CN112533082B

CN112533082B - Link resource discovery method, device, equipment and computer readable storage medium

Info

Publication number: CN112533082B
Application number: CN201910875524.8A
Authority: CN
Inventors: 赵阳; 李允博; 王东; 张德朝; 李晗
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2023-11-21
Anticipated expiration: 2039-09-17
Also published as: CN112533082A; WO2021052248A1

Abstract

The invention discloses a method, a device, equipment and a computer readable storage medium for discovering link resources, which relate to the technical field of communication and are used for solving the problem that inter-domain resources cannot be automatically discovered. The method comprises the following steps: receiving first discovery information sent by second OTN equipment, wherein the first discovery information is carried in a second TCM and comprises second identification information of the second OTN equipment; and sending a first message to a first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first NEP update message to a super controller according to the first message. The embodiment of the invention can automatically discover the inter-domain resources.

Description

Link resource discovery method, device, equipment and computer readable storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a computer readable storage medium for discovering link resources.

Background

In an OTN (Optical Transport Network ) network based on SDN (Software Defined Network, software defined network), automatic discovery of a link layer is a vendor private scheme, and the industry does not have a perfect unified implementation scheme. Therefore, the domain controller can realize the automatic discovery of the resources and topology of the equipment of the same manufacturer and report the resources and topology to the controller of the manufacturer.

However, in the case of the OTN networking of different manufacturers, irDI (Inter-Domain Interface) interfaces are used to interconnect the OTN devices, so that the automatic discovery mechanisms of different manufacturers are inconsistent, or some manufacturers do not support link automatic discovery, and therefore, automatic resource discovery cannot be achieved.

Disclosure of Invention

The embodiment of the invention provides a method, a device, equipment and a computer readable storage medium for discovering link resources, which are used for solving the problem that inter-domain resources cannot be automatically discovered.

In a first aspect, an embodiment of the present invention provides a link resource discovery method, which is applied to a first OTN device, including:

receiving first discovery information sent by a second OTN device, wherein the first discovery information is carried in a second TCM (Tandem Connection Monitoring, serial monitor), and includes second identification information of the second OTN device;

sending a first message to a first domain controller, wherein the first message includes the first discovery information, so that the first domain controller sends a first NEP (Node Edge Point) update message to a super controller according to the first message;

the first OTN equipment is subordinate to the first domain controller, and the second OTN equipment is subordinate to the second domain controller.

Wherein the number of the second TCM is selected from a first set, and the first set is {1,2,3,4,5,6}; the second identification information includes: and the domain identification of the second OTN equipment, and the IP address and port information of the second OTN equipment.

Wherein the method further comprises:

receiving a first TCM (TCM) number and a first domain identifier sent by the first domain controller, wherein the first TCM number and the first domain identifier are configured by the super controller;

the number of the first TCM is selected from a first set, wherein the first set is {1,2,3,4,5,6}.

Wherein the method further comprises:

sending second discovery information to the second OTN device, wherein the second discovery information is carried in the first TCM and includes first identification information;

the first identification information includes: the domain identifier of the first OTN device, the IP address and the port information of the first OTN device.

In a second aspect, an embodiment of the present invention provides a link resource discovery method, applied to a first domain controller, including:

receiving a first message sent by a first OTN device, wherein the first message comprises first discovery information sent by a second OTN device to the first OTN device, and the first discovery information is carried in a second TCM and comprises second identification information;

According to the first message, a first NEP update message is sent to the super controller;

Wherein, according to the first message, sending a first NEP update message to the super controller includes:

determining a first port that receives the first message;

encapsulating the second identification information into an external port attribute of the first port to form the first NEP update message;

and sending the first NEP update message to the super controller.

The second identification information includes a domain identification of the second OTN device, an IP address and port information of the second OTN device.

Wherein the method further comprises:

and receiving configuration information of the super controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

Wherein the configuration information is received through a resource discovery parameter configuration interface.

In a third aspect, an embodiment of the present invention provides a link resource discovery method, applied to a super controller, including:

Receiving a first NEP update message sent by a first domain controller;

establishing connection between different domains according to the first NEP update message;

wherein, the first NEP update message is encapsulated with second identification information;

the second identification information is sent to the first OTN device by the second OTN device through the first discovery information, and is sent to the first domain controller by the first OTN device; the first discovery information is carried in a second TCM;

the first OTN device is subordinate to the first domain controller, and the second OTN device is subordinate to the second domain controller.

Wherein, the establishing connection between different domains according to the first NEP update message includes:

analyzing the first NEP update message to obtain the second identification information, wherein the second identification information comprises: the domain identifier of the second OTN device, the IP address and the port information of the second OTN device;

and establishing connection between the first OTN equipment and the second OTN equipment according to the second identification information.

Wherein the method further comprises:

receiving a second NEP update message sent by a second domain controller, wherein third identification information is packaged in the second NEP update message;

The establishing a connection between the first OTN device and the second OTN device includes:

determining whether the third identification information is the identification information of the first OTN device;

and establishing connection between the first OTN equipment and the second OTN equipment under the condition that the third identification information is the identification information of the first OTN equipment.

Wherein the method further comprises:

and sending configuration information to the first domain controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

The number of the first TCM is selected from a first set, and the first set is {1,2,3,4,5,6}.

Wherein the sending configuration information to the first domain controller includes:

and sending configuration information to the first domain controller through a resource discovery parameter configuration interface.

In a fourth aspect, an embodiment of the present invention provides a link resource discovery apparatus, which is applied to a first OTN device, including:

the first receiving module is used for receiving first discovery information sent by the second OTN equipment, wherein the first discovery information is carried in a second TCM and comprises second identification information of the second OTN equipment;

The first sending module is used for sending a first message to the first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first node edge port NEP update message to the super controller according to the first message;

Wherein the apparatus further comprises:

a second receiving module, configured to receive a number of a first TCM and a first domain identifier sent by the first domain controller, where the number of the first TCM and the first domain identifier are configured by the super controller; the number of the first TCM is selected from a first set, wherein the first set is {1,2,3,4,5,6}.

Wherein the apparatus further comprises:

a second sending module, configured to send second discovery information to the second OTN device, where the second discovery information is carried in the first TCM and includes first identification information;

In a fifth aspect, an embodiment of the present invention provides a link resource discovery apparatus, applied to a first domain controller, including:

a first receiving module, configured to receive a first message sent by a first OTN device, where the first message includes first discovery information sent by a second OTN device to the first OTN device, where the first discovery information is carried in a second TCM and includes second identification information;

the first sending module is used for sending a first NEP update message to the super controller according to the first message;

Wherein, the first sending module includes:

a determining submodule for determining a first port for receiving the first message;

the encapsulation submodule is used for encapsulating the second identification information into the external port attribute of the first port to form the first NEP update message;

and the sending sub-module is used for sending the first NEP update message to the super controller.

Wherein the apparatus further comprises:

the second receiving sub-module is used for receiving configuration information of the super controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

In a sixth aspect, an embodiment of the present invention provides a link resource discovery apparatus, applied to a super controller, including:

the first receiving module is used for receiving a first NEP update message sent by the first domain controller;

the processing module is used for establishing connection between different domains according to the first NEP update message;

Wherein the processing module comprises:

the analyzing sub-module is configured to analyze the first NEP update message to obtain the second identification information, where the second identification information includes: the domain identifier of the second OTN device, the IP address and the port information of the second OTN device;

and the processing sub-module is used for establishing connection between the first OTN equipment and the second OTN equipment according to the second identification information.

Wherein the apparatus further comprises:

the second receiving module is used for receiving a second NEP update message sent by the second domain controller, and third identification information is packaged in the second NEP update message;

the processing sub-module comprises:

a determining unit, configured to determine whether the third identification information is identification information of the first OTN device;

and the processing unit is used for establishing connection between the first OTN equipment and the second OTN equipment under the condition that the third identification information is the identification information of the first OTN equipment.

Wherein the apparatus further comprises:

the first sending module is configured to send configuration information to the first domain controller, where the configuration information includes a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

The first sending module is specifically configured to send configuration information to the first domain controller through a resource discovery parameter configuration interface.

In a seventh aspect, an embodiment of the present invention provides a link resource discovery apparatus, which is applied to a first OTN device, including: a processor and a transceiver;

the transceiver is configured to receive first discovery information sent by a second OTN device, where the first discovery information is carried in a second TCM and includes second identification information of the second OTN device; and sending a first message to a first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first node edge port NEP update message to a super controller according to the first message;

The transceiver is further configured to receive a number of a first TCM and a first domain identifier sent by the first domain controller, where the number of the first TCM and the first domain identifier are configured by the super controller; the number of the first TCM is selected from a first set, wherein the first set is {1,2,3,4,5,6}.

The transceiver is further configured to send second discovery information to the second OTN device, where the second discovery information is carried in the first TCM and includes first identification information;

In an eighth aspect, an embodiment of the present invention provides a link resource discovery apparatus, applied to a first domain controller, including: a processor and a transceiver;

Wherein the processor is configured to determine a first port that receives the first message; encapsulating the second identification information into an external port attribute of the first port to form the first NEP update message; and sending the first NEP update message to the super controller.

The transceiver is further configured to receive configuration information of the super controller, where the configuration information includes a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

In a ninth aspect, an embodiment of the present invention provides a link resource discovery apparatus, which is applied to a super controller, including: a processor and a transceiver;

the transceiver is configured to receive a first NEP update message sent by the first domain controller;

The processor is configured to establish a connection between different domains according to the first NEP update message;

The processor is further configured to parse the first NEP update message to obtain the second identification information, where the second identification information includes: the domain identifier of the second OTN device, the IP address and the port information of the second OTN device; and establishing connection between the first OTN equipment and the second OTN equipment according to the second identification information.

The transceiver is further configured to receive a second NEP update message sent by the second domain controller, where the second NEP update message encapsulates third identification information;

the processor is further configured to determine whether the third identification information is identification information of the first OTN device; and establishing connection between the first OTN equipment and the second OTN equipment under the condition that the third identification information is the identification information of the first OTN equipment.

The transceiver is further configured to send configuration information to the first domain controller, where the configuration information includes a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

The transceiver is further configured to send configuration information to the first domain controller through a resource discovery parameter configuration interface.

In a tenth aspect, an embodiment of the present invention provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;

the processor is configured to read a program in the memory to implement the steps in the method according to the first aspect; or to implement the steps in the method as described in the second aspect; or to implement the steps in the method as described in the third aspect.

In an eleventh aspect, an embodiment of the present invention provides a computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the method according to the first aspect; or to implement the steps in the method as described in the second aspect; or to implement the steps in the method as described in the third aspect.

In the embodiment of the present invention, the second OTN device may send discovery information to the first OTN device through the second TCM, so that the first OTN device sends information of the second OTN device to the super controller to the first domain controller, and the super controller establishes connection between the first OTN device and the second OTN device. Therefore, by utilizing the scheme of the embodiment of the invention, the automatic discovery of the resources among different domains is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 is one of flowcharts of a link resource discovery method provided by an embodiment of the present invention;

FIG. 2 is a diagram of a field screenshot for ITU G.7714;

fig. 3 is a second flowchart of a link resource discovery method according to an embodiment of the present invention;

fig. 4 is a third flowchart of a link resource discovery method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a system provided by an embodiment of the present invention;

fig. 6 is a flowchart of a link resource discovery method according to an embodiment of the present invention;

fig. 7 is a diagram of one of the structures of a link resource discovery apparatus provided in the embodiment of the present invention;

fig. 8 is a second block diagram of a link resource discovery apparatus according to an embodiment of the present invention;

fig. 9 is a third block diagram of a link resource discovery apparatus according to an embodiment of the present invention;

fig. 10 is a diagram showing a structure of a link resource discovery apparatus according to an embodiment of the present invention;

fig. 11 is a diagram showing a configuration of a link resource discovery apparatus according to an embodiment of the present invention;

fig. 12 is a diagram showing a structure of a link resource discovery apparatus according to an embodiment of the present invention;

fig. 13 is one of the block diagrams of the communication device provided in the embodiment of the present invention;

FIG. 14 is a second block diagram of a communication device according to an embodiment of the present invention;

fig. 15 is a third block diagram of the communication device according to the embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1, fig. 1 is a flowchart of a link resource discovery method provided by an embodiment of the present invention, which is applied to a first OTN device, as shown in fig. 1, and includes the following steps:

step 101, receiving first discovery information sent by a second OTN device, where the first discovery information is carried in a second TCM and includes second identification information of the second OTN device.

The first OTN equipment is subordinate to the first domain controller, and the second OTN equipment is subordinate to the second domain controller. That is, the first OTN device and the second OT device are located in different domains.

In the embodiment of the invention, the TCM6 defined in the standard is expanded into TCM (1-6) flexible and configurable. That is, the TCM is numbered from a first set of {1,2,3,4,5,6}. Then what the number of a particular TCM is, the configuration is made by the super controller.

Therefore, in the embodiment of the present invention, the number of the second TCM is selected from the first set. Wherein the second identification information includes: and the domain identification of the second OTN equipment, and the IP address and port information of the second OTN equipment.

Specifically, as shown in fig. 2, a diagram of a field screenshot of ITU g.7714 is shown. In the embodiment of the invention, the meaning of the field is expanded, wherein the specific field content defines:

(1) 0DA DCN context ID: a 16bit, domain identification, issued by the controller;

(2) DA DCN address:32bit, using the IP v4 (Internet Protocol version, internet protocol version 4) address of the OTN device itself;

(3) Local TCP-ID:32 bits, specific port information, subrack (8 bits) +slot (8 bits) +daughter card (8 bits) +port number (8 bits).

Then, for the second OTN device, its domain identifier, the IP address and the port information of the second OTN device are respectively carried in the above three fields.

Step 102, a first message is sent to a first domain controller, and the first message includes the first discovery information, so that the first domain controller sends a first NEP update message to a super controller according to the first message.

On the basis of the above embodiment, the first OTN device may further include: receiving a first TCM (TCM) number and a first domain identifier sent by the first domain controller, wherein the first TCM number and the first domain identifier are configured by the super controller; the number of the first TCM is selected from a first set, wherein the first set is {1,2,3,4,5,6}. Wherein the number of the first TCM may be different from the number of the second TCM.

In order to better perform discovery of different inter-domain resources, the first OTN device may further send second discovery information to the second OTN device, where the second discovery information is carried in the first TCM and includes first identification information; the first identification information includes: the domain identifier of the first OTN device, the IP address and the port information of the first OTN device.

Referring to fig. 3, fig. 3 is a flowchart of a link resource discovery method according to an embodiment of the present invention, which is applied to a first domain controller, as shown in fig. 3, and includes the following steps:

step 301, receiving a first message sent by a first OTN device, where the first message includes first discovery information sent by a second OTN device to the first OTN device, where the first discovery information is carried in a second TCM and includes second identification information.

Step 302, according to the first message, a first NEP update message is sent to the super controller.

In the embodiment of the invention, the information model of the controller and the interface specification are expanded, so that the report of the result after the discovery of the inter-domain resources is realized.

Setting a resource discovery parameter configuration interface (setdiscovery parameter) between the domain controller and the super controller, wherein the definition of the resource discovery parameter configuration interface is as shown in table 1:

TABLE 1

Through the above table, the super controller can transmit the number, domain identification, etc. of the configured TCM to the domain controller through the interface. Meanwhile, the domain controller can also return a response message, such as a configured domain identifier, a set number of the TCM, etc., to the super controller through the interface. Alternatively, the response message may be a prompt message such as a successful configuration or a failure configuration.

Meanwhile, in the embodiment of the present invention, in a defined port (node edge port) object, an ExternalPort is newly added, which is used to represent ports of other domains discovered through neighbors. The properties of the NodeEdgePoint are shown in Table 2:

TABLE 2

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Wherein, the attribute of ExternalPort is shown in table 3:

TABLE 3 Table 3

Therefore, based on the above extension, the discovered neighbor ports can report the NEP status update to the super controller through the notification mechanism by the domain controller. And after receiving the notification, the super controller acquires the information of the opposite terminal.

Specifically, in this step, the first domain controller determines a first port that receives the first message, and then encapsulates the second identification information into an external port attribute of the first port to form the first NEP update message. And then, sending the first NEP update message to the super controller. The second identification information includes a domain identification of the second OTN device, an IP address of the second OTN device, and port information.

On the basis of the above embodiment, the method may further include: and receiving configuration information of the super controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller. Wherein the configuration information is received through a resource discovery parameter configuration interface.

Referring to fig. 4, fig. 4 is a flowchart of a link resource discovery method according to an embodiment of the present invention, which is applied to a super controller, as shown in fig. 4, and includes the following steps:

step 401, receiving a first NEP update message sent by a first domain controller.

Wherein, the first NEP update message is encapsulated with second identification information; the second identification information is sent to the first OTN device by the second OTN device through the first discovery information, and is sent to the first domain controller by the first OTN device; the first discovery information is carried in a second TCM; the first OTN device is subordinate to the first domain controller, and the second OTN device is subordinate to the second domain controller.

Step 402, establishing connection between different domains according to the first NEP update message.

In this step, the first NEP update message is parsed to obtain the second identification information, where the second identification information includes: and the domain identification of the second OTN equipment, and the IP address and port information of the second OTN equipment. And then, establishing connection between the first OTN equipment and the second OTN equipment according to the second identification information.

Further, on the basis of the foregoing embodiment, the super controller may further receive a second NEP update message sent by the second domain controller, where the second NEP update message encapsulates third identification information. Then, at the time of establishing a connection, it is determined whether the third identification information is identification information of the first OTN device. And then, establishing connection between the first OTN equipment and the second OTN equipment under the condition that the third identification information is the identification information of the first OTN equipment. In this way, the accuracy of the established connection can be ensured.

Referring to fig. 5, fig. 5 is a schematic diagram of a system provided by an embodiment of the present invention. In the embodiment of the invention, on one hand, the automatic discovery of the resources at the transmission layer can be realized, and on the other hand, the interactive interface between the Domain Controller (DC) and the Super Controller (SC) can be realized, so that the automatic discovery of the resources can be realized fully automatically.

Referring to fig. 6, the link resource discovery method according to the embodiment of the present invention includes:

in step 601, the super controller uses the setdiscover parameter interface to issue relevant parameters (such as a domain identifier and the number of the TCM) to devices (which may be all devices in each domain) that need to perform automatic discovery of resources.

In step 602, the devices at both ends of the link to be discovered encapsulate the discovery information of the local end, including the domain identifier, the IP address, and the port information, through TCM X (X is the TCM number issued by the super controller) in the TTI (Trial Trace Identifier, the path trace identifier). And simultaneously, the packaged information is sent to the corresponding domain controller.

Step 603, the domain controller detects information in the overhead of each port TCM X, if the discovery information is read, the opposite end information in the discovery information is filled into the_externalportinfo object corresponding to the port (NEP) that receives the discovery information, and a notification of the corresponding NEP update is sent to the super controller.

Step 604, after receiving the notification, the super controller updates the corresponding NEP information, and associates the opposite terminal information to the corresponding NEP to form inter-domain connectivity and link information.

In step 604, the super controller generates inter-domain connection and resource information after receiving the neighbor information reported by the domain controller.

Specifically, referring to fig. 5, if NEP update information of the OTN device at the a end is received, the super controller may locate NEP of the OTN device at the B end according to the domain identifier, the IP address, the port information, and the like in the_externalportinfo. Thereafter, an inter-domain link of a to B is generated.

In another implementation, if NEP update information of the OTN device of the a-side is received, the super controller may locate NEP of the OTN device of the B-side according to the domain identification, the IP address, the port information, and the like in the_externalportinfo. Then, it is determined whether NEP update information of the OTN device of the B-side is received. If so, determining whether NEP corresponding to the discovery information received by the NEP at the B end is the A end. If yes, generating an inter-domain link from A to B, otherwise, not generating the inter-domain link.

From the above description, it can be seen that the scheme of the embodiment of the invention is applicable to multi-domain scenarios, and can realize automatic discovery of resources of different manufacturers.

The embodiment of the invention also provides a link resource discovery device which is applied to the first OTN equipment. Referring to fig. 7, fig. 7 is a block diagram of a link resource discovery apparatus according to an embodiment of the present invention. Since the principle of the link resource discovery device for solving the problem is similar to that of the link resource discovery method in the embodiment of the present invention, the implementation of the link resource discovery device can refer to the implementation of the method, and the repetition is omitted. As shown in fig. 7, the link resource discovery apparatus includes:

A first receiving module 701, configured to receive first discovery information sent by a second OTN device, where the first discovery information is carried in a second TCM and includes second identification information of the second OTN device; a first sending module 702, configured to send a first message to a first domain controller, where the first message includes the first discovery information, so that the first domain controller sends a first node edge port NEP update message to a super controller according to the first message; the first OTN equipment is subordinate to the first domain controller, and the second OTN equipment is subordinate to the second domain controller.

Wherein the apparatus further comprises:

The device provided by the embodiment of the present invention may execute the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.

The embodiment of the invention also provides a device for discovering the link resources, which is applied to the first domain controller. Referring to fig. 8, fig. 8 is a block diagram of a link resource discovery apparatus according to an embodiment of the present invention. Since the principle of the link resource discovery device for solving the problem is similar to that of the link resource discovery method in the embodiment of the present invention, the implementation of the link resource discovery device can refer to the implementation of the method, and the repetition is omitted. As shown in fig. 8, the link resource discovery apparatus includes:

a first receiving module 801, configured to receive a first message sent by a first OTN device, where the first message includes first discovery information sent by a second OTN device to the first OTN device, where the first discovery information is carried in a second TCM and includes second identification information; a first sending module 802, configured to send a first NEP update message to a super controller according to the first message;

Wherein, the first sending module includes:

a determining submodule for determining a first port for receiving the first message; the encapsulation submodule is used for encapsulating the second identification information into the external port attribute of the first port to form the first NEP update message; and the sending sub-module is used for sending the first NEP update message to the super controller.

Wherein the apparatus further comprises:

The embodiment of the invention also provides a device for discovering the link resources, which is applied to the super controller. Referring to fig. 9, fig. 9 is a block diagram of a link resource discovery apparatus according to an embodiment of the present invention. Since the principle of the link resource discovery device for solving the problem is similar to that of the link resource discovery method in the embodiment of the present invention, the implementation of the link resource discovery device can refer to the implementation of the method, and the repetition is omitted. As shown in fig. 9, the link resource discovery apparatus includes:

a first receiving module 901, configured to receive a first NEP update message sent by a first domain controller; a processing module 902, configured to establish a connection between different domains according to the first NEP update message;

Wherein the processing module comprises:

The analyzing sub-module is configured to analyze the first NEP update message to obtain the second identification information, where the second identification information includes: the domain identifier of the second OTN device, the IP address and the port information of the second OTN device; and the processing sub-module is used for establishing connection between the first OTN equipment and the second OTN equipment according to the second identification information.

Wherein the apparatus further comprises:

the processing sub-module comprises:

a determining unit, configured to determine whether the third identification information is identification information of the first OTN device; and the processing unit is used for establishing connection between the first OTN equipment and the second OTN equipment under the condition that the third identification information is the identification information of the first OTN equipment.

Wherein the apparatus further comprises:

The embodiment of the invention also provides a link resource discovery device which is applied to the first OTN equipment. Referring to fig. 10, fig. 10 is a block diagram of a link resource discovery apparatus according to an embodiment of the present invention. Since the principle of the link resource discovery device for solving the problem is similar to that of the link resource discovery method in the embodiment of the present invention, the implementation of the link resource discovery device can refer to the implementation of the method, and the repetition is omitted. As shown in fig. 10, the link resource discovery apparatus includes: a processor 1001 and a transceiver 1002;

the transceiver 1002 is configured to receive first discovery information sent by a second OTN device, where the first discovery information is carried in a second TCM and includes second identification information of the second OTN device; and sending a first message to a first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first node edge port NEP update message to a super controller according to the first message;

The transceiver 1002 is further configured to receive a number of a first TCM and a first domain identifier sent by the first domain controller, where the number of the first TCM and the first domain identifier are configured by the super controller; the number of the first TCM is selected from a first set, wherein the first set is {1,2,3,4,5,6}.

The transceiver 1002 is further configured to send second discovery information to the second OTN device, where the second discovery information is carried in the first TCM and includes first identification information; the first identification information includes: the domain identifier of the first OTN device, the IP address and the port information of the first OTN device.

The embodiment of the invention also provides a device for discovering the link resources, which is applied to the first domain controller. Referring to fig. 11, fig. 11 is a block diagram of a link resource discovery apparatus according to an embodiment of the present invention. Since the principle of the link resource discovery device for solving the problem is similar to that of the link resource discovery method in the embodiment of the present invention, the implementation of the link resource discovery device can refer to the implementation of the method, and the repetition is omitted. As shown in fig. 11, the link resource discovery apparatus includes: a processor 1101 and a transceiver 1102;

the transceiver 1102 is configured to receive first discovery information sent by a second OTN device, where the first discovery information is carried in a second TCM and includes second identification information of the second OTN device; and sending a first message to a first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first node edge port NEP update message to a super controller according to the first message;

Wherein the processor 1101 is configured to determine a first port for receiving the first message; encapsulating the second identification information into an external port attribute of the first port to form the first NEP update message; and sending the first NEP update message to the super controller.

The transceiver 1102 is further configured to receive configuration information of the super controller, where the configuration information includes a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

The embodiment of the invention also provides a device for discovering the link resources, which is applied to the super domain controller. Referring to fig. 12, fig. 12 is a block diagram of a link resource discovery apparatus according to an embodiment of the present invention. Since the principle of the link resource discovery device for solving the problem is similar to that of the link resource discovery method in the embodiment of the present invention, the implementation of the link resource discovery device can refer to the implementation of the method, and the repetition is omitted. As shown in fig. 12, the link resource discovery apparatus includes: a processor 1201 and a transceiver 1202;

The transceiver 1202 is configured to receive a first NEP update message sent by a first domain controller;

the processor 1201 is configured to establish a connection between different domains according to the first NEP update message;

The processor 1201 is further configured to parse the first NEP update message to obtain the second identification information, where the second identification information includes: the domain identifier of the second OTN device, the IP address and the port information of the second OTN device; and establishing connection between the first OTN equipment and the second OTN equipment according to the second identification information.

Wherein the processor 1201 is further configured to determine whether the third identification information is identification information of the first OTN device; and establishing connection between the first OTN equipment and the second OTN equipment under the condition that the third identification information is the identification information of the first OTN equipment.

The transceiver 1202 is further configured to send configuration information to the first domain controller, where the configuration information includes a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller.

Wherein the transceiver 1202 is further configured to send configuration information to the first domain controller via a resource discovery parameter configuration interface.

As shown in fig. 13, the communication device according to the embodiment of the present invention is applied to a first OTN device, and includes:

processor 1300, for reading the program in memory 1320, performs the following procedure: receiving, by the transceiver 1310, first discovery information sent by a second OTN device, where the first discovery information is carried in a second TCM and includes second identification information of the second OTN device; sending a first message to a first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first NEP update message to a super controller according to the first message; the first OTN equipment is subordinate to the first domain controller, and the second OTN equipment is subordinate to the second domain controller.

A transceiver 1310 for receiving and transmitting data under the control of the processor 1300.

Where in FIG. 13, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, specifically represented by processor 1300, and the memory, represented by memory 1320, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1310 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1300 in performing operations.

The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1300 in performing operations.

The processor 1300 is further configured to read the computer program, and perform the following steps:

As shown in fig. 14, a communication device according to an embodiment of the present invention is applied to a first domain controller, and includes:

processor 1400, for reading the program in memory 1420, performs the following process: receiving, by the transceiver 1410, a first message sent by a first OTN device, where the first message includes first discovery information sent by a second OTN device to the first OTN device, where the first discovery information is carried in a second TCM and includes second identification information; according to the first message, a first NEP update message is sent to the super controller; the first OTN equipment is subordinate to the first domain controller, and the second OTN equipment is subordinate to the second domain controller.

A transceiver 1410 for receiving and transmitting data under the control of the processor 1400.

Wherein in fig. 14, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1400 and various circuits of the memory represented by the memory 1420, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1410 may be a number of elements, i.e., include a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1400 in performing operations.

The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1400 in performing operations.

The processor 1400 is also configured to read the computer program, and perform the following steps:

determining a first port that receives the first message;

and sending the first NEP update message to the super controller.

The second identification information includes a domain identification of the second OTN device, an IP address of the second OTN device, and port information.

As shown in fig. 15, a communication device according to an embodiment of the present invention is applied to a super controller, and includes:

processor 1500, for reading the program in memory 1520, performs the following process: receiving, by the transceiver 1510, a first NEP update message sent by a first domain controller; establishing connection between different domains according to the first NEP update message; wherein, the first NEP update message is encapsulated with second identification information; the second identification information is sent to the first OTN device by the second OTN device through the first discovery information, and is sent to the first domain controller by the first OTN device; the first discovery information is carried in a second TCM; the first OTN device is subordinate to the first domain controller, and the second OTN device is subordinate to the second domain controller.

A transceiver 1510 for receiving and transmitting data under the control of the processor 1500.

Where in FIG. 15, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, as represented by processor 1500, and the memory, as represented by memory 1520, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1500 in performing operations.

The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1500 in performing operations.

The processor 1500 is further configured to read the computer program, and perform the following steps:

Furthermore, a computer-readable storage medium of an embodiment of the present invention stores a computer program executable by a processor to implement the steps of:

receiving first discovery information sent by second OTN equipment, wherein the first discovery information is carried in a second TCM and comprises second identification information of the second OTN equipment;

sending a first message to a first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first NEP update message to a super controller according to the first message;

Wherein the method further comprises:

Determining a first port that receives the first message;

and sending the first NEP update message to the super controller.

Wherein the method further comprises:

receiving a first NEP update message sent by a first domain controller;

Wherein the method further comprises:

In the several embodiments provided in the present application, it should be understood that the disclosed methods and apparatus may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. The link resource discovery method is applied to the first optical transport network OTN equipment and is characterized by comprising the following steps:

receiving first discovery information sent by a second OTN device, wherein the first discovery information is carried in a second serial connection monitor TCM and comprises second identification information of the second OTN device;

Sending a first message to a first domain controller, wherein the first message comprises the first discovery information, so that the first domain controller sends a first node edge port NEP update message to a super controller according to the first message;

wherein the first OTN device is subordinate to the first domain controller, and the second OTN device is subordinate to the second domain controller;

the number of the second TCM is selected from the first set and is configured by the super controller;

wherein the method further comprises:

receiving a first TCM (TCM) number and a first domain identifier sent by the first domain controller, wherein the first TCM number and the first domain identifier are configured to the first domain controller by the super controller through a resource discovery parameter configuration interface arranged between the first domain controller and the super controller;

the second identification information includes: and the domain identification of the second OTN equipment, and the IP address and port information of the second OTN equipment.

2. The method according to claim 1, wherein the method further comprises:

the number of the first TCM and the value of the second TCM are selected from a first set, wherein the first set is {1,2,3,4,5,6}.

3. The method according to claim 2, wherein the method further comprises:

4. A link resource discovery method applied to a first domain controller, comprising:

wherein the method further comprises:

receiving configuration information of the super controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller;

Wherein the configuration information is received through a resource discovery parameter configuration interface provided between the first domain controller and the super controller;

5. The method of claim 4, wherein the sending a first NEP update message to a super controller based on the first message comprises:

determining a first port that receives the first message;

and sending the first NEP update message to the super controller.

6. A link resource discovery method applied to a super controller, comprising:

receiving a first NEP update message sent by a first domain controller;

The first OTN equipment is subordinate to the first domain controller, and the second OTN equipment is subordinate to the second domain controller;

wherein the method further comprises:

transmitting configuration information to the first domain controller through a resource discovery parameter configuration interface arranged between the first domain controller and the super controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller;

wherein the second identification information includes: and the domain identification of the second OTN equipment, and the IP address and port information of the second OTN equipment.

7. The method of claim 6, wherein establishing a connection between different domains based on the first NEP update message comprises:

analyzing the first NEP update message to obtain the second identification information;

8. The method of claim 7, wherein the method further comprises:

9. The method of claim 6, wherein the number of the first TCM and the number of the second TCM are selected from a first set, the first set being {1,2,3,4,5,6}.

10. A link resource discovery apparatus applied to a first OTN device, comprising:

wherein the apparatus further comprises:

the second receiving module is used for receiving the number of the first TCM and the first domain identifier sent by the first domain controller, wherein the number of the first TCM and the first domain identifier are configured to the first domain controller by the super controller through a resource discovery parameter configuration interface arranged between the first domain controller and the super controller;

11. A link resource discovery apparatus for use in a first domain controller, comprising:

wherein the apparatus further comprises:

the second receiving sub-module is used for receiving configuration information of the super controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller; wherein the configuration information is received through a resource discovery parameter configuration interface provided between the first domain controller and the super controller;

12. A link resource discovery apparatus for use in a super controller, comprising:

wherein the apparatus further comprises:

the first sending module is used for sending configuration information to the first domain controller through a resource discovery parameter configuration interface arranged between the first domain controller and the super controller, wherein the configuration information comprises a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller;

13. A link resource discovery apparatus applied to a first OTN device, comprising: a processor and a transceiver;

the transceiver is further configured to receive a number of a first TCM and a first domain identifier sent by the first domain controller, where the number of the first TCM and the first domain identifier are configured by the super controller; wherein the configuration information is received through a resource discovery parameter configuration interface provided between the first domain controller and the super controller;

14. A link resource discovery apparatus for use in a first domain controller, comprising: a processor and a transceiver;

the processor is further configured to receive configuration information of the super controller, where the configuration information includes a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller;

15. A link resource discovery apparatus for use in a super controller, comprising: a processor and a transceiver;

the transceiver is further configured to send configuration information to the first domain controller through a resource discovery parameter configuration interface set between the first domain controller and the super controller, where the configuration information includes a first domain identifier corresponding to the first domain controller and a number of a first TCM corresponding to the first domain controller;

16. A communication device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the method comprises the steps of,

the processor for reading a program in a memory to implement the steps in the method of any one of claims 1 to 3; or to carry out the steps of the method according to any one of claims 4 to 5; or to carry out the steps of the method according to any one of claims 6 to 9.

17. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 3; or to carry out the steps of the method according to any one of claims 4 to 5; or to carry out the steps of the method according to any one of claims 6 to 9.