公开(公告)号：US07139926B1

公开(公告)日：2006-11-21

申请号：US10233002

申请日：2002-08-30

申请人： Praveen Madhav ,  Rama Ramakrishnan ,  Kumar Mehta ,  Apurva Mehta

发明人： Praveen Madhav ,  Rama Ramakrishnan ,  Kumar Mehta ,  Apurva Mehta

IPC分类号： G06F11/00

CPC分类号： G06F11/2035 ,  G06F9/5033 ,  G06F11/2097 ,  H04L67/1002 ,  H04L67/1034 ,  H04L67/1095 ,  H04L67/14 ,  H04L67/142 ,  H04L67/148 ,  H04L69/40

摘要： Failure protection is provided between two routers that are actively implementing load sharing using network address translation. Failure protection is achieved by generating state information at the two routers and then exchanging the state information between the two routers so that each router has a combined set of state information that can be used in the event of a failure of the other router.

摘要翻译： 在使用网络地址转换主动实现负载分担的两个路由器之间提供故障保护。 通过在两个路由器上生成状态信息，然后在两个路由器之间交换状态信息，使得每个路由器具有可以在其他路由器发生故障的情况下使用的组合状态信息来实现故障保护。

公开(公告)号：US20050018605A1

公开(公告)日：2005-01-27

申请号：US10623784

申请日：2003-07-21

申请人： Richard Foote ,  Usama Anqud ,  Venkat Manickayasagam ,  Kumar Mehta ,  Rama Ramakrishnan

发明人： Richard Foote ,  Usama Anqud ,  Venkat Manickayasagam ,  Kumar Mehta ,  Rama Ramakrishnan

IPC分类号： H04L1/00 ,  H04L12/46 ,  H04L12/56

CPC分类号： H04L12/4641 ,  H04L12/4633 ,  H04L45/00 ,  H04L45/50 ,  H04L45/502

摘要： A technique for managing network traffic is disclosed. According to the technique, a set of VLAN IDs is explicitly identified for use with a first service. The rest of the customer traffic is considered as part of a default service. Traffic that is received at a PE from a customer is examined to identify whether or not the traffic belongs to the first service. For example, the VLAN ID and incoming port of a packet is compared to the set of VLAN IDs that were allocated to the first service on the respective port. Traffic that is identified as belonging to the first service is “extracted” from the default service and forwarded on a path that is related to the first service. The remaining traffic is forwarded on a path that is related to the default service. The service extraction technique can be implemented across an MPLS domain.

摘要翻译： 公开了一种管理网络流量的技术。 根据该技术，一组VLAN ID被明确地标识以用于第一服务。 其余客户流量被视为默认服务的一部分。 检查从客户接收的PE的流量，以识别流量是否属于第一个服务。 例如，将VLAN ID和进入端口与分配给相应端口上的第一个服务的VLAN ID进行比较。 被识别为属于第一个服务的流量从默认服务中“提取”，并在与第一个服务相关的路径上转发。 剩余流量在与默认服务相关的路径上转发。 服务提取技术可以跨MPLS域实现。

公开(公告)号：US08295291B1

公开(公告)日：2012-10-23

申请号：US12643849

申请日：2009-12-21

申请人： Ramasamy Ramanathan ,  Apurva Mehta ,  Rama Ramakrishnan ,  Gopi Krishna ,  Srinivasa Chaganti ,  Krishna Sankaran ,  Jagadish Grandhi

发明人： Ramasamy Ramanathan ,  Apurva Mehta ,  Rama Ramakrishnan ,  Gopi Krishna ,  Srinivasa Chaganti ,  Krishna Sankaran ,  Jagadish Grandhi

IPC分类号： H04L12/28

CPC分类号： H04L45/32 ,  H04L45/48 ,  H04L45/66

摘要： A device includes one or more network interfaces to receive layer two (L2) communications from an L2 network having a plurality of L2 devices; and a control unit to forward the L2 communications in accordance with forwarding information defining a plurality of flooding next hops. Each of the flooding next hops stored by the control unit specifies a set of the L2 devices within the L2 network to which to forward L2 communications in accordance with a plurality of trees, where each of the trees has a different one of the plurality of L2 devices as a root node. The control unit of the device computes a corresponding one of flooding next hops for each of the trees using only a subset of the trees without computing all of the trees having all of the different L2 network devices as root nodes.

摘要翻译： 一种设备包括一个或多个网络接口，用于从具有多个L2设备的L2网络接收第二层（L2）通信; 以及控制单元，用于根据定义多个洪泛下一跳的转发信息转发L2通信。 由控制单元存储的每个洪泛下一跳都指定L2网络内的L2设备的集合，根据多个树进行L2通信，其中每个树具有多个L2中的不同的一个 设备作为根节点。 设备的控制单元仅使用树的子集计算每个树的洪泛下一跳的相应的一个，而不计算具有所有不同的L2网络设备的所有树作为根节点。

公开(公告)号：US07411904B2

公开(公告)日：2008-08-12

申请号：US10623784

申请日：2003-07-21

申请人： Richard Foote ,  Usama Anqud ,  Venkat Manickayasagam ,  Kumar Mehta ,  Rama Ramakrishnan

发明人： Richard Foote ,  Usama Anqud ,  Venkat Manickayasagam ,  Kumar Mehta ,  Rama Ramakrishnan

IPC分类号： H04L12/26 ,  H04L12/28

CPC分类号： H04L12/4641 ,  H04L12/4633 ,  H04L45/00 ,  H04L45/50 ,  H04L45/502

摘要： A technique for managing network traffic is disclosed. According to the technique, a set of VLAN IDs is explicitly identified for use with a first service. The rest of the customer traffic is considered as part of a default service. Traffic that is received at a PE from a customer is examined to identify whether or not the traffic belongs to the first service. For example, the VLAN ID and incoming port of a packet is compared to the set of VLAN IDs that were allocated to the first service on the respective port. Traffic that is identified as belonging to the first service is “extracted” from the default service and forwarded on a path that is related to the first service. The remaining traffic is forwarded on a path that is related to the default service. The service extraction technique can be implemented across an MPLS domain.

摘要翻译： 公开了一种管理网络流量的技术。 根据该技术，一组VLAN ID被明确地标识以用于第一服务。 其余客户流量被视为默认服务的一部分。 检查从客户接收的PE的流量，以识别流量是否属于第一个服务。 例如，将VLAN ID和进入端口与分配给相应端口上的第一个服务的VLAN ID进行比较。 被识别为属于第一个服务的流量从默认服务中“提取”，并在与第一个服务相关的路径上转发。 剩余流量在与默认服务相关的路径上转发。 服务提取技术可以跨MPLS域实现。