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1. 发明申请

US20190288842A1 TECHNIQUES FOR ENCRYPTION KEY ROLLOVER SYNCHRONIZATION IN A NETWORK 审中-公开
公开(公告)号：US20190288842A1
公开(公告)日：2019-09-19
申请号：US16005990
申请日：2018-06-12
申请人： Cisco Technology, Inc.
发明人： Brian Weis , David M. Carrel , Michael L. Sullenberger
IPC分类号： H04L9/12 , H04L29/06 , H04L9/08
摘要： Techniques are presented for encryption key rollover synchronization in a network. In one embodiment, a method includes generating a new set of public-key encryption keys for a first network element. Based on the new set of public-key encryption keys, a set of new security associations between the first network element and each other network element in the network is generated. The method includes providing a new public key from the new set of public-key encryption keys to a network controller and using security associations associated with a previous set of public-key encryption keys for encrypted communication between the first network element and each other network element. Upon obtaining, from a second network element, traffic protected by a security association from the set of new security associations, the method includes using the new security associations for subsequent encrypted communication between the first network element and the second network element.

2. 发明授权

US10797992B2 Intelligent wide area network (IWAN) 有权
公开(公告)号：US10797992B2
公开(公告)日：2020-10-06
申请号：US14792698
申请日：2015-07-07
申请人： Cisco Technology, Inc.
发明人： Dana L. Blair , Michael L. Sullenberger , Solomon T. Lucas , Steven W. Wood , Anand Oswal
IPC分类号： H04L12/715 , H04L12/46 , H04L12/751 , H04L12/741 , H04L12/24
摘要： In one embodiment, an electronic device maintains one or more tunnel-based overlays for a communication network. The communication network includes two or more physical provider networks. The device maintains a mapping between a particular application and the one or more overlays for the communication network. The device adjusts the mapping between the particular application and the one or more overlays for the communication network. The device causes one or more routers in the communication network to route traffic for the particular application according to the adjusted mapping between the application and the one or more overlays for the communication network.

3. 发明授权

US09729348B2 Tunnel-in-tunnel source address correction 有权
公开(公告)号：US09729348B2
公开(公告)日：2017-08-08
申请号：US14730654
申请日：2015-06-04
申请人： Cisco Technology, Inc.
发明人： Michael L. Sullenberger , Manish Kumar , Eitan Ben-Nun , Anand Oswal
IPC分类号： H04L12/46 , H04L29/12 , H04L12/741 , H04L29/06
CPC分类号： H04L12/4633 , H04L45/50 , H04L45/74 , H04L61/2592 , H04L69/22
摘要： In one embodiment, a device in a network identifies a translated source network address for a tunnel source of a tunnel-in-tunnel packet. The device includes the translated source network address within a header of the packet. The header of the packet identifies an inner tunnel that is encapsulated within an outer tunnel during transmission of the packet within the network. The device sends the packet with the translated source network address within the header of the packet.

4. 发明授权

US09444735B2 Contextual summarization tag and type match using network subnetting 有权
标题翻译：上下文摘要标签和使用网络子网划分的类型匹配
公开(公告)号：US09444735B2
公开(公告)日：2016-09-13
申请号：US14192104
申请日：2014-02-27
申请人： Cisco Technology, Inc.
发明人： Michael L. Sullenberger , Andre Karamanian
IPC分类号： H04L12/28 , H04L12/56 , H04L12/741 , H04L12/24
CPC分类号： H04L45/74 , H04L41/5012 , H04L41/5058
摘要： Techniques are presented herein to distribute the processing of communication to network-connected devices to routing nodes, as opposed to centralizing those operations in one device as in the traditional/classical system. Using a bitmapped Type field, advertisements and queries can be categorized. Also, by using a Subgroup field, the scope of advertisements and queries can be dynamically limited. These techniques reduce the number of matches and make the matches more relevant to the user who sent the query. Routing nodes can be any network element that routes traffic, physical or virtual (cloud-based router or switch). The intelligence to perform these techniques can be embodied as an overlay on top of a physical network.
摘要翻译：这里提供了技术来将通信的处理分配给网络连接的设备到路由节点，而不是像在传统/经典系统中那样将这些操作集中在一个设备中。使用位图类型字段可以对广告和查询进行分类。此外，通过使用子组字段，可以动态地限制广告和查询的范围。这些技术减少了匹配的数量，并使匹配与发送查询的用户更相关。路由节点可以是路由流量，物理或虚拟（基于云的路由器或交换机）的任何网络元素。执行这些技术的智能可以体现为物理网络之上的覆盖。

5. 发明授权

US11290377B2 Intelligent wide area network (IWAN) 有权
公开(公告)号：US11290377B2
公开(公告)日：2022-03-29
申请号：US17017861
申请日：2020-09-11
申请人： Cisco Technology, Inc.
发明人： Dana L. Blair , Michael L. Sullenberger , Solomon T. Lucas , Steven W. Wood , Anand Oswal
IPC分类号： H04L12/715 , H04L45/64 , H04L12/46 , H04L45/02 , H04L45/00 , H04L45/74 , H04L41/5025 , H04L41/50
摘要： In one embodiment, an electronic device maintains one or more tunnel-based overlays for a communication network. The communication network includes two or more physical provider networks. The device maintains a mapping between a particular application and the one or more overlays for the communication network. The device adjusts the mapping between the particular application and the one or more overlays for the communication network. The device causes one or more routers in the communication network to route traffic for the particular application according to the adjusted mapping between the application and the one or more overlays for the communication network.

6. 发明申请

US20160359738A1 TUNNEL-IN-TUNNEL SOURCE ADDRESS CORRECTION 有权
标题翻译：隧道隧道源地址校正
公开(公告)号：US20160359738A1
公开(公告)日：2016-12-08
申请号：US14730654
申请日：2015-06-04
申请人： Cisco Technology, Inc.
发明人： Michael L. Sullenberger , Manish Kumar , Eitan Ben-Nun , Anand Oswal
IPC分类号： H04L12/741 , H04L12/46 , H04L29/06
CPC分类号： H04L12/4633 , H04L45/50 , H04L45/74 , H04L61/2592 , H04L69/22
摘要： In one embodiment, a device in a network identifies a translated source network address for a tunnel source of a tunnel-in-tunnel packet. The device includes the translated source network address within a header of the packet. The header of the packet identifies an inner tunnel that is encapsulated within an outer tunnel during transmission of the packet within the network. The device sends the packet with the translated source network address within the header of the packet.
摘要翻译：在一个实施例中，网络中的设备识别隧道隧道分组的隧道源的转换的源网络地址。该设备包括分组报头内的经翻译的源网络地址。分组的报头标识在网络内的分组传输期间封装在外部隧道内的内部隧道。设备将数据包的转发源地址发送到数据包的头部。

7. 发明申请

US20220255859A1 INTELLIGENT WIDE AREA NETWORK (IWAN) 有权
公开(公告)号：US20220255859A1
公开(公告)日：2022-08-11
申请号：US17698042
申请日：2022-03-18
申请人： Cisco Technology, Inc.
发明人： Dana L. Blair , Michael L. Sullenberger , Solomon T. Lucas , Steven W. Wood , Anand Oswal
IPC分类号： H04L45/64 , H04L12/46 , H04L45/02 , H04L45/00 , H04L45/74
摘要： In one embodiment, an electronic device maintains one or more tunnel-based overlays for a communication network. The communication network includes two or more physical provider networks. The device maintains a mapping between a particular application and the one or more overlays for the communication network. The device adjusts the mapping between the particular application and the one or more overlays for the communication network. The device causes one or more routers in the communication network to route traffic for the particular application according to the adjusted mapping between the application and the one or more overlays for the communication network.

8. 发明授权

US10904217B2 Encryption for gateway tunnel-based VPNs independent of wan transport addresses 有权
公开(公告)号：US10904217B2
公开(公告)日：2021-01-26
申请号：US15994590
申请日：2018-05-31
申请人： Cisco Technology, Inc.
发明人： Michael L. Sullenberger , Brian Weis , Warren Scott Wainner , Shuxian Lou
IPC分类号： H04L29/00 , H04L29/06 , H04L9/08
摘要： A source virtual private network (VPN) gateway supports a local source subnet and communicates over a wide area network (WAN) with a destination VPN gateway that supports a local destination subnet. The source VPN gateway receives from the local source subnet an Internet Protocol (IP) packet destined for the local destination subnet, determines a security association (SA) based on a source IP address and a destination IP address of the IP packet, and encapsulates the IP packet with tunnel encapsulation including a tunnel protocol header and a tunnel outer IP header, to produce a clear-text tunnel packet. The source VPN gateway encrypts the IP packet and the tunnel protocol header but not the tunnel outer IP header using an encryption key and a security parameter index for the SA, to produce an encrypted tunnel packet, and tunnels it to the destination VPN gateway over the WAN.

9. 发明申请

US20170012870A1 INTELLIGENT WIDE AREA NETWORK (IWAN) 审中-公开
标题翻译：智能宽域网（IWAN）
公开(公告)号：US20170012870A1
公开(公告)日：2017-01-12
申请号：US14792698
申请日：2015-07-07
申请人： Cisco Technology, Inc.
发明人： Dana L. Blair , Michael L. Sullenberger , Solomon T. Lucas , Steven W. Wood , Anand Oswal
IPC分类号： H04L12/715 , H04L12/741 , H04L12/751 , H04L12/46
摘要： In one embodiment, an electronic device maintains one or more tunnel-based overlays for a communication network. The communication network includes two or more physical provider networks. The device maintains a mapping between a particular application and the one or more overlays for the communication network. The device adjusts the mapping between the particular application and the one or more overlays for the communication network. The device causes one or more routers in the communication network to route traffic for the particular application according to the adjusted mapping between the application and the one or more overlays for the communication network.
摘要翻译：在一个实施例中，电子设备维护用于通信网络的一个或多个基于隧道的覆盖。通信网络包括两个或多个物理提供商网络。设备维护特定应用与通信网络的一个或多个覆盖层之间的映射。该设备调整特定应用与通信网络的一个或多个覆盖层之间的映射。该设备使通信网络中的一个或多个路由器根据应用与通信网络的一个或多个覆盖之间的调整的映射来路由特定应用的流量。

10. 发明申请

US20150244613A1 Contextual Summarization Tag And Type Match Using Network Subnetting 有权
标题翻译：使用网络子网划分上下文总结标签和类型匹配
公开(公告)号：US20150244613A1
公开(公告)日：2015-08-27
申请号：US14192104
申请日：2014-02-27
申请人： Cisco Technology, Inc.
发明人： Michael L. Sullenberger , Andre Karamanian
IPC分类号： H04L12/721
CPC分类号： H04L45/74 , H04L41/5012 , H04L41/5058
摘要： Techniques are presented herein to distribute the processing of communication to network-connected devices to routing nodes, as opposed to centralizing those operations in one device as in the traditional/classical system. Using a bitmapped Type field, advertisements and queries can be categorized. Also, by using a Subgroup field, the scope of advertisements and queries can be dynamically limited. These techniques reduce the number of matches and make the matches more relevant to the user who sent the query. Routing nodes can be any network element that routes traffic, physical or virtual (cloud-based router or switch). The intelligence to perform these techniques can be embodied as an overlay on top of a physical network.
摘要翻译：这里提供了技术来将通信的处理分配给网络连接的设备到路由节点，而不是像在传统/经典系统中那样将这些操作集中在一个设备中。使用位图类型字段可以对广告和查询进行分类。此外，通过使用子组字段，可以动态地限制广告和查询的范围。这些技术减少了匹配的数量，并使匹配与发送查询的用户更相关。路由节点可以是路由流量，物理或虚拟（基于云的路由器或交换机）的任何网络元素。执行这些技术的智能可以体现为物理网络之上的覆盖。

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