公开(公告)号：US20110026527A1

公开(公告)日：2011-02-03

申请号：US12902703

申请日：2010-10-12

申请人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

发明人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

IPC分类号： H04L12/56

CPC分类号： H04L12/4666 ,  H04L49/354

摘要： A data center includes a blade server rack with a switch device in communication with a plurality of servers. To process a frame, the switch device determines, from content in a frame header by the switch device, a port through which to forward the frame to a server. The switch device inserts a value into a particular field, for example, a VLAN (virtual Local Area Network) tag, in the frame header before forwarding the frame. The server performs a specific action related to processing the frame based on the value inserted by the switch device into the particular field in the frame header. The server can modify the value in the particular field of the frame header before returning the frame to the switch device, with the switch device performing a specific action based on the value in the particular field of the frame header as modified by the server.

摘要翻译： 数据中心包括具有与多个服务器通信的交换设备的刀片服务器机架。 为了处理帧，交换设备通过交换设备从帧头中的内容确定将帧转发到服务器的端口。 在转发帧之前，交换设备将值插入到特定字段中，例如，帧头中的VLAN（虚拟局域网）标签。 服务器基于由交换设备插入的值到帧头中的特定字段来执行与处理该帧相关的特定动作。 服务器可以在将帧返回到交换机设备之前修改帧头的特定字段中的值，其中交换设备基于由服务器修改的帧头部的特定字段中的值来执行特定动作。

公开(公告)号：US20110026403A1

公开(公告)日：2011-02-03

申请号：US12900579

申请日：2010-10-08

申请人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

发明人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

IPC分类号： H04J1/16 ,  H04L12/56

CPC分类号： H04L67/2895 ,  H04L67/1002 ,  H04L67/1023

摘要： A switch device includes a packet-forwarding table for providing traffic management across servers in a server group. Each table entry maps a hash value to a server in the server group. A hash value is computed from data in one or more fields in the header of a received packet. The computed hash value is used as an index into the packet-forwarding table to access a table entry and to identify from the table entry the server in the server group to which the table entry maps the computed hash value. The switch device forwards the packet to the identified server. Implementing traffic management decisions in hardware enables packet switching at the line rate of the switch ports. In addition, the hardware-based traffic management performed by the switch device eliminates session tables and the memory to store them, enabling the switch device to handle an unlimited number of client connections.

摘要翻译： 交换机设备包括用于在服务器组中的服务器之间提供流量管理的分组转发表。 每个表项将哈希值映射到服务器组中的服务器。 从接收到的数据包头中的一个或多个字段中的数据计算哈希值。 所计算的散列值被用作分组转发表中的索引以访问表条目，并且从表条目中识别服务器组中的服务器组中的服务器组，该表项对应映射计算的散列值。 交换机设备将数据包转发到已识别的服务器。 在硬件中实现流量管理决策可以以交换机端口的线路速率进行数据包交换。 此外，由交换机设备执行的基于硬件的流量管理消除了会话表和存储器以存储它们，使交换设备能够处理无限数量的客户端连接。

公开(公告)号：US09667442B2

公开(公告)日：2017-05-30

申请号：US12902703

申请日：2010-10-12

申请人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

发明人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

IPC分类号： H04L12/46 ,  H04L12/931

CPC分类号： H04L12/4666 ,  H04L49/354

摘要： A data center includes a blade server rack with a switch device in communication with a plurality of servers. To process a frame, the switch device determines, from content in a frame header by the switch device, a port through which to forward the frame to a server. The switch device inserts a value into a particular field, for example, a VLAN (virtual Local Area Network) tag, in the frame header before forwarding the frame. The server performs a specific action related to processing the frame based on the value inserted by the switch device into the particular field in the frame header. The server can modify the value in the particular field of the frame header before returning the frame to the switch device, with the switch device performing a specific action based on the value in the particular field of the frame header as modified by the server.

公开(公告)号：US08867341B2

公开(公告)日：2014-10-21

申请号：US12900579

申请日：2010-10-08

申请人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

发明人： Bill Shao ,  Cynthia Ann Gabriel ,  Tienwei Chao

IPC分类号： H04L12/26 ,  H04L29/08

CPC分类号： H04L67/2895 ,  H04L67/1002 ,  H04L67/1023

摘要： A switch device includes a packet-forwarding table for providing traffic management across servers in a server group. Each table entry maps a hash value to a server in the server group. A hash value is computed from data in one or more fields in the header of a received packet. The computed hash value is used as an index into the packet-forwarding table to access a table entry and to identify from the table entry the server in the server group to which the table entry maps the computed hash value. The switch device forwards the packet to the identified server. Implementing traffic management decisions in hardware enables packet switching at the line rate of the switch ports. In addition, the hardware-based traffic management performed by the switch device eliminates session tables and the memory to store them, enabling the switch device to handle an unlimited number of client connections.

摘要翻译： 交换机设备包括用于在服务器组中的服务器之间提供流量管理的分组转发表。 每个表项将哈希值映射到服务器组中的服务器。 从接收到的数据包头中的一个或多个字段中的数据计算哈希值。 所计算的散列值被用作分组转发表中的索引以访问表条目，并且从表条目中识别服务器组中的服务器组中的服务器组，该表项对应映射计算的散列值。 交换机设备将数据包转发到已识别的服务器。 在硬件中实现流量管理决策可以以交换机端口的线路速率进行数据包交换。 此外，由交换机设备执行的基于硬件的流量管理消除了会话表和存储器以存储它们，使交换设备能够处理无限数量的客户端连接。

公开(公告)号：US08553537B2

公开(公告)日：2013-10-08

申请号：US12741225

申请日：2008-11-07

申请人： Tienwei Chao ,  Bill Shao

发明人： Tienwei Chao ,  Bill Shao

IPC分类号： G06F11/00

CPC分类号： H04L12/66

摘要： A switch device includes a packet forwarding table for providing load balancing across servers in a server group. Each table entry maps a hash value to a server in the server group. A hash value can be computed from the destination MAC address, destination IP address, and destination service port in the header of a received packet. The packet forwarding table is searched to find an entry with a hash value that matches the computed hash value and to identify the server to which the matching hash value maps. The switch device forwards the packet to the identified server. Implementing load-balancing decisions in hardware enables packet switching at the line rate of the switch ports. In addition, the hardware-based load balancing performed by the switch device eliminates session tables and the memory to store them, enabling the switch device to handle an unlimited number of client connections.

摘要翻译： 交换机设备包括用于在服务器组中的服务器之间提供负载平衡的分组转发表。 每个表项将哈希值映射到服务器组中的服务器。 可以从接收到的报文头中的目的MAC地址，目的IP地址和目的业务端口计算哈希值。 搜索分组转发表以找到具有与计算的哈希值匹配的哈希值的条目，并且识别匹配散列值映射到的服务器。 交换机设备将数据包转发到已识别的服务器。 在硬件中实现负载均衡决定可以以交换机端口的线路速率进行数据包交换。 此外，由交换机设备执行的基于硬件的负载平衡消除了会话表和存储器，从而使交换设备能够处理无限数量的客户端连接。

公开(公告)号：US20100265824A1

公开(公告)日：2010-10-21

申请号：US12741225

申请日：2008-11-07

申请人： Tienwei Chao ,  Bill Shao

发明人： Tienwei Chao ,  Bill Shao

IPC分类号： H04L12/24

CPC分类号： H04L12/66

摘要： A switch device includes a packet forwarding table for providing load balancing across servers in a server group. Each table entry maps a hash value to a server in the server group. A hash value can be computed from the destination MAC address, destination IP address, and destination service port in the header of a received packet. The packet forwarding table is searched to find an entry with a hash value that matches the computed hash value and to identify the server to which the matching hash value maps. The switch device forwards the packet to the identified server. Implementing load-balancing decisions in hardware enables packet switching at the line rate of the switch ports. In addition, the hardware-based load balancing performed by the switch device eliminates session tables and the memory to store them, enabling the switch device to handle an unlimited number of client connections.

摘要翻译： 交换机设备包括用于在服务器组中的服务器之间提供负载平衡的分组转发表。 每个表项将哈希值映射到服务器组中的服务器。 可以从接收到的报文头中的目的MAC地址，目的IP地址和目的业务端口计算哈希值。 搜索分组转发表以找到具有与计算的哈希值匹配的哈希值的条目，并且识别匹配散列值映射到的服务器。 交换机设备将数据包转发到已识别的服务器。 在硬件中实现负载均衡决定可以以交换机端口的线路速率进行数据包交换。 此外，由交换机设备执行的基于硬件的负载平衡消除了会话表和存储器，从而使交换设备能够处理无限数量的客户端连接。

公开(公告)号：US20080205377A1

公开(公告)日：2008-08-28

申请号：US12070985

申请日：2008-02-21

申请人： Tienwei Chao ,  Vijoy Pandey ,  Wang Yao

发明人： Tienwei Chao ,  Vijoy Pandey ,  Wang Yao

IPC分类号： H04L12/28

CPC分类号： H04L69/40 ,  H04L41/0213 ,  H04L49/25 ,  H04L49/557 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1027

摘要： An improved system and method for network switching that provides the ability to automatically and seamlessly migrate policies for network hosts under certain conditions to local or remote switch ports. The improved switch automatically migrates switch policies for virtual and physical hosts from a source port to a destination port when hosts have been physically moved or replaced. For elements that have failed, the improved switch also migrates host network policies for both physical hosts and virtual machines when the old host network policy will maintain serviceability of the element when applied to the new port.

摘要翻译： 用于网络交换的改进的系统和方法，其提供在某些条件下将本地或远程交换机端口的网络主机的策略自动和无缝迁移的能力。 当主机已被物理移动或替换时，改进的交换机会自动将虚拟和物理主机的交换机策略从源端口迁移到目标端口。 对于失败的元素，当旧的主机网络策略在应用于新端口时，该元素将保持可维护性，改进的交换机也会迁移物理主机和虚拟机的主机网络策略。

公开(公告)号：US08194534B2

公开(公告)日：2012-06-05

申请号：US11816225

申请日：2006-02-28

申请人： Vijoy Pandey ,  Tienwei Chao ,  Dar-Ren Leu

发明人： Vijoy Pandey ,  Tienwei Chao ,  Dar-Ren Leu

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26

CPC分类号： H04L49/40 ,  H04L49/351 ,  H04L49/65 ,  H04L49/70

摘要： Described is a rack-switch including a rack and a plurality of blade server chassis within the rack. Each blade server chassis has a plurality of server blades in communication with at least one switch. Each switch includes a plurality of external ports. At least two of the external ports of each switch are inter-switch link (ISL) ports. The rack-switch also includes a plurality of inter-switch links. Each inter-switch link electrically connects one ISL port of one of the switches to one ISL port of another of the switches. The plurality of inter-switch links interconnects the switches such that the switches are daisy chained in a loop. The inter-switch links convey Ethernet packets representing server-to-server communications between server blades of different blade server chassis.

摘要翻译： 描述了一种在机架内包括机架和多个刀片服务器机架的机架开关。 每个刀片服务器机架具有与至少一个开关通信的多个服务器刀片。 每个开关包括多个外部端口。 每个交换机的至少两个外部端口是交换机间链路（ISL）端口。 机架式交换机还包括多个交换机间链路。 每个交换机间链路将一个交换机的一个ISL端口电连接到另一个交换机的一个ISL端口。 多个交换机间链路将交换机互连，使得开关以菊花链方式连接在一个环路中。 交换机间链路传送表示不同刀片服务器机箱的服务器刀片之间的服务器到服务器通信的以太网数据包。

公开(公告)号：US09661112B2

公开(公告)日：2017-05-23

申请号：US12070985

申请日：2008-02-21

申请人： Tienwei Chao ,  Vijoy Pandey ,  Wang Yao

发明人： Tienwei Chao ,  Vijoy Pandey ,  Wang Yao

IPC分类号： H04L12/28 ,  H04L29/14 ,  H04L12/24 ,  H04L12/947 ,  H04L12/939 ,  H04L29/08

CPC分类号： H04L69/40 ,  H04L41/0213 ,  H04L49/25 ,  H04L49/557 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1027

摘要： An improved system and method for network switching that provides the ability to automatically and seamlessly migrate policies for network hosts under certain conditions to local or remote switch ports. The improved switch automatically migrates switch policies for virtual and physical hosts from a source port to a destination port when hosts have been physically moved or replaced. For elements that have failed, the improved switch also migrates host network policies for both physical hosts and virtual machines when the old host network policy will maintain serviceability of the element when applied to the new port.

公开(公告)号：US20080275975A1

公开(公告)日：2008-11-06

申请号：US11816225

申请日：2006-02-28

申请人： Vijoy Pandey ,  Tienwei Chao ,  Dar-Ren Leu

发明人： Vijoy Pandey ,  Tienwei Chao ,  Dar-Ren Leu

IPC分类号： G06F15/173

CPC分类号： H04L49/40 ,  H04L49/351 ,  H04L49/65 ,  H04L49/70

摘要： Described is a rack-switch including a rack and a plurality of blade server chassis within the rack. Each blade server chassis has a plurality of server blades in communication with at least one switch. Each switch includes a plurality of external ports. At least two of the external ports of each switch are inter-switch link (ISL) ports. The rack-switch also includes a plurality of inter-switch links. Each inter-switch link electrically connects one ISL port of one of the switches to one ISL port of another of the switches. The plurality of inter-switch links interconnects the switches such that the switches are daisy chained in a loop. The inter-switch links convey Ethernet packets representing server-to-server communications between server blades of different blade server chassis.

摘要翻译： 描述了一种在机架内包括机架和多个刀片服务器机架的机架开关。 每个刀片服务器机架具有与至少一个开关通信的多个服务器刀片。 每个开关包括多个外部端口。 每个交换机的至少两个外部端口是交换机间链路（ISL）端口。 机架式交换机还包括多个交换机间链路。 每个交换机间链路将一个交换机的一个ISL端口电连接到另一个交换机的一个ISL端口。 多个交换机间链路将交换机互连，使得开关以菊花链方式连接在一个环路中。 交换机间链路传送表示不同刀片服务器机箱的服务器刀片之间的服务器到服务器通信的以太网数据包。