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公开(公告)号：US08018838B2
公开(公告)日：2011-09-13
申请号：US10606948
申请日：2003-06-25
IPC分类号： H04L1/00
CPC分类号： H04L1/22 , H04L2001/0092
摘要： A system supports 50 ms protection switching times independent of network architecture. The system includes multiple protection switch fabrics to perform facility protection switching for the signals and a central switch fabric to switch a subset of the signals in a non-facility protection switching manner among the protection switch fabrics. Linear and ring network configurations are supported by the system. The system has flexibility to perform Linear Automatic Protection Switching (LAPS), Unidirection Path Switched Ring (UPSR) protection switching, and Bidirectional Line Switched Ring (BLSR) protection switching without burdening the central switch fabric with unnecessary or redundant traffic.
摘要翻译： 系统支持独立于网络架构的50 ms保护切换时间。 该系统包括多个保护交换结构，用于对信号执行设备保护切换，以及中央交换结构，以保护交换结构之间的非设施保护交换方式切换信号子集。 系统支持线性和环形网络配置。 该系统具有灵活性，可以执行线性自动保护切换（LAPS），单向路由交换环（UPSR）保护倒换和双向线路交换环（BLSR）保护交换，而不会对不必要或冗余流量的中央交换机结构造成负担。
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公开(公告)号：US07940786B2
公开(公告)日：2011-05-10
申请号：US12023180
申请日：2008-01-31
IPC分类号： H04L12/54
CPC分类号： H04L49/606 , H04L12/5601 , H04L49/101 , H04L49/205 , H04L49/254 , H04L49/30 , H04L49/3009 , H04L49/3081 , H04L2012/5651 , H04L2012/5667 , H04L2012/5679 , H04L2012/5681
摘要： A communication system includes a first ingress content processor that receives information associated with a first traffic type. The first ingress content processor places the information associated with the first traffic type into a system cell having a common system cell format. A second ingress content processor receives information associated with a second traffic type. The second ingress content processor places the information associated with the second traffic type into a system cell having the common system cell format. A switch fabric receives system cells from the first and second ingress content processors. System cells from the first ingress content processor are automatically sent to the switch fabric while system cells from the second ingress content processor are required to be scheduled before being sent to the switch fabric. The switch fabric separately queues system cells carrying payloads associated with the first traffic type from system cells carrying payloads associated with the second traffic type. The switch fabric services system cells carrying payloads associated with the first traffic type prior to servicing system cells carrying payloads associated with the second traffic type.
摘要翻译： 通信系统包括接收与第一业务类型相关联的信息的第一入口内容处理器。 第一入口内容处理器将与第一业务类型相关联的信息放置到具有公共系统小区格式的系统小区中。 第二入口内容处理器接收与第二业务类型相关联的信息。 第二入口内容处理器将与第二业务类型相关联的信息放置到具有公共系统小区格式的系统小区中。 交换结构从第一和第二入口内容处理器接收系统单元。 来自第一入口内容处理器的系统单元被自动发送到交换结构，而需要在来自第二入口内容处理器的系统小区被发送到交换结构之前进行调度。 交换结构单独地将承载与第一业务类型相关联的有效载荷的系统小区排队，以承载与第二业务类型相关联的负载的系统小区。 交换结构服务系统小区在承载与第二业务类型相关联的有效载荷的系统小区之前承载与第一业务类型相关联的有效载荷。
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3.发明申请公开(公告)号：US20080123674A1
公开(公告)日：2008-05-29
申请号：US12023180
申请日：2008-01-31
IPC分类号： H04L12/56
CPC分类号： H04L49/606 , H04L12/5601 , H04L49/101 , H04L49/205 , H04L49/254 , H04L49/30 , H04L49/3009 , H04L49/3081 , H04L2012/5651 , H04L2012/5667 , H04L2012/5679 , H04L2012/5681
摘要： A communication system includes a first ingress content processor that receives information associated with a first traffic type. The first ingress content processor places the information associated with the first traffic type into a system cell having a common system cell format. A second ingress content processor receives information associated with a second traffic type. The second ingress content processor places the information associated with the second traffic type into a system cell having the common system cell format. A switch fabric receives system cells from the first and second ingress content processors. System cells from the first ingress content processor are automatically sent to the switch fabric while system cells from the second ingress content processor are required to be scheduled before being sent to the switch fabric. The switch fabric separately queues system cells carrying payloads associated with the first traffic type from system cells carrying payloads associated with the second traffic type. The switch fabric services system cells carrying payloads associated with the first traffic type prior to servicing system cells carrying payloads associated with the second traffic type.
摘要翻译： 通信系统包括接收与第一业务类型相关联的信息的第一入口内容处理器。 第一入口内容处理器将与第一业务类型相关联的信息放置到具有公共系统小区格式的系统小区中。 第二入口内容处理器接收与第二业务类型相关联的信息。 第二入口内容处理器将与第二业务类型相关联的信息放置到具有公共系统小区格式的系统小区中。 交换结构从第一和第二入口内容处理器接收系统单元。 来自第一入口内容处理器的系统单元被自动发送到交换结构，而需要在来自第二入口内容处理器的系统小区被发送到交换结构之前进行调度。 交换结构单独地将承载与第一业务类型相关联的有效载荷的系统小区排队，以承载与第二业务类型相关联的负载的系统小区。 交换结构服务系统小区在承载与第二业务类型相关联的有效载荷的系统小区之前承载与第一业务类型相关联的有效载荷。
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公开(公告)号：US07327747B2
公开(公告)日：2008-02-05
申请号：US10232339
申请日：2002-08-30
IPC分类号： H04L12/54
CPC分类号： H04L49/606 , H04L12/5601 , H04L49/101 , H04L49/205 , H04L49/254 , H04L49/30 , H04L49/3009 , H04L49/3081 , H04L2012/5651 , H04L2012/5667 , H04L2012/5679 , H04L2012/5681
摘要： A communication system includes a first ingress content processor that receives information associated with a first traffic type. The first ingress content processor places the information associated with the first traffic type into a system cell having a common system cell format. A second ingress content processor receives information associated with a second traffic type. The second ingress content processor places the information associated with the second traffic type into a system cell having the common system cell format. A switch fabric receives system cells from the first and second ingress content processors. System cells from the first ingress content processor are automatically sent to the switch fabric while system cells from the second ingress content processor are required to be scheduled before being sent to the switch fabric. The switch fabric separately queues system cells carrying payloads associated with the first traffic type from system cells carrying payloads associated with the second traffic type. The switch fabric services system cells carrying payloads associated with the first traffic type prior to servicing system cells carrying payloads associated with the second traffic type.
摘要翻译： 通信系统包括接收与第一业务类型相关联的信息的第一入口内容处理器。 第一入口内容处理器将与第一业务类型相关联的信息放置到具有公共系统小区格式的系统小区中。 第二入口内容处理器接收与第二业务类型相关联的信息。 第二入口内容处理器将与第二业务类型相关联的信息放置到具有公共系统小区格式的系统小区中。 交换结构从第一和第二入口内容处理器接收系统单元。 来自第一入口内容处理器的系统单元被自动发送到交换结构，而需要在来自第二入口内容处理器的系统小区被发送到交换结构之前进行调度。 交换结构单独地将承载与第一业务类型相关联的有效载荷的系统小区排队，以承载与第二业务类型相关联的负载的系统小区。 交换结构服务系统小区在承载与第二业务类型相关联的有效载荷的系统小区之前承载与第一业务类型相关联的有效载荷。
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公开(公告)号：US08320409B2
公开(公告)日：2012-11-27
申请号：US10631479
申请日：2003-07-31
CPC分类号： H04B10/1149 , H04J3/0608 , H04J3/0641 , H04J3/085 , H04J3/14 , H04J2203/0042 , H04J2203/006
摘要： Erroneous data due to faults are prevented from propagating through a distributed network node having diversely routed communications links by using a fault masking technique that eliminates the 60 ms of error propagation time associated with SONET networks. The fault masking technique can also prevent random bit errors from propagating through the distributed network node. A frame alignment technique used in the network node is scalable for very wide words (e.g., 128 bits) for use with high speed optical communications protocols, such as OC-192.
摘要翻译： 通过使用消除与SONET网络相关联的60ms的错误传播时间的故障屏蔽技术，防止由故障导致的错误数据传播通过具有不同路由通信链路的分布式网络节点。 故障屏蔽技术还可以防止随机位错误传播通过分布式网络节点。 在网络节点中使用的帧对准技术对于用于与诸如OC-192的高速光通信协议一起使用的非常宽的字（例如，128位）是可缩放的。
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6.发明申请Method and apparatus for distributing synchronization status messages over a Resilient Packet Ring (RPR) 审中-公开用于通过弹性分组环（RPR）分发同步状态消息的方法和装置公开(公告)号：US20090016384A1
公开(公告)日：2009-01-15
申请号：US11827545
申请日：2007-07-12
申请人： Weiying Cheng , Chris R. Zettinger
发明人： Weiying Cheng , Chris R. Zettinger
CPC分类号： H04L12/422 , H04J3/0641 , H04J3/0658
摘要： Packets used for distributing timing information over a Resilient Packet Ring (RPR) are generated by encoding Synchronization Status Messaging (SSM) messages into IEEE 802.3ah OAM packets (or any other OAM packets, such as those defined in ITU Y.1731). Information indicating the direction that each message is to be transmitted around the RPR ring is also encoded in the packets in either the spare bits of the SSM messages or in the Type-Length-Value (TLV) bytes of the IEEE 802.3ah OAM packets or Y.1731 OAM packets. RPR protection is disabled for the packets carrying the SSM messages and the packets are transmitted to adjacent network nodes in the directions specified by the information encoded in the messages. Information encoded in received packets specifying timing quality and direction of the received messages is observed and compared to determine which timing information included in the messages to use for clock timing.
摘要翻译： 用于通过弹性分组环（RPR）分发定时信息的分组是通过将同步状态消息（SSM）消息编码为IEEE 802.3ah OAM分组（或任何其他OAM分组，例如ITU Y.1731中定义的那些）来生成的。 指示每个消息围绕RPR环传送的方向的信息也被编码在SSM消息的备用位或IEEE 802.3ah OAM数据包的类型长度值（TLV）字节中的数据包中，或 Y.1731 OAM包。 对于携带SSM消息的报文，RPR保护被禁止，并且分组按照消息中编码的信息指定的方向发送到相邻的网络节点。 观察并比较指定定时质量和接收到的消息方向的接收分组中编码的信息，以确定包括在用于时钟定时的消息中的定时信息。
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7.发明授权Methods and apparatuses for performing protection switching without using Y.1731-based automatic protection switching (APS) messages 有权不使用基于Y.1731的自动保护切换（APS）消息进行保护切换的方法和装置公开(公告)号：US09025465B2
公开(公告)日：2015-05-05
申请号：US12607558
申请日：2009-10-28
CPC分类号： H04L45/22 , H04L12/4633 , H04L12/4641 , H04L41/0681 , H04L41/0816 , H04L45/586
摘要： To perform protection switching between tunnels in a network, Y.1731-based APS messages are often sent from a management system to nodes at the tunnels' end-points. If the management system is located near one node (local node) and far away from the other node (remote node), the APS message, which operates at the Ethernet service layer, travels to the remote node slower than traffic over the tunnels. This slower transmission time may prevent the remote node from performing a switch within a desired timeframe. The disclosed embodiments include a 1:1 bidirectional VLAN-based protection arrangement that accomplishes a 50 millisecond switching time without using Y.1731-based APS messages. The embodiments accomplish this by sending a switching command from the management system to the local node and modifying a message already traveling from the local node to the remote node to include a switching message that causes the remote node to perform the switch.
摘要翻译： 为了在网络中的隧道之间进行保护切换，基于Y.1731的APS消息通常从管理系统发送到隧道端点的节点。 如果管理系统位于一个节点（本地节点）附近并远离另一个节点（远程节点），则在以太网服务层运行的APS消息传播到远程节点比隧道上的流量慢。 这种较慢的传输时间可能会阻止远程节点在期望的时间范围内执行切换。 所公开的实施例包括在不使用基于Y.1731的APS消息的情况下实现50毫秒切换时间的基于VLAN的基于VLAN的保护布置。 这些实施例通过从管理系统向本地节点发送切换命令并修改已经从本地节点传播到远程节点的消息来包括使远程节点执行切换的切换消息来实现。
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8.发明申请公开(公告)号：US20120293934A1
公开(公告)日：2012-11-22
申请号：US13368045
申请日：2012-02-07
CPC分类号： G06F1/186 , H01R27/02 , H01R29/00 , H04L49/30 , Y10T29/49117
摘要： An embodiment of the invention comprises a reconfigurable chassis with one or more multi-functionality card slots, where each multi-functionality card slot is capable of being populated with at least one of a plurality of different types of cards, including port cards and switch cards. In a first configuration, the port card slots and the multi-functionality card slots are populated with port cards. In a second configuration, a first set of multi-functionality card slots is populated with switch cards and a second set of multi-functionality card slots is populated with port cards. In a third configuration, the first set of multi-functionality card slots and the second set of multi-functionality card slots are populated with switch cards.
摘要翻译： 本发明的实施例包括具有一个或多个多功能卡插槽的可重新配置的机架，其中每个多功能卡插槽能够使用多个不同类型的卡中的至少一个来填充，包括端口卡和开关卡 。 在第一种配置中，端口卡插槽和多功能卡插槽都装有端口卡。 在第二配置中，第一组多功能卡插槽用开关卡填充，并且第二组多功能卡插槽用端口卡填充。 在第三配置中，第一组多功能卡插槽和第二组多功能卡插槽用开关卡填充。
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9.发明申请Method and apparatus for carrying unknown traffic over a resilient packet ring (RPR) without flooding 审中-公开通过弹性分组环（RPR）承载未知流量而不淹没的方法和装置公开(公告)号：US20080310437A1
公开(公告)日：2008-12-18
申请号：US11818760
申请日：2007-06-15
IPC分类号： H04L12/28
CPC分类号： H04L12/42 , H04L12/4641 , H04L45/50 , H04L2212/00
摘要： A method and corresponding apparatus allows unknown packet traffic, such as Ethernet traffic, to be carried on a Resilient Packet Ring (RPR) network without flooding the traffic on the RPR network. Modules in a station of the ring network compare a destination address in a packet traffic signal with known addresses and associate an identifier of a tunnel in the ring network with the packet traffic signal based on the comparison. The modules then associate with the packet traffic signal an identifier of a destination station in the ring network that corresponds to the identifier of the tunnel and forward the packet traffic signal to the destination station via the tunnel. By transmitting the packet traffic via tunnels instead of flooding the RPR network, spatial reuse may be implemented allowing the network to support a higher volume of traffic.
摘要翻译： 一种方法和相应的装置允许在弹性分组环（RPR）网络上携带诸如以太网业务的未知分组业务，而不会洪泛RPR网络上的业务。 环网的站中的模块将分组业务信号中的目的地址与已知地址进行比较，并根据比较将环网中的隧道的标识符与分组业务信号相关联。 然后，模块将分组业务信号与环网中对应于隧道的标识符的目的站的标识符相关联，并且经由隧道将分组业务信号转发到目的站。 通过经由隧道传输分组业务而不是洪泛RPR网络，可以实现空间重用，允许网络支持更大量的业务。
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10.发明授权公开(公告)号：US09047062B2
公开(公告)日：2015-06-02
申请号：US13368045
申请日：2012-02-07
IPC分类号： H04L12/935 , G06F1/18 , H01R27/02 , H01R29/00
CPC分类号： G06F1/186 , H01R27/02 , H01R29/00 , H04L49/30 , Y10T29/49117
摘要： An embodiment of the invention comprises a reconfigurable chassis with one or more multi-functionality card slots, where each multi-functionality card slot is capable of being populated with at least one of a plurality of different types of cards, including port cards and switch cards. In a first configuration, the port card slots and the multi-functionality card slots are populated with port cards. In a second configuration, a first set of multi-functionality card slots is populated with switch cards and a second set of multi-functionality card slots is populated with port cards. In a third configuration, the first set of multi-functionality card slots and the second set of multi-functionality card slots are populated with switch cards.
摘要翻译： 本发明的实施例包括具有一个或多个多功能卡插槽的可重新配置的机架，其中每个多功能卡插槽能够使用多个不同类型的卡中的至少一个来填充，包括端口卡和开关卡 。 在第一种配置中，端口卡插槽和多功能卡插槽都装有端口卡。 在第二配置中，第一组多功能卡插槽用开关卡填充，并且第二组多功能卡插槽用端口卡填充。 在第三配置中，第一组多功能卡插槽和第二组多功能卡插槽用开关卡填充。
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