公开(公告)号：US09325636B2

公开(公告)日：2016-04-26

申请号：US13918658

申请日：2013-06-14

Applicant: CISCO TECHNOLOGY, Inc.

Inventor： Yibin Yang ,  Alex Tsai ,  Liqin Dong ,  Di Jin

IPC: H04L12/46 ,  H04L12/947 ,  H04L12/18

CPC classification number: H04L49/25 ,  H04L12/18 ,  H04L12/1886

Abstract: Techniques which provide scalable techniques for managing multicast traffic in interconnected IP fabric data centers. More specifically, embodiments presented herein disclose an aggregated source technique used to address scalability issues for interconnected IP fabric data centers as well as disclose a secondary rendezvous point technique used to address backbone network (S, G) multicast state scalability. Additionally, embodiments disclosed herein include an approach for border leaf load balancing based on group destination addresses used by VTEPs.

Abstract translation: 提供可扩展技术的技术，用于管理互连IP架构数据中心中的组播流量。 更具体地说，本文所呈现的实施例公开了用于解决互连的IP结构数据中心的可扩展性问题的聚合源技术，并且公开了用于解决骨干网（S，G）多播状态可扩展性的次会聚点技术。 此外，本文公开的实施例包括基于VTEP使用的组目的地地址的边界叶片负载平衡的方法。

公开(公告)号：US09503277B2

公开(公告)日：2016-11-22

申请号：US14340079

申请日：2014-07-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Liqin Dong ,  Yibin Yang ,  Di Jin ,  Xinggang Zhou ,  Siu-Man Leung

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/751

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L45/021 ,  H04L45/08 ,  H04L2012/4629

Abstract: A method is provided in one example embodiment and includes acquiring at a local network element information regarding a remote network element via a control protocol distribution method and refraining from instantiating the remote VTEP for the remote network element on the local network element until unicast traffic from the local network element to the remote network element via an overlay network has begun. The method may further include detecting unicast traffic from the local network element to the remote network element and subsequent to the detecting, instantiating the remote VTEP for the remote network element on the local network element. Some embodiments may include detecting cessation of the unicast traffic from the local network element to the remote network element and subsequent to the detecting cessation, uninstantiating the remote VTEP for the remote network element from the local network element.

Abstract translation: 在一个示例实施例中提供了一种方法，并且包括通过控制协议分发方法在本地网络单元获取关于远程网络元件的信息，并且避免对本地网络元件上的远程网元实例化远程VTEP，直到来自 已经开始通过覆盖网络到远程网元的本地网元。 该方法还可以包括检测从本地网络单元到远程网络单元的单播业务，并且在本地网络元件上检测，实例化远程网络元件的远程VTEP之后。 一些实施例可以包括检测从本地网络元件到远程网络元件的停止，并且在检测停止之后，从远离的网络元件的远程VTEP与本地网络元件相抵消。

公开(公告)号：US10298490B2

公开(公告)日：2019-05-21

申请号：US14963470

申请日：2015-12-09

Applicant: Cisco Technology, Inc.

Inventor： Liqin Dong ,  Yibin Yang ,  Lukas Krattiger ,  Xinggang Zhou ,  Di Jin ,  Siu-Man Leung

IPC: H04L29/06 ,  H04L12/721 ,  H04L12/46 ,  H04L12/66 ,  H04L12/715 ,  H04L12/775 ,  H04L12/753

Abstract: Coexistence and migration of legacy and VXLAN networks may be provided. A first anchor leaf switch and a second anchor leaf switch may detect that they can reach each other over a Virtual Extensible Local Area Network (VXLAN) overlay layer 2 network. In response to detecting that they can reach each other over the VXLAN, the second anchor leaf switch may block VLANs mapped to the VXLAN's VXLAN Network Identifier (VNI) on the second anchor leaf switch's ports connecting to spine routers. In addition, the first anchor leaf switch and the second anchor leaf switch may detect that they can reach each other over a physical layer 2 network. In response to detecting that they can reach each other over a physical layer 2 network, the second anchor leaf switch may block Virtual Extensible Local Area Network (VXLAN) segments at the second anchor leaf switch.

公开(公告)号：US20170171056A1

公开(公告)日：2017-06-15

申请号：US14963470

申请日：2015-12-09

Applicant: Cisco Technology, Inc.

Inventor： Liqin Dong ,  Yibin Yang ,  Lukas Krattiger ,  Xinggang Zhou ,  Di Jin ,  Siu-Man Leung

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/715 ,  H04L12/46 ,  H04L12/66

CPC classification number: H04L45/66 ,  H04L12/4641 ,  H04L12/66 ,  H04L45/48 ,  H04L45/58 ,  H04L45/64

Abstract: Coexistence and migration of legacy and VXLAN networks may be provided. A first anchor leaf switch and a second anchor leaf switch may detect that they can reach each other over a Virtual Extensible Local Area Network (VXLAN) overlay layer 2 network. In response to detecting that they can reach each other over the VXLAN, the second anchor leaf switch may block VLANs mapped to the VXLAN's VXLAN Network Identifier (VNI) on the second anchor leaf switch's ports connecting to spine routers. In addition, the first anchor leaf switch and the second anchor leaf switch may detect that they can reach each other over a physical layer 2 network. In response to detecting that they can reach each other over a physical layer 2 network, the second anchor leaf switch may block Virtual Extensible Local Area Network (VXLAN) segments at the second anchor leaf switch.

公开(公告)号：US20160028557A1

公开(公告)日：2016-01-28

申请号：US14340079

申请日：2014-07-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Liqin Dong ,  Yibin Yang ,  Di Jin ,  Xinggang Zhou ,  Siu-Man Leung

IPC: H04L12/46 ,  H04L12/751

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L45/021 ,  H04L45/08 ,  H04L2012/4629

Abstract: A method is provided in one example embodiment and includes acquiring at a local network element information regarding a remote network element via a control protocol distribution method and refraining from instantiating the remote VTEP for the remote network element on the local network element until unicast traffic from the local network element to the remote network element via an overlay network has begun. The method may further include detecting unicast traffic from the local network element to the remote network element and subsequent to the detecting, instantiating the remote VTEP for the remote network element on the local network element. Some embodiments may include detecting cessation of the unicast traffic from the local network element to the remote network element and subsequent to the detecting cessation, uninstantiating the remote VTEP for the remote network element from the local network element.

Abstract translation: 在一个示例实施例中提供了一种方法，并且包括通过控制协议分发方法在本地网络单元获取关于远程网络元件的信息，并且避免对本地网络元件上的远程网元实例化远程VTEP，直到来自 已经开始通过覆盖网络到远程网元的本地网元。 该方法还可以包括检测从本地网络单元到远程网络单元的单播业务，并且在本地网络元件上检测，实例化远程网络元件的远程VTEP之后。 一些实施例可以包括检测从本地网络元件到远程网络元件的停止，并且在检测停止之后，从远离的网络元件的远程VTEP与本地网络元件相抵消。