WO2014161315A1

WO2014161315A1 - Common information model-based network management method and system

Info

Publication number: WO2014161315A1
Application number: PCT/CN2013/087182
Authority: WO
Inventors: 顾忠禹
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-04-03
Filing date: 2013-11-15
Publication date: 2014-10-09
Also published as: CN104104529A

Abstract

A common information model (CIM)-based network management method and system, relating to the field of communications. The method disclosed in the present invention comprises: defining a CIM syntax-based network type, wherein the network type comprises a network device type, a network connection type and a server type, the network device type at least consisting of a network interface type, a routing engine type, a forwarding engine type, a processing engine type and a management engine type, wherein each composition type of the network type and each composition type of the network device type respectively consist of corresponding CIM information elements and implementation methods corresponding thereto; and a network device forming a network performing network management by means of the CIM information elements supporting the network device type and corresponding to various types forming the network device and implementation methods corresponding thereto. Also disclosed is a CIM-based network management system. The technical solution of the present application can be applicable to the abstraction of all network types at present, thereby solving the deficiency of the NSMWG solution, and realizing the CIM-based network management.

Description

Network management method and system based on public information model

Technical field

The present invention relates to the field of communications, and more particularly to a network management method and system based on a Common Information Model (CIM).

Background technique

Traditional network management uses SNMP (Simple Network Management Protocol) or TELNET to log in to specific network devices for configuration management. Due to the large number of manufacturers and the large number of network devices, it is necessary for network administrators to familiarize themselves with the configuration methods of various manufacturers and various related devices. It is a heavy burden for a large network administrator. Therefore, the automation and standardization of network management is especially important. How to provide standardized equipment management and network management has always been the goal of standardization organizations.

For example, the DMTF is based on the CIM model, a large number of standardization work for computer systems, or specific servers, and introduces a series of standards covering various components of the server, software functions, and network functions. For network functions, including: LAN interface, definition of IP interface, and configuration of IP configuration, DHCP (Dynamic Host Configuration Protocol) and DNS (Domain Name System) client. Because it involves the function of virtualization, so that the resources can be optimized for use, and support the development of cloud computing, the function of the virtual network is also analyzed, and the NSMWG working group is set up to manage the network services. Standardization work.

The current state of research on related standards is that although there are two technical white papers for virtual networks, one is mainly for L2 networks, especially between servers and external switches, and for L3 networks, The more general network model is embodied in the published technical white papers DSP20025 (Virtual Networking Management White Paper) and DSP20034 (Network Services Management Use Cases), DSP0152 (CIM Network Model White Paper), etc., but these contents are not Detailed and accurate presentation of network management models and specific, related management operations can not be used to achieve specific network management. Further, although the CIM model already includes some content of the network model, the coverage is relatively wide. For example, the model describes more than 40 graphics, and relates to many aspects of the network such as IP, MPLS, QoS, routing, etc., but In general, it is still a conceptual description, which cannot be used for model design of direct virtual network management, nor can it be used to implement specific network management.

At the same time, we also noticed that the NSMWG is currently discussing the network management model. The specific output is reflected in the DSP10046 (Network Services Management Profile) network management service specification. The network is shown in Figure 1, which is the network management structure diagram of the NSMWG. It is also too conceptual, and the lack of a large amount of content, such as the configuration of specific network functions, can not be implemented to specific functional entities or specific classes, so the existing network model can not be specifically implemented into the network that can be managed. Functional entities, and implement effective management operations.

In addition, in NSMMW, although there are some specific network information models and specific functional entities, they are not universal because of the internal implementation technologies of specific companies and the applicable application scenarios of these implementations. .

Therefore, within the scope of DMTF NSMWG research, or further to implement CIM-based network management, a specific, versatile, and operationally managed network model/network class is required. The specific network device realizes network management by implementing the network class.

Summary of the invention

The technical problem to be solved by the present invention is to provide a CIM-based network management method and system to implement a CIM model in a VN.

In order to solve the above technical problem, the present invention discloses a public information model (CIM) based network management method, the method comprising:

Defining a network class based on a CIM grammar, the network class comprising a network device class, a network connection class, and a server class, the network device class being at least a network interface class, a routing engine class, a forwarding engine class, a processing engine class, and a management engine class a composition, wherein each component class of the network class and each component class of the network device class are respectively composed of corresponding CIM information elements and corresponding implementation methods thereof; network devices constituting the network, by supporting the network device class And all kinds of network devices Corresponding CIM information elements and their corresponding implementation methods are used for network management.

Preferably, in the foregoing method, the network device class is an abstraction of a network device, and the network device includes at least one or more of the following:

Routers, Switches, Digital Subscriber Line Access Multiplexers (DSLAM), Firewalls, Intrusion Detection Systems/Intrusion Prevention Systems (IDS/IPS), Deep Packet Inspection (DPI), Wireless LAN Access Points (APs), Home Gateways (RG), Broadband Access Server (BRAS), Base Station (BS), Packet Data Network Gateway (PDN-GW).

Preferably, in the foregoing method, the router includes at least one or more of the following:

Access routers, aggregation routers, core routers, and carrier edge routers (PEs), customer edge routers (CEs).

Preferably, in the above method, each engine class included in the network device class corresponds to an independent physical network device module; or all engine classes correspond to an integrated unified physical network device; or each engine class is separately combined. Corresponds to different physical network modules.

Preferably, in the above method, the routing engine class supports the management of the routing engine, and the CIM information element corresponding to the routing engine class includes at least: a routing protocol configuration parameter, a status parameter, and a routing table, where the routing engine class corresponds to The implementation method at least includes routing protocol configuration, state monitoring, route calculation, routing table and forwarding table synchronization.

Preferably, in the foregoing method, the forwarding engine class and the processing engine class implement management of a forwarding and processing engine, and the CIM information element corresponding to the forwarding engine class and the processing engine class includes at least a forwarding packet, and the forwarding engine The implementation method corresponding to the class and the processing engine class includes at least forwarding and policy processing of the message, and the policy processing of the >3⁄4 text includes at least QoS policy setting, change, and status processing.

Preferably, in the above method, the processing engine class further implements policy processing of a firewall function, an access control list (ACL) function, a load balancing, an IDS/IPS, and a DPI function.

Preferably, in the above method, the management engine class supports management of the network device, and the CIM information element corresponding to the management engine class at least includes: a network management interface type, a network management communication protocol parameter, and the management engine class corresponds to The implementation method at least includes: setting, modification, and state processing of parameters of the network management interface, the network management communication protocol. Preferably, in the foregoing method, the management function of the network device includes at least configuration management and state management.

Preferably, in the above method, the network connection class is an abstraction of a connection link between network devices, and the connection link includes at least one or more of the following:

Fiber optic cable, twisted pair (UTP), Label Switched Tunnel (LSP), other IP tunnels, circuits. Preferably, in the above method, the server class refers to a server required to implement network functions. Preferably, in the above method, the network class further includes a network service class supported by the network, and the network service class includes at least one or more of the following:

DHCP, DNS, VPN, Virtual Network (VN) and Authentication and Accounting (AAA). Preferably, in the above method, the CIM information element corresponding to the network interface class includes at least a MAC address and an IP address of the interface, and the implementation method corresponding to the network interface class includes at least setting and modifying the MAC address and the IP address of the interface. .

Preferably, in the above method, when the network device class is defined based on the CIM syntax, the management domain information element is further defined.

Preferably, in the above method, the network device class further includes: a switching matrix class, configured to manage a switching matrix of the network device, where the CIM information element corresponding to the switching matrix class includes at least: state information of the switching matrix, The implementation method corresponding to the switching matrix class includes at least setting and modifying the state information of the switching matrix.

The invention also discloses a public information model (CIM) based network management system, the system comprising:

a network device, configured to: support a network device class defined by a CIM grammar, and a corresponding CIM information element constituting the network device class and a corresponding implementation method thereof, where the network device class is at least a network interface class, a routing engine class, a forwarding engine class, a processing engine class, and a management engine class;

The network management server is configured to: perform network management on the network formed by the network device. Preferably, in the above system, the network device class is an abstraction of a network device, and the network device includes at least one or more of the following: Routers, Switches, Digital Subscriber Line Access Multiplexers (DSLAM), Firewalls, Intrusion Detection Systems/Intrusion Prevention Systems (IDS/IPS), Deep Packet Inspection (DPI), Wireless LAN Access Points (APs), Home Gateways (RG), Broadband Access Server (BRAS), Base Station (BS), Packet Data Network Gateway (PDN-GW).

Preferably, in the above system, the router includes at least one or more of the following:

Preferably, in the above system, each engine class included in the network device class corresponds to an independent physical network device module; or all engine classes correspond to an integrated unified physical network device; or different engine classes The combination corresponds to different physical network modules.

Preferably, in the above system, the routing engine class supports the management of the routing engine, and the CIM information element corresponding to the routing engine class includes at least: a routing protocol configuration parameter, a state parameter, and a routing table, where the routing engine class corresponds to The implementation method at least includes routing protocol configuration, state monitoring, route calculation, routing table and forwarding table synchronization.

Preferably, in the above system, the forwarding engine class and the processing engine class implement management of the forwarding and processing engine, and the CIM information element corresponding to the forwarding engine class and the processing engine class includes at least a forwarding packet, and the forwarding engine The implementation method corresponding to the class and the processing engine class includes at least forwarding and policy processing of the message, and the policy processing of the >3⁄4 text includes at least QoS policy setting, change, and status processing.

Preferably, in the above system, the processing engine class further implements policy processing of a firewall function, an access control list (ACL) function, a load balancing, an IDS/IPS, and a DPI function.

Preferably, in the above system, the management engine class supports management of the network device, and the CIM information element corresponding to the management engine class at least includes: a network management interface type, a network management communication protocol parameter, and the management engine class corresponds to The implementation method at least includes: setting, modification, and state processing of parameters of the network management interface, the network management communication protocol.

Preferably, in the above system, the management function of the network device includes at least configuration management and state management.

Preferably, in the above system, the system further includes a connection link between the network devices, where The connection link is abstracted as a network connection class, and the connection link includes at least one or more of the following: an optical cable, a twisted pair (UTP), a label switched tunnel (LSP), other IP tunnels, and circuits. Preferably, in the above system, the system further includes a server required to implement a network function, and the server abstraction is a server class.

Preferably, in the above system, the system further includes at least: DHCP, DNS, VPN, virtual network (VN), and authentication and accounting (AAA), which are abstracted into network service classes supported by the network.

Preferably, in the above system, the CIM information element corresponding to the network interface class includes at least the MAC address and the IP address of the interface, and the implementation method corresponding to the network interface class includes at least the setting and modification of the MAC address and the IP address of the interface. .

Preferably, in the above system, when the network device class is defined based on the CIM syntax, the management domain information element is further defined.

Preferably, in the foregoing system, the network device class further includes: a switching matrix class, configured to manage a switching matrix of the network device, where the CIM information element corresponding to the switching matrix class at least includes: state information of the switching matrix, The implementation method corresponding to the switching matrix class includes at least setting and modifying the state information of the switching matrix.

The technical solution of the present application provides a general network class definition, which can be applied to the abstraction of all current network types, solves the lack of the NSMWG solution, and implements CIM-based network management. BRIEF abstract

Figure 1 is a CIM structure diagram of the NSMWG;

2 is a schematic diagram of the network structure of the implementation case 1. Preferred embodiment of the invention

The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments of the present application may be combined with each other arbitrarily. Example 1

From the scale of the existing network and the scope of application, the network can be divided into several categories: carrier network, data center network and enterprise network. Of course, the carrier network can be further divided, for example, including typical broadband Internet, and mobile Internet, and so on. In terms of scale, the network of operators can be further divided into global carrier networks, national backbone networks, or regional/regional networks, as well as local networks.

The inventors found that although operators, data centers, and enterprise networks are different in terms of customers and functions, they are different in network composition and composition, and because network technologies are constantly evolving, they can pass different Network technology to form a network, such as an ATM-based IP network, or an IP network based on an SDH/DWDM transmission network, but due to the development of network technologies and network applications, it tends to merge IP networks, and therefore, from the network technology architecture Look, the current mainstream network technology is IP network technology, using routing, or switching, or routing + switching network mechanisms to build the network. Therefore, in the following description, in the following description, different network types are no longer distinguished, but a general network model is described.

Based on the above idea, the embodiment provides a CIM-based network management method, which includes the following operations:

Defining a network class based on a CIM grammar, the network class comprising a network device class, a network connection class, and a server class, the network device class being at least a network interface class, a routing engine class, a forwarding engine class, a processing engine class, and a management engine class a composition, wherein each component class of the network class and each component class of the network device class are respectively composed of corresponding CIM information elements and corresponding implementation methods thereof; network devices constituting the network, by supporting the network device class And various types of corresponding CIM information elements constituting the network device and corresponding implementation methods thereof, and performing network management.

Among them, according to the terminology of DMTF CIM, the so-called network model is generally implemented by defining a specific network class, and further related classes, or related attributes. We know that telecommunications networks have evolved over 150 years, and computer networks or data communication networks have evolved over 50 years. Various technologies have also been developed, such as telegraph networks, program-controlled switching networks, x.25 packet switching, in frames. Following, ATM, Ethernet, TCP/IP, and more. From the perspective of user access, it also includes Ethernet access for LAN, DSL access based on telephone line, CABLE based on CATV. MODEM access, as well as wireless-based WLAN access, GSM/GPRS, CDMA, LTE and other network technologies. From the perspective of specific networking devices, it also includes various network devices such as bridge devices, switch devices, router devices, WLAN access point APs, base station devices, GGSN/SGSN, PDN-GW, BRAS, firewalls, and so on. Certain devices, such as routers, can be further classified according to their capabilities and deployment scenarios, including access routers, aggregation routers, and core routers, as well as PEs and CEs. Obviously, it is still quite difficult and complicated to abstract the conceptual model of such a wide variety of network devices and networks. The invention highly summarizes and abstracts the network model/network class from the commonality of the network devices and the commonality of the network functions, and ensures that the generalization and abstraction are easy to implement and implement in the implementation of the specific network device. The effectiveness and comprehensiveness of the network enables the management of networks of various network technologies and uses.

FIG. 2 is a schematic structural diagram of a network class of this embodiment. In the figure, the network class is the core class, defined based on the CIM syntax. As shown in the figure, the network class includes: a network device class, a network connection class, and an application server class;

In Fig. 2, it is also shown that, based on the CIM syntax, various network functions can be implemented and managed by network classes, network device classes and their constituent classes. Specific features or applications/services, including: network management functions/services, VPN services, virtual network services, DHCP and DNS, and AAA services/functions. The connection relationship between the types also follows the CIM definition, the relationship between the types, or the current CIM syntax, such as SystemDevice, or SystemComponent. Among them, the physical device to network device class uses the explicit representation method AbstractBy/AbstractedFrom. In addition, some classes, such as the network interface NetworkPort, follow the existing definition. The definition of the endpoint, such as LinkEndPoint, is different from the existing LANEndpoint, and may include the configuration of the MAC address, and the configuration of the IP address, or may only include the configuration of the MAC address, and the configuration of the IP address may be Another class in IPProtocolEndpoint is defined. The reason for this is that the related classes can be combined without affecting the substance of the invention. Similarly, in FIG. 2, a configuration service class of each related network device component class is also included, and they are merged together due to the saving of the graphic space. It can also be expressed separately. In addition, the related figures in Figure 2 indicate the corresponding schematic/reference of the relevant quantity relationship of the class, which can be adjusted. The network device class may be composed of: a network interface class, a routing engine class, a forwarding engine class, a processing engine class, and a management engine class;

The network interface class, the routing engine class, the forwarding engine class, the processing engine class, and the management engine class are respectively composed of related CIM information elements and implementation methods related to the information elements;

The network device constituting the network can realize network management by supporting the network device class and the related CIM information elements of the related component classes and the related methods thereof.

The CIM information elements of the class refer to related parameters of the functions supported by the class, and corresponding processing methods. For example, for the network interface class, including the interface's MAC address, IP address and other information elements, and how to set these addresses. Other information elements may also include status information, execution result information of management commands, and the like, and how to set and read these states. It should be further explained that some of the classes involved here can inherit some content from existing CIM classes without having to completely define them. It should be further noted that the network device class is abstraction including but not limited to the following physical network devices: router, switch, DSLAM, firewall, IDS/IPS, DPI, AP, RG, BRAS, BS, PDN-GW. The routers may be further classified according to different capabilities of the device and the deployment scenarios, including: access routers, aggregation routers, and core routers, and PEs, CEs, and the like.

The engine classes included in the network device class may correspond to independent physical network device modules, or an integrated system, a physical network device, or a physical network module. It is also possible that in a specific network device implementation, there are several different engine combinations that are possible to implement the module.

The routing engine class supports the management of the routing engine, including the supported routing protocols, routing protocol configuration, state monitoring, route calculation, and synchronization with routing tables and forwarding tables.

The forwarding engine class and the processing engine class implement packet processing, mainly forwarding processing and QoS policy processing.

The processing engine class can also implement firewall functions, ACL functions, load balancing, and IDS/IPS.

Policy processing of functions such as DPI functions.

The management engine class supports the management functions of network devices, including but not limited to: network management interface, network management communication protocol and parameter definition, and network management function. Network management functions, including but not limited to: configuration management, status management.

A network connection class is an abstraction of a connection link between network devices. The connection links include, but are not limited to, fiber optic cables, UTPs, LSPs, other IP tunnels, and circuits.

The application server class refers to the server required to implement network functions, usually a computer system.

The network class also includes network service classes supported by the network. The network service class includes but is not limited to: network services such as DHCP, DNS, VPN, VN, and AAA.

Network device classes include: Management domain information elements. Specifically, the so-called management domain can be implemented by attaching to an attribute of the network device, which is mainly for the convenience of the network administrator.

Optionally, the network device class further includes: a switch matrix class, which is used for managing a switch fabric of a network device, because for a large network device, multiple switch fabric modules may exist and need to be managed. The CIM information element corresponding to the switching matrix class includes at least: state information of the switching matrix, and the implementation method corresponding to the switching matrix class includes at least setting and modifying the state information of the switching matrix. Status information includes: normal work, backup, failure, etc.

It should be further explained that the names of these engines may have different naming methods. For example, the routing engine may be called: a routing protocol engine, or a protocol processing engine, or a protocol processing module, a main control module, and the like. However, this does not affect the substantial content of the present invention, that is, the network device generally has protocol processing or implements a processing function of the protocol. The specific protocol, under the existing network technology system, includes at least: a routing protocol, an LDP protocol, and a related protocol function in implementing a TCP/IP protocol.

Similarly, the forwarding and processing engine generally corresponds to the line interface card LIC in the existing network technology, implements packet forwarding, and optionally related policy processing. For the processing engine, it further includes other functions, such as deep packet inspection DPI, that is, not only processing the packet header, but also deeply analyzing the payload of the packet, such as NAT address translation, such as packet filtering, etc. Processing of network functions.

The advantage of this implementation case is that it provides a common network class definition, which can be applied to the abstraction of all current network types, solves the lack of NSMWG solutions, and implements CIM-based network management. Example 2

The embodiment provides a CIM-based network management system, which can implement the network management method of Embodiment 1 above. Specifically, the system includes a network device and a network management server.

a network device, which supports a network device class defined by a CIM grammar and various corresponding CIM information elements constituting the network device class and corresponding implementation methods thereof, wherein the network device class is at least a network interface class, a routing engine class, and a forwarding The engine class, the processing engine class, and the management engine class are composed.

The network management server performs network management on the network devices constituting the network.

It should be noted that the foregoing network device class is an abstraction of a network device, and the network device includes at least: a router, a switch, a digital subscriber line access multiplexer (DSLAM), a firewall, an intrusion detection system/intrusion protection system (IDS/IPS). Deep Packet Inspection (DPI), Wireless LAN Access Point (AP), Home Gateway (RG), Broadband Access Server (BRAS), Base Station (BS), Packet Data Network Gateway (PDN-GW).

The router includes at least: an access router, an aggregation router, a core router, and a carrier edge router (PE) and a customer edge router (CE).

In addition, each engine class included in the network device class corresponds to an independent physical network device module; or all engine classes correspond to an integrated unified physical network device; or each engine class is combined to correspond to a different physical network module.

In some scenarios, when the network device class is defined based on the CIM syntax, it also includes defining an administrative domain information element. Moreover, the network device class may further include: a switching matrix class for managing a switching matrix of the network device.

In addition, the above system further includes a connection link, and the network connection class is an abstraction of a connection link between the network devices, and the connection link includes at least: an optical cable, a twisted pair (UTP), a label switched tunnel (LSP), and other IP. Tunnels and circuits.

The above system also includes a server, and the server class is an abstraction of the server required to implement the network function, typically a computer.

The following describes the implementation of each component class of the network device class.

The CIM information element corresponding to the network interface class includes at least the MAC address and IP address of the interface. The implementation method corresponding to the network interface class includes at least setting and modifying the MAC address and the IP address of the interface.

The routing engine class supports the management of the routing engine. The CIM information element corresponding to the routing engine class includes at least: a routing protocol configuration parameter, a state parameter, and a routing table. The implementation method corresponding to the routing engine class includes at least a routing protocol configuration, and a state. Monitoring, routing calculations, synchronization of routing tables and forwarding tables.

The forwarding engine class and the processing engine class implement the management of the forwarding and processing engine, and the CIM information element corresponding to the forwarding engine class and the processing engine class includes at least a forwarding packet, and the forwarding engine class and the processing engine class corresponding implementation method are at least The method includes the following steps: forwarding and policy processing of the packet, where the policy processing of the packet includes at least QoS policy setting, change, and status processing.

Preferably, the processing engine class can also implement policy processing of firewall functions, access control list (ACL) functions, load balancing, IDS/IPS, and DPI functions.

The management engine class supports the management of the network device, and the CIM information element corresponding to the management engine class includes at least: a network management communication protocol parameter, and the implementation method corresponding to the management engine class at least includes: a network management interface, a parameter of the network management communication protocol Setup, modification, and status processing. The management functions for network devices include at least configuration management and state management.

Based on the above system, the network class may further include a network service class supported by the network, and the network service class includes at least: DHCP, DNS, VPN, virtual network (VN), and authentication and accounting (AAA).

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program instructing the associated hardware, such as a read-only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. This application is not limited to any specific form of combination of hardware and software.

The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention, All should be included in the scope of protection of the present invention.

Industrial applicability

The technical solution of the present application provides a general network class definition, which can be applied to the abstraction of all current network types, solves the lack of the NSMWG solution, and implements CIM-based network management.

Claims

Claim

A network management method based on a Common Information Model (CIM), the method comprising: defining a network class based on a CIM grammar, the network class comprising a network device class, a network connection class, and a server class, the network device class being at least The network interface class, the routing engine class, the forwarding engine class, the processing engine class, and the management engine class, wherein each component class of the network class and each component class of the network device class are respectively composed of corresponding CIM information elements and The corresponding implementation method comprises: the network device constituting the network performs network management by supporting the network device class and various corresponding CIM information elements constituting the network device and corresponding implementation methods thereof.

2. The method of claim 1, wherein the network device class is an abstraction of a network device, the network device comprising at least one or more of the following:

The method according to claim 2, wherein the router includes at least one or more of the following:

The method of claim 1, wherein each engine class included in the network device class corresponds to an independent physical network device module; or all engine classes correspond to an integrated unified physical network device; or Each engine class is combined to correspond to a different physical network module.

The method of any one of claims 1 to 4, wherein the routing engine class supports management of a routing engine, and the CIM information element corresponding to the routing engine class includes at least: a routing protocol configuration parameter and a state parameter. And a routing table, the implementation method corresponding to the routing engine class includes at least a routing protocol configuration, a state monitoring, a route calculation, a routing table, and a forwarding table synchronization.

The method according to any one of claims 1 to 4, wherein the forwarding engine class and processing The engine class implements management of the forwarding and processing engine, and the forwarding engine class and the processing engine class correspond to

The CIM information element includes at least a forwarding packet, and the implementation method corresponding to the forwarding engine class and the processing engine class includes at least packet forwarding and policy processing, and the policy processing of the packet includes at least QoS policy setting, change, and status processing. .

7. The method of claim 6, wherein the processing engine class further implements policy processing of firewall functions, access control list (ACL) functions, load balancing, IDS/IPS, and DPI functions.

The method according to any one of claims 1 to 4, wherein the management engine class supports management of a network device, and the CIM information element corresponding to the management engine class includes at least: a network management interface type, and network management. The communication protocol parameter, the implementation method corresponding to the management engine class includes at least: a network management interface, a parameter setting, modification, and status processing of a network management communication protocol.

The method according to claim 8, wherein the management function for the network device includes at least configuration management and state management.

The method according to any one of claims 1 to 4, wherein the network connection class is an abstraction of a connection link between network devices, and the connection link includes at least one or more of the following: , twisted pair (UTP), label switched tunnel (LSP), other IP tunnels, circuits.

The method according to any one of claims 1 to 4, wherein the server class refers to a server required to implement a network function.

The method according to any one of claims 1 to 4, wherein the network class further includes a network service class supported by the network, and the network service class includes at least one or more of the following:

DHCP, DNS, VPN, Virtual Network (VN) and Authentication and Accounting (AAA).

The method according to any one of claims 1 to 4, wherein the CIM information element corresponding to the network interface class includes at least a MAC address and an IP address of the interface, and the implementation method corresponding to the network interface class includes at least an interface. The setting and modification of the MAC address and IP address.

14. The method according to any one of claims 1 to 4, wherein

When the network device class is defined based on the CIM syntax, it also includes defining a management domain information element.

The method of claim 14, wherein the network device class further comprises: a switching matrix class, configured to manage a switching matrix of the network device, where the CIM information element corresponding to the switching matrix class at least includes: The state information of the matrix, the implementation method corresponding to the switch matrix class includes at least setting and modifying the state information of the switch fabric.

16. A network management system based on a Common Information Model (CIM), the system comprising: a network device configured to: support a network device class defined based on a CIM syntax and various corresponding CIM information elements constituting the network device class And corresponding implementation method, where the network device class is at least composed of a network interface class, a routing engine class, a forwarding engine class, a processing engine class, and a management engine class;

The network management server is configured to: perform network management on the network formed by the network device.

The system of claim 16, wherein the network device class is an abstraction of a network device, and the network device includes at least one or more of the following:

The system of claim 17, wherein the router comprises at least one or more of the following:

The system of claim 16, wherein each engine class included in the network device class corresponds to an independent physical network device module; or all engine classes correspond to an integrated unified physical network device; or Different combinations of engine classes correspond to different physical network modules.

The system according to any one of claims 16 to 19, wherein the routing engine class supports management of a routing engine, and the CIM information element corresponding to the routing engine class includes at least: a routing protocol configuration parameter and a state parameter. And a routing table, where the implementation method corresponding to the routing engine class includes at least Including routing protocol configuration, status monitoring, route calculation, routing table and forwarding table synchronization.

The system according to any one of claims 16 to 19, wherein the forwarding engine class and the processing engine class implement management of a forwarding and processing engine, and the forwarding engine class and the CIM information element corresponding to the processing engine class The method includes at least a forwarding message, and the implementation method corresponding to the forwarding engine class and the processing engine class includes at least a packet forwarding and policy processing, where the policy processing of the packet includes at least QoS policy setting, change, and status processing.

22. The system of claim 21, wherein the processing engine class further implements policy processing of firewall functions, access control list (ACL) functions, load balancing, IDS/IPS, and DPI functions.

The system according to any one of claims 16 to 19, wherein the management engine class supports management of a network device, and the CIM information element corresponding to the management engine class includes at least: a network management interface type, network management The communication protocol parameter, the implementation method corresponding to the management engine class includes at least: setting, modification, and state processing of parameters of the network management interface and the network management communication protocol.

The system of claim 23, wherein the management function of the network device comprises at least configuration management and state management.

The system according to any one of claims 16 to 19, wherein the system further comprises a connection link between the network devices, the connection link is abstracted as a network connection class, and the connection link is at least Includes one or more of the following:

Fiber optic cable, twisted pair (UTP), Label Switched Tunnel (LSP), other IP tunnels, circuits.

The system according to any one of claims 16 to 19, wherein the system further comprises a server required to implement a network function, the server abstraction being a server class.

27. The system of claim 26, wherein the system further comprises at least: DHCP, DNS, VPN, Virtual Network (VN), and Authentication and Accounting (AAA), abstracted as network services supported by the network. class.

The system according to any one of claims 16 to 19, wherein the network interface class pair The corresponding CIM information element includes at least the MAC address and the IP address of the interface, and the implementation method corresponding to the network interface class includes at least the setting and modification of the MAC address and the IP address of the interface.

A system according to any one of claims 16 to 19, wherein

The system of claim 29, wherein the network device class further comprises: a switching matrix class, configured to manage a switching matrix of the network device, where the CIM information element corresponding to the switching matrix class comprises at least: The state information of the matrix, the implementation method corresponding to the switch matrix class includes at least setting and modifying the state information of the switch fabric.