公开(公告)号：US20220377150A1

公开(公告)日：2022-11-24

申请号：US17817568

申请日：2022-08-04

Applicant: Cisco Technology, Inc.

Inventor： Yi Yang ,  Wojciech Dec ,  Syed Basheeruddin Ahmed ,  Sanjay Agrawal ,  Ruchir Gupta

IPC: H04L67/51 ,  G06F9/455

Abstract: Systems and methods provide for scaling service discovery in a micro-service environment. A controller can inject a service discovery agent onto a host. At least one of the controller or the agent can identify a first set of micro-service containers that are dependencies of the first micro-service container and a second set of micro-service containers that are dependencies of the second micro-service container. At least one of the controller or the agent can update routing data for the first set of micro-service containers and the second set of micro-service containers. At least one of the controller or the agent can determine the second micro-service container has terminated on the host computing device. At least one of the controller or the agent can update the agent to remove the routing data for the second set of micro-service containers.

公开(公告)号：US10374884B2

公开(公告)日：2019-08-06

申请号：US15217573

申请日：2016-07-22

Applicant: Cisco Technology, Inc.

Inventor： Wojciech Dec ,  Sanjay Agrawal ,  Yi Yang ,  Ruchir Gupta ,  Syed Basheeruddin Ahmed

IPC: H04L12/24

Abstract: Disclosed are systems, methods, and computer-readable storage media for automatically, dynamically generating feature model augmentation statements for data nodes for a new network feature described in a data modeling language. A software-defined controller, or other network components, can detect the availability of a new network feature defined by a feature model in a data modeling language and process the feature model to create an authorization policy data defining access rules control rules for the new network feature. Based on the authorization policy, the controller or the authorization model generator can generate a set of augmentation statements for one or more data nodes in the feature model of the new network feature and augment the new feature model with the augmentation statements for controlling access to the new network feature.

公开(公告)号：US20180062991A1

公开(公告)日：2018-03-01

申请号：US15252147

申请日：2016-08-30

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  Deepak Kumar ,  Yi Yang

IPC: H04L12/721 ,  H04L12/26 ,  H04L12/935

CPC classification number: H04L45/70 ,  H04L43/08 ,  H04L45/24 ,  H04L45/38 ,  H04L45/42 ,  H04L49/3009

Abstract: The subject technology relates to methods for identifying network routes. In some aspects, the method can include steps for transmitting a first query to a network controller, the first query identifying a destination node for a traffic flow routed by the first network node, wherein the first query is configured to cause the network controller perform operations including: identify at least one egress node between the first network node and the destination node, transmit a second query to the at least one egress node to determine entropy information relative to the egress node, and transmit the entropy information to the first network node in response to the first query. Systems and machine-readable media are also provided.

公开(公告)号：US20170026275A1

公开(公告)日：2017-01-26

申请号：US14804069

申请日：2015-07-20

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yi Yang ,  Alvaro E. Retana ,  Steven Edward Moore ,  James L. Ng ,  Timothy M. Gage

IPC: H04L12/715 ,  H04L29/06 ,  H04L29/12 ,  H04L12/66

CPC classification number: H04L45/04 ,  H04L12/66 ,  H04L61/25 ,  H04L61/6068 ,  H04L65/102

Abstract: Present disclosure relates to methods for preparing BGP update messages for transmission and processing received update messages. The methods are based on grouping path attributes common to a plurality of IP address prefixes into respective sets identified with respective set identifiers and, instead of duplicating path attributes in each BGP update message, including a respective identifier referring to a certain set of path attributes provided in an earlier BGP update message when sending subsequent update messages. Grouping of path attributes into individual sets associated with respective identifiers provides significant advantages by enabling re-use of the results of previous processing on both the sending and receiving sides associated with transmission of BGP update messages. In addition, such an approach limits the amount of information transmitted in the control plane because duplicate sets of path attributes may only be transmitted once and merely be referred to in subsequent update messages.

公开(公告)号：US20160285740A1

公开(公告)日：2016-09-29

申请号：US14666786

申请日：2015-03-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yi Yang ,  Alvaro E. Retana ,  Keyur Patel ,  Fabien Degouet

IPC: H04L12/715 ,  H04L29/06 ,  H04L29/12 ,  H04L12/24 ,  H04L12/66

CPC classification number: H04L45/04 ,  H04L12/66 ,  H04L63/101 ,  H04L65/1036 ,  H04L65/607

Abstract: A method for controlling transit of routing messages in a network comprising multiple autonomous systems (AS) is disclosed. The method includes receiving, at a first AS, a routing message of an inter-AS routing protocol and identifying that the routing message comprises transit domain control (TDC) information specifying one or more autonomous systems to which the routing message may be propagated and/or one or more autonomous systems to which the routing message may not be propagated. The method further includes propagating the routing message from the first AS to a second AS in accordance with the TDC information.

Abstract translation: 公开了一种用于控制包括多个自治系统（AS）的网络中的路由消息的传送的方法。 该方法包括在第一AS处接收跨AS路由协议的路由消息，并且识别该路由消息包括指定可以传播路由消息的一个或多个自治系统的传输域控制（TDC）信息和/ 或路由消息可能不被传播到的一个或多个自治系统。 该方法还包括根据TDC信息将路由消息从第一AS传播到第二AS。

公开(公告)号：US20140003289A1

公开(公告)日：2014-01-02

申请号：US14013990

申请日：2013-08-29

Applicant: Cisco Technology, Inc.

Inventor： Yi Yang ,  Alvaro E. Retana ,  James Ng ,  Abhay Roy ,  Alfred C. Lindem, III ,  Sina Mirtorabi ,  Timothy M. Gage ,  Syed Khalid Raza

IPC: H04L12/751

CPC classification number: H04L45/021 ,  H04L45/02 ,  H04L45/025 ,  H04L45/54 ,  H04L45/60 ,  H04L47/10 ,  H04L63/0407

Abstract: In one embodiment, a first router determines whether a network coupling the first router to one or more second routers is transit-only, wherein transit-only indicates connecting only routers to provide for transmission of data from router to router. When the network is transit-only, the first router generates an Open Shortest Path First (OSPF) Link State Advertisement (LSA) that includes an address for the network and a designated network mask. The designated network mast operates as a transit-only identification that indicates the address should not be installed in a Routing Information Base (RIB) upon receipt of the OSPF LSA at the one or more second routers. When the network is not transit-only, the first router generates an OSPF LSA that includes the address for the network but does not include the designated network mask, to permit installation of the address in a RIB upon receipt of the OSPF LSA at the one or more second routers.

Abstract translation: 在一个实施例中，第一路由器确定将第一路由器耦合到一个或多个第二路由器的网络是否是仅运输，其中，传输仅指示仅连接路由器以提供从路由器到路由器的数据传输。 当网络仅传输时，第一路由器生成包括网络地址和指定网络掩码的开放最短路径优先（OSPF）链路状态通告（LSA）。 指定的网络桅杆作为仅传输标识操作，其指示在一个或多个第二路由器上接收到OSPF LSA时，该地址不应安装在路由信息库（RIB）中。 当网络不通过时，第一个路由器生成包含网络地址但不包括指定网络掩码的OSPF LSA，以便在接收到OSPF LSA时在一个RIB中安装该地址 或更多的第二路由器。

公开(公告)号：US11018952B2

公开(公告)日：2021-05-25

申请号：US16252309

申请日：2019-01-18

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Agrawal ,  Ruchir Gupta ,  Syed Basheeruddin Ahmed ,  Yi Yang ,  Meenakshi Kaushik

IPC: H04L12/24 ,  G06T11/20 ,  H04L12/26

Abstract: Systems, methods, and non-transitory computer-readable storage media for visualizing current and historical access policy of a group based policy. A first group based policy and a second group based policy are received at a computing device, where each group based policy includes policy rules defining a range of destination internet protocol addresses, a range of source internet protocol addresses and a range of access ports. The computing device renders a three dimensional representation of the first group based policy, based on the policy rules of the first group based policy. The computing device renders a three dimensional representation of the second group based policy, based on the policy rules of the second group based policy. The computing device displays the representations of the first group based policy and second group based policy on a graphical interface.

公开(公告)号：US10609621B2

公开(公告)日：2020-03-31

申请号：US15190798

申请日：2016-06-23

Applicant: Cisco Technology, Inc.

Inventor： Yi Yang ,  Alvaro Enrique Retana

IPC: H04W40/18 ,  H04W40/24 ,  H04L12/721 ,  H04W40/30 ,  H04L12/753 ,  H04L12/717

Abstract: In one embodiment, a method comprises receiving, by a network device within a tree-based topology rooted by a root network device, a request message from a child network device for generating an optimized tree-based topology for a future use by the child network device at a future time instance; the network device executing an objective function for generating the optimized tree-based topology for the future use by the child network device; and the network device providing network communications, for the child network device, at the future time instance using the optimized tree-based topology.

公开(公告)号：US10348838B2

公开(公告)日：2019-07-09

申请号：US15217311

申请日：2016-07-22

Applicant: Cisco Technology, Inc.

Inventor： Yi Yang ,  Wojciech Dec ,  Syed Basheeruddin Ahmed ,  Sanjay Agrawal ,  Ruchir Gupta

IPC: H04L29/08 ,  H04L12/24 ,  H04L12/911 ,  G06F8/60 ,  G06F9/445 ,  G06F9/50

Abstract: Disclosed are systems, methods, and computer-readable storage media for scaling service discovery in a micro-service environment. A controller can instantiate, on a host computing device, a first container instance providing a first micro-service of an application. The host computing device can include a service discovery agent. The controller can identify a set of micro-services that are dependencies of the first micro-service, and update the service discovery agent with routing data for container instances providing the set of micro-services that are dependencies of the first micro-service. The service discovery agent can use the routing data to route requests from the first container instance to container instances providing the set of micro-services that are dependencies of the first micro-service.

公开(公告)号：US10225174B2

公开(公告)日：2019-03-05

申请号：US15156215

申请日：2016-05-16

Applicant: Cisco Technology, Inc.

Inventor： Yi Yang ,  Alvaro E. Retana ,  James L. Ng ,  Abhay Roy ,  Alfred C. Lindem ,  Sina Mirtorabi ,  Timothy M. Gage ,  Syed Khalid Raza

IPC: H04L12/751 ,  H04L12/755 ,  H04L12/741 ,  H04L12/773 ,  H04L12/801 ,  H04L29/06

Abstract: In one embodiment, a first router determines whether an interface coupling the first router to one or more second routers is transit-only. When the interface is transit-only, the first router generates an Open Shortest Path First (OSPF) Link State Advertisement (LSA) that includes an address for the interface and a designated network mask. The designated network mask operates as a transit-only identification that indicates the address should not be installed in a Routing Information Base (RIB) upon receipt of the OSPF LSA at the one or more second routers. When the network is not transit-only, the first router generates an OSPF LSA that includes the address for the interface but does not include the designated network mask, to permit installation of the address in a RIB upon receipt of the OSPF LSA at the one or more second routers.