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1. 发明授权

US09036466B2 Methods and apparatus for improving network communication using ethernet switching protection 有权
标题翻译：使用以太网交换机保护改善网络通信的方法和装置
公开(公告)号：US09036466B2
公开(公告)日：2015-05-19
申请号：US14146519
申请日：2014-01-02
申请人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
发明人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
IPC分类号： H04L12/26 , H04L12/707 , H04L12/703
CPC分类号： H04L43/0811 , H04L43/10 , H04L45/22 , H04L45/28
摘要： A network layout between network elements and routers using network redundancy to improve reliability of network communication is disclosed. Upon detecting a link failure associated with a primary link between an access switch and a primary router by the access switch via a connectivity verification protocol, the access switch sends a message to the primary router indicating connection defect via the connectivity verification protocol such as IEEE 802.1ag standard. After enabling protection switching mechanism to activate a secondary link between the access switch and a backup router for network communication, routing data streams are routed between the access switch and the router via the secondary link. In one aspect, the protection switching mechanism is operated in accordance with G.8031 under International Telecommunication Union (“ITU”) standard.
摘要翻译：公开了使用网络冗余的网元和路由器之间的网络布局，以提高网络通信的可靠性。经由连接验证协议检测到接入交换机与主路由器之间的主链路相关联的链路故障，接入交换机通过诸如IEEE802.11之类的连通性验证协议向主路由器发送指示连接缺陷的消息标准。启用保护切换机制，激活接入交换机与备份路由器之间的二级链路进行网络通信，路由数据流通过辅助链路在接入交换机和路由器之间路由。一方面，保护切换机制根据国际电信联盟（“ITU”）标准的G.8031进行操作。

2. 发明申请

US20120182862A1 Method and Apparatus for Improving Data Integrity During a Router Recovery Process 有权
标题翻译：在路由器恢复过程中提高数据完整性的方法和装置
公开(公告)号：US20120182862A1
公开(公告)日：2012-07-19
申请号：US13168757
申请日：2011-06-24
申请人： Sasha Cirkovic
发明人： Sasha Cirkovic
IPC分类号： H04L12/24 , H04L12/56
CPC分类号： H04L45/66 , H04L41/0654 , H04L41/12 , H04L45/28 , H04L45/50 , H04L45/586
摘要： An apparatus and method for enhancing data integrity during router recovery using dual-homed host configuration are disclosed. A process of routing resumption, in one embodiment, is able to recover or reset a network element (“NE”) such as a primary router from system failure. A first link configured to transmit data packets between the NE and a network device is reestablished. Upon reestablishing a second link configured to transmit data packets between the NE and other NEs, a network discovery process utilizing network reachability protocol is initiated to identify routing paths associated with the NE. A routing table in the NE is updated in accordance with the routing paths. A ready message is issued from the NE to the network device when the routing table is at least partially completed.
摘要翻译：公开了一种用于在使用双归属主机配置的路由器恢复期间增强数据完整性的装置和方法。在一个实施例中，路由恢复的过程能够从系统故障恢复或重置诸如主路由器的网元（“NE”）。重新建立了在NE和网络设备之间传输数据包的第一个链路。在重建建立在NE和其他网元之间传输数据包的第二链路时，启动利用网络可达性协议的网络发现过程，以识别与NE相关联的路由路径。 NE中的路由表根据路由路径进行更新。当路由表至少部分完成时，从NE向网络设备发出就绪消息。

3. 发明申请

US20140056122A1 PROCEDURES, APPARATUSES, SYSTEMS, AND COMPUTER-READABLE MEDIA FOR OPERATING PRIMARY AND BACKUP NETWORK ELEMENTS 有权
标题翻译：程序，设备，系统和用于操作主备和网络元件的计算机可读介质
公开(公告)号：US20140056122A1
公开(公告)日：2014-02-27
申请号：US13594156
申请日：2012-08-24
申请人： Pawan K. Singal , Sasha Cirkovic , Chirayu Shah
发明人： Pawan K. Singal , Sasha Cirkovic , Chirayu Shah
IPC分类号： H04L12/24
CPC分类号： H04L41/0668 , H04L45/28
摘要： Procedures, apparatuses, systems, and computer-readable media for operating primary and backup network elements (NEs). The procedure for operating the primary NE includes determining a failure in a primary path in which the primary NE is interposed. A switch-over notification message is provided via an inter-chassis communication link to a backup NE. At least one status synchronization message is communicated with at least one of the backup NE via the inter-chassis communication link and a head-end NE in accordance with a standardized protection switching protocol. The procedure for operating the backup NE includes receiving the switch-over notification message, indicating failure in a primary path, via the inter-chassis communication link. A status synchronization message is provided in accordance with the standardized protection switching protocol to a head-end NE to establish communication with the head-end NE via a secondary path.
摘要翻译：用于操作主要和备用网元（NE）的程序，设备，系统和计算机可读介质。用于操作主要NE的过程包括确定主NE被插入的主路径中的故障。通过机箱间通信链路向备用网元提供切换通知消息。根据标准化的保护倒换协议，至少一个状态同步消息经由机箱间通信链路和前端网元与备用网元中的至少一个通信。操作备用网元的过程包括经由机箱间通信链路接收切换通知消息，指示主路径中的故障。根据标准化的保护交换协议向前端网元提供状态同步消息，以通过辅助路径建立与前端网元的通信。

4. 发明申请

US20130016606A1 METHODS AND APPARATUS FOR IMPROVING NETWORK COMMUNICATION USING ETHERNET SWITCHING PROTECTION 有权
标题翻译：使用以太网切换保护来改善网络通信的方法和装置
公开(公告)号：US20130016606A1
公开(公告)日：2013-01-17
申请号：US13180864
申请日：2011-07-12
申请人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
发明人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
IPC分类号： H04L12/26
CPC分类号： H04L43/0811 , H04L43/10 , H04L45/22 , H04L45/28
摘要： A network layout between network elements and routers using network redundancy to improve reliability of network communication is disclosed. Upon detecting a link failure associated with a primary link between an access switch and a primary router by the access switch via a connectivity verification protocol, the access switch sends a message to the primary router indicating connection defect via the connectivity verification protocol such as IEEE 802.1 ag standard. After enabling protection switching mechanism to activate a secondary link between the access switch and a backup router for network communication, routing data streams are routed between the access switch and the router via the secondary link. In one aspect, the protection switching mechanism is operated in accordance with G.8031 under International Telecommunication Union (“ITU”) standard.
摘要翻译：公开了使用网络冗余的网元和路由器之间的网络布局，以提高网络通信的可靠性。经由连接验证协议检测到接入交换机与主路由器之间的主链路相关联的链路故障，接入交换机通过诸如IEEE802.11之类的连通性验证协议向主路由器发送指示连接缺陷的消息标准。启用保护切换机制，激活接入交换机与备份路由器之间的二级链路进行网络通信，路由数据流通过辅助链路在接入交换机和路由器之间路由。一方面，保护切换机制根据国际电信联盟（ITU）标准的G.8031进行操作。

5. 发明授权

US09479522B1 Method and apparatus for managing content distribution using content signatures 有权
标题翻译：使用内容签名管理内容分发的方法和装置
公开(公告)号：US09479522B1
公开(公告)日：2016-10-25
申请号：US13102953
申请日：2011-05-06
申请人： Sasha Cirkovic
发明人： Sasha Cirkovic
IPC分类号： G06F15/173 , H04L29/06
CPC分类号： H04L63/1416 , H04L63/0236 , H04L63/123
摘要： A method and apparatus for managing packet flow based on content signatures are disclosed. A process of netflow management, in one embodiment, is able to receive a packet flow traveling through a communications network and obtain a signature from the packet flow. Upon retrieving a predefined signature from storage in accordance with the signature, the signature and the predefined signature are compared. A message of unauthorized distribution associated with the packet flow is issued when bit pattern of the signature matches with bit pattern of the predefined signature.
摘要翻译：公开了一种基于内容签名来管理数据包流的方法和装置。在一个实施例中，净流管理的过程能够接收通过通信网络传播的分组流并且从分组流中获得签名。在根据签名从存储检索预定义的签名时，比较签名和预定义的签名。当签名的位模式与预定义签名的位模式匹配时，发出与分组流相关联的未授权分配的消息。

6. 发明授权

US08675479B2 Methods and apparatus for improving network communication using ethernet switching protection 有权
标题翻译：使用以太网交换机保护改善网络通信的方法和装置
公开(公告)号：US08675479B2
公开(公告)日：2014-03-18
申请号：US13180864
申请日：2011-07-12
申请人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
发明人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
IPC分类号： G01R31/08 , G06F11/00
CPC分类号： H04L43/0811 , H04L43/10 , H04L45/22 , H04L45/28
摘要： A network layout between network elements and routers using network redundancy to improve reliability of network communication is disclosed. Upon detecting a link failure associated with a primary link between an access switch and a primary router by the access switch via a connectivity verification protocol, the access switch sends a message to the primary router indicating connection defect via the connectivity verification protocol such as IEEE 802.1 ag standard. After enabling protection switching mechanism to activate a secondary link between the access switch and a backup router for network communication, routing data streams are routed between the access switch and the router via the secondary link. In one aspect, the protection switching mechanism is operated in accordance with G.8031 under International Telecommunication Union (“ITU”) standard.
摘要翻译：公开了使用网络冗余的网元和路由器之间的网络布局，以提高网络通信的可靠性。经由连接验证协议检测到接入交换机与主路由器之间的主链路相关联的链路故障，接入交换机通过诸如IEEE802.11之类的连通性验证协议向主路由器发送指示连接缺陷的消息标准。启用保护切换机制，激活接入交换机与备份路由器之间的二级链路进行网络通信，路由数据流通过辅助链路在接入交换机和路由器之间路由。一方面，保护切换机制根据国际电信联盟（“ITU”）标准的G.8031进行操作。

7. 发明申请

US20110242968A1 Method and Apparatus for Improving Network Communication Using BFD and VRRP Tracking System 审中-公开
标题翻译：使用BFD和VRRP跟踪系统改善网络通信的方法和装置
公开(公告)号：US20110242968A1
公开(公告)日：2011-10-06
申请号：US13159286
申请日：2011-06-13
申请人： Sasha Cirkovic , Chirayu A. Shah , Balaji Rajagopalan , Anuradha Karuppiah
发明人： Sasha Cirkovic , Chirayu A. Shah , Balaji Rajagopalan , Anuradha Karuppiah
IPC分类号： G06F11/00
CPC分类号： H04L45/28 , H04L43/0811 , H04L45/00 , H04L45/22 , H04L45/30 , H04W40/12
摘要： An apparatus and method of a network system between a host and a group of routers using virtual router redundancy protocol (“VRRP”) messages and bidirectional forwarding detection (“BFD”) sessions are disclosed. The network system is capable of facilitating a first communication between a host and a master router of multiple VRRP routers and establishing a BFD session between the host and the master router. When the BFD session fails, the priority of the master router is subsequently lowered and a backup router is activated. In one embodiment, the backup router capable of performing functions of the master router becomes a new master until the BFD session resumes.
摘要翻译：公开了使用虚拟路由器冗余协议（“VRRP”）消息和双向转发检测（“BFD”）会话的主机与一组路由器之间的网络系统的装置和方法。该网络系统能够促进多台VRRP路由器的主机与主路由器之间的第一次通信，并在主机与主路由器之间建立BFD会话。当BFD会话失败时，主路由器的优先级随后降低，备份路由器被激活。在一个实施例中，能够执行主路由器的功能的备份路由器在BFD会话恢复之前成为新主机。

8. 发明授权

US09288140B2 Multichassis failover and recovery for MLPPP wireless backhaul 有权
标题翻译： MLPPP无线回程的多机架故障切换和恢复
公开(公告)号：US09288140B2
公开(公告)日：2016-03-15
申请号：US13544723
申请日：2012-07-09
申请人： Chirayu A. Shah , Sasha Cirkovic
发明人： Chirayu A. Shah , Sasha Cirkovic
IPC分类号： H04L12/703 , H04L12/775 , H04L12/707
CPC分类号： H04L45/28 , H04L45/24 , H04L45/58
摘要： A procedure, and an apparatus, system and computer program that operate in accordance with the procedure, for operating a dual homed communications network. In the procedure, a backup aggregation n ode is configured in accordance with a configuration of a primary multi-service router. A failure is detected in a first communication path that includes a primary multi-service router. In response to the detection, a second, backup communication path is activated that includes a backup multi-service router. In response to the activation, a router is negotiated with so that traffic forwarded by the router is provided to the second, backup communication path instead of the first communication path.
摘要翻译：根据该过程操作以用于操作双重归属通信网络的过程以及装置，系统和计算机程序。在该过程中，根据主要多业务路由器的配置配置备份聚合。在包括主多业务路由器的第一通信路径中检测到故障。响应于检测，第二备份通信路径被激活，其包括备份多业务路由器。响应于激活，路由器被协商，使得由路由器转发的流量被提供给第二备用通信路径而不是第一通信路径。

9. 发明授权

US09059902B2 Procedures, apparatuses, systems, and computer-readable media for operating primary and backup network elements 有权
标题翻译：用于操作主要和备用网络元件的程序，设备，系统和计算机可读介质
公开(公告)号：US09059902B2
公开(公告)日：2015-06-16
申请号：US13594156
申请日：2012-08-24
申请人： Pawan K. Singal , Sasha Cirkovic , Chirayu Shah
发明人： Pawan K. Singal , Sasha Cirkovic , Chirayu Shah
IPC分类号： H04L12/24 , H04L12/703
CPC分类号： H04L41/0668 , H04L45/28
摘要： Procedures, apparatuses, systems, and computer-readable media for operating primary and backup network elements (NEs). The procedure for operating the primary NE includes determining a failure in a primary path in which the primary NE is interposed. A switch-over notification message is provided via an inter-chassis communication link to a backup NE. At least one status synchronization message is communicated with at least one of the backup NE via the inter-chassis communication link and a head-end NE in accordance with a standardized protection switching protocol. The procedure for operating the backup NE includes receiving the switch-over notification message, indicating failure in a primary path, via the inter-chassis communication link. A status synchronization message is provided in accordance with the standardized protection switching protocol to a head-end NE to establish communication with the head-end NE via a secondary path.
摘要翻译：用于操作主要和备用网元（NE）的程序，设备，系统和计算机可读介质。用于操作主要NE的过程包括确定主NE被插入的主路径中的故障。通过机箱间通信链路向备用网元提供切换通知消息。根据标准化的保护倒换协议，至少一个状态同步消息经由机箱间通信链路和前端网元与备用网元中的至少一个通信。操作备用网元的过程包括经由机箱间通信链路接收切换通知消息，指示主路径中的故障。根据标准化的保护交换协议向前端网元提供状态同步消息，以通过辅助路径建立与前端网元的通信。

10. 发明申请

US20140119176A1 Methods and Apparatus for Improving Network Communication Using Ethernet Switching Protection 有权
标题翻译：使用以太网交换保护改进网络通信的方法和装置
公开(公告)号：US20140119176A1
公开(公告)日：2014-05-01
申请号：US14146519
申请日：2014-01-02
申请人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
发明人： Sasha Cirkovic , Pawan K. Singal , Gowri Kuthanur
IPC分类号： H04L12/26 , H04L12/703 , H04L12/707
CPC分类号： H04L43/0811 , H04L43/10 , H04L45/22 , H04L45/28
摘要： A network layout between network elements and routers using network redundancy to improve reliability of network communication is disclosed. Upon detecting a link failure associated with a primary link between an access switch and a primary router by the access switch via a connectivity verification protocol, the access switch sends a message to the primary router indicating connection defect via the connectivity verification protocol such as IEEE 802.1ag standard. After enabling protection switching mechanism to activate a secondary link between the access switch and a backup router for network communication, routing data streams are routed between the access switch and the router via the secondary link. In one aspect, the protection switching mechanism is operated in accordance with G.8031 under International Telecommunication Union (“ITU”) standard.
摘要翻译：公开了使用网络冗余的网元和路由器之间的网络布局，以提高网络通信的可靠性。经由连接验证协议检测到接入交换机与主路由器之间的主链路相关联的链路故障，接入交换机通过诸如IEEE802.11之类的连通性验证协议向主路由器发送指示连接缺陷的消息标准。启用保护切换机制，激活接入交换机与备份路由器之间的二级链路进行网络通信，路由数据流通过辅助链路在接入交换机和路由器之间路由。一方面，保护切换机制根据国际电信联盟（“ITU”）标准的G.8031进行操作。

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