公开(公告)号：US09124517B2

公开(公告)日：2015-09-01

申请号：US13520776

申请日：2011-01-04

申请人： Minaxay Philavong ,  Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa ,  Shihomi Sato

发明人： Minaxay Philavong ,  Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa ,  Shihomi Sato

IPC分类号： H04L12/44 ,  H04L12/947 ,  H04L12/721 ,  H04L12/24 ,  H04L12/707

CPC分类号： H04L49/25 ,  H04L41/0668 ,  H04L45/22 ,  H04L45/38 ,  H04L45/66

摘要： In a network system in which a switch forwarding packets and a control server determining route information are separated, it is desired to achieve a redundancy of the control channel by an out-of-band control channel and an in-band control channel, when the switch receives a control message regarding the flow entry registration and the like based on the route information from the control server. Specifically, the separated switch and control server are connected by a control channel for sending and receiving the control message. The switch is not only connected to a control server via an out-of-band control channel by a route dedicated to the control message, but also connected to another control server via an in-band control channel by a route which is common with a normal data communication for determining the route information, to achieve a redundancy of the control channel.

摘要翻译： 在将转发分组的交换机转发分组和确定路由信息的控制服务器分离的网络系统中，期望通过带外控制信道和带内控制信道来实现控制信道的冗余，当 交换机基于来自控制服务器的路由信息​​接收关于流入口登记等的控制消息。 具体地，分离的开关和控制服务器通过用于发送和接收控制消息的控制信道连接。 交换机不仅通过带外控制信道通过专用于控制消息的路由连接到控制服务器，而且还经由带内控制信道通过与 用于确定路由信息的正常数据通信，以实现控制信道的冗余。

公开(公告)号：US09047416B2

公开(公告)日：2015-06-02

申请号：US13580620

申请日：2011-02-18

申请人： Youichi Hidaka ,  Masashi Hayashi ,  Shihomi Sato ,  Tsugio Okamoto ,  Takashi Yokota ,  Masanori Takashima ,  Koichi Tsuchiya ,  Minaxay Philavong ,  Tetsu Izawa

发明人： Youichi Hidaka ,  Masashi Hayashi ,  Shihomi Sato ,  Tsugio Okamoto ,  Takashi Yokota ,  Masanori Takashima ,  Koichi Tsuchiya ,  Minaxay Philavong ,  Tetsu Izawa

IPC分类号： G06F13/40 ,  H04L12/24 ,  H04L12/931

CPC分类号： G06F13/4022 ,  H04L41/00 ,  H04L49/35

摘要： In a switching node, high-speed and advanced service protocol processing function is achieved by utilizing an external control server without affecting performance of conventional service protocol processing. Specifically, a forwarding engine has PCI express and an LAN interface. Depending on a type of an input packet, destination of the packet is switched to the PCI express side for conventional network service and to the LAN interface side for extended network service that cooperates with the external control server. A CPU having the PCI express and the LAN interface is provided ahead of the LAN interface. The CPU performs communication of service inquiry with the external control server at high speed via the LAN interface. After response from the control server is obtained, setting of the forwarding engine is performed through the PCI express.

摘要翻译： 在交换节点中，通过利用外部控制服务器，不影响传统业务协议处理的性能，实现了高速，高级的业务协议处理功能。 具体来说，转发引擎具有PCI Express和LAN接口。 根据输入分组的类型，分组的目的地被切换到用于常规网络服务的PCI Express侧和用于与外部控制服务器协作的扩展网络服务的LAN接口侧。 具有PCI Express和LAN接口的CPU在LAN接口之前提供。 CPU通过LAN接口与外部控制服务器高速进行业务查询通信。 获得控制服务器的响应后，通过PCI express进行转发引擎的设置。

公开(公告)号：US20130077481A1

公开(公告)日：2013-03-28

申请号：US13520776

申请日：2011-01-04

申请人： Minaxay Philavong ,  Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa

发明人： Minaxay Philavong ,  Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa

IPC分类号： H04L12/56

CPC分类号： H04L49/25 ,  H04L41/0668 ,  H04L45/22 ,  H04L45/38 ,  H04L45/66

摘要： In a network system in which a switch forwarding packets and a control server determining route information are separated, it is desired to achieve a redundancy of the control channel by an out-of-band control channel and an in-band control channel, when the switch receives a control message regarding the flow entry registration and the like based on the route information from the control server. Specifically, the separated switch and control server are connected by a control channel for sending and receiving the control message. The switch is not only connected to a control server via an out-of-band control channel by a route dedicated to the control message, but also connected to another control server via an in-band control channel by a route which is common with a normal data communication for determining the route information, to achieve a redundancy of the control channel.

摘要翻译： 在将转发分组的交换机转发分组和确定路由信息的控制服务器分离的网络系统中，期望通过带外控制信道和带内控制信道来实现控制信道的冗余，当 交换机基于来自控制服务器的路由信息​​接收关于流入口登记等的控制消息。 具体地，分离的开关和控制服务器通过用于发送和接收控制消息的控制信道连接。 交换机不仅通过带外控制信道通过专用于控制消息的路由连接到控制服务器，而且还经由带内控制信道通过与 用于确定路由信息的正常数据通信，以实现控制信道的冗余。

公开(公告)号：US20130086295A1

公开(公告)日：2013-04-04

申请号：US13580620

申请日：2011-02-18

申请人： Youichi Hidaka ,  Masashi Hayashi ,  Shihomi Sato ,  Tsugio Okamoto ,  Takashi Yokota ,  Masanori Takashima ,  Koichi Tsuchiya ,  Minaxay Phila Vongh ,  Tetsu Izawa

发明人： Youichi Hidaka ,  Masashi Hayashi ,  Shihomi Sato ,  Tsugio Okamoto ,  Takashi Yokota ,  Masanori Takashima ,  Koichi Tsuchiya ,  Minaxay Phila Vongh ,  Tetsu Izawa

IPC分类号： G06F13/40

CPC分类号： G06F13/4022 ,  H04L41/00 ,  H04L49/35

摘要： In a switching node, high-speed and advanced service protocol processing function is achieved by utilizing an external control server without affecting performance of conventional service protocol processing. Specifically, a forwarding engine has PCI express and an LAN interface. Depending on a type of an input packet, destination of the packet is switched to the PCI express side for conventional network service and to the LAN interface side for extended network service that cooperates with the external control server. A CPU having the PCI express and the LAN interface is provided ahead of the LAN interface. The CPU performs communication of service inquiry with the external control server at high speed via the LAN interface. After response from the control server is obtained, setting of the forwarding engine is performed through the PCI express.

摘要翻译： 在交换节点中，通过利用外部控制服务器，不影响传统业务协议处理的性能，实现了高速，高级的业务协议处理功能。 具体来说，转发引擎具有PCI Express和LAN接口。 根据输入分组的类型，分组的目的地被切换到用于常规网络服务的PCI Express侧和用于与外部控制服务器协作的扩展网络服务的LAN接口侧。 具有PCI Express和LAN接口的CPU在LAN接口之前提供。 CPU通过LAN接口与外部控制服务器高速进行业务查询通信。 获得控制服务器的响应后，通过PCI express进行转发引擎的设置。

公开(公告)号：US20130046882A1

公开(公告)日：2013-02-21

申请号：US13520773

申请日：2011-01-04

申请人： Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa

发明人： Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa

IPC分类号： G06F15/173

CPC分类号： H04L45/42 ,  H04L45/18 ,  H04L45/38 ,  H04L45/48 ,  H04L45/54

摘要： In the case of a system where a communication device is remote-controlled from a control server, depending on timing when an entry is written into a forwarding table of the communication device from the control server, there is a possibility that a loop and discard of the traffic occur. Therefore, for registration, rewriting and deletion of the entry of the forwarding table which are performed on the communication device 102 by the control server 101; the communication device 102 verifies contents of control instructions from the control server 101; the communication device 102 holds the result of this verification; the control server 101 acquires the result of the verification; the control server 101 judges whether or not a series of controls can be executed based on the results of the verification from the plurality of communication devices 102; and then the control server 101 invokes the execution at the plurality of communication devices 102.

摘要翻译： 在从控制服务器远程控制通信装置的系统的情况下，根据从控制服务器将条目写入到通信装置的转发表中的定时，存在循环和丢弃 交通发生。 因此，用于登记，重写和删除由控制服务器101在通信设备102上执行的转发表的条目; 通信设备102从控制服务器101验证控制指令的内容; 通信装置102保持该验证的结果; 控制服务器101获取验证结果; 控制服务器101基于来自多个通信装置102的验证结果判断是否能够执行一系列控制; 然后控制服务器101调用多个通信设备102的执行。

公开(公告)号：US09432283B2

公开(公告)日：2016-08-30

申请号：US13520773

申请日：2011-01-04

申请人： Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa

发明人： Masanori Takashima ,  Youichi Hidaka ,  Tetsu Izawa

IPC分类号： G06F15/173 ,  H04L12/717 ,  H04L12/753 ,  H04L12/741

CPC分类号： H04L45/42 ,  H04L45/18 ,  H04L45/38 ,  H04L45/48 ,  H04L45/54

摘要： In the case of a system where a communication device is remote-controlled from a control server, depending on timing when an entry is written into a forwarding table of the communication device from the control server, there is a possibility that a loop and discard of the traffic occur. Therefore, for registration, rewriting and deletion of the entry of the forwarding table which are performed on the communication device 102 by the control server 101; the communication device 102 verifies contents of control instructions from the control server 101; the communication device 102 holds the result of this verification; the control server 101 acquires the result of the verification; the control server 101 judges whether or not a series of controls can be executed based on the results of the verification from the plurality of communication devices 102; and then the control server 101 invokes the execution at the plurality of communication devices 102.

摘要翻译： 在从控制服务器远程控制通信装置的系统的情况下，根据从控制服务器将条目写入到通信装置的转发表中的定时，存在循环和丢弃 交通发生。 因此，用于登记，重写和删除由控制服务器101在通信设备102上执行的转发表的条目; 通信设备102从控制服务器101验证控制指令的内容; 通信装置102保持该验证的结果; 控制服务器101获取验证结果; 控制服务器101基于来自多个通信装置102的验证结果判断是否能够执行一系列控制; 然后控制服务器101调用多个通信设备102的执行。

公开(公告)号：US09577931B2

公开(公告)日：2017-02-21

申请号：US13821344

申请日：2011-07-21

申请人： Yoji Suzuki ,  Masanori Takashima ,  Kazushi Kubota ,  Tetsu Izawa ,  Masashi Hayashi

发明人： Yoji Suzuki ,  Masanori Takashima ,  Kazushi Kubota ,  Tetsu Izawa ,  Masashi Hayashi

IPC分类号： H04L12/28 ,  H04L12/743 ,  H04L12/935 ,  H04L12/24 ,  H04L12/851 ,  H04L12/741

CPC分类号： H04L45/7457 ,  H04L41/0806 ,  H04L45/74 ,  H04L45/745 ,  H04L47/24 ,  H04L49/3009

摘要： A switch system realizes extension of the number of entries of an open flow table by using tables in a switch as existing resources. Specifically, the switch configures an open flow table by logically combining a plurality of tables, each of which defines processing to a given packet, based on a condition and a processing content defined in each table. The switch refers to the open flow table to determine the processing content to a reception packet. The switch executes the processing of the reception packet based on the determined processing content.

摘要翻译： 交换机系统通过使用交换机中的表作为现有资源来实现对开放流表的条目数量的扩展。 具体地，交换机基于每个表中定义的条件和处理内容逻辑组合多个表来构造开放流表，每个表定义对给定分组的处理。 交换机是指开放流表以确定到接收分组的处理内容。 交换机基于确定的处理内容执行接收分组的处理。

公开(公告)号：US09294400B2

公开(公告)日：2016-03-22

申请号：US13821344

申请日：2011-07-21

申请人： Yoji Suzuki ,  Masanori Takashima ,  Kazushi Kubota ,  Tetsu Izawa ,  Masashi Hayashi

发明人： Yoji Suzuki ,  Masanori Takashima ,  Kazushi Kubota ,  Tetsu Izawa ,  Masashi Hayashi

IPC分类号： H04L12/28 ,  H04L12/743 ,  H04L12/935 ,  H04L12/24 ,  H04L12/741

摘要： A switch system realizes extension of the number of entries of an open flow table by using tables in a switch as existing resources. Specifically, the switch configures an open flow table by logically combining a plurality of tables, each of which defines processing to a given packet, based on a condition and a processing content defined in each table. The switch refers to the open flow table to determine the processing content to a reception packet. The switch executes the processing of the reception packet based on the determined processing content.

公开(公告)号：US20130176888A1

公开(公告)日：2013-07-11

申请号：US13824356

申请日：2011-09-26

申请人： Kazushi Kubota ,  Masanori Takashima ,  Yoji Suzuki ,  Masashi Hayashi ,  Tetsu Izawa

发明人： Kazushi Kubota ,  Masanori Takashima ,  Yoji Suzuki ,  Masashi Hayashi ,  Tetsu Izawa

IPC分类号： H04L12/56

CPC分类号： H04L45/70 ,  H04L43/026 ,  H04L45/38 ,  H04L49/35

摘要： A switch system allows free change of a grain degree of monitoring without being conscious of a routing control. For example, a control protocol of a transmitter is used based on the open flow (OpenFlow) technique to control the monitoring function of the switch system, and the centralized control of the monitoring can be realized as the whole network and the monitoring result is reflected on the routing control. Here, the switch has a flow table for packet transfer and a flow table for monitoring. Both of the tables are searched to one packet and a multi-hit operation is performed to execute the operation of each of the entries. That is, both the tables are searched and the packet is transferred according to corresponding flow entries.

摘要翻译： 开关系统允许在不意识到路由控制的情况下自由地改变谷物监视度。 例如，基于开放流（OpenFlow）技术来使用发射机的控制协议来控制交换机系统的监控功能，可以实现对整个网络的监控集中控制，监控结果得到反映 在路由控制上。 这里，交换机具有用于分组传送的流程表和用于监视的流程表。 搜索两个表到一个分组，并执行多命中操作以执行每个条目的操作。 也就是说，两个表被搜索，并且根据相应的流条目传送分组。

公开(公告)号：US20130170495A1

公开(公告)日：2013-07-04

申请号：US13821344

申请日：2011-07-21

申请人： Yoji Suzuki ,  Masanori Takashima ,  Kazushi Kubota ,  Tetsu Izawa ,  Masashi Hayashi

发明人： Yoji Suzuki ,  Masanori Takashima ,  Kazushi Kubota ,  Tetsu Izawa ,  Masashi Hayashi

IPC分类号： H04L12/56

CPC分类号： H04L45/7457 ,  H04L41/0806 ,  H04L45/74 ,  H04L45/745 ,  H04L47/24 ,  H04L49/3009

摘要： A switch system realizes extension of the number of entries of an open flow table by using tables in a switch as existing resources. Specifically, the switch configures an open flow table by logically combining a plurality of tables, each of which defines processing to a given packet, based on a condition and a processing content defined in each table. The switch refers to the open flow table to determine the processing content to a reception packet. The switch executes the processing of the reception packet based on the determined processing content.

摘要翻译： 交换机系统通过使用交换机中的表作为现有资源来实现对开放流表的条目数量的扩展。 具体地，交换机基于每个表中定义的条件和处理内容逻辑组合多个表来构造开放流表，每个表定义对给定分组的处理。 交换机是指开放流表以确定到接收分组的处理内容。 交换机基于确定的处理内容执行接收分组的处理。