公开(公告)号：US09419878B2

公开(公告)日：2016-08-16

申请号：US14336182

申请日：2014-07-21

Applicant: Industrial Technology Research Institute

Inventor： Tai-Hua Hsiao ,  Wen-Hung Chang

IPC: H04L12/16 ,  H04L12/26 ,  H04L12/721

CPC classification number: H04L43/0864 ,  H04L43/10 ,  H04L45/36 ,  H04L45/38 ,  H04L45/64

Abstract: A network controller for delay measurement in SDN and related delay measurement system and delay measurement method are provided. A probe packet is used to record the transmission of the probe packet between the network controller and network switches, to calculate a transport delay time between the network switches and hop delay time between the network switches, to obtain the delay of each link in the transmission path, which helps in finding out a critical hop in the SDN transmission path. Through the delay measurement mechanism according to the present disclosure, the critical hop will become a reference based on which a network manager adjusts a network framework, or a basis taken by an SDN control system to select a path.

Abstract translation: 提供了一种用于SDN中延迟测量的网络控制器及相关的延迟测量系统和延迟测量方法。 探测包用于记录网络控制器和网络交换机之间的探测包的传输，计算网络交换机之间的传输延迟时间和网络交换机之间的跳时延迟时间，以获得传输中每个链路的延迟 路径，有助于找出SDN传输路径中的关键跳。 通过根据本公开的延迟测量机制，关键跳变将成为网络管理器调整网络框架或由SDN控制系统选择路径所采取的基准的参考。

公开(公告)号：US20150163114A1

公开(公告)日：2015-06-11

申请号：US14336182

申请日：2014-07-21

Applicant: Industrial Technology Research Institute

Inventor： Tai-Hua Hsiao ,  Wen-Hung Chang

IPC: H04L12/26 ,  H04L12/721

CPC classification number: H04L43/0864 ,  H04L43/10 ,  H04L45/36 ,  H04L45/38 ,  H04L45/64

Abstract: A network controller for delay measurement in SDN and related delay measurement system and delay measurement method are provided. A probe packet is used to record the transmission of the probe packet between the network controller and network switches, to calculate a transport delay time between the network switches and hop delay time between the network switches, to obtain the delay of each link in the transmission path, which helps in finding out a critical hop in the SDN transmission path. Through the delay measurement mechanism according to the present disclosure, the critical hop will become a reference based on which a network manager adjusts a network framework, or a basis taken by an SDN control system to select a path.

Abstract translation: 提供了一种用于SDN中延迟测量的网络控制器及相关的延迟测量系统和延迟测量方法。 探测包用于记录网络控制器和网络交换机之间的探测包的传输，计算网络交换机之间的传输延迟时间和网络交换机之间的跳时延迟时间，以获得传输中每个链路的延迟 路径，有助于找出SDN传输路径中的关键跳。 通过根据本公开的延迟测量机制，关键跳变将成为网络管理器调整网络框架或由SDN控制系统选择路径所采取的基准的参考。