WO2014161315A1 - Procédé et système de gestion de réseau basés sur un modèle d'information commun - Google Patents

Procédé et système de gestion de réseau basés sur un modèle d'information commun Download PDF

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Publication number
WO2014161315A1
WO2014161315A1 PCT/CN2013/087182 CN2013087182W WO2014161315A1 WO 2014161315 A1 WO2014161315 A1 WO 2014161315A1 CN 2013087182 W CN2013087182 W CN 2013087182W WO 2014161315 A1 WO2014161315 A1 WO 2014161315A1
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Prior art keywords
class
network
management
network device
engine
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PCT/CN2013/087182
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English (en)
Chinese (zh)
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顾忠禹
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中兴通讯股份有限公司
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Publication of WO2014161315A1 publication Critical patent/WO2014161315A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/02—Standardisation; Integration
    • H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/02—Standardisation; Integration
    • H04L41/0233—Object-oriented techniques, for representation of network management data, e.g. common object request broker architecture [CORBA]

Definitions

  • 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).
  • CIM Common Information Model
  • 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.
  • 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.
  • DHCP Dynamic Host Configuration Protocol
  • DNS Domain Name System
  • 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.
  • the CIM model already includes some content of the network model, the coverage is relatively wide.
  • 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.
  • 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.
  • a specific, versatile, and operationally managed network model/network class is required.
  • the specific network device realizes network management by implementing the network class.
  • 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.
  • the present invention discloses a public information model (CIM) based network management method, the method comprising:
  • 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
  • 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.
  • the network device class is an abstraction of a network device, and the network device includes at least one or more of the following:
  • DSLAM Digital Subscriber Line Access Multiplexers
  • IDS/IPS Intrusion Detection Systems/Intrusion Prevention Systems
  • DPI Deep Packet Inspection
  • APs Wireless LAN Access Points
  • RG Broadband Access Server
  • BS Base Station
  • PDN-GW Packet Data Network Gateway
  • 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).
  • PEs carrier edge routers
  • CEs customer edge routers
  • 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.
  • 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 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.
  • the forwarding engine class and the processing engine class implement management of a forwarding and processing engine
  • the CIM information element corresponding to the forwarding engine class and the processing engine class includes at least a forwarding packet
  • the implementation method corresponding to the class and the processing engine class includes at least forwarding and policy processing of the message
  • the policy processing of the >3 ⁇ 4 text includes at least QoS policy setting, change, and status processing.
  • 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.
  • ACL access control list
  • the management engine class supports management of the network device
  • the CIM information element corresponding to the management engine class at least includes: a network management interface type, a network management communication protocol parameter
  • 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.
  • the management function of the network device includes at least configuration management and state management.
  • 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:
  • the server class refers to a server required to implement network functions.
  • 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:
  • the CIM information element corresponding to the network interface class includes at least a MAC address and an 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 management domain information element is further defined.
  • 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.
  • 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).
  • DSLAM Digital Subscriber Line Access Multiplexers
  • IDS/IPS Intrusion Detection Systems/Intrusion Prevention Systems
  • DPI Deep Packet Inspection
  • APs Wireless LAN Access Points
  • RG Broadband Access Server
  • BS Base Station
  • Packet Data Network Gateway PDN-GW
  • 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).
  • PEs carrier edge routers
  • CEs customer edge routers
  • 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.
  • 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, 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.
  • the forwarding engine class and the processing engine class implement management of the forwarding and processing engine
  • the CIM information element corresponding to the forwarding engine class and the processing engine class includes at least a forwarding packet
  • the implementation method corresponding to the class and the processing engine class includes at least forwarding and policy processing of the message
  • the policy processing of the >3 ⁇ 4 text includes at least QoS policy setting, change, and status processing.
  • 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.
  • ACL access control list
  • IDS/IPS IDS/IPS
  • DPI DPI
  • the management engine class supports management of the network device
  • the CIM information element corresponding to the management engine class at least includes: a network management interface type, a network management communication protocol parameter
  • 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.
  • the management function of the network device includes at least configuration management and state management.
  • 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.
  • the system further includes a server required to implement a network function, and the server abstraction is a server class.
  • 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.
  • DHCP DHCP
  • DNS DNS
  • VPN virtual network
  • VN virtual network
  • AAA authentication and accounting
  • the CIM information element corresponding to the network interface class includes at least the MAC address and the IP address of the interface
  • 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.
  • the management domain information element is further defined.
  • 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.
  • Figure 1 is a CIM structure diagram of the NSMWG
  • the network can be divided into several categories: carrier network, data center network and enterprise network.
  • the carrier network can be further divided, for example, including typical broadband Internet, and mobile Internet, and so on.
  • 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 embodiment provides a CIM-based network management method, which includes the following operations:
  • 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
  • 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.
  • DMTF CIM the so-called network model is generally implemented by defining a specific network class, and further related classes, or related attributes.
  • 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.
  • networking devices 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.
  • network devices such as bridge devices, switch devices, router devices, WLAN access point APs, base station devices, GGSN/SGSN, PDN-GW, BRAS, firewall
  • FIG. 2 is a schematic structural diagram of a network class of this embodiment.
  • the network class is the core class, defined based on the CIM syntax.
  • the network class includes: a network device class, a network connection class, and an application server class;
  • 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.
  • the physical device to network device class uses the explicit representation method AbstractBy/AbstractedFrom.
  • some classes, such as the network interface NetworkPort follow the existing definition.
  • the definition of the endpoint 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the names of these engines may have different naming methods.
  • 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.
  • 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.
  • 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.
  • the processing engine 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 embodiment provides a CIM-based network management system, which can implement the network management method of Embodiment 1 above.
  • 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.
  • 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).
  • DPI Deep Packet Inspection
  • AP Wireless LAN Access Point
  • RG Home Gateway
  • BRAS Broadband Access Server
  • BS Base Station
  • 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).
  • PE carrier edge router
  • CE customer edge router
  • 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 network device class 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.
  • connection link 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.
  • UTP twisted pair
  • LSP label switched tunnel
  • 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 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
  • the CIM information element corresponding to the forwarding engine class and the processing engine class includes at least a forwarding packet
  • 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.
  • the processing engine class can also implement policy processing of firewall functions, access control list (ACL) functions, load balancing, IDS/IPS, and DPI functions.
  • ACL access control list
  • IDS/IPS IDS/IPS
  • DPI 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.
  • 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).
  • 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.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un procédé et un système de gestion de réseau basés sur un modèle d'information commun (CIM). Le procédé décrit dans la présente invention comprend : la définition d'un type de réseau basé sur une syntaxe CIM, où le type de réseau comprend un type de dispositif réseau, un type de connexion réseau et un type de serveur, le type de dispositif réseau consistant au moins en un type d'interface réseau, un type de moteur de routage, un type de moteur de transfert, un type de moteur de traitement et un type de moteur de gestion, où chaque type de composition du type de réseau et chaque type de composition du type de dispositif réseau consiste respectivement en éléments d'information CIM correspondants et en procédés d'implémentation correspondant à ceux-ci; et un dispositif réseau formant un réseau exécutant une gestion de réseau au moyen des éléments d'information CIM supportant le type de dispositif réseau et correspondant à différents types formant le dispositif réseau et des procédés d'implémentation correspondant à ceux-ci. L'invention concerne également un système de gestion de réseau basé sur CIM. La solution technique de la présente invention peut s'appliquer à l'abstraction de tous les types de réseau actuels, en résolvant ainsi la déficience de la solution SCMWG, et en réalisant une gestion de réseau basée sur CIM.
PCT/CN2013/087182 2013-04-03 2013-11-15 Procédé et système de gestion de réseau basés sur un modèle d'information commun WO2014161315A1 (fr)

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