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1. 发明授权

US07864665B2 Methods and systems for detecting IP route failure and for dynamically re-routing VoIP sessions in response to failure 有权
标题翻译：用于检测IP路由故障的方法和系统，以及响应故障动态重新路由VoIP会话
公开(公告)号：US07864665B2
公开(公告)日：2011-01-04
申请号：US11015296
申请日：2004-12-17
申请人： Yen Shei , Christopher J. Ouellette , Samuel O. Perry
发明人： Yen Shei , Christopher J. Ouellette , Samuel O. Perry
IPC分类号： G01R31/08
CPC分类号： H04L65/1083 , H04L45/22 , H04L45/28 , H04L45/3065 , H04L69/40
摘要： Methods and systems for detecting IP route failure using a request-reply protocol, such as address resolution protocol (ARP), and for dynamically re-routing VoIP sessions in a VoIP device in response to failure of an IP route are disclosed. A plurality of IP routes are established between a first VoIP device and a second VoIP device. VoIP sessions are assigned to the IP routes. ARP is used to detect a failure of an IP route. In response to detecting a failure of at least one IP route, VoIP sessions are rerouted from the failed IP route to an alternate IP route.
摘要翻译：公开了使用诸如地址解析协议（ARP）的请求回复协议来检测IP路由故障的方法和系统，并且响应于IP路由的故障在VoIP设备中动态地重新路由VoIP会话。在第一VoIP设备和第二VoIP设备之间建立多条IP路由。 VoIP会话被分配给IP路由。 ARP用于检测IP路由的故障。响应于检测到至少一个IP路由的故障，VoIP会话从故障IP路由重新路由到备用IP路由。

2. 发明授权

US07725708B2 Methods and systems for automatic denial of service protection in an IP device 有权
标题翻译： IP设备中自动拒绝服务保护的方法和系统
公开(公告)号：US07725708B2
公开(公告)日：2010-05-25
申请号：US11034672
申请日：2005-01-13
申请人： Ju Wu , Yen Shei
发明人： Ju Wu , Yen Shei
IPC分类号： H04L29/06 , G06F9/00
CPC分类号： H04L41/0893 , H04L43/022 , H04L63/1458
摘要： Methods and systems for automatic denial of service protection in an IP device are disclosed. Packets are received at a network interface of an IP device, the packets being addressed to a network address of the network interface. The packets addressed to the network interface of the IP device are forwarded to a processor in the IP device. The processor determines whether the packets violate a rate-based policing policy of the IP device. In response to determining that the packets violate the rate-based policing policy, source identifying information associated with the packets is added to an access control list in the IP device. Packets matching criteria in the access control list are prevented from being forwarded to the processor in the IP device.
摘要翻译：公开了IP设备中自动拒绝服务保护的方法和系统。分组在IP设备的网络接口处被接收，分组被寻址到网络接口的网络地址。寻址到IP设备的网络接口的分组被转发到IP设备中的处理器。处理器确定这些数据包是否违反IP设备的基于速率的监管策略。响应于确定分组违反基于速率的监管策略，与分组相关联的源标识信息被添加到IP设备中的访问控制列表。防止访问控制列表中的数据包匹配标准被转发到IP设备中的处理器。

3. 发明申请

US20060268888A1 Methods, systems, and computer program products for transporting ATM cells in a device having an ethernet switching fabric 有权
标题翻译：用于在具有以太网交换结构的设备中传送ATM信元的方法，系统和计算机程序产品
公开(公告)号：US20060268888A1
公开(公告)日：2006-11-30
申请号：US11138990
申请日：2005-05-26
申请人： Jinshui Liu , Weisheng Chen , Eric Chang , Yen Shei , David Lu
发明人： Jinshui Liu , Weisheng Chen , Eric Chang , Yen Shei , David Lu
IPC分类号： H04L12/56 , H04J3/16
CPC分类号： H04L12/5601 , H04L49/3009 , H04L49/351 , H04L2012/5618 , H04L2012/5665
摘要： The subject matter described herein includes methods, systems, and computer program products for transporting ATM cells in a device having an Ethernet switching fabric. According to one method, at least one ingress ATM cell is received at an ATM network interface of a device having an Ethernet switching fabric. Next, the connection associated with which the ingress ATM cell is identified. The ATM cell is encapsulated in Ethernet frame addressed to a media processing resource associated with the connection. The Ethernet frame is forwarded to the media processing resource across an Ethernet switching fabric.
摘要翻译：本文描述的主题包括用于在具有以太网交换结构的设备中传送ATM信元的方法，系统和计算机程序产品。根据一种方法，在具有以太网交换结构的设备的ATM网络接口处接收至少一个入口ATM信元。接下来，与入口ATM信元相关联的连接被识别。 ATM信元被封装在以太网帧中，寻址到与该连接相关联的媒体处理资源。以太网帧通过以太网交换结构转发到媒体处理资源。

4. 发明授权

US07969890B2 Methods, systems, and computer program products for load balanced and symmetric path computations for VoIP traffic engineering 有权
标题翻译：用于VoIP流量工程的负载平衡和对称路径计算的方法，系统和计算机程序产品
公开(公告)号：US07969890B2
公开(公告)日：2011-06-28
申请号：US12775442
申请日：2010-05-06
申请人： Edward Y. Qian , San-Qi Li , David Z. Lu , Rupert Zhu , Yen Shei
发明人： Edward Y. Qian , San-Qi Li , David Z. Lu , Rupert Zhu , Yen Shei
IPC分类号： G01R31/08
CPC分类号： H04L45/3065 , H04L45/12
摘要： The subject matter described herein includes methods, systems, and computer program products for load balanced and symmetric SPF path computations for VoIP traffic engineering. One method includes advertising an output interface cost in a first direction over a first network segment between a source IP device and a destination IP device that is different from an output interface cost in advertised in a second direction over the first network segment. A plurality of available network paths between the source IP device and the destination IP device is identified. A path cost is calculated for each of the available network paths from the source IP device to the destination IP device. Calculating a path cost includes, for paths that include the first network segment, substituting the output interface cost advertised in the first direction with the output interface cost advertised in the second direction. The path costs are ranked based on the calculated costs. A lowest cost path is selected from the ranked paths. Both directions of a media session are assigned to the lowest cost path.
摘要翻译：本文描述的主题包括用于VoIP流量工程的负载平衡和对称SPF路径计算的方法，系统和计算机程序产品。一种方法包括在源IP设备和目的地IP设备之间的第一网段上向第一方向广告输出接口成本，所述第一网段与在第一网段上沿第二方向通告的输出接口成本不同。识别源IP设备和目的IP设备之间的多个可用网络路径。针对从源IP设备到目标IP设备的每个可用网络路径计算路径开销。对于包含第一网段的路径，计算路径开销包括以第二方向通告的输出接口成本代替在第一方向上发布的输出接口成本。路径成本根据计算的成本进行排名。从排名的路径中选择最低成本路径。媒体会话的两个方向被分配到最低成本路径。

5. 发明授权

US07961739B2 Systems and methods for voice over multiprotocol label switching 有权
标题翻译：用于语音多协议标签交换的系统和方法
公开(公告)号：US07961739B2
公开(公告)日：2011-06-14
申请号：US11317278
申请日：2005-12-23
申请人： Sam Perry , Richard Bianconi , Yen Shei
发明人： Sam Perry , Richard Bianconi , Yen Shei
IPC分类号： H04L12/56
CPC分类号： H04L69/04 , H04L29/06027 , H04L45/00 , H04L45/50 , H04L65/607 , H04L69/22
摘要： A method, system, and computer-readable medium for transmitting voice over multiprotocol label switching is provided. A packet that includes layer 3 and layer 4 headers is received. A label that identifies a label switched path in the packet is inserted, and a stream identifier is generated. The stream identifier is associated with at least a portion of content of the layer 3 and layer 4 headers. The layer 3 and layer 4 headers are removed from the packet, and the stream identifier is inserted into the packet. Additionally, methods, systems, and a computer-readable medium for processing a voice over multiprotocol label switching frame that excludes layer 3 and layer 4 headers are provided.
摘要翻译：提供了一种用于通过多协议标签交换来发送语音的方法，系统和计算机可读介质。接收包含第3层和第4层标头的数据包。插入标识分组中的标签交换路径的标签，并生成流标识符。流标识符与层3和层4标题的内容的至少一部分相关联。从分组中移除第3层和第4层头，流标识符插入到分组中。另外，提供了排除层3和层4头部的用于处理多协议标签交换帧上的语音的方法，系统和计算机可读介质。

6. 发明申请

US20070019621A1 Systems and methods for voice over multiprotocol label switching 有权
标题翻译：用于语音多协议标签交换的系统和方法
公开(公告)号：US20070019621A1
公开(公告)日：2007-01-25
申请号：US11317278
申请日：2005-12-23
申请人： Sam Perry , Richard Bianconi , Yen Shei
发明人： Sam Perry , Richard Bianconi , Yen Shei
IPC分类号： H04L12/66 , H04L12/28 , H04J3/16 , H04L12/56
CPC分类号： H04L69/04 , H04L29/06027 , H04L45/00 , H04L45/50 , H04L65/607 , H04L69/22
摘要： A method, system, and computer-readable medium for transmitting voice over multiprotocol label switching is provided. A packet that includes layer 3 and layer 4 headers is received. A label that identifies a label switched path in the packet is inserted, and a stream identifier is generated. The stream identifier is associated with at least a portion of content of the layer 3 and layer 4 headers. The layer 3 and layer 4 headers are removed from the packet, and the stream identifier is inserted into the packet. Additionally, methods, systems, and a computer-readable medium for processing a voice over multiprotocol label switching frame that excludes layer 3 and layer 4 headers are provided.
摘要翻译：提供了一种用于通过多协议标签交换来发送语音的方法，系统和计算机可读介质。接收包含第3层和第4层标头的数据包。插入标识分组中的标签交换路径的标签，并生成流标识符。流标识符与层3和层4标题的内容的至少一部分相关联。从分组中移除第3层和第4层头，流标识符插入到分组中。另外，提供了排除层3和层4头部的用于处理多协议标签交换帧上的语音的方法，系统和计算机可读介质。

7. 发明申请

US20060268686A1 Methods, systems, and computer program products for implementing automatic protection switching for media packets transmitted over an ethernet switching fabric 有权
标题翻译：用于实现通过以太网交换结构传输的媒体包的自动保护切换的方法，系统和计算机程序产品
公开(公告)号：US20060268686A1
公开(公告)日：2006-11-30
申请号：US11139019
申请日：2005-05-26
申请人： Yen Shei , David Lu
发明人： Yen Shei , David Lu
IPC分类号： H04L12/26
CPC分类号： H04L49/552 , H04L49/201 , H04L49/206 , H04L49/208 , H04L49/351 , H04L49/354 , H04L49/557
摘要： Methods, systems, and computer program products for implementing automatic protection switching for media packets, such as ATM cells or IP packets that carry media content, in a device that includes an Ethernet switching fabric are disclosed. According to one method, first and second packet network interfaces of the device are configured to function as working and protection APS interfaces. At least one of a media processing resource and an Ethernet switch fabric of the device are configured to replicate egress media packets from the media processing resource to the working and protection APS interfaces. Egress media packets from the media processing resource are forwarded to the working and protection APS interfaces via the switch fabric. Ingress media packets received at the working APS interface are forwarded to the media processing resource via the Ethernet switch fabric. Media packets received at the protection APS interface are discarded.
摘要翻译：公开了在包括以太网交换结构的设备中实现用于媒体分组的自动保护倒换的方法，系统和计算机程序产品，例如携带媒体内容的ATM信元或IP分组。根据一种方法，设备的第一和第二分组网络接口被配置为用作工作和保护APS接口。设备的媒体处理资源和以太网交换结构中的至少一个被配置为将出口媒体分组从媒体处理资源复制到工作和保护APS接口。来自媒体处理资源的出口媒体报文通过交换矩阵转发到工作和保护APS接口。在工作APS接口接收到的入口媒体报文通过以太网交换矩阵转发给媒体处理资源。在保护APS接口处接收的媒体报文被丢弃。

8. 发明申请

US20060077989A1 Methods and systems for packet classification with improved memory utilization in a media gateway 有权
标题翻译：用于分组分类的方法和系统，具有改善媒体网关中的存储器利用率
公开(公告)号：US20060077989A1
公开(公告)日：2006-04-13
申请号：US11031101
申请日：2005-01-07
申请人： David Lu , Yen Shei
发明人： David Lu , Yen Shei
IPC分类号： H04L12/56
CPC分类号： H04L65/104 , H04L29/06027 , H04L65/103 , H04L65/1083 , H04L65/605 , H04L65/80
摘要： Methods and systems for classifying incoming and/or outgoing packets to sessions in a media gateway store session identifiers for active sessions in a media gateway in a memory. Each session identifier is a combination of a local network address, a local port number, a remote network address, and a remote port number for the session. Alternatively, each session identifier is a combination of a local network address and a local port number. An incoming and/or outgoing packet is classified to one of the active sessions by using network address and port number information from the packet to perform a lookup for a corresponding session identifier in the memory.
摘要翻译：用于将传入和/或传出分组分类到媒体网关中的会话的方法和系统存储用于存储器中的媒体网关中的活动会话的会话标识符。每个会话标识符是会话的本地网络地址，本地端口号，远程网络地址和远程端口号的组合。或者，每个会话标识符是本地网络地址和本地端口号的组合。通过使用来自分组的网络地址和端口号信息来将输入和/或输出分组分类为其中一个活动会话，以对存储器中的相应会话标识符执行查找。

9. 发明申请

US20060077963A1 Methods and systems for per-session traffic rate policing in a media gateway 有权
标题翻译：媒体网关中每会话流量速率监管的方法和系统
公开(公告)号：US20060077963A1
公开(公告)日：2006-04-13
申请号：US11032592
申请日：2005-01-10
申请人： San-Qi Li , Yen Shei
发明人： San-Qi Li , Yen Shei
IPC分类号： H04L12/66
CPC分类号： H04L47/10 , H04L29/06027 , H04L41/0893 , H04L41/5009 , H04L41/5087 , H04L47/20 , H04L47/26 , H04L47/32 , H04L49/206 , H04L49/505 , H04L65/103 , H04L65/80
摘要： Methods and systems for per-session traffic rate policing in a media gateway include receiving voice over IP (VoIP) packets at a media gateway where it is determined whether each VoIP packet is associated with an existing VoIP session in the media gateway. A per-session traffic rate policing policy is applied to the packets associated with the existing sessions in the media gateway. In response to determining that a packet violates the per-session traffic rate policing policy, the packet is discarded.
摘要翻译：媒体网关中每会话流速率监管的方法和系统包括在媒体网关处接收IP语音（VoIP）分组，确定每个VoIP分组是否与媒体网关中现有的VoIP会话相关联。每个会话的流量速率监管策略被应用于与媒体网关中的现有会话相关联的分组。响应于确定分组违反每会话流速率监管策略，丢弃该分组。

10. 发明申请

US20060077962A1 Methods and systems for measurement-based call admission control in a media gateway 有权
标题翻译：媒体网关中基于测量的呼叫准入控制的方法和系统
公开(公告)号：US20060077962A1
公开(公告)日：2006-04-13
申请号：US11032562
申请日：2005-01-10
申请人： Ju Wu , Yen Shei , Samuel Perry , Christopher Ouellette
发明人： Ju Wu , Yen Shei , Samuel Perry , Christopher Ouellette
IPC分类号： H04L12/26 , H04L12/66
CPC分类号： H04L12/6418 , H04L29/06027 , H04L65/103 , H04L65/1069 , H04L65/80
摘要： Methods and systems for measurement-based call admission control in a media gateway are disclosed. A request for establishing a new voice-over-IP (VoIP) call for sending and receiving voice over IP packets in a media gateway is received. The request indicates a required bandwidth for the new call. Bandwidth utilization of at least one Internet protocol (IP) network interface for sending and receiving voice over IP packets in the media gateway is determined. The media gateway determines whether to admit the new VoIP call based on the determined requested bandwidth for the new call and the determined bandwidth utilization for at least one of the IP network interfaces.
摘要翻译：公开了媒体网关中基于测量的呼叫准入控制的方法和系统。接收到在媒体网关中建立用于在IP分组上发送和接收语音的新的IP语音（VoIP）呼叫的请求。该请求指示新呼叫所需的带宽。确定至少一个用于在媒体网关中通过IP分组发送和接收语音的因特网协议（IP）网络接口的带宽利用率。媒体网关基于所确定的新呼叫的带宽以及所确定的IP网络接口中的至少一个的带宽利用率来确定是否接纳新的VoIP呼叫。

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