公开(公告)号：US08549120B2

公开(公告)日：2013-10-01

申请号：US12824372

申请日：2010-06-28

申请人： Arvind Bhaskar Bhat ,  Ramkumar Sankar

发明人： Arvind Bhaskar Bhat ,  Ramkumar Sankar

IPC分类号： G06F15/177

CPC分类号： H04W48/17 ,  H04L45/586 ,  H04W4/02 ,  H04W8/26 ,  H04W80/02

摘要： A method for location based address assignment for the distribution of traffic is provided that includes receiving a request for service from a host. A location of the host within a network environment is identified. A selected one of a plurality of gateway devices is assigned to service the host based on the location of the host within the network environment and the location of the selected one of the gateway devices within the network environment. A forwarding address associated with the selected one of the gateway devices is transmitted to the host for subsequent use by the host in forwarding network traffic.

摘要翻译： 提供了一种用于分发流量的基于位置的地址分配的方法，包括从主机接收服务请求。 识别主机在网络环境中的位置。 分配多个网关设备中的所选择的一个以基于网络环境内的主机的位置和网络环境中所选择的一个网关设备的位置为主机服务。 与所选择的一个网关设备相关联的转发地址被发送到主机以供主机在转发网络业务中后续使用。

公开(公告)号：US20130094357A1

公开(公告)日：2013-04-18

申请号：US13331626

申请日：2011-12-20

申请人： Ramkumar SANKAR ,  Naveen Pethandlahally Narayan GOWDA

发明人： Ramkumar SANKAR ,  Naveen Pethandlahally Narayan GOWDA

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04L45/586 ,  H04L45/70 ,  H04L47/125 ,  H04L49/354 ,  H04L49/356 ,  H04L49/70

摘要： Techniques are disclosed for providing n-way gateway load-balancing in a fabric path switching Systems (FSS), such as a layer 2 multipath (L2MP) network in a large data center. An access switch in a L2MP network may learn an emulated switch IDs through FHRP “hello” messages sent by an “active” gateway router for each FHRP group. Further, the access switch may learn which links an emulated switch is reachable over by evaluating link state messages (e.g., IS-IS messages) sent by the gateway routers used to construct the emulated switch. Doing so allows the access switch to learn both the ID of an emulated switch and a set of links over which the emulated switch may be reached, thereby allowing the access switch to load balance traffic to the emulated switch.

摘要翻译： 公开了用于在诸如大型数据中心中的第2层多路径（L2MP）网络的结构路径交换系统（FSS）中提供n路网关负载平衡的技术。 L2MP网络中的接入交换机可以通过每个FHRP组的“活动”网关路由器发送的FHRP“hello”消息来学习仿真交换机ID。 此外，访问交换机可以通过评估由用于构建仿真开关的网关路由器发送的链路状态消息（例如，IS-IS消息）来了解模拟交换机可以到达哪个链路。 这样做允许接入交换机学习仿真交换机的ID和可以到达仿真交换机的一组链路，从而允许接入交换机将流量负载平衡到仿真交换机。

公开(公告)号：US06850492B2

公开(公告)日：2005-02-01

申请号：US10302709

申请日：2002-11-22

申请人： Vijay K. Chander ,  Atul B. Mahamuni ,  Ramkumar Sankar ,  Sreeram Iyer ,  Henry Hong-Yi Tzeng

发明人： Vijay K. Chander ,  Atul B. Mahamuni ,  Ramkumar Sankar ,  Sreeram Iyer ,  Henry Hong-Yi Tzeng

IPC分类号： H04J3/14 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L45/583 ,  H04L45/00 ,  H04L45/58 ,  H04L45/60 ,  Y10S707/99938

摘要： A system and method is directed to updating a route table in a distributed routing platform, thereby enabling multiple routing protocols to be executed on different routing modules. A slave route distributor on one routing module is configured to receive a route from a local route table and flow manager. The slave route distributor communicates the route to a master route distributor on another routing module by way of an inter process communications protocol. The master route distributor provides the route to its local route table and flow manager, where a determination is made whether the route is a best route. If the route is a best route, the master route distributor updates its external routing table. The master route distributor also distributes the route to another slave route distributor on yet another routing module, where the route enables an update to a remote routing protocol, and routing table.

摘要翻译： 系统和方法旨在更新分布式路由平台中的路由表，从而使得能够在不同的路由模块上执行多个路由协议。 一个路由模块上的从属路由分配器被配置为从本地路由表和流管理器接收路由。 从路由分配器通过进程间通信协议将路由传递到另一路由模块上的主路由分发器。 主路由分配器提供到其本地路由表和流管理器的路由，其中​​确定路由是否是最佳路由。 如果路由是最佳路由，则主路由分发器更新其外部路由表。 主路由分配器还将路由分配到另一路由模块上的另一个从属路由分发器，其中该路由能够更新远程路由协议和路由表。

公开(公告)号：US20130343386A1

公开(公告)日：2013-12-26

申请号：US13529219

申请日：2012-06-21

申请人： Ramkumar Sankar ,  Shivaprasath Sundarrajan

发明人： Ramkumar Sankar ,  Shivaprasath Sundarrajan

IPC分类号： H04L12/56

CPC分类号： H04L47/125 ,  H04L47/41 ,  H04L67/1004 ,  Y02D50/30

摘要： In an implementation, a packet is received from a network device. A group identifier is retrieved from the received packet. A plurality of layer-2 switch identifiers that are associated with the retrieved group identifier is determined. A switch identifier is selected from the plurality of layer-2 switch identifiers. The received packet is forwarded to a layer-2 switch identified by the selected switch identifier.

摘要翻译： 在实现中，从网络设备接收分组。 从接收的分组中检索组标识符。 确定与检索到的组标识符相关联的多个第二层交换机标识符。 从多个第二层交换机标识符中选择一个交换机标识符。 所接收的分组被转发到由所选交换机标识符标识的二层交换机。

公开(公告)号：US20110320577A1

公开(公告)日：2011-12-29

申请号：US12824372

申请日：2010-06-28

申请人： Arvind Bhaskar Bhat ,  Ramkumar Sankar

发明人： Arvind Bhaskar Bhat ,  Ramkumar Sankar

IPC分类号： G06F15/177

CPC分类号： H04W48/17 ,  H04L45/586 ,  H04W4/02 ,  H04W8/26 ,  H04W80/02

摘要： A method for location based address assignment for the distribution of traffic is provided that includes receiving a request for service from a host. A location of the host within a network environment is identified. A selected one of a plurality of gateway devices is assigned to service the host based on the location of the host within the network environment and the location of the selected one of the gateway devices within the network environment. A forwarding address associated with the selected one of the gateway devices is transmitted to the host for subsequent use by the host in forwarding network traffic.

摘要翻译： 提供了一种用于分发流量的基于位置的地址分配的方法，包括从主机接收服务请求。 识别主机在网络环境中的位置。 分配多个网关设备中的所选择的一个以基于网络环境内的主机的位置和网络环境中所选择的一个网关设备的位置为主机服务。 与所选择的一个网关设备相关联的转发地址被发送到主机以供主机在转发网络业务中后续使用。

公开(公告)号：US09455948B2

公开(公告)日：2016-09-27

申请号：US13571794

申请日：2012-08-10

申请人： Ramkumar Sankar ,  Varagur Chandrasekaran ,  Murali Basavaiah

发明人： Ramkumar Sankar ,  Varagur Chandrasekaran ,  Murali Basavaiah

IPC分类号： H04L12/28 ,  H04L29/12

CPC分类号： H04L61/103

摘要： In one embodiment, the processing by a packet switching device of a received network-to-link-layer address resolution request message (e.g., Address Resolution Protocol [ARP] Request message, Neighbor Discovery Protocol [NDP] Neighbor Solicitation message) is dependent upon whether or not its target IP address corresponds to a network gateway packet switching device. When the target IP address of a received ARP Request/NDP Neighbor Solicitation message corresponds to a network gateway, then the packet switching device responds effectively on behalf of the network gateway, rather than forwarding the message to the network gateway. When the target IP address of a received ARP Request/NDP Neighbor Solicitation message does not correspond to a network gateway and the Media Access Control (MAC) address corresponding to the target IP address is known, then the packet switching device transforms then sends the broadcast or multicast frame into a unicast frame.

摘要翻译： 在一个实施例中，分组交换设备对接收到的网络到链路层地址解析请求消息（例如，地址解析协议[ARP]请求消息，邻居发现协议[NDP]邻居请求消息）的处理）取决于 其目标IP地址是否对应于网络网关分组交换设备。 当接收的ARP请求/ NDP邻居请求消息的目标IP地址对应于网络网关时，分组交换设备代表网关进行有效响应，而不是将消息转发到网络网关。 当接收的ARP请求/ NDP邻居请求消息的目标IP地址与网络网关不对应，并且与目标IP地址对应的媒体访问控制（MAC）地址是已知的时候，分组交换设备转换然后发送广播 或多播帧转换为单播帧。

公开(公告)号：US08717888B2

公开(公告)日：2014-05-06

申请号：US13331626

申请日：2011-12-20

申请人： Ramkumar Sankar ,  Naveen Pethandlahally Narayan Gowda

发明人： Ramkumar Sankar ,  Naveen Pethandlahally Narayan Gowda

IPC分类号： H04L12/28

CPC分类号： H04L45/586 ,  H04L45/70 ,  H04L47/125 ,  H04L49/354 ,  H04L49/356 ,  H04L49/70

摘要： Techniques are disclosed for providing n-way gateway load-balancing in a fabric path switching Systems (FSS), such as a layer 2 multipath (L2MP) network in a large data center. An access switch in a L2MP network may learn an emulated switch IDs through FHRP “hello” messages sent by an “active” gateway router for each FHRP group. Further, the access switch may learn which links an emulated switch is reachable over by evaluating link state messages (e.g., IS-IS messages) sent by the gateway routers used to construct the emulated switch. Doing so allows the access switch to learn both the ID of an emulated switch and a set of links over which the emulated switch may be reached, thereby allowing the access switch to load balance traffic to the emulated switch.

摘要翻译： 公开了用于在诸如大型数据中心中的第2层多路径（L2MP）网络的结构路径交换系统（FSS）中提供n路网关负载平衡的技术。 L2MP网络中的接入交换机可以通过每个FHRP组的“活动”网关路由器发送的FHRP“hello”消息来学习仿真交换机ID。 此外，访问交换机可以通过评估由用于构建仿真开关的网关路由器发送的链路状态消息（例如，IS-IS消息）来了解模拟交换机可以到达哪个链路。 这样做允许接入交换机学习仿真交换机的ID和可以到达仿真交换机的一组链路，从而允许接入交换机将流量负载平衡到仿真交换机。

公开(公告)号：US20140003426A1

公开(公告)日：2014-01-02

申请号：US13571794

申请日：2012-08-10

申请人： Ramkumar Sankar ,  Varagur Chandrasekaran ,  Murali Basavaiah

发明人： Ramkumar Sankar ,  Varagur Chandrasekaran ,  Murali Basavaiah

IPC分类号： H04L12/56

CPC分类号： H04L61/103

摘要： In one embodiment, the processing by a packet switching device of a received network-to-link-layer address resolution request message (e.g., Address Resolution Protocol [ARP] Request message, Neighbor Discovery Protocol [NDP] Neighbor Solicitation message) is dependent upon whether or not its target IP address corresponds to a network gateway packet switching device. When the target IP address of a received ARP Request/NDP Neighbor Solicitation message corresponds to a network gateway, then the packet switching device responds effectively on behalf of the network gateway, rather than forwarding the message to the network gateway. When the target IP address of a received ARP Request/NDP Neighbor Solicitation message does not correspond to a network gateway and the Media Access Control (MAC) address corresponding to the target IP address is known, then the packet switching device transforms then sends the broadcast or multicast frame into a unicast frame.

摘要翻译： 在一个实施例中，分组交换设备对接收到的网络到链路层地址解析请求消息（例如，地址解析协议[ARP]请求消息，邻居发现协议[NDP]邻居请求消息）的处理）取决于 其目标IP地址是否对应于网络网关分组交换设备。 当接收的ARP请求/ NDP邻居请求消息的目标IP地址对应于网络网关时，分组交换设备代表网关进行有效响应，而不是将消息转发到网络网关。 当接收的ARP请求/ NDP邻居请求消息的目标IP地址与网络网关不对应，并且与目标IP地址对应的媒体访问控制（MAC）地址是已知的时候，分组交换设备转换然后发送广播 或多播帧转换为单播帧。

公开(公告)号：US08166187B2

公开(公告)日：2012-04-24

申请号：US12403337

申请日：2009-03-12

申请人： Naveen Pethandlahally Narayan Gowda ,  Srinivas Sastry ,  Ramkumar Sankar ,  Kiron Haltore ,  Murali Basavaiah ,  Sameer Merchant ,  Sreeram Parameswara Iyer

发明人： Naveen Pethandlahally Narayan Gowda ,  Srinivas Sastry ,  Ramkumar Sankar ,  Kiron Haltore ,  Murali Basavaiah ,  Sameer Merchant ,  Sreeram Parameswara Iyer

IPC分类号： H04L12/37

CPC分类号： H04L12/66 ,  H04L45/22 ,  H04L45/28 ,  H04L45/586

摘要： In one embodiment, a method comprises assigning, by a distributed gateway protocol circuit in a first network switching device, a shared Media Access Control (MAC) address to a shared Internet Protocol (IP) address, the shared MAC address and the shared IP address enabling connected network devices to reach a distributed IP gateway in a network; and sending, by a layer 2 forwarding circuit in the first network switching device, an instruction via a peer data link to a peer layer 2 forwarding circuit in a second network switching device in response to the distributed gateway protocol circuit claiming active control of the distributed IP gateway, the instruction enabling the second network switching device to operate as part of the distributed IP gateway based on concurrent use of the shared MAC address and the shared IP address by the first network switching device and the second network switching device.

摘要翻译： 在一个实施例中，一种方法包括通过第一网络交换设备中的分布式网关协议电路将共享媒体访问控制（MAC）地址分配给共享因特网协议（IP）地址，共享MAC地址和共享IP地址 使连接的网络设备能够到达网络中的分布式IP网关; 并且通过第二网络交换设备中的层2转发电路，响应于所述分布式网关协议电路，通过对等体数据链路发送指向第二网络交换设备中的对等体层2转发电路的指令，声明主动控制分布式 IP网关，使得第二网络交换设备能够基于由第一网络交换设备和第二网络交换设备同时使用共享MAC地址和共享IP地址而作为分布式IP网关的一部分进行操作的指令。

公开(公告)号：US20100189117A1

公开(公告)日：2010-07-29

申请号：US12403337

申请日：2009-03-12

申请人： Naveen Pethandlahally Narayan Gowda ,  Srinivas Sastry ,  Ramkumar Sankar ,  Kiron Haltore ,  Murali Basavaiah ,  Sameer Merchant ,  Sreeram Parameswara Iyer

发明人： Naveen Pethandlahally Narayan Gowda ,  Srinivas Sastry ,  Ramkumar Sankar ,  Kiron Haltore ,  Murali Basavaiah ,  Sameer Merchant ,  Sreeram Parameswara Iyer

IPC分类号： H04L12/56

CPC分类号： H04L12/66 ,  H04L45/22 ,  H04L45/28 ,  H04L45/586

摘要： In one embodiment, a method comprises assigning, by a distributed gateway protocol circuit in a first network switching device, a shared Media Access Control (MAC) address to a shared Internet Protocol (IP) address, the shared MAC address and the shared IP address enabling connected network devices to reach a distributed IP gateway in a network; and sending, by a layer 2 forwarding circuit in the first network switching device, an instruction via a peer data link to a peer layer 2 forwarding circuit in a second network switching device in response to the distributed gateway protocol circuit claiming active control of the distributed IP gateway, the instruction enabling the second network switching device to operate as part of the distributed IP gateway based on concurrent use of the shared MAC address and the shared IP address by the first network switching device and the second network switching device.

摘要翻译： 在一个实施例中，一种方法包括通过第一网络交换设备中的分布式网关协议电路将共享媒体访问控制（MAC）地址分配给共享因特网协议（IP）地址，共享MAC地址和共享IP地址 使连接的网络设备能够到达网络中的分布式IP网关; 并且通过第二网络交换设备中的层2转发电路，响应于所述分布式网关协议电路，通过对等体数据链路发送指向第二网络交换设备中的对等体层2转发电路的指令，声明主动控制分布式 IP网关，使得第二网络交换设备能够基于由第一网络交换设备和第二网络交换设备同时使用共享MAC地址和共享IP地址而作为分布式IP网关的一部分进行操作的指令。