111 results about "Virtual network topology" patented technology

A network simulation apparatus and method for analyzing abnormal network traffic are provided. The network simulation apparatus includes: a traffic information collection unit, which collects traffic information in real time from a network; a simulator, which performs a simulation operation in a virtual network topology environment according to a predetermined scenario, the virtual network topology environment generating virtual traffic including a normal virtual packet modeled based on a normal traffic environment and an abnormal virtual packet modeled based on an abnormal traffic environment with a network traffic attack launched thereupon based on the collected real-time traffic information; and an interface unit, which provides the simulation operation results to a user. Accordingly, it is possible to effectively detect, analyze, and deal with abnormal network traffic that has occurred in a network to be managed.

A Secure Service Network (SSN) in which at least two participants having a relationship are connected to a physical network by way of Secure Service Gateways and share information defined by one or more Service Definitions allowing for the creation of a secure Virtual Service Connection (VSC) between the participants in which the VSC is specific to the activity being performed and the participants provisioned for that activity. SSN enables the creation of a secure virtual network topology on any network transport that allows participants to exchange documents and transact business over the network real time, where all activity inherits a business and security infrastructure that is independent and in addition to the applications, devices, web services, users using the network.

The embodiment of the invention discloses a virtual network mapping processing method and system. The method comprises the following steps: according to perimeter network status information of each region sent by management entity equipment in each region, dividing the request topology of a received virtual network topology request into a plurality of virtual subnets, and decomposing each virtualsubnet into a virtual element request sequence respectively; distributing each virtual element request sequence to the management entity equipment in each region, and carrying out mapping matching onthe logical topology and physical topology of each virtual subnet by the management entity equipment in each region in accordance with each virtual element request sequence; and merging virtual subnet mapping information sent by the management entity equipment in each region, and feeding back generated final mapping information after merging to virtual network users. The system comprises central management entity equipment and a plurality of regional management entity equipment. By utilizing the method and system provided by the invention, the processing bottleneck problem caused by overhigh computing resource consumption in the prior art is solved.

The invention provides a network topology discovering method, device and system. The method is used in a virtualization operating environment which comprises a host server and a physical switch. The host server comprises a virtual machine, a virtual machine switch and a physical network card. The method comprises the steps that according to virtualization information which is obtained through a virtual machine management server, virtual network topology is obtained; according to an ARP table of the physical switch, an MAC address forwarding table of the physical switch and the IP, obtained through the virtual machine management server, of a management port of the host server, connection relation between the management port and a physical switch port is obtained; according to the virtual network topology, the MAC address forwarding table of the physical switch and a virtual machine MAC address in virtualization information, connection relation between the physical network card bound by the virtual machine switch correlated with the virtual machine and the physical switch port is obtained; according to the two kinds of connection relation, physical network topology is obtained.

A method of graphically depicting various network elements of a communications network in a virtual network topology via a graphical user interface (“GUI”) is disclosed. The virtual network topology depicts logical relationships between network components instead of merely depicting physical network component relationships. A system network subset and a monitoring network subset of the communications network are defined according to one layer N of the open system interconnection (“OSI”) layer model. Various logical links are established between the system network and the monitoring network. A virtual topology is defined that depicts the various logical links according to another OSI layer M. The virtual topology is displayed via a GUI that enables modification of the logical links to occur.

Methods and systems are disclosed for scalable advertising of an abstracted form of an arbitrary network of nodes and links to external nodes or networks. One or more phantom hub nodes can be used that are connected to at least one node, forming one or more virtual network topology representing the internal connectivity of the network.

A method and apparatus is disclosed herein for delivering information over time-varying networks. In one embodiment, the method comprises, for each of a plurality of time intervals, determining a virtual network topology for use over each time interval; selecting for the time interval based on the virtual network topology, a fixed network code for use during the time interval; and coding information to be transmitted over the time-varying network topology using the fixed network code with necessary virtual buffering at each node.

A Dynamic Hierarchical Address Resource Management Architecture (DHARMA) coordinates a logical hierarchy of address spaces with a virtual topology of network elements using a manageable database environment. Address spaces are apportioned into hierarchical levels in accordance with a network policy. Network elements may be represented as objects, coupled via the logical address space. Both address space hierarchy definition and virtual topology modelling may occur independent from actual network deployment. As a result, multiple address space hierarchy definitions and virtual topologies can be pre-generated and stored for selective use during network deployment. With such an arrangement, a flexible addressing architecture is provided which may advantageously be: used in any network that desires dynamic network configuration. The connection between the logical address hierarchy and the virtual network topology may advantageously be implemented through the use of a logical tag that links a virtual network element to a logical address hierarchy level.

The invention discloses a method for mapping a mobile virtual network based on clustering. The method for mapping the mobile virtual network based on the clustering aims to improve the mapping success rate from a virtual network to a mobile physical network and virtual network revenue and to reduce mapping overhead. The method for mapping the mobile virtual network based on the clustering takes the physical network clustering as a basis and solves the problems that nodes and links in the process of virtual network mapping and in the process of resource allocation are poor in coordination, and algorithm performance is poor when virtual network topology is sparse in a mobile network environment. The method for mapping the mobile virtual network based on the clustering comprises the following steps: according to the displacement law of the nodes, predicting stability of the links among the nodes, clustering the physical network accordingly, and dividing the virtual network mapping into an inter-cluster mapping mode and an inside-cluster mapping mode. According to the method for mapping the mobile virtual network based on the clustering, due to the fact that a clustering method based on node prediction and the inter-cluster and the inside-cluster mapping modes based on the clustering are introduced, the virtual network mapping can achieve efficient and high success rate of request for the virtual network in the mobile network environment as well.

A method for monitoring traffic in a network is provided. The method is used in a communication device, wherein the network is formed by switches and hosts. The method includes: collecting LLDP information, VLAN information, host NIC information and host-tenant mapping information to obtain a physical network topology and a plurality of virtual network topologies; detecting a plurality of physical link loads of the physical network topology; obtaining a target path between two of the hosts or between the switches by analyzing the virtual network topologies; selecting one of the switches on the target path to serve as a mirror switch according to the physical link load corresponding to the target path or a hop count; and receiving mirror traffic transmitted from the mirror switch, and performing packet payload analysis on the mirror traffic.

The invention relates to a method and a system for establishing a virtual network on the basis of multi-grit abstract theory. The method includes performing configuration of the topological environment and application scenes of the virtual network; converting the configuration into uniformly described configuration files of the virtualized network environment on the basis of multi-grit computing resources; analyzing the scenes of the virtual network according to the configuration files, and automatically analyzing scene descriptions of the analyzed configuration files; and completing establishing of the virtual network by means of a distributed type centerless structure and enabling network flow of nodes different in grit to be in non-inductive integration. By establishing the virtual network via multi-grit simulation manners like mathematic models and analog, simulation and physical equipment and realizing non-inductive integration of flows different in grit, a platform is enable to have a simulation function of network behaviors with fine grit, and conflict between establishing cost and simulation reality of the virtual network can be effectively balanced.

The invention provides a network background generation method based on multi-node traffic playback. A multi-node network traffic playback work is completed by mutually calling a traffic file pre-processing module, a playback network generation module and a multi-node traffic playback module together; the traffic file pre-processing module provides input information for the playback network generation module; the traffic file pre-processing module divides a traffic file, generates a data stream file, and performs statistical analysis on the data stream file so as to form statistical information; the statistical information of the traffic file pre-processing module is used for outputting configuration files, required for construction of playback network topology, by means of playback networkmapping; a playback network is generated according to the configuration files, and the analyzed and processed data stream files are distributed to all nodes; under the premise that a user only uploads the traffic files and a small number of parameters, virtual network topology is generated by analyzing the traffic files and utilizing the statistical information; background traffic generation is completed by using a way of multi-node traffic playback.

The invention discloses a multi-operator ODN sharing and heterogeneous PON unified management method. The method comprises the following steps: 1, a soft defined virtual passive optical network overall system framework, that is, providing an open control interface in a PON access network to implement a programmable intelligence management and control platform, dividing resources into multiple slices virtually and flexibly, and independently forwarding the slices by operators in respective virtual resource channels; 2, components of a virtual passive optical network system; 3, a virtual passiveoptical network configuration working mechanism; 4, a sharing PON equipment increases software-defined identifiers of telecom operators; 5, a multi-operator sharing work configuration mechanism; 6, adata forwarding mechanism; 7, a system management; 8, pool grouping; 9, virtual network topology; 10, QoS implementation; 11, the realization of security assurance and coexistence transition; 12, therealization of energy-saving mechanism; and 13, collaborative management with the upper-level network. The multi-operator ODN sharing and heterogeneous PON unified management method has the advantages of realizing the indiscriminate opening of the service level and reducing the construction cost of the resident network.

The invention discloses a video monitoring multi-service convergence platform and a solution. The video monitoring multi-service convergence platform is composed of an intelligent network processor (INP) and a broadcast network processor (BNP). The INP is used for managing hardware resources and lifecycle of video monitoring virtual capacity resources and setting and maintaining of virtual network topology in the BNP. The BNP is used for calling the video monitoring virtual capacity resources of the INP and setting different video monitoring virtual networks for different services of different types of users and carrying out video monitoring. Thus, quasi physical isolation of the different services of the different types of users can be guaranteed, quasi physical isolation between the INP and the BNP can be guaranteed, video monitoring can be flexibly set for the different services of the different types of users, and isolation and safety of the different services of the different types of users under the video monitoring can be guaranteed.

A communication system includes: a plurality of communication nodes; and a control apparatus that controls packet processing of the plurality of communication nodes. The control apparatus further includes: a virtualization unit that configures a virtual node(s) from a plurality of communication nodes among the plurality of communication nodes; a control unit that sets a processing rule for a packet in at least one communication node of the plurality of communication nodes included in the virtual node(s), so that the at least one communication node executes packet processing corresponding to an operation of the virtual node(s); and a path calculation unit that calculates a forwarding path of a packet, based on a virtual network topology including the virtual node(s). The plurality of communication nodes process a packet corresponding to the forwarding path, in accordance with the processing rule.

The invention discloses a virtual network topological self-service generation method and system. After detecting log-in of a user terminal, a network controller detects the presence of virtual network topological resources of related users and sends the detection result to the user terminal. If the detection result indicates that virtual network topological resources of related users do not exist in the network controller, a user terminal can further determine whether the related users have the right for self-service application of virtual network topology. If related users have the right for self-service application of virtual network topology, the user terminal applies virtual network topological resources from the network controller, and generates virtual network topology according to virtual network topological resources allocating result fed back by the network controller. Virtual network topology is provided to each user through network virtualization capability of transmission SDN network, so that a user can adjust virtual network topology according to self needs.

The invention discloses a unified network configuration and control method supporting the packet/circuit mixed exchange network, and the configuration and control method can realize unified control for the packet/circuit heterogeneous exchange network and greatly reduce end-to-end routing time delay. Each circuit exchange subnet is provided with a virtual router, and the virtual routers and practical routers form a virtual network topology which is used for routing calculation and connection control. Part of bandwidth resource is separated from each circuit exchange subnet to form a catching layer, and residual resources form a load layer. Fixed connection among all edge node pairs of the subnet is established in the catching layer. When a serve crossing the subnet arrives, data transmission is carried out via fixed connection of the catching layer, and new connection is established for the service in the load layer. After new connection is established, service carried in the catching layer is switched to newly established connection of the load layer, and resource of fixed connection of the catching layer is released.

The invention discloses a system and a method for acquiring a network topology and a server. The method comprises the following steps: acquiring virtual network topology information in the server, topology information between the server and network equipment, and topology information between the network equipment; and making a network topology according to the obtained topology information of anyone or any combination of the following items: virtual network topology information in the server, topology information between the server and the network device, and complete topology information between the network device and the network device. According to the invention, complete network topology information is obtained.

A controller implemented on computing equipment may be used to control switches in a network. End hosts may be coupled to the switches. The controller may generate a virtual network topology of virtual switches, virtual routers, and virtual system routers that are distributed over underlying switches in the network. The controller may form virtual switches from respective groups of end hosts, virtual routers from groups of virtual switches that include virtual interfaces that are coupled to virtual switches, and a virtual system router from groups of virtual routers that includes virtual system router interfaces that are coupled to the virtual routers. The controller may control the virtual network topology by generating respective flow table entries based on identified network policies for each of the virtual routers, virtual system routers, and virtual switches. The controller may control the virtual system routers to route packets between the virtual routers.

Methods and systems for generating a virtual network topology for machine-to-machine communications. A set of input information including network information and configuration information is obtained. One or more virtual serving gateways for the virtual network are located at one or more physical hosts, and each machine is associated with a respective virtual serving gateway, in accordance with the network information and the configuration information. A set of output information defining the virtual network topology is generated.

The invention discloses a scale network reproduction method. The method includes the following steps that: physical resources are selected according to the preset requirement of a reproduction servicein a scale network; a physical resource network and a virtual network topological structure are constructed according to the physical resources; a multi-mode joint simulation system is constructed onthe virtual network topological structure; and the multi-mode joint simulation system is scheduled on a preset cloud management platform, and the multi-mode joint simulation system is made to restorethe operation of the reproduction service in the scale network. With the method of the invention adopted, the accuracy of a simulation network can be ensured, the complexity of the simulation networkcan be greatly reduced, workload for setting up a simulation scenario can be reduced, and the operation efficiency of a simulation platform can be improved.