Industrial Technology Research Institute

Ming-Hung Hsu

Tzi-Cker Chiueh

Chien-Chao Tseng

Wei-Cheng Wang

Yu-Wei Lee

Shi-Wei Lee

Tzu-Lin Wang

Kuang-Yi Li

Yi-An Chen

Jong-Harn Ywi-Chi

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.

Method and device for monitoring traffic in a network

A virtual local area network configuration system, a method and a computer program product thereof are provided. The virtual local area network configuration system includes physical machines running virtual machines, Ethernet switches and a network controller. The network controller deploys VLAN groups according to the physical machines and the virtual machines, creates virtual topologies corresponding to the VLAN groups and assigns VLAN IDs to the VLAN groups, wherein at least two VLAN groups among the VLAN groups have the same VLAN ID.

Virtual local area network configuration system and method, and computer program product thereof

A network traffic monitoring method includes: collecting sampled packet data of a switch wherein the sampled packet data relates to a plurality of types of packets, selecting a first type of packets from the plurality of types of packets, controlling the switch to collect traffic data of the first type of packets, and estimating a traffic volume of each of the plurality of types of packets according to the traffic data and the sampled packet data.

Network traffic monitoring system and method thereof

A data center network system based on software-defined network (SDN) is provided. The data center network system includes a plurality of physical machines, a plurality of Ethernet switches, a plurality of OpenFlow switches connected to each other, and a central control apparatus. Each of the physical machines includes a virtual switch and at least one virtual machine. The virtual switches modify destination media access control (MAC) addresses of packets to MAC addresses of the OpenFlow switches, such that the Ethernet switches forward the packets received from the virtual switches to the corresponding OpenFlow switches according to the MAC addresses of the OpenFlow switches. The OpenFlow switches modify the destination media access control (MAC) addresses of the packets to MAC addresses of virtual machines, such that the Ethernet switches forward the packet received from the OpenFlow switches to the corresponding virtual switches.

Growing community of inventors

Hsinchu County, Taiwan

Ming-Hung Hsu