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公开(公告)号：US20120275293A1
公开(公告)日：2012-11-01
申请号：US13546144
申请日：2012-07-11
CPC分类号： H04L41/0681 , H04L43/0811 , H04L43/10
摘要： In an Ethernet network element comprising at least one line interface element and a central processing unit (CPU) to control forwarding of data packets at the network element, a method comprising receiving continuity check messages (CCMs) at the at least one line interface element, and processing the CCMs in the at least one line interface element to provide continuity checks for connections to the network element without requiring processing of CCMs by the CPU.
摘要翻译： 在包括至少一个线路接口元件和中央处理单元（CPU）的以太网网络元件中，用于控制在网络元件处的数据分组的转发，一种方法包括在所述至少一个线路接口元件处接收连续性检查消息（CCM） 以及处理所述至少一个线路接口元件中的CCM以提供对所述网络元件的连接的连续性检查，而不需要由CPU处理CCM。
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公开(公告)号：US08243608B2
公开(公告)日：2012-08-14
申请号：US12345815
申请日：2008-12-30
IPC分类号： H04L12/26
CPC分类号： H04L41/0681 , H04L43/0811 , H04L43/10
摘要： A network element disposed at an edge of a connectivity fault management (CFM) domain includes a switch fabric, a central processor (CP) card, and a line card in communication with the CP card through the switch fabric. The line card includes an Ethernet interface for transmitting and receiving Ethernet CFM frames over a network and circuitry configured to generate new continuity check messages (CCMs) periodically, to process CCMs received on each connection supported by the line card, and to detect a loss of continuity for any of the connections supported by the line card. The line card maintains a list of supported connections. A generate timer and an age counter are associated with each connection in the list. The line card generates a CCM for a given connection when the generate timer expires and detects a loss of continuity for the given connection when its age counter exceeds a threshold.
摘要翻译： 设置在连接故障管理（CFM）域的边缘处的网元包括交换结构，中央处理器（CP）卡和通过交换结构与CP卡通信的线卡。 线卡包括用于通过网络发送和接收以太网CFM帧的以太网接口，以及周期性地生成新的连续性检查消息（CCM）的电路，以处理由线卡支持的每个连接上接收的CCM，并且检测丢失 线卡支持的任何连接的连续性。 线路卡维护支持的连接的列表。 生成计时器和年龄计数器与列表中的每个连接相关联。 当生成定时器到期并且当其年龄计数器超过阈值时，检测到给定连接的连续性损失时，线卡将为给定连接生成CCM。
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公开(公告)号：US20100169718A1
公开(公告)日：2010-07-01
申请号：US12345815
申请日：2008-12-30
IPC分类号： G06F11/00
CPC分类号： H04L41/0681 , H04L43/0811 , H04L43/10
摘要： A network element disposed at an edge of a connectivity fault management (CFM) domain includes a switch fabric, a central processor (CP) card, and a line card in communication with the CP card through the switch fabric. The line card includes an Ethernet interface for transmitting and receiving Ethernet CFM frames over a network and circuitry configured to generate new continuity check messages (CCMs) periodically, to process CCMs received on each connection supported by the line card, and to detect a loss of continuity for any of the connections supported by the line card. The line card maintains a list of supported connections. A generate timer and an age counter are associated with each connection in the list. The line card generates a CCM for a given connection when the generate timer expires and detects a loss of continuity for the given connection when its age counter exceeds a threshold.
摘要翻译： 设置在连接故障管理（CFM）域的边缘处的网元包括交换结构，中央处理器（CP）卡和通过交换结构与CP卡通信的线卡。 线卡包括用于通过网络发送和接收以太网CFM帧的以太网接口，以及周期性地生成新的连续性检查消息（CCM）的电路，以处理由线卡支持的每个连接上接收的CCM，并且检测丢失 线卡支持的任何连接的连续性。 线路卡维护支持的连接的列表。 生成计时器和年龄计数器与列表中的每个连接相关联。 当生成定时器到期并且当其年龄计数器超过阈值时，检测到给定连接的连续性损失时，线卡将为给定连接生成CCM。
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公开(公告)号：US20070025731A1
公开(公告)日：2007-02-01
申请号：US09931643
申请日：2001-08-15
申请人： Bruce Schofield , James Luciani , Michael Craren
发明人： Bruce Schofield , James Luciani , Michael Craren
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04L45/00 , H04L45/60 , H04L45/62 , H04Q11/0066 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0039 , H04Q2011/005 , H04Q2011/0073
摘要： An optical switch router performs both optical switching and traditional routing. The optical switch router includes optical interfaces for coupling to one or more incoming optical fibers and to one or more outgoing optical fibers, and also includes a number of traditional router ports. Individual incoming optical data streams received over the incoming optical fiber(s) can be selectively passed through to one or more of the outgoing optical fibers or “dropped” from the optical communication path for traditional routing. Routed traffic, which can be received over the router ports or from the “dropped” optical data streams, can be forwarded over optical data streams that are “added” to the outgoing optical fiber(s). The “added” optical data streams may be added to the outgoing optical fiber(s) at any unused wavelengths, including, but not limited to, the wavelengths of the “dropped” optical data streams.
摘要翻译： 光交换路由器执行光交换和传统路由。 光交换路由器包括用于耦合到一个或多个入射光纤和一个或多个输出光纤的光接口，并且还包括多个传统路由器端口。 通过输入光纤接收的各个输入光数据流可以选择性地通过一个或多个输出光纤或者从光通信路径“丢弃”以进行传统路由。 可以通过路由器端口或从“丢弃的”光学数据流接收的路由流量可以通过“添加”到输出光纤的光数据流转发。 “附加”光学数据流可以以任何未使用的波长添加到出射光纤，包括但不限于“丢弃”光学数据流的波长。
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公开(公告)号：US20050076169A1
公开(公告)日：2005-04-07
申请号：US10678677
申请日：2003-10-03
CPC分类号： G06F9/3851 , G06F13/36
摘要： An external memory engine selectable pipeline architecture provides external memory to a multi-thread packet processor which processes data packets using a multi-threaded pipelined machine wherein no instruction depends on a preceding instruction because each instruction in the pipeline is executed for a different thread. The route switch packet architecture transfers a data packet from a flexible data input buffer to a packet task manager, dispatches the data packet from the packet task manager to a multi-threaded pipelined analysis machine, classifies the data packet in the analysis machine, modifies and forwards the data packet in a packet manipulator.
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