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1. 发明授权

US09137101B2 Multi-layer network diagnostic tracing 有权
标题翻译：多层网络诊断跟踪
公开(公告)号：US09137101B2
公开(公告)日：2015-09-15
申请号：US13303615
申请日：2011-11-23
申请人： Srikanth Keesara , David E. Frattura , Deborah E. Fitzgerald , Christopher Monti
发明人： Srikanth Keesara , David E. Frattura , Deborah E. Fitzgerald , Christopher Monti
IPC分类号： G01R31/08 , H04L12/24 , H04L12/26 , H04L12/721
CPC分类号： H04L41/0677 , H04L43/0811 , H04L43/10 , H04L45/70
摘要： A network management and monitoring application employs diagnostic messages for confirming network path connectivity and identifying and locating connectivity faults. Diagnostic messages similar to conventional “ping” and “traceroute” messages traverse the network along a prescribed path for which diagnostic feedback is desired. The application receives and analyzes return messages sent from network entities along the path to ascertain connectivity issues on the path. The application receives layer 3 identifiers such as IP addresses, however performs diagnostic operations such as continuity checks based on layer 2 identifiers such as MAC (Media Access Control) identifiers because certain network entities operate on L2 identifiers and would otherwise evade a continuity check based on layer 3 identifiers. The monitoring application therefore performs continuity diagnostics such as ping and traceroute operations using L2 identifiers, therefore pinpointing problems with an L2 network forwarding entity such as a bridge that lies between L3 entities such as routers.
摘要翻译：网络管理和监控应用程序使用诊断消息来确认网络路径连通性，并识别和定位连接故障。类似于常规“ping”和“traceroute”消息的诊断消息沿着期望诊断反馈的规定路径穿越网络。应用程序接收并分析从网络实体沿路径发送的返回消息，以确定路径上的连接问题。应用程序接收诸如IP地址的层3标识符，然而执行诊断操作，例如基于诸如MAC（媒体访问控制）标识符的第2层标识符的连续性检查，因为某些网络实体在L2标识符上操作，否则将基于第3层标识符。因此，监视应用程序使用L2标识符来执行诸如ping和traceroute操作之类的连续性诊断，因此确定了L2网络转发实体（例如位于诸如路由器的L3实体之间的网桥）的问题。

2. 发明申请

US20130128751A1 MULTI-LAYER NETWORK DIAGNOSTIC TRACING 有权
标题翻译：多层网络诊断跟踪
公开(公告)号：US20130128751A1
公开(公告)日：2013-05-23
申请号：US13303615
申请日：2011-11-23
申请人： Srikanth Keesara , David E. Frattura , Deborah E. Fitzgerald , Christopher Monti
发明人： Srikanth Keesara , David E. Frattura , Deborah E. Fitzgerald , Christopher Monti
IPC分类号： H04L12/26
CPC分类号： H04L41/0677 , H04L43/0811 , H04L43/10 , H04L45/70
摘要： A network management and monitoring application employs diagnostic messages for confirming network path connectivity and identifying and locating connectivity faults. Diagnostic messages similar to conventional “ping” and “traceroute” messages traverse the network along a prescribed path for which diagnostic feedback is desired. The application receives and analyzes return messages sent from network entities along the path to ascertain connectivity issues on the path. The application receives layer 3 identifiers such as IP addresses, however performs diagnostic operations such as continuity checks based on layer 2 identifiers such as MAC (Media Access Control) identifiers because certain network entities operate on L2 identifiers and would otherwise evade a continuity check based on layer 3 identifiers. The monitoring application therefore performs continuity diagnostics such as ping and traceroute operations using L2 identifiers, therefore pinpointing problems with an L2 network forwarding entity such as a bridge that lies between L3 entities such as routers.
摘要翻译：网络管理和监控应用程序使用诊断消息来确认网络路径连通性，并识别和定位连接故障。类似于常规“ping”和“traceroute”消息的诊断消息沿着期望诊断反馈的规定路径穿越网络。应用程序接收并分析从网络实体沿路径发送的返回消息，以确定路径上的连接问题。应用程序接收诸如IP地址的层3标识符，然而执行诊断操作，例如基于诸如MAC（媒体访问控制）标识符的第2层标识符的连续性检查，因为某些网络实体操作在L2标识符上，否则将基于第3层标识符。因此，监视应用程序使用L2标识符来执行诸如ping和traceroute操作之类的连续性诊断，因此确定了L2网络转发实体（例如位于诸如路由器的L3实体之间的网桥）的问题。

3. 发明申请

US20120113817A1 Multicast Network Diagnostics 有权
标题翻译：组播网络诊断
公开(公告)号：US20120113817A1
公开(公告)日：2012-05-10
申请号：US13271421
申请日：2011-10-12
申请人： Deborah E. Fitzgerald , Srikanth Keesara
发明人： Deborah E. Fitzgerald , Srikanth Keesara
IPC分类号： H04L12/26
CPC分类号： H04L41/12 , H04L43/10
摘要： A Shortest Path Bridging (SPB) network provides a multicast traceroute using network identifiers such as IP addresses for the source and destination (multicast group). The network identifiers, which are based on layer 3 (IP) designations of the traced multicast group, are mapped to a network identifier of the multicast group (corresponding to a layer 2, or MAC address) and an associated Virtual Local Area Network (VLAN) which is used to transport the packets belonging to the multicast flow. Therefore, an operator issuing the traceroute command need not be familiar with the layer 2 concepts of the network, but rather need only supply the layer 3 (IP address) designations of the concerned entities.15
摘要翻译：最短路径桥接（SPB）网络使用诸如源和目的地（组播组）的IP地址等网络标识符来提供组播跟踪路由。基于跟踪的组播组的第3层（IP）指定的网络标识符被映射到组播组的网络标识符（对应于第2层或MAC地址）和相关联的虚拟局域网（VLAN）），用于传输属于多播流的数据包。因此，发布traceroute命令的运营商不需要熟悉网络的第2层概念，而只需要提供相关实体的第3层（IP地址）名称。 15

4. 发明申请

US20130077624A1 CONVEYING THE VLAN/L2 VSN/BRIDGING-DOMAIN OF THE INCOMING INTERFACE (IIF) WHEN TRANSPORTING MULTICAST TRAFFIC OVER A SHORTEST PATH BRIDGED (SPB) NETWORK 有权
标题翻译：当运输跨越最短路径（SPB）网络的多媒体业务时，传输入局接口（IIF）的VLAN / L2 VSN / BRIDGING-DOMAIN
公开(公告)号：US20130077624A1
公开(公告)日：2013-03-28
申请号：US13241869
申请日：2011-09-23
申请人： Srikanth Keesara , Richard T. Strong , Deborah E. Fitzgerald
发明人： Srikanth Keesara , Richard T. Strong , Deborah E. Fitzgerald
IPC分类号： H04L12/56
CPC分类号： H04L12/4662 , H04L12/4633
摘要： Techniques disclosed herein include systems and methods for improving multicast traffic operations in a Shortest Path Bridging (SPB) network by conveying bridging domain information of an incoming interface (IIF) when transporting multicast traffic over the SPB network. Techniques disclosed herein include modifying encapsulation packet header information of existing Mac-In-Mac fields to convey additional information that can be interpreted at edge nodes by modifying edge node interpretation of multicast data. Specifically, the value of the I-SID in the BMAC-DA field can be set to be different from the I-SID value in the I-TAG field. Carrying the L2 VSN I-SID value in the I-TAG allows the Egress BEBs to determine which VLAN/L2 VSN/Bridging-Domain of the IIF is in use, and then modify or preserve underlying header information accordingly.
摘要翻译：本文公开的技术包括当通过SPB网络传输多播流量时，通过传送输入接口（IIF）的桥接域信息来改善最短路径桥接（SPB）网络中的多播业务操作的系统和方法。本文公开的技术包括修改现有Mac-In-Mac字段的封装分组报头信息，以传送可以通过修改多播数据的边缘节点解释来在边缘节点处解释的附加信息。具体地说，BMAC-DA字段中的I-SID的值可以被设置为与I-TAG字段中的I-SID值不同。在I-TAG中携带L2 VSN I-SID值允许出口BEB确定IIF的哪个VLAN / L2 VSN /桥接域正在使用，然后相应地修改或保留底层头信息。

5. 发明授权

US09300540B2 Multicast network diagnostics 有权
标题翻译：组播网络诊断
公开(公告)号：US09300540B2
公开(公告)日：2016-03-29
申请号：US13271421
申请日：2011-10-12
申请人： Deborah E. Fitzgerald , Srikanth Keesara
发明人： Deborah E. Fitzgerald , Srikanth Keesara
IPC分类号： H04L12/28 , H04L12/56 , G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , H04L12/24
CPC分类号： H04L41/12 , H04L43/10
摘要： A Shortest Path Bridging (SPB) network provides a multicast traceroute using network identifiers such as IP addresses for the source and destination (multicast group). The network identifiers, which are based on layer 3 (IP) designations of the traced multicast group, are mapped to a network identifier of the multicast group (corresponding to a layer 2, or MAC address) and an associated Virtual Local Area Network (VLAN) which is used to transport the packets belonging to the multicast flow. Therefore, an operator issuing the traceroute command need not be familiar with the layer 2 concepts of the network, but rather need only supply the layer 3 (IP address) designations of the concerned entities.
摘要翻译：最短路径桥接（SPB）网络使用诸如源和目的地（组播组）的IP地址等网络标识符来提供组播跟踪路由。基于跟踪的组播组的第3层（IP）指定的网络标识符被映射到组播组的网络标识符（对应于第2层或MAC地址）和相关联的虚拟局域网（VLAN）），用于传输属于多播流的数据包。因此，发布traceroute命令的运营商不需要熟悉网络的第2层概念，而只需要提供相关实体的第3层（IP地址）名称。

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