公开(公告)号：US20190190851A1

公开(公告)日：2019-06-20

申请号：US16211177

申请日：2018-12-05

Applicant: Industrial Technology Research Institute

Inventor： Ming-Hung HSU ,  Tzi-Cker CHIUEH ,  Yu-Wei LEE ,  Yi-An CHEN

IPC: H04L12/947 ,  H04L12/24 ,  H04L29/06 ,  H04L12/46 ,  H04L12/933 ,  H04L12/26

CPC classification number: H04L49/25 ,  H04L12/4641 ,  H04L41/0213 ,  H04L43/028 ,  H04L49/15 ,  H04L69/22

Abstract: 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.