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    • 88. 发明申请
    • Network system, control method thereof and controller
    • 网络系统及其控制方法和控制器
    • US20120075991A1
    • 2012-03-29
    • US13200749
    • 2011-09-30
    • Takahide SugitaHiroshi Ueno
    • Takahide SugitaHiroshi Ueno
    • H04L12/26
    • H04L12/24G06F9/505H04L41/00H04L45/24H04L49/356H04L49/70
    • A network system includes a server which accommodates a plurality of tenants, at least one network appliance which has a resource shared by the plurality of tenants, a plurality of switches arranged between the at least one network appliance and a network; and a controller which controls the switches. Each switch has a flow table indicating an association of an input source with a transfer destination of packets for each flow, and transfers packets received from the input source to the transfer destination by referring to the flow table. The controller includes an assignment control block which dynamically assigns each of a plurality of tenants to any of the at least one network appliance; a route design block which designs a flow route for each of the tenants; and a switch setting block which sets the flow table for each of switches along the designed route.
    • 网络系统包括容纳多个租户的服务器,至少一个具有由多个租户共享的资源的网络设备,布置在所述至少一个网络设备和网络之间的多个交换机; 以及控制开关的控制器。 每个交换机具有指示输入源与每个流的分组的传送目的地的关联的流程表,并且通过参考流表将从输入源接收的分组传送到传送目的地。 控制器包括分配控制块,其将多个租户中的每一个动态地分配给所述至少一个网络设备中的任何一个; 为每个租户设计流路的路线设计块; 以及设置沿设计路线的各交换机的流表的开关设定块。
    • 89. 发明申请
    • Switch network system, controller, and control method
    • 切换网络系统,控制器和控制方式
    • US20120020361A1
    • 2012-01-26
    • US13200757
    • 2011-09-30
    • Hiroshi Ueno
    • Hiroshi Ueno
    • H04L12/56
    • H04L49/50H04L47/127
    • A controller has an entry control block and a flow table setting block. In a case where an action of a target entry in a flow table is to be changed to “forwarding of a reception packet to the controller”, the entry control block forecasts a load when packets matching the target entry are forwarded to the controller. If the load exceeds a permissible value, the entry control block repeats entry division processing until the load becomes within the permissible value. In the entry division processing, the entry control block divides the target entry into a plurality of post-division entries, divides the match condition of the target entry into a plurality of conditions, and sets respective match conditions of the plurality of post-division entries to the plurality of conditions. The flow table setting block instructs a switch to set the plurality of post-division entries in the flow table.
    • 控制器具有入口控制块和流表设置块。 在将流表中的目标条目的动作改为“将控制器转发到接收包”的情况下,当与目标条目匹配的包转发给控制器时,条目控制块预测负载。 如果负载超过允许值,则入口控制块重复进入分割处理,直到负载变为允许值。 在入口分割处理中,入口控制块将目标条目划分为多个后分割条目,将目标条目的匹配条件划分为多个条件,并且设定多个分割后条目的各个匹配条件 到多个条件。 流表设置块指示切换器设置流表中的多个后划分条目。