公开(公告)号：US20150254149A1

公开(公告)日：2015-09-10

申请号：US14721135

申请日：2015-05-26

Applicant: Cisco Technology, Inc.

Inventor： Dhananjaya Rao ,  Victor M. Moreno ,  Hasmit Grover ,  Gaurav Badoni

IPC: G06F11/20 ,  H04L12/751 ,  H04L29/08

CPC classification number: G06F11/2033 ,  G06F2201/86 ,  H04L12/4641 ,  H04L45/02 ,  H04L47/746 ,  H04L67/141

Abstract: Devices, methods and instructions encoded on computer readable medium for implementation of a dual-adjacency between edge devices of a network site. A first edge device comprises one or more local interfaces configured for communication, via a local network, with one or more network devices co-located in a first network site. The first edge device also comprises one or more overlay interfaces configured for communication, via a core network, with one or more network devices located in one or more other network sites connected to the core network. The first edge device comprises a processor configured to establish, via at least one of the local interfaces, a site communication channel with a second edge device co-located in the first network site. The processor is further configured to establish an overlay communication channel, via at least one of the overlay interfaces, with the second edge device.

Abstract translation: 编码在计算机可读介质上的设备，方法和指令，用于实现网络站点的边缘设备之间的双邻接。 第一边缘设备包括一个或多个本地接口，其被配置用于经由本地网络与共同位于第一网络站点中的一个或多个网络设备进行通信。 第一边缘设备还包括被配置为经由核心网络与位于连接到核心网络的一个或多个其他网络站点中的一个或多个网络设备进行通信的一个或多个覆盖接口。 第一边缘设备包括处理器，其被配置为经由本地接口中的至少一个建立与第一网络站点中共址的第二边缘设备的站点通信信道。 处理器还被配置为经由至少一个覆盖接口与第二边缘设备建立覆盖通信信道。

公开(公告)号：US09858163B2

公开(公告)日：2018-01-02

申请号：US14721135

申请日：2015-05-26

Applicant: Cisco Technology, Inc.

Inventor： Dhananjaya Rao ,  Victor M. Moreno ,  Hasmit Grover ,  Gaurav Badoni

IPC: G06F15/16 ,  G06F11/20 ,  H04L12/911 ,  H04L12/46 ,  H04L12/751 ,  H04L29/08

CPC classification number: G06F11/2033 ,  G06F2201/86 ,  H04L12/4641 ,  H04L45/02 ,  H04L47/746 ,  H04L67/141

Abstract: Devices, methods and instructions encoded on computer readable medium for implementation of a dual-adjacency between edge devices of a network site. A first edge device comprises one or more local interfaces configured for communication, via a local network, with one or more network devices co-located in a first network site. The first edge device also comprises one or more overlay interfaces configured for communication, via a core network, with one or more network devices located in one or more other network sites connected to the core network. The first edge device comprises a processor configured to establish, via at least one of the local interfaces, a site communication channel with a second edge device co-located in the first network site. The processor is further configured to establish an overlay communication channel, via at least one of the overlay interfaces, with the second edge device.

公开(公告)号：US20150043329A1

公开(公告)日：2015-02-12

申请号：US14182429

申请日：2014-02-18

Applicant: Cisco Technology, Inc.

Inventor： Vrushali Ashtaputre ,  Gaurav Badoni ,  Dhananjaya Rao ,  Sreenivas Duvvuri ,  Hasmit Grover

IPC: H04L12/24 ,  H04L12/18

CPC classification number: H04L41/0668 ,  H04L12/1886 ,  H04L12/4633 ,  H04L12/4675

Abstract: Techniques are provided for designating, in an overlay transport virtualization (OTV) network connected to a data center, an edge device to act as a backup authoritative edge device (BAED) for an authoritative edge device (AED) for multicast packet encapsulation and forwarding. Data traffic associated with a given virtual local area network (VLAN) may be detected from a multicast source in the data center addressed to recipients in a site group. A mapping may be generated between the site group and a core data group in the OTV network for traffic from the multicast source. Advertisements may be sent of the mapping to edge devices in another data center across the OTV network. A similar configuration is presented for a BAED for inbound multicast traffic to a data center.

Abstract translation: 提供了技术，用于在连接到数据中心的覆盖传输虚拟化（OTV）网络中指定用于授权边缘设备（AED）的用于组播分组封装和转发的备份权威边缘设备（BAED）的边缘设备。 与给定的虚拟局域网（VLAN）相关联的数据业务可以从寻址到站点组中的接收者的数据中心中的组播源检测。 可以在OTV网络中的站点组和核心数据组之间生成用于来自组播源的流量的映射。 广告可以通过OTV网络发送到另一个数据中心的边缘设备的映射。 针对数据中心的入站组播流量的BAED提供了类似的配置。

公开(公告)号：US20140169368A1

公开(公告)日：2014-06-19

申请号：US13719510

申请日：2012-12-19

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Hasmit Grover ,  Dhananjaya Rao ,  Victor Moreno

IPC: H04L12/56

CPC classification number: H04L45/745 ,  H04L45/64

Abstract: In one embodiment, a method includes receiving a packet at an edge device in a first network site in communication with a second network site through a transport network, the packet comprising a destination address for a host at the second network site, verifying at the edge device a connection with the host, and inserting the destination address in a forwarding information base at the edge device upon verifying the connection with the host. An apparatus and logic are also disclosed herein.

Abstract translation: 在一个实施例中，一种方法包括在通过传输网络与第二网络站点通信的第一网络站点中的边缘设备处接收分组，该分组包括在第二网络站点处的主机的目的地地址，在边缘验证 设备与主机的连接，以及在验证与主机的连接时将目标地址插入到边缘设备的转发信息库中。 本文还公开了一种装置和逻辑。

公开(公告)号：US10313155B2

公开(公告)日：2019-06-04

申请号：US13939667

申请日：2013-07-11

Applicant: Cisco Technology, Inc.

Inventor： Gaurav Badoni ,  Dhananjaya Rao ,  Hasmit Grover ,  Senthil Kenchiah ,  Vrushali Ashtaputre

IPC: H04L12/24 ,  H04L12/46 ,  H04L12/715 ,  H04L12/703 ,  H04L12/717

Abstract: In one embodiment, an authoritative edge device (AED)-server in a computer network maintains assignment of an active AED for a particular virtual local area network (VLAN), and in response to a triggered re-assignment, sends an AED change request identifying an old active AED for the particular VLAN and a new active AED for the particular VLAN (e.g., and/or corresponding backups). In response to receiving the change request, the old active AED ceases forwarding of traffic for the particular VLAN and transmits a relinquishment confirmation into the network. Also, in response to receiving the change request and the relinquishment confirmation from the old active AED, the new active AED assumes responsibility for traffic forwarding for the particular VLAN and transmits an activation confirmation into the network. The change request is then deemed completed by the AED-sever upon receipt of both the relinquishment confirmation and the activation confirmation.

公开(公告)号：US20150019697A1

公开(公告)日：2015-01-15

申请号：US13939667

申请日：2013-07-11

Applicant: Cisco Technology, Inc.

Inventor： Gaurav Badoni ,  Dhananjaya Rao ,  Hasmit Grover ,  Senthil Kenchiah ,  Vrushali Ashtaputre

IPC: H04L12/24

CPC classification number: H04L12/4641 ,  H04L41/0813 ,  H04L41/0856 ,  H04L45/04 ,  H04L45/28 ,  H04L45/42

Abstract: In one embodiment, an authoritative edge device (AED)-server in a computer network maintains assignment of an active AED for a particular virtual local area network (VLAN), and in response to a triggered re-assignment, sends an AED change request identifying an old active AED for the particular VLAN and a new active AED for the particular VLAN (e.g., and/or corresponding backups). In response to receiving the change request, the old active AED ceases forwarding of traffic for the particular VLAN and transmits a relinquishment confirmation into the network. Also, in response to receiving the change request and the relinquishment confirmation from the old active AED, the new active AED assumes responsibility for traffic forwarding for the particular VLAN and transmits an activation confirmation into the network. The change request is then deemed completed by the AED-sever upon receipt of both the relinquishment confirmation and the activation confirmation.

Abstract translation: 在一个实施例中，计算机网络中的授权边缘设备（AED） - 服务器维护对于特定虚拟局域网（VLAN）的活动AED的分配，并且响应于触发的重新分配，发送AED改变请求标识 用于特定VLAN的旧活动AED和特定VLAN的新活动AED（例如和/或相应的备份）。 响应于接收到更改请求，旧的活动AED停止转发特定VLAN的流量，并将放弃确认发送到网络。 此外，响应于从旧的活动AED接收到更改请求和放弃确认，新的活动AED承担特定VLAN的流量转发的责任，并将激活确认发送到网络中。 然后，AED-sever在收到放弃确认和激活确认之后，认为完成了更改请求。

公开(公告)号：US20140307541A1

公开(公告)日：2014-10-16

申请号：US13964327

申请日：2013-08-12

Applicant: Cisco Technology, Inc.

Inventor： Gaurav Badoni ,  Dhananjaya Rao ,  Hasmit Grover ,  Senthil Kenchiah ,  Victor Moreno

IPC: H04L12/703 ,  H04L12/721

CPC classification number: H04L45/28 ,  H04L45/12

Abstract: Techniques are presented herein for optimizing traffic routing in overlay networks. At a first edge device located at a first site in a network, a message is received that indicates address information of a network device. The address information of the network device is stored in an address table. The address information is associated with a site identifier that identifies a second site at which the network device is located. The site identifier is mapped to an identifier associated with a second edge device that is responsible for routing traffic to network devices at the second site.

Abstract translation: 本文介绍了优化覆盖网络中的流量路由的技术。 在位于网络中的第一站点的第一边缘设备处，接收到指示网络设备的地址信息的消息。 网络设备的地址信息存储在地址表中。 地址信息与标识网络设备所在的第二站点的站点标识符相关联。 站点标识符被映射到与负责将通信路由到第二站点处的网络设备的第二边缘设备相关联的标识符。

公开(公告)号：US20140112203A1

公开(公告)日：2014-04-24

申请号：US13654491

申请日：2012-10-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Dhananjaya Rao ,  Hasmit Grover ,  Shekher Bulusu

IPC: H04L12/56

CPC classification number: H04L45/64 ,  H04L12/4625 ,  H04L12/6418 ,  H04L12/66 ,  H04L45/18

Abstract: In some embodiments, edge devices associated with a network segment are identified. One of the devices is elected as an authoritative device and any previous authoritative devices are instructed to halt forwarding network traffic to an overlay network.

Abstract translation: 在一些实施例中，识别与网络段相关联的边缘设备。 其中一个设备被选为权威设备，并且指示任何先前的授权设备停止将网络流量转发到覆盖网络。

公开(公告)号：US11063784B2

公开(公告)日：2021-07-13

申请号：US16391703

申请日：2019-04-23

Applicant: Cisco Technology, Inc.

Inventor： Gaurav Badoni ,  Dhananjaya Rao ,  Hasmit Grover ,  Senthil Kenchiah ,  Vrushali Ashtaputre

IPC: H04L12/24 ,  H04L12/46 ,  H04L12/715 ,  H04L12/703 ,  H04L12/717

Abstract: In one embodiment, an authoritative edge device (AED)-server in a computer network maintains assignment of an active AED for a particular virtual local area network (VLAN), and in response to a triggered re-assignment, sends an AED change request identifying an old active AED for the particular VLAN and a new active AED for the particular VLAN (e.g., and/or corresponding backups). In response to receiving the change request, the old active AED ceases forwarding of traffic for the particular VLAN and transmits a relinquishment confirmation into the network. Also, in response to receiving the change request and the relinquishment confirmation from the old active AED, the new active AED assumes responsibility for traffic forwarding for the particular VLAN and transmits an activation confirmation into the network. The change request is then deemed completed by the AED-sever upon receipt of both the relinquishment confirmation and the activation confirmation.

公开(公告)号：US20190253276A1

公开(公告)日：2019-08-15

申请号：US16391703

申请日：2019-04-23

Applicant: Cisco Technology, Inc.

Inventor： Gaurav Badoni ,  Dhananjaya Rao ,  Hasmit Grover ,  Senthil Kenchiah ,  Vrushali Ashtaputre

IPC: H04L12/46 ,  H04L12/715 ,  H04L12/24

CPC classification number: H04L12/4641 ,  H04L41/0813 ,  H04L41/0856 ,  H04L45/04 ,  H04L45/28 ,  H04L45/42

Abstract: In one embodiment, an authoritative edge device (AED)-server in a computer network maintains assignment of an active AED for a particular virtual local area network (VLAN), and in response to a triggered re-assignment, sends an AED change request identifying an old active AED for the particular VLAN and a new active AED for the particular VLAN (e.g., and/or corresponding backups). In response to receiving the change request, the old active AED ceases forwarding of traffic for the particular VLAN and transmits a relinquishment confirmation into the network. Also, in response to receiving the change request and the relinquishment confirmation from the old active AED, the new active AED assumes responsibility for traffic forwarding for the particular VLAN and transmits an activation confirmation into the network. The change request is then deemed completed by the AED-sever upon receipt of both the relinquishment confirmation and the activation confirmation.