiving a data message sent by an opposite end, the OLT device or the OTN device applies an analysis protocol rule to analyze a field carried in an extended LLDP protocol frame format to obtain opposite end device information, including: the method comprises the following steps of obtaining the name of an opposite-end network element, the port identification of the opposite-end network element, the maximum link bandwidth of a link corresponding to the opposite-end network element, the available link bandwidth of the link and the link protection capability of the link.
And step 303, sending opposite terminal equipment information, wherein the opposite terminal equipment information is one of network topology information.
Specifically, the OLT device or the OTN device reports the analyzed opposite-end device information to the management and control system, wherein the opposite-end device is one of network topology information; for example, when the OTN device is connected to the OTN device in step 202, the OTN device reports information such as a network element name, a port identifier, and an interface capability according to an update condition of the configuration parameter of the OTN device, which is also one of the network topology information.
Fig. 6 is a schematic structural diagram of a first private line connection device according to an example embodiment of the present disclosure; as shown in fig. 6, the private line opening apparatus 60 provided in this embodiment includes:
an obtaining module 601, configured to obtain request information of a dedicated line to be opened;
a first determining module 602, configured to determine, by using a preset shortest path algorithm, a device type and an interface capability of each device that carries a dedicated line to be opened according to the request information and network topology information received in advance;
a second determining module 603, configured to determine, according to the device type, the interface capability, and a preset configuration rule, a first configuration of the access-side network element and a second configuration of the transmission-side network element;
the processing module 604 is configured to open the dedicated line to be opened according to the first configuration and the second configuration.
In one possible design, the request information includes: the source end of the special line to be opened, the sink end of the special line to be opened, the bandwidth of the special line to be opened and the link protection capability of the special line to be opened.
In one possible design, the second determining module 603 is further configured to:
and when at least one path of the special line to be opened is determined according to the equipment type and the interface capability, selecting one path as a target path according to the request information, wherein the target path is used for representing the path of the special line to be opened.
Fig. 7 is a schematic structural diagram of a second private line connection device according to an example embodiment of the present disclosure; as shown in fig. 7, the private line opening apparatus 70 provided in this embodiment includes:
an obtaining module 701, configured to receive a data packet of a link layer discovery protocol; the data message is obtained by extending and then operating the frame format of a link layer discovery protocol;
a determining module 702, configured to determine, according to the data packet, peer device information by applying an analysis protocol rule, where the peer device information includes: the method comprises the following steps that the name of an opposite-end network element, the port identification of the opposite-end network element, the maximum link bandwidth of a link corresponding to the opposite-end network element, the available link bandwidth of the link and the link protection capability of the link are obtained;
a sending module 703 is configured to send peer device information, where the peer device information is one of network topology information.
In one possible design, the frame format of the extended link layer discovery protocol includes: a first newly-added sub-item and a second newly-added sub-item, wherein the first sub-item is used for representing the maximum bandwidth of the link and the available bandwidth of the link; the second sub-entry is used to indicate the link protection capability.
Fig. 8 is a schematic structural diagram of a management and control system according to an example embodiment of the present disclosure. As shown in fig. 8, the management and control system 80 according to the present embodiment includes:
a processor 801; and the number of the first and second groups,
a memory 802 for storing executable instructions for the processor, which may also be a flash (flash memory);
wherein the processor 801 is configured to perform the various steps of the above-described method via execution of executable instructions. Reference may be made in particular to the description relating to the preceding method embodiment.
Alternatively, the memory 802 may be separate or integrated with the processor 801.
When the memory 802 is a separate device from the processor 801, the database 80 may further include:
a bus 803 is used to connect the processor 801 and the memory 802.
In addition, embodiments of the present application further provide a computer-readable storage medium, in which computer-executable instructions are stored, and when at least one processor of the user equipment executes the computer-executable instructions, the user equipment executes the above-mentioned various possible methods.
Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in user equipment. Of course, the processor and the storage medium may reside as discrete components in a communication device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A private line opening method is characterized by comprising the following steps:
acquiring request information of a special line to be opened;
determining the equipment type and interface capability of each equipment bearing the special line to be opened by utilizing a preset shortest path algorithm according to the request information and pre-received network topology information, wherein the network topology information is sent by OLT equipment and OTN equipment, and the OLT equipment and the OTN equipment respectively receive data messages of a link layer discovery protocol; the data message is obtained by extending the frame format of the link layer discovery protocol and then running; according to the data message, applying an analysis protocol rule to determine opposite terminal equipment information, wherein the opposite terminal equipment information comprises: the method comprises the following steps that the name of an opposite end network element, the port identification of the opposite end network element, the maximum link bandwidth of a link corresponding to the opposite end network element, the available link bandwidth of the link and the link protection capability of the link are obtained; the opposite terminal equipment information is one of the network topology information;
determining a first configuration of an access side network element and a second configuration of a transmission side network element according to the equipment type, the interface capability and a preset configuration rule;
and according to the first configuration and the second configuration, opening the special line to be opened.
2. The method of claim 1, wherein the requesting information comprises: the source end of the special line to be opened, the sink end of the special line to be opened, the bandwidth of the special line to be opened and the link protection capability of the special line to be opened.
3. The method of claim 2, wherein before determining the first configuration of the access-side network element and the second configuration of the transmission-side network element according to the device type, the interface capability, and a preset configuration rule, the method further comprises:
and when determining that at least one path exists in the special line to be opened according to the equipment type and the interface capability, selecting one path as a target path according to the request information, wherein the target path is used for representing the path of the special line to be opened.
4. The method of claim 1, wherein the extended frame format of the link layer discovery protocol comprises: a first newly-added sub-item and a second newly-added sub-item, wherein the first sub-item is used for representing the maximum bandwidth of the link and the available bandwidth of the link; the second sub-entry is for indicating a link protection capability.
5. A private line opening device is characterized by comprising:
the acquisition module is used for acquiring request information of a special line to be opened;
a first determining module, configured to determine, by using a preset shortest path algorithm, a device type and an interface capability of each device that carries the dedicated line to be opened according to the request information and pre-received network topology information, where the network topology information is sent by an OLT device and an OTN device, and the OLT device and the OTN device respectively receive data packets of a link layer discovery protocol; the data message is obtained by extending the frame format of the link layer discovery protocol and then running; according to the data message, applying an analysis protocol rule to determine opposite terminal equipment information, wherein the opposite terminal equipment information comprises: the method comprises the following steps that the name of an opposite end network element, the port identification of the opposite end network element, the maximum link bandwidth of a link corresponding to the opposite end network element, the available link bandwidth of the link and the link protection capability of the link are obtained; the opposite terminal device information is one of the network topology information;
a second determining module, configured to determine, according to the device type, the interface capability, and a preset configuration rule, a first configuration of an access-side network element and a second configuration of a transmission-side network element;
and the processing module is used for opening the special line to be opened according to the first configuration and the second configuration.
6. A management and control system, comprising:
a processor; and (c) a second step of,
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the private line provisioning method of any one of claims 1 to 4 via execution of the executable instructions.
7. A storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements the private line opening method according to any one of claims 1 to 4.
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| CN113115135B (en) * | 2021-03-15 | 2022-10-11 | 北京直真科技股份有限公司 | VC-OTN high-quality government-enterprise private line opening method and device |
| CN114285740A (en) * | 2021-12-08 | 2022-04-05 | 中国联合网络通信集团有限公司 | Special line resource allocation method and device, electronic equipment and storage medium |
| CN114500260B (en) * | 2022-01-07 | 2022-11-08 | 广东云下汇金科技有限公司 | Method, equipment and medium for building two-layer virtual private line network |
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