CN106341252A - Resource management method and device and control terminal - Google Patents

Abstract

The present invention provides a resource management method, device and control terminal, wherein the resource management method includes: initiating a control connection to a routing and forwarding device; resource information, wherein the above resource information includes: the identification of one or more resources of the routing and forwarding device, and the attribute information of each resource in the above one or more resources; managing the routing and forwarding device at least according to the identification of the above routing and forwarding device resource information. The present invention solves the problem in the related art that the control terminal cannot realize the unified management of the resources in the equipment, and further achieves the effect of realizing the unified management of the resources in the equipment by the control terminal.

Description

Resource management method, device and control terminal

technical field

The present invention relates to the communication field, in particular, to a resource management method, device and control terminal.

Background technique

The Internet Engineering Task Force (IETF) proposed the concept of an open interface to the routing system (Interface to the Routing System, referred to as I2RS), hoping to solve the problem of traditional network equipment by opening the interface of the routing system on the control plane. The problem of orderly evolution of Switched Data Network (SDN for short).

Fig. 1 is the architecture diagram of the I2RS system according to the embodiment of the present invention, its core idea is to open a new interface to communicate with the external control terminal on the basis of the routing and forwarding system of the traditional network equipment at present, and the external control terminal (Client) learns each Network device resources, routing configuration, traffic statistics and other information are learned from the network topology structure diagram, and then the routing status and policies are dynamically distributed to each device. It can be seen from this that I2RS continues to use the structure and functions of routing and forwarding in traditional network equipment, and expands and enriches the functions on this basis, laying the foundation for the programmability of network equipment and providing users with Innovation provides a strong guarantee.

However, the same as the traditional configuration management idea, the I2RS architecture system has not yet provided clear components to realize resource management. For the control terminal of the I2RS system, after establishing communication with the device, the device resource information cannot be obtained immediately; when the control terminal initiates a query, It can also only query resource information based on business, lacking a unified management and control of resources; when device resources change, the device only reports business-based event notifications to the external control terminal. At the same time, due to the lack of a resource negotiation mechanism between the control terminal and the device, when the resource of the device changes, the consistency between the resource data of the control terminal and the device cannot be guaranteed. It can be seen that, in the related art, there is a problem that the unified management of resources in the device by the control terminal cannot be realized.

Aiming at the problem in related technologies that the control terminal cannot implement unified management of resources in the device, no effective solution has been proposed yet.

Contents of the invention

The present invention provides a resource management method, device and control terminal to at least solve the problem in the related art that the control terminal cannot manage the resources in the equipment in a unified manner.

According to one aspect of the present invention, a resource management method is provided, including: initiating a control connection to a routing and forwarding device; after initiating the control connection, at least acquiring the identifier of the routing and forwarding device and the ID of the routing and forwarding device Resource information, wherein the resource information includes: an identifier of one or more resources of the routing and forwarding device, attribute information of each resource in the one or more resources; at least according to the identifier of the routing and forwarding device Manage resource information of the routing and forwarding device.

Optionally, acquiring at least the identifier of the routing forwarding device and the resource information of the routing forwarding device includes at least one of the following: when exchanging capabilities with the routing forwarding device, acquiring the identifier of the routing forwarding device and the Resource information of the routing and forwarding device; when exchanging capabilities with the routing and forwarding device, obtain the identifier of the routing and forwarding device; use the user name of the control terminal to establish a communication connection with the routing and forwarding device according to the identifier of the routing and forwarding device ; Initiating a query request to the routing forwarding device for querying the resource information of the routing forwarding device after the communication connection is established; receiving the resource information returned by the routing forwarding device according to the query request.

Optionally, after the control connection is initiated, the method further includes: acquiring a resource change sequence of the routing and forwarding device, where the resource changing sequence is used to indicate information that resources of the routing and forwarding device change; at least according to Managing the resource information of the routing and forwarding device with the identifier of the routing and forwarding device includes: updating the resource information of the routing and forwarding device according to the resource change sequence.

Optionally, updating the resource information of the routing and forwarding device according to the resource change sequence includes: comparing the resource change sequence with a last received resource change sequence saved locally; when the comparison result is the When the resource change sequence is consistent with the last received resource change sequence stored locally, the resource information of the routing and forwarding device is not updated; when the comparison result is that the resource change sequence is consistent with the locally stored last received When the received resource change sequence is inconsistent, update the resource information of the routing and forwarding device.

Optionally, updating the resource information of the routing and forwarding device includes: when the resource change sequence is continuous, sending a query request for changing resources to the routing and forwarding device; storing the resource information returned by the routing and forwarding device according to the query request. Updated resource information; when the resource change sequence is discontinuous, check whether the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource change sequence; update the resource information of the routing forwarding device according to the check result.

Optionally, updating the resource information of the routing and forwarding device according to the checking result includes: when the deletion aging sequence stored locally is inconsistent with the deletion aging sequence corresponding to the resource change sequence, sending all resource information to the routing and forwarding device query request; update and store the resource information sent by the route forwarding device according to the query request for all resources; when the locally stored deletion aging sequence is consistent with the deletion aging sequence corresponding to the resource change sequence, forward the resource information to the route The device sends a latest change resource query request; and updates and stores the resource information sent by the routing and forwarding device according to the latest change resource query request.

Optionally, after obtaining at least the identifier of the routing forwarding device and the resource information of the routing forwarding device, the method further includes: deleting the acquired identifier of the routing forwarding device after it is determined that the routing forwarding device restarts and breaks the link and the resource information of the routing and forwarding device; and/or, when it is determined that the routing and forwarding device has not restarted the broken link, re-initiate the control connection to the routing and forwarding device; after re-initiating the control connection, send to the The routing and forwarding device sends a change resource query request; receives the resource change information returned by the routing and forwarding device according to the change resource query request; and updates the resource information of the routing and forwarding device according to the resource change information.

According to another aspect of the present invention, a resource management device is provided, including: a first initiating module, configured to initiate a control connection to a routing and forwarding device; a first obtaining module, configured to, after initiating the control connection, at least Obtaining the identifier of the routing and forwarding device and resource information of the routing and forwarding device, where the resource information includes: identifiers of one or more resources of the routing and forwarding device, each of the one or more resources attribute information of a resource; a management module, configured to manage the resource information of the routing and forwarding device at least according to the identifier of the routing and forwarding device.

Optionally, the first acquiring module includes at least one of the following: a first acquiring unit, configured to acquire an identifier of the routing forwarding device and an ID of the routing forwarding device when performing capability exchange with the routing forwarding device. Resource information; a second acquiring unit, configured to obtain an identifier of the routing forwarding device when exchanging capabilities with the routing forwarding device; an establishing unit, configured to use the user name of the control terminal according to the identifier of the routing forwarding device Establishing a communication connection with the routing and forwarding device; an initiating unit, configured to initiate a query request for querying the resource information of the routing and forwarding device to the routing and forwarding device after the communication connection is established; a receiving unit, configured to receive The resource information returned by the route forwarding device according to the query request.

Optionally, the apparatus further includes: a second acquiring module, configured to acquire a resource change sequence of the routing and forwarding device, where the resource changing sequence is used to indicate information that resources of the routing and forwarding device change; The management module includes: an update unit, configured to update the resource information of the routing and forwarding device according to the resource change sequence.

Optionally, the update unit includes: a comparison subunit, configured to compare the resource change sequence with the last received resource change sequence saved locally; a processing subunit, configured to When the change sequence is consistent with the last received resource change sequence stored locally, the resource information of the routing and forwarding device is not updated; when the comparison result is that the resource change sequence is consistent with the locally stored last received When the resource change sequence of the routing and forwarding device is inconsistent, the resource information of the routing and forwarding device is updated.

Optionally, when updating the resource information of the routing and forwarding device, the processing subunit includes: a sending sub-unit, configured to send a resource change query to the routing and forwarding device when the resource change sequence is continuous Request; store the sub-unit, used to store the updated resource information returned by the routing forwarding device according to the query request; check the sub-unit, used to check the deletion of the local storage when the resource change sequence is discontinuous Whether the aging sequence is consistent with the deletion aging sequence corresponding to the resource change sequence; the update sub-unit is used to update the resource information of the routing and forwarding device according to the checking result.

Optionally, the updating sub-subunit includes: when the deletion aging sequence stored locally is inconsistent with the deletion aging sequence corresponding to the resource change sequence, sending all resource query requests to the routing and forwarding device; The resource information sent by the routing and forwarding device according to the query request for all resources; when the locally stored deletion aging sequence is consistent with the deletion aging sequence corresponding to the resource change sequence, send the latest changed resource query to the routing and forwarding device request; update and store the resource information sent by the routing and forwarding device according to the latest changed resource query request.

Optionally, the apparatus further includes: a deletion module, configured to delete the acquired identifier of the routing forwarding device and resource information of the routing forwarding device after it is determined that the routing forwarding device restarts the broken link; and/or , a second initiating module, configured to re-initiate a control connection to the routing and forwarding device after determining that the routing and forwarding device has not restarted the disconnected link; a sending module, configured to send to the The routing and forwarding device sends a change resource query request; the receiving module is used to receive the resource change information returned by the routing and forwarding device according to the changed resource query request; the updating module is used to update the routing and forwarding device according to the resource change information resource information is updated.

According to another aspect of the present invention, a control terminal is provided, including any one of the devices described above.

According to the present invention, the control connection to the routing and forwarding device is initiated; after the control connection is initiated, at least the identifier of the routing and forwarding device and the resource information of the routing and forwarding device are obtained, wherein the resource information includes: The identification of one or more resources of the routing and forwarding device, and the attribute information of each resource in the one or more resources; managing the resource information of the routing and forwarding device at least according to the identification of the routing and forwarding device solves the problem of The problem existing in the related art is that the control terminal cannot realize the unified management of the resources in the device, and then achieves the effect of realizing the unified management of the resources in the device by the control terminal.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is an architecture diagram of an I2RS system according to an embodiment of the present invention;

2 is a flowchart of a resource management method according to an embodiment of the present invention;

FIG. 3 is a structural block diagram of a resource management device according to an embodiment of the present invention;

FIG. 4 is a structural block diagram of a first acquisition module 34 in a resource management device according to an embodiment of the present invention;

FIG. 5 is a preferred structural block diagram 1 of a resource management device according to an embodiment of the present invention;

FIG. 6 is a structural block diagram of an update unit 54 in a resource management device according to an embodiment of the present invention;

FIG. 7 is a structural block diagram of the processing subunit 64 in the resource management device according to an embodiment of the present invention;

FIG. 8 is a second preferred structural block diagram of a resource management device according to an embodiment of the present invention;

FIG. 9 is a structural block diagram of a control terminal according to an embodiment of the present invention;

FIG. 10 is a flow chart of successful capability exchange according to Embodiment 1 of the present invention;

FIG. 11 is a flowchart of capability exchange failure according to Embodiment 1 of the present invention;

12 is a flow chart of the control terminal acquiring the Agent ID and resource information of the routing/forwarding system equipment according to Embodiment 2 of the present invention;

FIG. 13 is a flow chart of a control terminal acquiring resource information of a routing/forwarding system device according to Embodiment 3 of the present invention.

detailed description

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

In this embodiment, a resource management method is provided. FIG. 2 is a flowchart of a resource management method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202, initiate a control connection to the routing and forwarding device;

Step S204, after the above-mentioned control connection is initiated, at least obtain the identification of the routing and forwarding device and the resource information of the routing and forwarding device, wherein the above-mentioned resource information includes: the identification of one or more resources of the routing and forwarding device, the one or more resource information of the above-mentioned one or more resources Attribute information for each resource in ;

Step S206, managing the resource information of the routing and forwarding device at least according to the identifier of the routing and forwarding device.

Wherein, the executor of the above process may be a control terminal (for example, an I2RS control terminal), and the above attribute information may include detailed information of resources. Through the above steps, the control terminal can at least obtain the identification of the routing and forwarding device and the resource information of the routing and forwarding device, and after obtaining the identification of the routing and forwarding device and the resource information of the routing and forwarding device, it can Unified management of resource information of routing and forwarding devices. Therefore, the problem in the related art that the control terminal cannot realize the unified management of the resources in the device is solved, and the effect of realizing the unified management of the resources in the device by the control terminal is achieved.

In an optional embodiment, when obtaining at least the identifier of the routing and forwarding device and the resource information of the routing and forwarding device, there may be multiple acquisition methods, for example, the routing and forwarding device may be acquired during capability exchange with the routing and forwarding device The identification and resource information of routing and forwarding devices. Wherein, during capability exchange, the identification and resource information of the routing and forwarding device can be obtained directly, or only the identification of the routing and forwarding device can be obtained, and then the resource information of the routing and forwarding device can be obtained according to the obtained identification of the routing and forwarding device. For example, when exchanging capabilities with routing and forwarding equipment, obtain the identification of the routing and forwarding equipment; use the user name of the above-mentioned control terminal and the routing and forwarding equipment to establish a communication connection according to the identification of the routing and forwarding equipment; A query request for querying resource information of the routing and forwarding device; receiving resource information returned by the routing and forwarding device according to the query request. The foregoing manners of obtaining the identification and resource information of the routing and forwarding device are merely two examples, and other methods may also be used to obtain the identification and resource information of the routing and forwarding device. I won't list them all here.

In an optional embodiment, after the above-mentioned control connection is initiated, it further includes: acquiring a resource change sequence of the routing forwarding device, wherein the resource changing sequence is used to indicate information that resources of the routing forwarding device change; at least according to the routing The identification management of the forwarding device's resource information of the routing and forwarding device includes: updating the resource information of the routing and forwarding device according to the resource change sequence.

In an optional embodiment, updating the resource information of the routing and forwarding device according to the above resource change sequence includes: comparing the resource change sequence with the last received resource change sequence saved locally; when the comparison result is resource change When the sequence is consistent with the last received resource change sequence saved locally, the resource information of the routing and forwarding device will not be updated; when the comparison result is that the resource change sequence is inconsistent with the last received resource change sequence saved locally, update Resource information of routing and forwarding devices. Among them, when updating the resource information of the routing and forwarding device, it is updated according to the obtained resource change sequence, and there are also many updating methods. The following describes how to update according to the obtained resource change sequence:

In an optional embodiment, updating the resource information of the routing and forwarding device includes: when the resource change sequence is continuous, sending a query request for changing resources to the routing and forwarding device; storing the updated resource information returned by the routing and forwarding device according to the query request. Resource information; when the resource change sequence is discontinuous, check whether the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource change sequence; update the resource information of the routing and forwarding device according to the checking result.

In an optional embodiment, when updating the resource information of the routing and forwarding device according to the query results, the following scheme can be adopted: when the deletion aging sequence stored locally is inconsistent with the deletion aging sequence corresponding to the resource change sequence, the routing and forwarding device Send all resource query requests; update the resource information sent by the storage, routing and forwarding device according to all resource query requests; when the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource change sequence, send the latest change resource query request to the routing and forwarding device ; Updating the resource information sent by the store, route and forward device according to the latest changed resource query request.

In the above embodiment, the interaction between the control terminal and the routing and forwarding device may be based on the establishment of a communication connection between the control terminal and the routing and forwarding device. It should be noted that the communication connection may be disconnected, and the disconnection is divided into restart disconnection and non-restart disconnection. The following describes the operations performed on the control terminal and routing forwarding device when the disconnection occurs. . In an optional embodiment, after obtaining at least the identification of the routing forwarding device and the resource information of the routing forwarding device, it further includes: after it is determined that the routing forwarding device restarts the disconnected link, deleting the obtained identification of the routing forwarding device and the route forwarding The resource information of the device; and/or, when it is determined that the routing and forwarding device has not restarted the disconnected link, re-initiate the control connection to the routing and forwarding device; after re-initiating the control connection, send a resource change query request to the routing and forwarding device; receive the routing and forwarding The resource change information returned by the device according to the change resource query request; the resource information of the routing forwarding device is updated according to the resource change information.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in various embodiments of the present invention.

In this embodiment, a resource management device is also provided, which is used to implement the above embodiments and preferred implementation modes, and those that have been explained will not be repeated here. As used below, the term "module" may be a combination of software and/or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

Fig. 3 is a structural block diagram of a resource management device according to an embodiment of the present invention. As shown in Fig. 3, the device includes a first initiation module 32, a first acquisition module 34 and a management module 36, and the device will be described below.

The first initiating module 32 is configured to initiate a control connection to the routing and forwarding device; the first obtaining module 34 is connected to the above-mentioned first initiating module 32, and is used to obtain at least the identification and route of the routing and forwarding device after initiating the above-mentioned control connection The resource information of the forwarding device, wherein the resource information includes: the identification of one or more resources of the routing and forwarding device, and the attribute information of each resource in the one or more resources; the management module 36 is connected to the above-mentioned first acquisition module 34, configured to manage resource information of the routing and forwarding device at least according to the identifier of the routing and forwarding device.

FIG. 4 is a structural block diagram of a first acquisition module 34 in a resource management device according to an embodiment of the present invention. As shown in FIG. 4 , the first acquisition module 34 includes a first acquisition unit 42, and/or, the first acquisition module 34 includes a second acquiring unit 44 , an establishing unit 46 , an initiating unit 48 and a receiving unit 410 , and the first acquiring module 34 will be described below.

The first obtaining unit 42 is configured to obtain the identifier of the routing forwarding device and the resource information of the routing forwarding device when exchanging capabilities with the routing forwarding device; the second obtaining unit 44 is configured to perform capability exchange with the routing forwarding device, Acquire the identification of the routing and forwarding equipment; the establishment unit 46 is connected to the above-mentioned second acquisition unit 44, and is used to establish a communication connection with the user name of the control terminal and the routing and forwarding equipment according to the identification of the routing and forwarding equipment; the initiation unit 48 is connected to the above-mentioned establishment The unit 46 is configured to initiate a query request to the routing forwarding device for querying the resource information of the routing forwarding device after the communication connection is established; the receiving unit 410 is connected to the above-mentioned initiating unit 48 and is used to receive the information returned by the routing forwarding device according to the query request. resource information.

Fig. 5 is a preferred structural block diagram 1 of a resource management device according to an embodiment of the present invention. As shown in Fig. 5, the device includes not only all the modules shown in Fig. 3, but also a second acquisition module 52. In Fig. 5, The management module 36 includes an update unit 54, which will be described below.

The second obtaining module 52 is connected to the above-mentioned first initiating module 32 and the management module 36, and is used to obtain the resource change sequence of the routing and forwarding device, wherein the resource changing sequence is used to indicate that the resource of the routing and forwarding device changes; the above-mentioned The management module 36 includes: an updating unit 54, configured to update the resource information of the routing and forwarding device according to the resource changing sequence.

Fig. 6 is a structural block diagram of an update unit 54 in a resource management device according to an embodiment of the present invention. As shown in Fig. 6, the update unit 54 includes a comparison subunit 62 and a processing subunit 64, and the update unit 54 will be described below .

The comparison subunit 62 is used to compare the resource change sequence with the last received resource change sequence stored locally; the processing subunit 64 is connected to the comparison subunit 62 and is used when the comparison result is that the resource change sequence and the local When the saved resource change sequence received last time is consistent, the resource information of the routing and forwarding device is not updated; when the comparison result is that the resource change resource information.

FIG. 7 is a structural block diagram of the processing subunit 64 in the resource management device according to an embodiment of the present invention. As shown in FIG. 7, the processing subunit 64 includes a sending sub-unit 72 and a storage sub-unit 74, and/or The processing sub-unit 64 includes a viewing sub-unit 76 and an updating sub-sub-unit 78 , and the processing sub-unit 64 will be described below.

The sending sub-unit 72 is used to send a query request for changing resources to the routing and forwarding device when the resource information of the routing and forwarding device is updated, and when the resource change sequence is continuous; the storage sub-unit 74 is connected to the above-mentioned sending sub-unit 72 , used to store the updated resource information returned by the routing and forwarding device according to the query request; the viewing sub-unit 76 is used to view the locally stored deletion aging when the resource information of the routing and forwarding device is updated, and when the resource change sequence is discontinuous Whether the sequence is consistent with the delete aging sequence corresponding to the resource change sequence; the update sub-unit 78 is connected to the above-mentioned check sub-unit 76, and is used to update the resource information of the routing and forwarding device according to the check result.

Optionally, the update sub-unit 78 includes: when the deletion aging sequence stored locally is inconsistent with the deletion aging sequence corresponding to the resource change sequence, sending a query request for all resources to the routing forwarding device; updating the storage routing forwarding device according to all resource query Request to send resource information; when the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource change sequence, send the latest change resource query request to the routing and forwarding device; update the resource sent by the storage routing and forwarding device according to the latest change resource query request information.

Fig. 8 is a preferred structural block diagram 2 of a resource management device according to an embodiment of the present invention. As shown in Fig. 8, the device includes not only all the modules shown in Fig. 2. Initiating module 84, sending module 86, receiving module 88 and updating module 810, the device will be described below.

The deletion module 82 is connected to the above-mentioned first acquisition module 34, and is used to delete the obtained identification of the routing forwarding device and the resource information of the routing forwarding device after it is determined that the routing forwarding device restarts and breaks the link; and/or, the second initiating module 84 , connected to the above-mentioned first acquisition module 34, used to re-initiate the control connection to the routing and forwarding device after it is determined that the routing and forwarding device has not restarted the broken link; the sending module 86 is connected to the above-mentioned second initiating module 84, used to re-initiate After the above-mentioned control connection is initiated, a resource change query request is sent to the routing and forwarding device; the receiving module 88 is connected to the above-mentioned sending module 86, and is used to receive the resource change information returned by the routing and forwarding device according to the above-mentioned resource change query request; the update module 810 connects To the above-mentioned receiving module 88, configured to update the resource information of the routing and forwarding device according to the above-mentioned resource change information.

FIG. 9 is a structural block diagram of a control terminal according to an embodiment of the present invention. As shown in FIG. 9 , the control terminal 92 includes any resource management device 94 described above.

The present invention will be described below by taking the aforementioned control terminal as an I2RS control terminal as an example.

The embodiment of the present invention provides a kind of resource management and negotiation mechanism and method of I2RS control terminal, proposes the identifier Agent ID concept (character string type) of I2RS proxy agent, and combines routing/forwarding system equipment (corresponding to above-mentioned routing The concept (string type) of the resource identifier Resource ID of the forwarding device) enables the control terminal to quickly locate and directly manage resources; meanwhile, the embodiment of the present invention also proposes a resource change sequence Revision (64-bit integer) and deletion aging The concept of serial Aged ID (64-bit integer), and a resource consistency negotiation method between the control terminal and the routing/forwarding system equipment is given, so that the I2RS control terminal and the routing/forwarding system equipment can efficiently maintain Consistency of resources. To sum up, it provides a good guarantee for the overall and efficient management and control of routing/forwarding system equipment by the I2RS control terminal.

An embodiment of the present invention provides a resource management and negotiation mechanism and method for an I2RS control terminal, including:

Step 1: The I2RS control terminal initiates a control connection to the routing/forwarding system device (Agent).

Step 2: The routing/forwarding system equipment (Agent) supports resource capabilities, and sends the resource change sequence Revision and each resource identifier ResourceID as resource capabilities (corresponding to the above-mentioned resource information) and the unique identifier Agent ID of the Agent to the I2RS control terminal, Complete the local capability exchange, so as to establish a communication connection with the control terminal;

Wherein, the Agent may only send its unique identifier, the Agent ID, to the control terminal during the establishment of the communication connection, without carrying the resource capability.

Step 3: The I2RS control terminal receives the capability information of the routing/forwarding system equipment (Agent), completes the local capability exchange, and identifies the AgentID and resource information (resource ID) of the routing/forwarding system equipment by the resource management component of the I2RS control terminal and revision) for mapping and storage;

Among them, when the I2RS control terminal receives the lack of resource capability information in the capability information of the routing/forwarding system equipment (Agent), the I2RS control terminal completes the local capability exchange, and the resource management component of the I2RS control terminal performs the routing/forwarding system equipment. Identify the Agent ID for storage, and complete the establishment of the communication connection;

Wherein, when the I2RS control terminal receives the lack of resource capability information in the capability information of the routing/forwarding system equipment (Agent), and completes the establishment of the communication connection, the I2RS control terminal initiates a resource information query request to the Agent;

When the I2RS control terminal receives the lack of resource capability information in the capability information of the routing/forwarding system device (Agent), and completes the establishment of the communication connection, the routing/forwarding system device (Agent) responds to the resource information query request of the I2RS control terminal, collects Resource information that meets the conditions, including the resource identifier Resource ID, the current change sequence Revision of the resource, and the detailed information of the resource (corresponding to the above-mentioned attribute information), and sending the above-mentioned information to the control terminal;

When the I2RS control terminal receives the lack of resource capability information in the capability information of the routing/forwarding system equipment (Agent), and completes the establishment of the communication connection, the control terminal receives the resource information responded by the Agent, and the resource management component performs routing/forwarding The identification Agent ID and resource information of the system equipment are mapped and stored.

Step 4: The routing/forwarding system equipment (Agent) sets the local resource deletion aging hold time (hold time), and reports the changed resource to the I2RS control terminal in real time;

Among them, the routing/forwarding system device (Agent) adds resources locally and reports the resource additions. The reported information includes but is not limited to: resource identifier Resource id, resource current change sequence Revision, resource details, etc., and the I2RS control terminal immediately responds to resource additions , and the resource management component maps and stores the identification AgentID and resource information of the routing/forwarding system equipment;

Among them, the routing/forwarding system equipment (Agent) can locally update resources and report resource updates. The reported information includes but is not limited to: resource identifier Resource id, current resource change sequence Revision, detailed information after resource change, etc. The I2RS control terminal Immediately respond to resource updates, and the resource management component maps and stores the identification Agent ID of the routing/forwarding system equipment and the updated resource information;

Among them, the routing/forwarding system equipment (Agent) can delete resources locally, only update the resource change sequence to be deleted, and set the resource aging sequence aged ID. /Forwarding system equipment (Agent) performs real deletion locally;

Wherein, the routing/forwarding system equipment (Agent) reports the resource deletion at the same time when the resource deletion is identified locally. The reported information includes but is not limited to: resource identification Resource ID, resource current change sequence Revision, the I2RS control terminal immediately responds to the resource deletion, and The resource management component maps and stores the Agent ID of the routing/forwarding system device and the updated resource information.

Step 5: The I2RS control terminal can send a query request to the routing/forwarding system equipment (Agent) periodically or as needed to query the specific resource information of the routing/forwarding system equipment;

After the communication connection is established, the I2RS control terminal can immediately initiate a query request to the Agent to query all resource information of the Agent, and the resource management component maps and stores the identification Agent ID and resource information of the routing/forwarding system equipment;

The I2RS control terminal receives the resource change notification sent by the Agent, and the resource management component of the I2RS control terminal compares the corresponding resource change sequence, and if it is consistent, it does not respond to the change; if the resource change sequence is continuous, the I2RS control terminal can optionally, Send a query request for changing resources to the Agent, and the resource management component maps and stores the Agent ID of the routing/forwarding system device and the updated resource information;

The I2RS control terminal receives the resource change notification sent by the Agent, and finds that the resource change sequence Revision is not continuous, and checks whether the deleted aging sequence aged ID is consistent. If the aged ID is inconsistent, it means that the deletion notification is lost, and the I2RS control terminal sends all resources to the Agent. Query the request, and the resource management component maps and stores the Agent ID of the routing/forwarding system device and the updated resource information; if the aged ID is consistent, it means that the deletion notification is not lost, and the I2RS control terminal sends a resource query to the Agent Request, only query the latest change information, and the resource management component maps and stores the identification Agent ID of the routing/forwarding system equipment and the updated resource information.

Step 6: After the routing/forwarding system equipment (Agent) restarts and breaks the link, the resources of the routing/forwarding system equipment are not reserved, and the resources corresponding to the Agent obtained by the I2RS control terminal are all deleted. After the two re-establish communication connections, the I2RS control The terminal re-establishes the link with the Agent, repeats from step 1, and renegotiates all resources.

Step 7: After the routing/forwarding system equipment (Agent) is not restarted and the link is broken, the resources of the routing/forwarding system equipment are still reserved, and the resources of the corresponding Agent obtained by the I2RS control terminal are also reserved. After the two re-establish the communication connection, the I2RS control Re-establish the link between the terminal and the Agent, and repeat from step 1. The I2RS control terminal only needs to send a resource change query to the Agent for quick resource consistency negotiation.

Three embodiments of the present invention in different usage scenarios are respectively introduced below.

Embodiment one

The external network control terminal (Client) establishes a connection with the routing/forwarding system device (Agent). Taking the NETCONF-based I2RS connection as an example, during capability exchange, the hello message sent by the routing/forwarding system device (Agent) to the control terminal (Client) The information carried in the text includes the routing/forwarding system device (Agent) identifier Agent ID, the current resource change sequence Revision, the connection session number Session ID and the resource identifier Resource ID of the device. As shown in FIG. 10, FIG. 10 is a flow chart of successful capability exchange according to Embodiment 1 of the present invention, and the process includes the following steps:

In step S1002, the network control terminal (Client) carries its own capability information and initiates a NETCONF link establishment request to the routing/forwarding system equipment.

Step S1004, the routing/forwarding system device (Agent) generates a Session ID and a Revision ID.

Step S1006, the routing/forwarding system equipment (Agent) sends a hello message to the network control terminal (Client), in addition to the existing information stipulated in the NETCONF protocol, it also attaches the routing/forwarding system equipment (Agent) identification Agent ID, current resource change Sequence Revision, connection session number Session ID and resource identifier Resource ID of the device;

Step S1008, the session between the routing/forwarding system equipment (Agent) and the control terminal (Client) is established successfully, and the resource management module of the control terminal maps and stores the Agent ID and resource information;

The specific manner in which the resource management module of the control terminal maps and stores the Agent ID and resource information can be designed and implemented by the control terminal according to its own needs.

FIG. 11 is a flow chart of capability exchange failure according to Embodiment 1 of the present invention. As shown in FIG. 11 , the process includes the following steps:

In step S1102, the network control terminal (Client) carries its own capability information and initiates a NETCONF link establishment request to the routing/forwarding system equipment.

In step S1104, the routing/forwarding system device (Agent) generates a Session ID and a Revision ID.

In step S1106, the routing/forwarding system device (Agent) fails to negotiate with the control terminal capability (Client), and sends a response message to the control terminal that connection establishment fails.

Embodiment two

The external network control terminal (Client) establishes a connection with the routing/forwarding system device (Agent). Taking the NETCONF-based I2RS connection as an example, during capability exchange, the hello message sent by the routing/forwarding system device (Agent) to the control terminal (Client) The information carried in the text only includes the routing/forwarding system device (Agent) identifier Agent ID and the connection session number Session ID. After the I2RS control terminal establishes a connection with the Agent, it initiates a request to query the resource information of the Agent device, including the resource change sequence and resource information. details. As shown in FIG. 12 , FIG. 12 is a flow chart for the control terminal to acquire the Agent ID and resource information of the routing/forwarding system equipment according to Embodiment 2 of the present invention. The process includes the following steps:

Step S1202, the network control terminal (Client) (same as the above-mentioned control terminal) carries its own capability information, and initiates a NETCONF link establishment request to the routing/forwarding system equipment.

In step S1204, the routing/forwarding system device (Agent) generates a session ID.

Step S1206, the routing/forwarding system equipment (Agent) sends a hello message to the network control terminal (Client), and in addition to the existing information stipulated by the NETCONF protocol, the routing/forwarding system equipment (Agent) identification Agent ID is also attached;

Step S1208, the session between the routing/forwarding system equipment (Agent) and the control terminal (Client) is established successfully, and the resource management module of the control terminal maps and stores the Agent ID;

Wherein, the specific manner in which the resource management module of the control terminal maps and stores the Agent ID can be designed and implemented by the control terminal according to its own needs.

Step S1210, the control terminal (Client) sends a resource query request to the routing/forwarding system device (Agent);

Among them, the resource information query request message sent by the Client can be as follows:

Step S1212, the routing/forwarding system device (Agent) sends a resource response message to the control terminal (Client), the message contains information including the current resource change sequence Revision, the resource identifier Resource ID of the device and detailed information of the device resource;

The Agent's response message can be as follows:

Step S1214, the resource management module of the control terminal maps and stores the Agent ID and resource information;

Wherein, the specific manner in which the resource management module of the control terminal maps and stores the Agent ID and resource information can be designed and implemented by the control terminal according to its own needs.

Embodiment three

After the connection between the external network control terminal (Client) and the routing/forwarding system equipment (Agent) is successfully established, the resource of the routing/forwarding system equipment (Agent) will be actively notified to the control terminal (Client), and the control terminal will update and store the changed resources. As shown in FIG. 13 , FIG. 13 is a flow chart of a control terminal acquiring resource information of a routing/forwarding system device according to Embodiment 3 of the present invention. The process includes the following steps:

Step S1302, the resources of the routing/forwarding system equipment (Agent) are updated, and a resource change notification is sent to the control terminal (Client);

The routing/forwarding system device (Agent) updates the resource change sequence revision, and the resource change notification message sent to the control terminal carries the latest revision and detailed resource information.

In step S1304, the resource management module of the control terminal (Client) completes resource mapping and management, and keeps local resources consistent with routing/forwarding system device (Agent) resources.

Step S1306, optionally, the control terminal (Client) initiates a detailed information query for changing resources to the routing/forwarding system device (Agent);

Wherein, the control terminal checks the resource update sequence revision, and if the revision is discontinuous, initiates a resource information query to the routing/forwarding system device (Agent);

The resource information query initiated by the control terminal may be a one-time query of all resource information on the routing/forwarding system device (Agent), or may be divided into multiple queries.

In step S1308, the routing/forwarding system device (Agent) sends a resource information message to the control terminal.

Step S1310, the control terminal receives the resource information responded by the routing/forwarding system equipment (Agent), and the resource management module of the control terminal completes the mapping and storage of related resources.

The connection between the SDN network control terminal and the routing/forwarding system equipment is not limited to NETCONF, and may be RESTCONF or other connection modes. The embodiment of the present invention is not affected by the connection mode between the SDN network control terminal and the routing/forwarding system equipment.

It should be noted that each of the above-mentioned modules can be implemented by software or hardware. For the latter, it can be implemented in the following manner, but not limited to this: the above-mentioned modules are all located in the same processor; or, the above-mentioned modules are respectively located in multiple in the processor.

The embodiment of the invention also provides a storage medium. Optionally, in this embodiment, the above-mentioned storage medium may be configured to store program codes for performing the following steps:

S1, routing/forwarding system equipment;

S2. After initiating the aforementioned control connection, acquire at least the identifier of the routing and forwarding device and the resource information of the routing and forwarding device, wherein the resource information includes: the identifier of one or more resources of the routing and forwarding device, and one or more resources of the aforementioned one or more resources The attribute information of each resource of ;

S3. Manage resource information of the routing and forwarding device at least according to the identifier of the routing and forwarding device.

Optionally, in this embodiment, the above-mentioned storage medium may include but not limited to: U disk, read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), Various media that can store program codes such as removable hard disks, magnetic disks, or optical disks.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not repeated in this embodiment.

The resource management mechanism and method of the I2RS control terminal provided in the embodiment of the present invention can realize the control terminal to manage the obtained network device resource information, and provide a resource consistency negotiation method between the control terminal and the network device, In turn, the overall and efficient management and control of device resources by the network control terminal is realized.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Alternatively, they may be implemented in program code executable by a computing device so that they may be stored in a storage device to be executed by a computing device, and in some cases, in an order different from that shown here The steps shown or described are carried out, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (15)

1. A resource management method, characterized in that, comprising: Initiate a control connection to the routing forwarding device; After initiating the control connection, at least acquire the identifier of the routing forwarding device and resource information of the routing forwarding device, where the resource information includes: identifiers of one or more resources of the routing forwarding device, the property information for each of the one or more resources; The resource information of the routing and forwarding device is managed at least according to the identifier of the routing and forwarding device. 2. The method according to claim 1, wherein at least obtaining the identifier of the routing forwarding device and the resource information of the routing forwarding device comprises at least one of the following: When exchanging capabilities with the routing and forwarding device, acquiring the identifier of the routing and forwarding device and resource information of the routing and forwarding device; When exchanging capabilities with the routing and forwarding equipment, obtain the identification of the routing and forwarding equipment; use the user name of the control terminal to establish a communication connection with the routing and forwarding equipment according to the identification of the routing and forwarding equipment; The routing and forwarding device initiates a query request for querying the resource information of the routing and forwarding device; and receives the resource information returned by the routing and forwarding device according to the query request. 3. The method of claim 1, wherein, After initiating the control connection, it further includes: acquiring a resource change sequence of the routing and forwarding device, where the resource changing sequence is used to indicate information that resources of the routing and forwarding device change; Managing the resource information of the routing and forwarding device at least according to the identifier of the routing and forwarding device includes: updating the resource information of the routing and forwarding device according to the resource change sequence. 4. The method according to claim 3, wherein updating the resource information of the routing and forwarding device according to the resource change sequence comprises: comparing the resource change sequence with the last received resource change sequence saved locally; When the comparison result shows that the resource change sequence is consistent with the last received resource change sequence stored locally, the resource information of the routing and forwarding device is not updated; When the comparison result shows that the resource change sequence is inconsistent with the last received resource change sequence stored locally, update the resource information of the routing and forwarding device. 5. The method according to claim 4, wherein updating the resource information of the routing forwarding device comprises: When the resource change sequence is continuous, send a query request for changing resources to the routing and forwarding device; store the updated resource information returned by the routing and forwarding device according to the query request; When the resource change sequence is discontinuous, check whether the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource change sequence; update the resource information of the routing forwarding device according to the check result. 6. The method according to claim 5, wherein updating the resource information of the routing and forwarding device according to the checking result comprises: When the deletion aging sequence stored locally is inconsistent with the deletion aging sequence corresponding to the resource change sequence, send all resource query requests to the routing and forwarding device; update and store the routing and forwarding device according to the all resource query requests and send resource information; When the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource change sequence, send the latest change resource query request to the routing forwarding device; update and store the routing forwarding device according to the latest change resource query The resource information sent by the request. 7. The method according to claim 1, further comprising: after obtaining at least the identifier of the routing forwarding device and the resource information of the routing forwarding device: When it is determined that the routing and forwarding device restarts the broken link, delete the obtained identifier of the routing and forwarding device and the resource information of the routing and forwarding device; and/or, When it is determined that the route forwarding device has not restarted the broken link, re-initiate the control connection to the route forwarding device; after re-initiating the control connection, send a change resource query request to the route forwarding device; receive the route The forwarding device updates the resource information of the routing and forwarding device according to the resource change information returned by the change resource query request; and according to the resource change information. 8. A resource management device, comprising: The first initiating module is configured to initiate a control connection to the routing and forwarding device; The first obtaining module is configured to obtain at least the identifier of the route forwarding device and resource information of the route forwarding device after initiating the control connection, wherein the resource information includes: one or more of the route forwarding device Identification of multiple resources, attribute information of each resource in the one or more resources; A management module, configured to manage resource information of the routing and forwarding device at least according to the identifier of the routing and forwarding device. 9. The device according to claim 8, wherein the first acquiring module comprises at least one of the following: A first acquiring unit, configured to acquire an identifier of the routing forwarding device and resource information of the routing forwarding device when exchanging capabilities with the routing forwarding device; The second obtaining unit is configured to acquire the identification of the routing forwarding device when exchanging capabilities with the routing forwarding device; the establishing unit is configured to use the user name of the control terminal and the user name of the routing forwarding device according to the identification of the routing forwarding device. The routing forwarding device establishes a communication connection; the initiating unit is configured to initiate a query request for querying the resource information of the routing forwarding device to the routing forwarding device after the communication connection is established; the receiving unit is configured to receive the routing Forwarding the resource information returned by the device according to the query request. 10. The apparatus of claim 8, wherein: It also includes: a second acquiring module, configured to acquire a resource change sequence of the routing and forwarding device, wherein the resource changing sequence is used to indicate information that resources of the routing and forwarding device change; The management module includes: an update unit, configured to update the resource information of the routing and forwarding device according to the resource change sequence. 11. The device according to claim 10, wherein the updating unit comprises: A comparing subunit, configured to compare the resource change sequence with the last received resource change sequence stored locally; The processing subunit is configured to not update the resource information of the routing and forwarding device when the comparison result is that the resource change sequence is consistent with the last received resource change sequence stored locally; when the comparison result is the When the resource change sequence is inconsistent with the last received resource change sequence stored locally, update the resource information of the routing and forwarding device. 12. The apparatus according to claim 11, wherein when updating the resource information of the routing and forwarding device, the processing subunit comprises: The sending sub-unit is used to send a resource change query request to the routing and forwarding device when the resource change sequence is continuous; the storing sub-unit is used to store the update returned by the routing and forwarding device according to the query request After the resource information; Viewing the sub-unit is used to check whether the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource modification sequence when the resource change sequence is discontinuous; the update sub-unit is used to update the corresponding resource change sequence according to the viewing result. Describe the resource information of the routing and forwarding device. 13. The device according to claim 12, wherein the updating the sub-subunit comprises: When the deletion aging sequence stored locally is inconsistent with the deletion aging sequence corresponding to the resource change sequence, send all resource query requests to the routing and forwarding device; update and store the routing and forwarding device according to the all resource query requests and send resource information; When the deletion aging sequence stored locally is consistent with the deletion aging sequence corresponding to the resource change sequence, send the latest change resource query request to the routing forwarding device; update and store the routing forwarding device according to the latest change resource query The resource information sent by the request. 14. The device of claim 8, further comprising: A deletion module, configured to delete the acquired identifier of the routing forwarding device and the resource information of the routing forwarding device after it is determined that the routing forwarding device restarts and breaks the link; and/or, The second initiating module is configured to re-initiate the control connection to the routing forwarding device after it is determined that the routing forwarding device has not restarted the broken link; the sending module is configured to send to the routing device after re-initiating the control connection. The forwarding device sends a change resource query request; the receiving module is used to receive the resource change information returned by the routing forwarding device according to the change resource query request; the updating module is used to update the routing forwarding device according to the resource change information Resource information is updated. 15. A control terminal, comprising the device according to any one of claims 8-14.