公开(公告)号：US20070133532A1

公开(公告)日：2007-06-14

申请号：US11603932

申请日：2006-11-22

申请人： Vivek Venkatraman ,  Ajay Virginkar ,  Sanjay Khanna ,  Balaji Rajagopalan ,  David Curry

发明人： Vivek Venkatraman ,  Ajay Virginkar ,  Sanjay Khanna ,  Balaji Rajagopalan ,  David Curry

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04L12/18

摘要： A method or corresponding apparatus in an exemplary embodiment of the present invention determines how many copies of a multicast packet are to be sent, as copies, to multiple destinations based on information in the multicast packet and a group (e.g., bridge node) with which the packet is associated. The copies of the multicast packets are then generated. After generating the copies, an action to take for each copy is determined. This determination is made using the information in the multicast packet and based on the group with which the packet is associated. After the action is determined for each copy, the action is performed on each copy. Through use of an embodiment of the present invention, memory space is conserved, allowing for continued use of a device in a multicast environment of an ever growing network, such as the Internet.

摘要翻译： 本发明的示例性实施例中的方法或对应装置根据多播分组中的信息和一组（例如，桥节点）来确定多少复制将作为副本发送到多个目的地， 该数据包被关联。 然后生成多播数据包的副本。 生成副本后，确定每个副本的动作。 使用多播分组中的信息并且基于与分组相关联的组进行该确定。 在为每个副本确定操作后，将对每个副本执行操作。 通过使用本发明的实施例，保存存储器空间，允许在诸如因特网的不断增长的网络的多播环境中继续使用设备。

公开(公告)号：US07639685B2

公开(公告)日：2009-12-29

申请号：US11603932

申请日：2006-11-22

申请人： Vivek Venkatraman ,  Ajay Virginkar ,  Sanjay Khanna ,  Balaji Rajagopalan ,  David S. Curry

发明人： Vivek Venkatraman ,  Ajay Virginkar ,  Sanjay Khanna ,  Balaji Rajagopalan ,  David S. Curry

IPC分类号： H04L12/56 ,  H04J1/16

CPC分类号： H04L12/18

摘要： A method or corresponding apparatus in an exemplary embodiment of the present invention determines how many copies of a multicast packet are to be sent, as copies, to multiple destinations based on information in the multicast packet and a group (e.g., bridge node) with which the packet is associated. The copies of the multicast packets are then generated. After generating the copies, an action to take for each copy is determined. This determination is made using the information in the multicast packet and based on the group with which the packet is associated. After the action is determined for each copy, the action is performed on each copy. Through use of an embodiment of the present invention, memory space is conserved, allowing for continued use of a device in a multicast environment of an ever growing network, such as the Internet.

摘要翻译： 本发明的示例性实施例中的方法或对应装置根据多播分组中的信息和一组（例如，桥节点）来确定多少复制将作为副本发送到多个目的地， 该数据包被关联。 然后生成多播数据包的副本。 生成副本后，确定每个副本的动作。 使用多播分组中的信息并且基于与分组相关联的组来进行该确定。 在为每个副本确定操作后，将对每个副本执行操作。 通过使用本发明的实施例，保存存储器空间，允许在诸如因特网的不断增长的网络的多播环境中继续使用设备。

公开(公告)号：US07693046B2

公开(公告)日：2010-04-06

申请号：US11447693

申请日：2006-06-05

申请人： Balaji Rajagopalan ,  Man-Tung T. Hsiao ,  Vivek Venkatraman ,  Ravindra Sunkad ,  Ramkumar Krishnamoorthy

发明人： Balaji Rajagopalan ,  Man-Tung T. Hsiao ,  Vivek Venkatraman ,  Ravindra Sunkad ,  Ramkumar Krishnamoorthy

IPC分类号： H04L12/26 ,  H04L12/28

CPC分类号： H04L45/00 ,  H04L43/0817 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

摘要： A method or corresponding apparatus in an exemplary embodiment of the present invention monitors an operational status of network links and retrieves or receives the operational status. The operational status is stored (e.g., within 50 msec) on an ongoing basis. The operational status corresponds to an operational LSP from among a primary LSP and secondary LSP(s) used to service traffic via the network links to maintain network connectivity via the LSPs. The secondary LSP(s) may be either a bypass LSP or a backup LSP, where each LSP is Fast Re-route (FRR) enabled. Further, correspondence between the primary LSP, secondary LSP(s), and the network links may be tracked. In order to deliver network traffic via the operational LSP known to service traffic between the source and destination, a link identifier may be used. The link identifier is determined from the source and destination information within the network traffic.

摘要翻译： 在本发明的示例性实施例中的方法或对应的装置监视网络链路的操作状态并检索或接收操作状态。 操作状态在持续的基础上被存储（例如，在50毫秒内）。 操作状态对应于用于通过网络链路服务业务的主LSP和辅助LSP之间的操作LSP，以通过LSP维护网络连接。 辅LSP可以是旁路LSP或备用LSP，其中每个LSP都是快速重路由（FRR）。 此外，可以跟踪主LSP，辅助LSP和网络链路之间的对应关系。 为了通过已知的用于在源和目的地之间的流量服务的操作LSP传送网络流量，可以使用链路标识符。 链路标识符是根据网络流量中的源和目的地信息确定的。

公开(公告)号：US20070280242A1

公开(公告)日：2007-12-06

申请号：US11447693

申请日：2006-06-05

申请人： Balaji Rajagopalan ,  Man-Tung T. Hsiao ,  Vivek Venkatraman ,  Ravindra Sunkad ,  Ramkumar Krishnamoorthy

发明人： Balaji Rajagopalan ,  Man-Tung T. Hsiao ,  Vivek Venkatraman ,  Ravindra Sunkad ,  Ramkumar Krishnamoorthy

IPC分类号： H04L12/26 ,  H04J1/16 ,  H04L12/56

CPC分类号： H04L45/00 ,  H04L43/0817 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

摘要： A method or corresponding apparatus in an exemplary embodiment of the present invention monitors an operational status of network links and retrieves or receives the operational status. The operational status is stored (e.g., within 50 msec) on an ongoing basis. The operational status corresponds to an operational LSP from among a primary LSP and secondary LSP(s) used to service traffic via the network links to maintain network connectivity via the LSPs. The secondary LSP(s) may be either a bypass LSP or a backup LSP, where each LSP is Fast Re-route (FRR) enabled. Further, correspondence between the primary LSP, secondary LSP(s), and the network links may be tracked. In order to deliver network traffic via the operational LSP known to service traffic between the source and destination, a link identifier may be used. The link identifier is determined from the source and destination information within the network traffic.

摘要翻译： 在本发明的示例性实施例中的方法或对应的装置监视网络链路的操作状态并检索或接收操作状态。 操作状态在持续的基础上被存储（例如，在50毫秒内）。 操作状态对应于用于通过网络链路服务业务的主LSP和辅助LSP之间的操作LSP，以通过LSP维护网络连接。 辅LSP可以是旁路LSP或备用LSP，其中每个LSP都是快速重路由（FRR）。 此外，可以跟踪主LSP，辅助LSP和网络链路之间的对应关系。 为了通过已知的用于在源和目的地之间的流量服务的操作LSP传送网络流量，可以使用链路标识符。 链路标识符是根据网络流量中的源和目的地信息确定的。

公开(公告)号：US07706297B1

公开(公告)日：2010-04-27

申请号：US11437549

申请日：2006-05-19

申请人： Vivek Venkatraman

发明人： Vivek Venkatraman

IPC分类号： H04J3/14

CPC分类号： H04B17/309 ,  H04B17/23 ,  H04B17/26

摘要： A system and method is disclosed for providing real time signal to noise computation for a 100 Mb Ethernet physical layer device. A slicer module obtains a slicer error signal in the physical layer device and generates a signal that represents a square of the slicer error signal. A variance computation unit uses the signal that represents the square of the slicer error signal to calculate a value of variance of a histogram of the physical layer device by continuously accumulating a plurality of values of the square of the slicer error signal for a selected period of time. A real time signal to noise ratio is then computed using the calculated value of the variance of the histogram of the physical layer device.

摘要翻译： 公开了一种用于为100Mb以太网物理层设备提供实时信号到噪声计算的系统和方法。 限幅器模块在物理层设备中获得限幅器误差信号，并产生一个表示限幅器误差信号的平方的信号。 方差计算单元使用表示限幅器误差信号的平方的信号，通过连续地累积切片器误差信号的平方的多个值来计算物理层装置的直方图的方差值 时间。 然后使用计算的物理层设备的直方图的方差的值来计算实时信噪比。

公开(公告)号：US09331922B2

公开(公告)日：2016-05-03

申请号：US13571964

申请日：2012-08-10

申请人： Vivek Venkatraman ,  Magesh Valliappan

发明人： Vivek Venkatraman ,  Magesh Valliappan

IPC分类号： H04L1/00 ,  H04L12/26 ,  H04L12/24

CPC分类号： H04L43/0811 ,  H04L41/0672

摘要： A switch device can identify when a loss of signal event occurs on a communication link connecting a local link partner and a remote link partner. The switch device may automatically perform a link restart process to restore communication with the remote link partner without performing a speed negotiation with the remote link partner. The link restart process may include disabling a transmitter for a recovery duration and configuring a transmitter and a receiver to an initial configuration state. The link restart process may also synchronize the start of a training protocol communication between the local link partner and remote link partner. The switch device may also perform the link restart process when traffic received from the remote link partner fails a link criteria.

摘要翻译： 开关设备可以识别何时在连接本地链路伙伴和远程链路伙伴的通信链路上发生信号事件的丢失。 交换机设备可以自动执行链路重启过程以恢复与远程链路伙伴的通信，而不与远程链路伙伴进行速度协商。 链路重启过程可以包括在恢复持续时间内禁用发射机，并将发射机和接收机配置为初始配置状态。 链路重启过程还可以使本地链路伙伴和远程链路伙伴之间的训练协议通信的开始同步。 当从远程链路伙伴接收的流量失败时，交换设备也可以执行链路重启过程。

公开(公告)号：US20140043957A1

公开(公告)日：2014-02-13

申请号：US13571964

申请日：2012-08-10

申请人： Vivek Venkatraman ,  Magesh Valliappan

发明人： Vivek Venkatraman ,  Magesh Valliappan

IPC分类号： H04L29/14

CPC分类号： H04L43/0811 ,  H04L41/0672

摘要： A switch device can identify when a loss of signal event occurs on a communication link connecting a local link partner and a remote link partner. The switch device may automatically perform a link restart process to restore communication with the remote link partner without performing a speed negotiation with the remote link partner. The link restart process may include disabling a transmitter for a recovery duration and configuring a transmitter and a receiver to an initial configuration state. The link restart process may also synchronize the start of a training protocol communication between the local link partner and remote link partner. The switch device may also perform the link restart process when traffic received from the remote link partner fails a link criteria.

摘要翻译： 开关设备可以识别何时在连接本地链路伙伴和远程链路伙伴的通信链路上发生信号事件的丢失。 交换机设备可以自动执行链路重启过程以恢复与远程链路伙伴的通信，而不与远程链路伙伴进行速度协商。 链路重启过程可以包括在恢复持续时间内禁用发射机，并将发射机和接收机配置为初始配置状态。 链路重启过程还可以使本地链路伙伴和远程链路伙伴之间的训练协议通信的开始同步。 当从远程链路伙伴接收的流量失败时，交换设备也可以执行链路重启过程。