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    Optimizing return traffic paths using network address translation
    13.
    发明授权
    Optimizing return traffic paths using network address translation 有权
    使用网络地址转换优化返回流量路径

    公开(公告)号：US09154541B2

    公开(公告)日：2015-10-06

    申请号：US13861210

    申请日：2013-04-11

    Applicant: Cisco Technology, Inc.

    Inventor： Vamsidhar Valluri ,  Anantha Ramaiah ,  Kaushik Biswas

    IPC: H04L12/28 ,  H04L29/08 ,  H04L12/66

    CPC classification number: H04L67/02 ,  H04L12/66

    Abstract: In one embodiment, an apparatus comprises logic for optimizing return traffic paths using network address translation (NAT). The logic is operable to receive outbound data from a source node in a source network, and to replace a source address in a source address field in the outbound data with a first address from a first address pool associated with a first connection. The logic is operable to determine that return traffic on the first connection needs to be switched over to a second connection, where a second address pool is associated with the second connection. The logic is operable to generate a mapping that associates the first address with a second address from the second address pool and, based on the mapping, to replace the first address in the source address field in the outbound data with the second address. The logic is also operable to send the outbound data to the destination node over the second connection.

    Abstract translation: 在一个实施例中，装置包括用于使用网络地址转换（NAT）来优化返回业务路径的逻辑。 该逻辑可操作以从源网络中的源节点接收出站数据，并且使用来自与第一连接相关联的第一地址池的第一地址来替换出站数据中的源地址字段中的源地址。 逻辑可操作以确定第一连接上的返回流量需要切换到第二连接，其中第二地址池与第二连接相关联。 逻辑可操作以生成将第一地址与来自第二地址池的第二地址相关联的映射，并且基于该映射，以用第二地址替换出站数据中的源地址字段中的第一地址。 该逻辑还可用于通过第二连接将出站数据发送到目的地节点。

    METHOD AND APPARATUS FOR ROUTE OPTIMIZATION ENFORCEMENT AND VERIFICATION
    14.
    发明申请
    METHOD AND APPARATUS FOR ROUTE OPTIMIZATION ENFORCEMENT AND VERIFICATION 有权
    用于路由优化执行和验证的方法和装置

    公开(公告)号：US20130258852A1

    公开(公告)日：2013-10-03

    申请号：US13901833

    申请日：2013-05-24

    Applicant: Cisco Technology, Inc.

    Inventor： Vamsidhar Valluri ,  Kerry Lynn ,  Martin Djernaes ,  Dana Blair

    IPC: H04L12/70

    CPC classification number: H04L47/122 ,  G01V1/28 ,  H04L29/06027 ,  H04L41/00 ,  H04L41/0213 ,  H04L41/0866 ,  H04L45/00 ,  H04L45/02 ,  H04L45/04 ,  H04L45/12 ,  H04L45/123 ,  H04L45/125 ,  H04L45/70 ,  H04L47/125

    Abstract: In one embodiment, a best exit from an autonomous system (AS) for a controlled prefix is determined. A network device of the AS influences a route for the controlled prefix to be over the best exit. Traffic statistics for the controlled prefix are selected. The network device verifies, based on the traffic statistics, whether the influence has caused at least a configured amount of traffic for the controlled prefix to be over the best exit. When at least the configured amount of the traffic is not directed over the best exit, the network device further influences the route for the controlled prefix to be over the best exit.

    Abstract translation: 在一个实施例中，确定用于受控前缀的自治系统（AS）的最佳出口。 AS的网络设备影响受控前缀的路由超过最佳出口。 选择受控前缀的流量统计信息。 网络设备基于流量统计来验证受影响的至少一个配置的受控前缀流量是否超过最佳出口。 当至少配置的流量的数量不指向最佳出口时，网络设备进一步影响受控前缀的路由超过最佳出口。

    SYNERGISTIC DNS SECURITY UPDATE
    16.
    发明申请
    SYNERGISTIC DNS SECURITY UPDATE 有权

    公开(公告)号：US20220377089A1

    公开(公告)日：2022-11-24

    申请号：US17817724

    申请日：2022-08-05

    Applicant: Cisco Technology, Inc.

    Inventor： Vamsidhar Valluri ,  Vinay Prabhu ,  Sarah Adelaide Evans ,  Suraj Rangaswamy

    IPC: H04L9/40 ,  H04L45/00 ,  H04L61/4511

    Abstract: Systems and methods provide for synergistic domain name system DNS security updates for an enterprise network operating under a Software Defined Wide Area Network (SD-WAN). A system may be configured to collect positive and/or negative unified threat defense (UTD) results, deploy a rules-based model that, when a threat or clearance is detected across several SD-WAN edge network devices, triggers an update to a local security blacklist/whitelist, wherein the update comprises a signature, and push the update to other devices that have not yet seen the threat or clearance.

    Synergistic DNS security update
    18.
    发明授权
    Synergistic DNS security update 有权

    公开(公告)号：US11411967B2

    公开(公告)日：2022-08-09

    申请号：US16567435

    申请日：2019-09-11

    Applicant: Cisco Technology, Inc.

    Inventor： Vamsidhar Valluri ,  Vinay Prabhu ,  Sarah Adelaide Evans ,  Suraj Rangaswamy

    IPC: G06F15/173 ,  H04L9/40 ,  H04L61/4511 ,  H04L45/00

    Abstract: Systems and methods provide for synergistic domain name system DNS security updates for an enterprise network operating under a Software Defined Wide Area Network (SD-WAN). A system may be configured to collect positive and/or negative unified threat defense (UTD) results, deploy a rules-based model that, when a threat or clearance is detected across several SD-WAN edge network devices, triggers an update to a local security blacklist/whitelist, wherein the update comprises a signature, and push the update to other devices that have not yet seen the threat or clearance.

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