公开(公告)号：US08559314B2

公开(公告)日：2013-10-15

申请号：US13208251

申请日：2011-08-11

申请人： Kiran Yedavalli ,  Neda Beheshti-Zavareh ,  Ying Zhang

发明人： Kiran Yedavalli ,  Neda Beheshti-Zavareh ,  Ying Zhang

IPC分类号： H04L1/00

CPC分类号： H04L45/12 ,  H04L45/025 ,  H04L45/026 ,  H04L45/64

摘要： A method is implemented in a network element that functions as one of a plurality of controllers for one of a plurality of areas of a split architecture network. The controller provides a control plane for the area of the split architecture network where the controller is remote from a plurality of switches providing a data plane for the area of split architecture network. The controller facilitates optimized routing across the plurality of areas of the split architecture network by providing limited intra-area link cost data to other controllers of other areas of the split architecture network and to traditional routers of a network including the split architecture network. The limited intra-area link cost data provides costs of each possible shortest path traversal of the area of the controller without providing all internal link cost data.

公开(公告)号：US20130039214A1

公开(公告)日：2013-02-14

申请号：US13208251

申请日：2011-08-11

申请人： Kiran Yedavalli ,  Neda Beheshti-Zavareh ,  Ying Zhang

发明人： Kiran Yedavalli ,  Neda Beheshti-Zavareh ,  Ying Zhang

IPC分类号： H04L12/28

CPC分类号： H04L45/12 ,  H04L45/025 ,  H04L45/026 ,  H04L45/64

摘要： A method is implemented in a network element that functions as one of a plurality of controllers for one of a plurality of areas of a split architecture network. The controller provides a control plane for the area of the split architecture network where the controller is remote from a plurality of switches providing a data plane for the area of split architecture network. The controller facilitates optimized routing across the plurality of areas of the split architecture network by providing limited intra-area link cost data to other controllers of other areas of the split architecture network and to traditional routers of a network including the split architecture network. The limited intra-area link cost data provides costs of each possible shortest path traversal of the area of the controller without providing all internal link cost data.

摘要翻译： 一种在分离架构网络的多个区域中的一个区域的多个控制器之一中起作用的网络元件中实现一种方法。 控制器为分离式架构网络的区域提供控制平面，其中控制器远离多个交换机，为分割架构网络的区域提供数据平面。 控制器通过向分裂架构网络的其他区域的其他控制器和包括分离架构网络的网络的传统路由器提供有限的区域内链路成本数据来促进跨分离架构网络的多个区域的优化路由。 有限的区域内链路成本数据提供控制器区域中每个可能的最短路径遍历的成本，而不提供所有内部链路成本数据。

公开(公告)号：US20130034104A1

公开(公告)日：2013-02-07

申请号：US13196717

申请日：2011-08-02

申请人： Kiran Yedavalli ,  Ramesh Mishra

发明人： Kiran Yedavalli ,  Ramesh Mishra

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04L41/0826 ,  H04L12/1877 ,  H04L12/1886 ,  H04L12/4641 ,  H04L41/0803 ,  H04L41/12 ,  H04L45/32 ,  H04L45/38 ,  H04L49/15 ,  H04L49/201 ,  H04L49/25 ,  H04L49/354 ,  H04L61/103

摘要： A method and system is implemented in a network node that functions as a controller for a domain in a split architecture network. The domain comprises a plurality of flow switches, where the plurality of flow switches implement a data plane for the split architecture network and the controller implements a control plane for the split architecture network that is remote from the data plane. The method and system configure the plurality of flow switches to efficiently handle each type of broadcast packet in the domain of the split architecture network without flooding the domain with the broadcast packets to thereby reduce a number of broadcast packets forwarded within the domain.

摘要翻译： 在用作分离架构网络中的域的控制器的网络节点中实现方法和系统。 该域包括多个流量开关，其中多个流量开关实现分裂架构网络的数据平面，并且控制器实现远离数据平面的分离架构网络的控制平面。 该方法和系统配置多个流量交换机，以有效地处理分离式架构网络域中的每种类型的广播报文，而不用广播报文洪泛域，从而减少域内转发的广播报文数量。

公开(公告)号：US08971334B2

公开(公告)日：2015-03-03

申请号：US13196717

申请日：2011-08-02

申请人： Kiran Yedavalli ,  Ramesh Mishra

发明人： Kiran Yedavalli ,  Ramesh Mishra

IPC分类号： H04L12/28 ,  H04L12/24 ,  H04L12/721 ,  H04L12/18

CPC分类号： H04L41/0826 ,  H04L12/1877 ,  H04L12/1886 ,  H04L12/4641 ,  H04L41/0803 ,  H04L41/12 ,  H04L45/32 ,  H04L45/38 ,  H04L49/15 ,  H04L49/201 ,  H04L49/25 ,  H04L49/354 ,  H04L61/103

摘要： A method and system is implemented in a network node that functions as a controller for a domain in a split architecture network. The domain comprises a plurality of flow switches, where the plurality of flow switches implement a data plane for the split architecture network and the controller implements a control plane for the split architecture network that is remote from the data plane. The method and system configure the plurality of flow switches to efficiently handle each type of broadcast packet in the domain of the split architecture network without flooding the domain with the broadcast packets to thereby reduce a number of broadcast packets forwarded within the domain.

摘要翻译： 在用作分离架构网络中的域的控制器的网络节点中实现方法和系统。 该域包括多个流量开关，其中多个流量开关实现分裂架构网络的数据平面，并且控制器实现远离数据平面的分离架构网络的控制平面。 该方法和系统配置多个流量交换机，以有效地处理分离式架构网络域中的每种类型的广播报文，而不用广播报文洪泛域，从而减少域内转发的广播报文数量。

公开(公告)号：US08644149B2

公开(公告)日：2014-02-04

申请号：US13302928

申请日：2011-11-22

申请人： Kiran Yedavalli

发明人： Kiran Yedavalli

IPC分类号： H04L12/26

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

摘要： Method and apparatus for reducing forwarding table sizes in flow switches in a flow-based, split-architecture network is described. In an embodiment, a set of flow switches along a flow path is identified to form a switch pool. The forwarding table of only one of the flow switches in the switch pool is configured to have a flow entry that is associated with a particular flow. The flow entry includes a set of match fields for identifying packets belonging to that particular flow, and a set of actions to be performed on the packets belonging to that particular flow.

摘要翻译： 描述了用于在基于流的分裂架构网络中减少流交换机中的转发表大小的方法和装置。 在一个实施例中，沿流动路径的一组流量开关被识别以形成开关池。 交换机池中只有一个流交换机的转发表被配置为具有与特定流相关联的流条目。 流条目包括用于标识属于该特定流的分组的一组匹配字段以及要对属于该特定流的分组执行的一组动作。