公开(公告)号：US20150131666A1

公开(公告)日：2015-05-14

申请号：US14526761

申请日：2014-10-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Saehoon KANG ,  Sunhee YANG

IPC: H04L12/741 ,  H04L12/721

CPC classification number: H04L45/745 ,  H04L45/38 ,  H04L45/64 ,  H04L45/7453

Abstract: In a software defined network, when an SDN switch receives a packet, the SDN switch calculates a flow entry index using a matching field value belonging to a matching rule that is extracted from the received packet and a flow matching mask field value representing whether a matching field belonging to a matching rule is a field that is designated as a wildcard, processes a packet that is received according to an action that is set to a flow entry that is matched to the flow entry index from a flow table.

Abstract translation: 在软件定义的网络中，当SDN交换机接收到分组时，SDN交换机使用属于从接收到的分组提取的匹配规则的匹配字段值来计算流入口索引，以及表示匹配的流匹配掩码字段值 属于匹配规则的字段是指定为通配符的字段，根据从流表中与流条目索引匹配的流条目设置的动作来处理接收的分组。

公开(公告)号：US20150071289A1

公开(公告)日：2015-03-12

申请号：US14476943

申请日：2014-09-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Soo SHIN ,  Saehoon KANG ,  Sunhee YANG

IPC: H04L12/741 ,  H04L12/947

CPC classification number: H04L45/745 ,  H04L45/42 ,  H04L49/25

Abstract: In an address resolution system in a centralized network control environment including a plurality of software defined network (SDN) switches, an address resolution protocol (ARP) controller checks whether an ARP table has a MAC address corresponding to the destination IP address of an ARP request packet when the ARP request packet is received from a source host. An SDN controller determines whether to broadcast the ARP request packet according to the existence of the MAC address corresponding to the destination IP address in the ARP table.

Abstract translation: 在包括多个软件定义网络（SDN）交换机的集中式网络控制环境中的地址解析系统中，地址解析协议（ARP）控制器检查ARP表是否具有与ARP请求的目的地IP地址对应的MAC地址 当从源主机接收到ARP请求报文时，报文将被分组。 SDN控制器根据与ARP表中的目的IP地址对应的MAC地址的存在，确定是否广播ARP请求报文。

公开(公告)号：US20140112187A1

公开(公告)日：2014-04-24

申请号：US14060714

申请日：2013-10-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Saehoon KANG ,  Sunhee YANG

IPC: H04L12/26

CPC classification number: H04L43/024 ,  H04L43/026 ,  H04L43/04

Abstract: An apparatus for extracting flow information for monitoring a network is provided. The flow extraction apparatus includes a sampling processor that samples a received packet according to a sampling rate, a flow matching processor that searches for a first flow matching rule that is matched to a first packet that is received from the sampling processor among flow matching rules that are stored at a first flow table and that updates first statistical information corresponding to the first flow matching rule according to a search result, and a controller that sets the sampling rate and a flow matching rule to be stored at the first flow table.

Abstract translation: 提供一种用于提取用于监视网络的流信息的装置。 流提取装置包括：采样处理器，其根据采样率对接收到的分组进行采样;流匹配处理器，其搜索与从采样处理器接收的第一分组匹配的第一流匹配规则，流规则中， 存储在第一流表中，并且根据搜索结果更新与第一流匹配规则相对应的第一统计信息;以及控制器，其将采样率和流匹配规则设置为存储在第一流表。

公开(公告)号：US20140112130A1

公开(公告)日：2014-04-24

申请号：US14061340

申请日：2013-10-23

Applicant: Electronics And Telecommunications Research Institute

Inventor： Sunhee YANG ,  Young Hwa Kim ,  Saehoon KANG

IPC: H04L12/851

CPC classification number: H04L47/24 ,  H04L45/302 ,  H04L49/25

Abstract: In a network including a plurality of switches, different priority levels are assigned to different services based on a frequently requested service list provided from an end system including an end host and a server, and a forwarding rule containing path information for forwarding data packets is selectively set according to the priority levels. A first forwarding rule set for a service of the first priority level is loaded to corresponding ones of the plurality of switches.

Abstract translation: 在包括多个交换机的网络中，基于从包括终端主机和服务器的终端系统提供的频繁请求的服务列表，向不同的服务分配不同的优先级，并且选择性地包含用于转发数据分组的路径信息的转发规则 根据优先级设置。 为第一优先级的服务设置的第一转发规则被加载到多个交换机中的相应的交换机。