公开(公告)号：US09203644B2

公开(公告)日：2015-12-01

申请号：US12420970

申请日：2009-04-09

申请人： Marc Holness ,  Abdullah Bashar ,  Marc-Andre Rochon

发明人： Marc Holness ,  Abdullah Bashar ,  Marc-Andre Rochon

IPC分类号： H04L12/28 ,  H04L12/46 ,  H04L12/427 ,  H04L12/701 ,  H04L12/42 ,  H04L12/931 ,  H04L12/935 ,  H04L12/751

CPC分类号： H04L12/4641 ,  H04L12/42 ,  H04L12/427 ,  H04L45/00 ,  H04L45/02 ,  H04L49/3009 ,  H04L49/351

摘要： A unique RVID is used for each spoke node to identify traffic flowing from that spoke node to the hub and from the hub to the spoke. Spoke nodes perform MAC learning on any frame containing their assigned unique RVID and only bridge traffic received on the ring to a client port if the traffic contains their assigned RVID. Thus, MAC learning at the spoke is localized to client routes, or to routes of interest that pass through the hub. The hub node learns C-VID/RVID-ringport bindings for traffic on the ring. When a frame is received on the ring, the hub will use the C-VID and RVID to determine the I-SID and forward the traffic onto the external network. When a frame is received from the external network, the hub node will use the I-SID & C-VID to determine the RVID of the spoke node, and then use the C-VID & RVID to determine, from its forwarding database, which ringport should be used to output the frame.

摘要翻译： 每个辐条节点都使用唯一的RVID来识别从该辐条节点到集线器以及从集线器到辐条的流量。 Spoke节点在包含其分配的唯一RVID的任何帧上执行MAC学习，并且只有在流量包含其分配的RVID时才将环上接收到的流量桥接到客户端端口。 因此，在轮辐处的MAC学习被本地化到客户端路由或通过集线器的兴趣路线。 集线器节点学习环路上的流量的C-VID / RVID-ringport绑定。 当在环上收到帧时，集线器将使用C-VID和RVID来确定I-SID并将流量转发到外部网络。 当从外部网络接收到帧时，集线器节点将使用I-SID和C-VID来确定分支节点的RVID，然后使用C-VID和RVID从其转发数据库中确定哪个 应该使用ringport来输出框架。

公开(公告)号：US20120281710A1

公开(公告)日：2012-11-08

申请号：US13388780

申请日：2009-07-31

申请人： Marc Holness ,  Abdullah Bashar ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

发明人： Marc Holness ,  Abdullah Bashar ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

IPC分类号： H04L12/28

CPC分类号： H04L12/437 ,  H04L45/28 ,  H04L45/50

摘要： A system for controlling packet forwarding through a point-to-point (p2p) connection between first and second end nodes of a packet network domain having a mesh topology. The system comprises a sub-ring network instantiated in the network domain, the sub-ring network comprising a pair of topologically diverse ring spans extending between the first and second end nodes. Each of the end nodes is controlled to forward packets of the p2p connection through the sub-ring network in accordance with a ring network routing scheme, and an intermediate node traversed by one of the ring spans is controlled to forward packets of the p2p connection through the ring span in accordance with a linear path routing scheme.

摘要翻译： 一种用于通过具有网状拓扑的分组网络域的第一和第二端节点之间的点对点（p2p）连接来控制分组转发的系统。 该系统包括在网络域中实例化的子环网络，子环网络包括在第一和第二端节点之间延伸的一对拓扑不同的环跨。 根据环网路由方案，对每个终端节点进行控制，通过子环网转发p2p连接的数据包，并控制由其中一个环网跨越的中间节点转发p2p连接的数据包 环形根据线性路径路由方案。

公开(公告)号：US08787398B2

公开(公告)日：2014-07-22

申请号：US13388780

申请日：2009-07-31

申请人： Marc Holness ,  Bashar Abdullah ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

发明人： Marc Holness ,  Bashar Abdullah ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

IPC分类号： H04L12/28

CPC分类号： H04L12/437 ,  H04L45/28 ,  H04L45/50

摘要： A system for controlling packet forwarding through a point-to-point (p2p) connection between first and second end nodes of a packet network domain having a mesh topology. The system comprises a sub-ring network instantiated in the network domain, the sub-ring network comprising a pair of topologically diverse ring spans extending between the first and second end nodes. Each of the end nodes is controlled to forward packets of the p2p connection through the sub-ring network in accordance with a ring network routing scheme, and an intermediate node traversed by one of the ring spans is controlled to forward packets of the p2p connection through the ring span in accordance with a linear path routing scheme.

摘要翻译： 一种用于通过具有网状拓扑的分组网络域的第一和第二端节点之间的点对点（p2p）连接来控制分组转发的系统。 该系统包括在网络域中实例化的子环网络，子环网络包括在第一和第二端节点之间延伸的一对拓扑不同的环跨。 根据环网路由方案，对每个终端节点进行控制，通过子环网转发p2p连接的数据包，并控制由其中一个环网跨越的中间节点转发p2p连接的数据包 环形根据线性路径路由方案。

公开(公告)号：US20080273460A1

公开(公告)日：2008-11-06

申请号：US11782895

申请日：2007-07-25

申请人： Philippe Lamothe ,  Michel Ouellette ,  Marc-Andre Rochon

发明人： Philippe Lamothe ,  Michel Ouellette ,  Marc-Andre Rochon

IPC分类号： H04L1/00 ,  H04L12/26

CPC分类号： H04L67/1095 ,  H04J3/0635 ,  H04L7/02

摘要： A system for synchronizing a first network device and a second network device. The first network device comprises an interface configured to release over a communication link a first signal carrying a first data stream clocked by a first clock signal. The second network device comprises an interface configured to receive the first signal over the communication link. The second network device also comprises a clock extraction module configured to generate an extracted clock signal from the received first signal; and a data coding module configured to clock a second data stream with an output clock signal selected based on a speed of a locally generated clock signal relative to the first clock signal or the extracted clock signal, thereby to produce a second signal for transmission from the second network element to the first network element. By clocking the second data stream with the fastest available clock signal, greater link utilization can be achieved. Furthermore, synchronism between the first and second network elements reduces the incidence of sync slips, which permits a reduction in the size of inter-frame gaps and also affords the use of a clock frequencies exceeding the nominal rate, leading to even greater link utilization.

摘要翻译： 一种用于同步第一网络设备和第二网络设备的系统。 第一网络设备包括被配置为通过通信链路释放承载由第一时钟信号定时的第一数据流的第一信号的接口。 第二网络设备包括被配置为通过通信链路接收第一信号的接口。 第二网络设备还包括：时钟提取模块，被配置为从接收到的第一信号产生提取的时钟信号; 以及数据编码模块，被配置为使用基于相对于所述第一时钟信号或所提取的时钟信号的本地生成的时钟信号的速度选择的输出时钟信号对第二数据流进行时钟，由此产生用于从 第二网络元件到第一网络元件。 通过以最快的可用时钟信号计时第二数据流，可以实现更大的链路利用率。 此外，第一和第二网络元件之间的同步减少了同步滑移的入射，这允许减小帧间间隙的大小，并且还提供使用超过标称速率的时钟频率，导致甚至更大的链路利用率。