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1. 发明授权

US06862564B1 Network emulator 失效
标题翻译：网络仿真器
公开(公告)号：US06862564B1
公开(公告)日：2005-03-01
申请号：US09696860
申请日：2000-10-26
申请人： Chikong Shue , John Thomas Moy , Tao Yang , Raymond Xie
发明人： Chikong Shue , John Thomas Moy , Tao Yang , Raymond Xie
IPC分类号： G06F13/00 , H04L12/24 , H04L29/08 , H04M3/32
CPC分类号： H04L41/145 , H04L41/0806 , H04L69/325 , H04M3/323
摘要： A system and a method for providing an emulated network including a plurality of emulated networking devices, in which a number of network node executable images are employed. Each of the network node executable images corresponds to one of the emulated networking devices. The emulated networking devices represent physical networking devices, such as optical switches. A portion of each of the network node executable images is operable to execute without modification on a physical networking device. Each of the network node executable images includes a number of program components, such as a topology related program component for maintaining a representation of the topology of the emulated network, a trunk manager program component for maintaining at least one emulated trunk between the corresponding emulated networking device and an adjacent other emulated networking device, and a circuit manager program component operable to maintain at least one emulated circuit between the corresponding emulated networking device and another one of the emulated networking devices. Various numbers of network node executable images may be executed on a single emulator machine, and multiple emulator machines may be employed to execute a single network node executable image.
摘要翻译：一种用于提供包括多个仿真网络设备的仿真网络的系统和方法，其中采用多个网络节点可执行映像。每个网络节点可执行映像对应于仿真网络设备中的一个。仿真网络设备代表物理网络设备，如光开关。每个网络节点可执行映像的一部分可操作以在物理网络设备上无需修改地执行。每个网络节点可执行映像包括许多程序组件，例如用于维护仿真网络的拓扑的表示的拓扑相关程序组件，用于在对应的仿真网络之间维护至少一个仿真中继线的中继管理程序组件设备和相邻的其它仿真网络设备，以及电路管理器程序组件，其可操作以在相应的仿真网络设备和所述仿真网络设备中的另一个之间维护至少一个仿真电路。可以在单个仿真器机器上执行各种数量的网络节点可执行映像，并且可以采用多个仿真器机器来执行单个网络节点可执行映像。

2. 发明申请

US20050041601A1 Shared network ring protection 审中-公开
标题翻译：共享网络环保护
公开(公告)号：US20050041601A1
公开(公告)日：2005-02-24
申请号：US10887249
申请日：2004-07-08
申请人： Anthony Kam , Raymond Xie , Tao Yang , Naimish Patel
发明人： Anthony Kam , Raymond Xie , Tao Yang , Naimish Patel
IPC分类号： G06F20060101 , H04J1/16 , H04L12/26 , H04L12/28
CPC分类号： H04J3/14 , H04J3/1611
摘要： A shared protect link extends between adjacent nodes that are shared by two or more adjacent BLSR rings. The shared protect link obviates the need for separate protect links between the adjacent nodes for each of the rings. A composite BLSR controller resides in each of the adjacent nodes. The composite BLSR controllers coordinate usage of the shared protect link, for example as a result of a span switch or a ring switch request. The composite BLSR controllers also coordinate transmission of signaling information for each of the rings over the common span between the adjacent nodes. In one embodiment, the signaling information is sent over separate channels of the common span. In another embodiment, the signaling information is multiplexed over the shared protect link. Each ring can be assigned a ring ID. The communication protocol between the adjacent nodes can be modified to tag the signaling information with the appropriate ring ID. The composite BLSR controller can include a standard BLSR controller for each of the adjacent rings and a translator logically between the standard BLSR controllers and the spans.
摘要翻译：共享保护链路在由两个或更多个相邻BLSR环共享的相邻节点之间延伸。共享保护链路消除了对于每个环的相邻节点之间的单独保护链路的需要。复合BLSR控制器驻留在每个相邻节点中。复合BLSR控制器协调共享保护链路的使用，例如作为跨度交换机或环网交换机请求的结果。复合BLSR控制器还协调在相邻节点之间的公共跨度上的每个环的信令信息的传输。在一个实施例中，信令信息在公共跨度的不同信道上发送。在另一个实施例中，信令信息在共享保护链路上被复用。每个戒指都可以分配一个戒指ID。可以修改相邻节点之间的通信协议，以使用适当的环ID标记信令信息。复合BLSR控制器可以包括用于每个相邻环的标准BLSR控制器和逻辑上在标准BLSR控制器和跨度之间的转换器。

3. 发明申请

US20050041575A1 Network span protection using span identifiers 有权
标题翻译：使用跨度标识符进行网络跨度保护
公开(公告)号：US20050041575A1
公开(公告)日：2005-02-24
申请号：US10886154
申请日：2004-07-07
申请人： Anthony Kam , Raymond Xie , Tao Yang , Naimish Patel
发明人： Anthony Kam , Raymond Xie , Tao Yang , Naimish Patel
IPC分类号： G06F20060101 , H04J1/16 , H04L12/26 , H04L12/28
CPC分类号： H04J3/14 , H04J3/1611
摘要： Each span of a communication network, such as a BLSR ring, is assigned a unique span ID. When a node of the network detects a failure in a span (including a straddling span) of the network, the node exchanges commands, according to an automatic protection switching (APS) protocol, that request other nodes of the network to switch network traffic from a working span (including a straddling span) to a protect span. The commands specify the working span by its span ID, without necessarily specifying a source node ID or a destination node ID for the commands. The span ID occupies fewer bits in the commands than a combination of the source node ID and the destination node ID. Consequently, the messages can accommodate span IDs larger than four bits, and networks can have more than 16 nodes. Alternatively, the commands specify a destination node ID without a span ID or a source node ID, or the commands specify a source node ID without a span ID or a destination node ID. Alternatively, a straddling span is identified by node IDs of its two nonadjacent terminal nodes. A set of rules governs straddling span switching. Optionally or in addition, more than four bits are available for bridge requests command codes in the messages. Thus, more than 16 unique bridge requests commands can be defined.
摘要翻译：诸如BLSR环的通信网络的每个跨度被分配唯一的跨度ID。当网络的节点检测到网络的跨度（包括跨度跨度）的故障时，节点根据自动保护倒换（APS）协议交换命令，请求网络的其他节点将网络流量从工作范围（包括跨跨跨度）到保护范围。这些命令通过其跨度ID指定工作范围，而不必为命令指定源节点ID或目标节点ID。与源节点ID和目标节点ID的组合相比，该范围ID在命令中占用较少的位。因此，消息可以容纳大于四位的跨度ID，并且网络可以具有多于16个节点。或者，命令指定没有跨度ID或源节点ID的目标节点ID，或者该命令指定没有跨度ID或目的地节点ID的源节点ID。或者，跨越跨度由其两个不相邻终端节点的节点ID标识。一套规则管理跨越跨度切换。可选地或另外，消息中的桥请求命令码可以有四位以上。因此，可以定义超过16个独特的桥请求命令。

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