CN105656643A - Method and equipment for performing compatible management based on network configuration protocol - Google Patents

Abstract

The invention discloses a method for compatible management based on a network configuration protocol (netconf). The method includes: when establishing a connection with a network device, obtaining device characteristic information of the network device; when sending a netconf interface message to the network device, Process the netconf interface message according to the acquired device feature information and the device feature information carried in each field in the netconf merged interface. The invention also discloses a network management device at the same time.

Description

A method and device for compatible management based on network configuration protocol

technical field

The invention relates to network management technology in the field of communication technology, in particular to a method and equipment for compatible management based on network configuration protocols.

Background technique

With the rapid development of Software Defined Network (Software Defined Network, SDN), more and more network devices are evolving to the SDN network architecture. Under the SDN network architecture, the control plane of the network equipment is migrated from the equipment level to the network management server level, and the interface between the network management server and the network equipment is defined through the network configuration protocol (netconf); here, the network management server can also be called SDN server.

The Netconf protocol has a series of advantages, such as strong scalability, simple communication mechanism, and layered structure, etc. However, the Netconf protocol has defects in the compatibility management of multiple devices and multiple versions. According to the standard requirements of the Netconf protocol, the receiver (device host) of the Netconf protocol will strictly verify the received message. If the message received by the receiver (device host) contains field, then the receiver (device host) will report an error. Therefore, the packet originator (SDN server) needs to identify the netconf interface definition supported by the receiver (device host) and follow the The supported interface definition sends messages, which requires the SDN server to set corresponding interface messages for network devices of different device types and different versions; however, if the SDN server needs to manage a large number of networks of different device types and different versions Devices will inevitably increase the management complexity, development workload, and maintenance workload of the SDN server.

Contents of the invention

In view of this, the embodiments of the present invention expect to provide a method and device for compatible management based on a network configuration protocol, which can realize compatible management of network devices and reduce the complexity of maintenance and management.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

The embodiment of the present invention provides a method for compatible management based on netconf, the method includes:

When establishing a connection with a network device, acquiring device feature information of the network device;

When sending the netconf interface message to the network device, process the netconf interface message according to the acquired device feature information and the device feature information carried in each field in the netconf merged interface.

In the above scheme, the method also includes:

Receive the netconf interfaces of each network device, merge the netconf interfaces of each network device according to the compatibility merging rules, and obtain and store the netconf merging interfaces in advance; each field in the netconf merging interface carries all network devices that support this field The device characteristic information of each network device is different.

In the above scheme, the method also includes:

When the updated netconf interface of the network device is received, the netconf merged interface is updated according to the updated netconf interface.

In the above solution, the device feature information includes device type, version model and version update time.

In the above solution, the netconf interface message is processed according to the acquired device feature information and the device feature information carried in each field in the netconf merge interface, including:

According to the obtained device type, version model and version update time, query the device feature information carried in each field in the netconf merge interface;

If the obtained device type and version type are queried in the device characteristic information carried in each field, and the obtained version update time is later than or equal to the corresponding version update time, then the corresponding field in the netconf interface message will not be updated. any operation;

If the obtained device type and version type are not found in the device characteristic information carried in each field, or the obtained version update time is earlier than the corresponding version update time, delete the corresponding field in the netconf interface message .

According to the above method, an embodiment of the present invention provides a network management device, the network management device includes: an acquisition module and a processing module; wherein,

The obtaining module is configured to obtain device characteristic information of the network device when establishing a connection with the network device;

The processing module is configured to process the netconf interface message according to the acquired device feature information and the device feature information carried in each field in the netconf merge interface when sending the netconf interface message to the network device.

In the above solution, the network management device also includes a merge storage module, which is used to receive the netconf interfaces of each network device, merge the netconf interfaces of each network device according to the compatibility merge rules, and obtain and store the netconf merge interfaces in advance; Each field in the netconf merge interface carries the device characteristic information of all network devices that support this field, and the device characteristic information of each network device is different.

In the above solution, the network management device further includes an update module, configured to update the netconf merge interface according to the updated netconf interface when receiving the updated netconf interface of the network device.

According to the above method, an embodiment of the present invention further provides a network management device, where the network management device includes: a first processor and a second processor; wherein,

The first processor is configured to acquire device feature information of the network device when establishing a connection with the network device;

The second processor is configured to process the netconf interface message according to the acquired device feature information and the device feature information carried in each field in the netconf merge interface when sending the netconf interface message to the network device.

In the above solution, the network management device further includes:

The third processor is used to receive the netconf interfaces of each network device, merge the netconf interfaces of each network device according to the compatibility merging rules, and obtain the netconf merging interface in advance; each field in the netconf merging interface carries information supporting the The device characteristic information of all network devices in the field, and the device characteristic information of each network device is different;

Storage for storing netconf merged interfaces.

In the above solution, the network management device further includes:

The fourth processor is configured to update the netconf merge interface according to the updated netconf interface when receiving the updated netconf interface of the network device.

The method and device for compatible management based on the network configuration protocol provided by the embodiments of the present invention obtain the device feature information of the network device when establishing a connection with the network device; when sending a netconf interface message to the network device, according to the obtained device The feature information and the device feature information carried by each field in the netconf merge interface are used to process the netconf interface message; in this way, the embodiment of the present invention is based on the obtained device feature information and the device feature carried by each field in the netconf merge interface information to determine the fields supported by the current network device in the netconf interface message, which can not only meet the needs of various network devices to achieve compatible management of network devices, but also report the netconf interface according to the fields supported by the current network device The text is processed accordingly, and the fields in the netconf interface message that are not supported by the current network device can be further deleted and sent, so that the network management device can realize unified management and reduce the complexity of maintenance and management.

Description of drawings

FIG. 1 is a schematic diagram of an implementation process of a method for compatible management based on a network configuration protocol according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the composition and structure of a network management device according to an embodiment of the present invention;

FIG. 3 is a structural diagram of hardware components of a network management device according to an embodiment of the present invention.

detailed description

In the embodiment of the present invention, when establishing a connection with a network device, obtain the device feature information of the network device; feature information, processing the netconf interface message; and then sending the processed netconf interface message to the network device.

Further, the implementation scheme of the embodiment of the present invention also includes: receiving the netconf interfaces of each network device, merging the netconf interfaces of each network device according to the compatibility merging rules, and obtaining and storing the netconf merging interface in advance; the netconf merging interface Each field carries device characteristic information of all network devices supporting this field, and the device characteristic information of each network device is different.

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

The embodiment of the present invention proposes a method for compatible management based on a network configuration protocol, as shown in FIG. 1 , the method includes:

Step S101: When establishing a connection with a network device, the network management device acquires device characteristic information of the network device.

Before performing this step, the method also includes:

Step S100: The network management device receives the netconf interface sent by each network device, merges the netconf interfaces of each network device according to the compatibility merging rules, and obtains and stores the netconf merging interface in advance; each field in the netconf merging interface carries There are device characteristic information of all network devices that support this field, and the device characteristic information of each network device is different.

Here, each netconf interface manufacturer defines the netconf interface of each network device according to the netconf protocol standard, and sends the defined netconf interface to the network management device; specifically, add the device to each field in the defined netconf interface Feature information; wherein, the device feature information includes information such as device type, version model, and version update time, and the version update time can be represented by a timestamp, which is a unique identification feature used to represent the sequence Code, which can be the feature code of year, month, day, for example, 2014-01-15, or it can also be an increasing number or other feature codes that can indicate the sequence; usually, the defined netconf interface is stored and sent in the form of a yang file .

Specifically, after the network management device receives the netconf interfaces sent by all network devices, it uses the netconf interface merging tool MergeYangTool to merge the netconf interfaces of all network devices according to the compatibility merging rules to obtain and store the netconf merging interfaces. The specific implementation method as follows:

Specifically, the netconf interface of the first network device (device type 1, version model 1, version update time 1) and the netconf interface of the second network device (device type 2, version model 2, version update time 2) are predefined, as The netconf interface to be merged; wherein, the interface-name field in the netconf interface of the first network device is defined as follows:

Then, use the netconf interface merging tool MergeYangTool to merge the input netconf interfaces to be merged according to the compatibility merging rules to obtain the netconf merging interface; the interface-name field in the netconf merging interface is defined as follows:

In the definition of the interface-name field in the above-mentioned netconf merged interface, the device feature information of all network devices that support this field is added by adding field attributes. The attribute name can be customized according to requirements, for example, the attributes in the above fields The name is defined as device-availabledate.

Here, the netconf interface merging tool MergeYangTool first reads the netconf interfaces of multiple network devices, and performs grammatical analysis on the netconf interfaces. If a netconf interface definition that does not conform to the grammatical requirements is found, the corresponding netconf interface is returned to the netconf interface manufacturer. Require the netconf interface manufacturer to modify the netconf interface definition, and give a corresponding error message; if no netconf interface definition that does not conform to the grammatical requirements is found, it will be merged according to the compatibility merge rules.

It should be noted that the input of the netconf interface merging tool MergeYangTool is multiple parallel directories. The directory name is the name of the corresponding network device. Each directory corresponds to a yang file of the netconf interface defined by the network device. After merging, the netconf merged interface storage is obtained. in a yang file.

Usually, the compatibility merging rule is set as: merging the same fields defined in the netconf interfaces of multiple network devices, and adding device characteristic information of all network devices supporting the field to the merged field.

Furthermore, if the netconf interface manufacturer updates the definition of the netconf interface, for example, adding a new field or updating the original field in the netconf interface, and adding the corresponding device characteristic information to this field; then, all The network management device sends the updated netconf interface; when the network management device receives the updated netconf interface, it updates the netconf merge interface according to the updated netconf interface.

Step S102: When sending a netconf interface message to a network device, process the netconf interface message according to the obtained device feature information and the device feature information carried in each field in the netconf combined interface.

Here, the netconf interface message is the netconf interface setting defined by the netconf interface formulation manufacturer.

Here, when the network management device establishes a connection with the network device, it obtains the device feature information of the network device during the netconf-based capability exchange process, and the device feature information includes information such as device type, version model, and version update time. ;

When sending the netconf interface message to the network device, the netconf interface message is processed according to the obtained device feature information and the device feature information carried in each field in the netconf merged interface. The specific implementation is as follows:

According to the obtained device type, version model and version update time, query the device feature information carried in each field in the netconf merge interface;

If the obtained device type and version type are queried in the device characteristic information carried in each field, and the obtained version update time is later than or equal to the corresponding version update time, then the corresponding field in the netconf interface message Do nothing;

If the obtained device type and version type are not found in the device characteristic information carried in each field, or the obtained version update time is earlier than the corresponding version update time, then delete the corresponding field in the netconf interface message .

Specifically, assume that the obtained device feature information is: device type 1, version model 1, version update time 3; correspondingly, the list of device feature information corresponding to a field in the netconf merge interface is "device type 1, version model 1 , version update time 1; device type 2, version model 2, version update time 2";

First, according to the obtained device type 1 and version model 1, query the device feature information list corresponding to this field "device type 1, version model 1, version update time 1; device type 2, version model 2, version update time 2"; At this point, a set of matching information (device type 1, version model 1, version update time 1) is queried; then, the version update time 3 is compared with the corresponding version update time 1 in the matching information, if the version update time 3 is late is equal to or equal to the corresponding version update time 1, then no operation is performed on this field in the netconf interface message; if the version update time 3 is earlier than the corresponding version update time 1, then the netconf interface message is This field is deleted.

It should be noted that if the obtained version update time is later than or equal to the corresponding version update time, it means that the corresponding field in the netconf interface message is defined before the version model of the network device is released. Therefore, the network The device supports this field, and there is no need to perform any operations on the corresponding field in the netconf interface message; if the obtained version update time is earlier than the corresponding version update time, it means that the corresponding field in the netconf interface message is in the The version model of the network device is defined after release, therefore, the network device does not support this field, and the corresponding field in the netconf interface message needs to be deleted.

Further, the method also includes:

Step S103: Send the processed netconf interface packet to the network device.

In order to describe the embodiment of the present invention more clearly, the data exchange process in the embodiment of the present invention will be described in detail below using specific embodiments.

Embodiment one

Assume that when connecting to a network device, the device feature information of the network device obtained includes: the device type is 15K, the version model is 1.00, and the version update time is 2014-01-15; correspondingly, the interface-name field in the netconf merged interface corresponds to The device feature information list is "15K, 1.00, 2014-01-12; 15K, 2.00, 2014-03-21";

According to the obtained device feature information and the list of device feature information corresponding to the interface-name field in the netconf merged interface, the process of processing the netconf interface message is as follows:

According to the device type 15K and version model 1.00, query the device feature information list corresponding to the interface-name field "15K, 1.00, 2014-01-12; 15K, 2.00, 2014-03-21";

Query a set of matching information (15K, 1.00, 2014-01-12); then, compare the version update time 2014-01-15 with the corresponding version update time 2014-01-12 in the matching information, obviously, the version update The time 2014-01-15 is later than the corresponding version update time 2014-01-12 in the matching information. Therefore, the network device supports the interface-name field. any operation.

In order to implement the above method, the embodiment of the present invention also provides a network management device. Since the principle and method of solving the problem of the network management device are similar, the implementation process and implementation principle of the network management device can refer to the implementation process of the aforementioned method And the description of the implementation principle, the repetition will not be repeated.

As shown in FIG. 2, the network management device provided by the embodiment of the present invention includes: an acquisition module 200 and a processing module 201; wherein,

The obtaining module 200 is configured to obtain device feature information of the network device when establishing a connection with the network device;

The processing module 201 is configured to process the netconf interface message according to the acquired device feature information and the device feature information carried in each field in the netconf merge interface when sending the netconf interface message to the network device;

Wherein, the device feature information includes device type, version model and version update time.

For the convenience of description, each part of the above-mentioned network management device is divided into various modules or units by function and described separately. The above division manner of functional units or modules is only a preferred implementation manner given by the embodiment of the present invention, and the division manner of functional units or modules does not constitute a limitation of the present invention.

In a specific implementation, the network management device also includes a merge storage module 202, which is used to receive the netconf interfaces of each network device, merge the netconf interfaces of each network device according to the compatibility merge rules, and obtain and store the netconf merge interfaces in advance; Each field in the above-mentioned netconf merge interface carries device characteristic information of all network devices supporting this field, and the device characteristic information of each network device is different.

In a specific implementation, the network management device further includes an update module 203, configured to update the netconf merge interface according to the updated netconf interface when receiving the updated netconf interface of the network device.

In practical applications, the acquisition module 200, the processing module 201, the combined storage module 202, and the update module 203 can be composed of a central processing unit (CPU), a microprocessor (MPU), a digital Signal Processor (DSP), or Field Programmable Gate Array (FPGA) Implementation.

Based on the same technical concept, a specific example is given below to illustrate the composition and function of the network management device in the embodiment of the present invention. The principle and method of solving the problem of the network management device are similar to those described above, and repeated descriptions will not be repeated.

As shown in FIG. 3, the mobile terminal includes: a first processor 300 and a second processor 301; wherein,

The first processor 300 is configured to acquire device feature information of the network device when establishing a connection with the network device;

The second processor 301 is configured to process the netconf interface message according to the acquired device feature information and the device feature information carried in each field in the netconf merge interface when sending the netconf interface message to the network device .

In a specific implementation, the network management device further includes a third processor 302, configured to receive the netconf interfaces of each network device, and merge the netconf interfaces of each network device according to compatibility merging rules to obtain the netconf merging interface in advance; Each field in the netconf merge interface carries the device feature information of all network devices that support this field, and the device feature information of each network device is different;

The memory 303 is used for storing netconf merged interfaces.

In a specific implementation, the network management device further includes a fourth processor 304 configured to update the netconf merge interface according to the updated netconf interface when receiving the updated netconf interface of the network device.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (11)

1. A method for compatibility management based on a network configuration protocol, the method comprising:

when establishing connection with network equipment, acquiring equipment characteristic information of the network equipment;

and when sending the netconf interface message to the network equipment, processing the netconf interface message according to the acquired equipment characteristic information and the equipment characteristic information carried by each field in the netconf merging interface.

2. The method of claim 1, further comprising:

receiving netconf interfaces of each network device, merging the netconf interfaces of each network device according to a compatibility merging rule, and obtaining and storing a netconf merging interface in advance; each field in the netconf merging interface carries the device characteristic information of all the network devices supporting the field, and the device characteristic information of each network device is different.

3. The method of claim 2, further comprising:

and when receiving the updated netconf interface of the network equipment, updating the netconf merging interface according to the updated netconf interface.

4. The method according to any one of claims 1 to 3, wherein the device characteristic information includes a device type, a version model number, and a version update time.

5. The method according to claim 4, wherein the processing the netconf interface packet according to the acquired device characteristic information and the device characteristic information carried by each field in the netconf merged interface includes:

inquiring the device characteristic information carried by each field in the netconf merging interface according to the obtained device type, version model and version updating time;

if the acquired device type and version type are inquired from the device feature information carried by each field, and the acquired version update time is later than or equal to the corresponding version update time, not performing any operation on the corresponding field in the netconf interface message;

and if the acquired device type and version type are not inquired in the device characteristic information carried by each field, or the acquired version updating time is earlier than the corresponding version updating time, deleting the corresponding field in the netconf interface message.

6. A network management device, characterized in that the network management device comprises: the device comprises an acquisition module and a processing module; wherein,

the acquisition module is used for acquiring the equipment characteristic information of the network equipment when the connection with the network equipment is established;

and the processing module is used for processing the netconf interface message according to the acquired device characteristic information and the device characteristic information carried by each field in the netconf combined interface when the netconf interface message is sent to the network device.

7. The network management device according to claim 6, wherein the network management device further comprises:

the merging storage module is used for receiving the netconf interfaces of the network devices, merging the netconf interfaces of the network devices according to a compatibility merging rule, and obtaining and storing the netconf merging interfaces in advance; each field in the netconf merging interface carries the device characteristic information of all the network devices supporting the field, and the device characteristic information of each network device is different.

8. The network management device according to claim 6 or 7, characterized in that the network management device further comprises:

and the updating module is used for updating the netconf merging interface according to the updated netconf interface when the updated netconf interface of the network equipment is received.

9. A network management device, characterized in that the network management device comprises: a first processor, a second processor; wherein,

the first processor is used for acquiring the device characteristic information of the network device when the first processor establishes connection with the network device;

and the second processor is configured to, when sending a netconf interface message to the network device, process the netconf interface message according to the acquired device characteristic information and the device characteristic information carried in each field of the netconf merging interface.

10. The network management device according to claim 9, wherein the network management device further comprises:

the third processor is used for receiving the netconf interfaces of the network devices, merging the netconf interfaces of the network devices according to a compatibility merging rule, and obtaining a netconf merging interface in advance; each field in the netconf merging interface carries the device characteristic information of all network devices supporting the field, and the device characteristic information of each network device is different;

a memory for storing a netconf merge interface.

11. The network management device according to claim 9 or 10, characterized in that the network management device further comprises:

and the fourth processor is used for updating the netconf merging interface according to the updated netconf interface when the updated netconf interface of the network equipment is received.