公开(公告)号：US20160036946A1

公开(公告)日：2016-02-04

申请号：US14816974

申请日：2015-08-03

Applicant: Cisco Technology, Inc.

Inventor： Siddharth KASAT ,  Christian SASSO ,  Ankur GOYAL ,  Shivaranjani Sankara KRISHNAN ,  Yibin YANG

IPC: H04L29/14 ,  H04L12/46

CPC classification number: H04L69/40 ,  H04L12/4641

Abstract: Upon receiving a first message, from the second network device, indicating that the second network device is incompatible with one or more virtual local area network (VLAN) pruning techniques, a timer on a first network device is configured to expire after a predetermined period of time. The first network device is configured to maintain a subscription for the second network device to one or more VLANs until the timer expires. The second network device is configured to transmit the first message in response to detecting an upcoming control plane outage at the second device. Prior to the timer expiring, embodiments transmit data assigned to the one or more VLANs to the second network device. Embodiments also periodically receive update messages, from the second network device, identifying one or more VLANs to which the second network device wants to subscribe.

Abstract translation: 在从第二网络设备接收到第一消息时，指示第二网络设备与一个或多个虚拟局域网（VLAN）修剪技术不兼容，第一网络设备上的定时器被配置为在预定时间段 时间。 第一网络设备被配置为将第二网络设备的订阅维护到一个或多个VLAN直到定时器到期。 第二网络设备被配置为响应于检测到第二设备上的即将到来的控制平面中断而发送第一消息。 在定时器到期之前，实施例将分配给一个或多个VLAN的数据发送到第二网络设备。 实施例还周期性地从第二网络设备接收更新消息，识别第二网络设备想要订阅的一个或多个VLAN。

公开(公告)号：US20150372827A1

公开(公告)日：2015-12-24

申请号：US14312347

申请日：2014-06-23

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Liqin DONG ,  Yibin YANG ,  Xinggang ZHOU

IPC: H04L12/18 ,  H04L12/801 ,  H04L12/24

CPC classification number: H04L12/18 ,  H04L12/185 ,  H04L12/1886 ,  H04L41/0654 ,  H04L41/0843 ,  H04L45/16 ,  H04L47/12

Abstract: Multi-destination frames in a network fabric may be carried in IP multicast packets. As such, the network fabric may us IP multicast technique such as a PIM protocol for handling the multi-destination frames. To provide redundancy, the system administrator can use phantom rendezvous points (RPs) that include multiple physical RPs where one of the RPs serves as a primary RP and the other RPs serve as secondary RPs (e.g., backup RPs). Instead of the system administrator manually configuring the phantom RPs, the RPs are automatically configured. To do so, the system administrator may use a GUI to provide multicast groups allocated for the multi-destination traffic, the number of desired phantom RPs (or physical RPs), and the desired RP redundancy. Based on these parameters, a data center manager generates one or more templates that automatically configure the network devices in the fabric as they are booted.

Abstract translation: 网络结构中的多目的帧可以在IP组播数据包中携带。 因此，网络结构可能需要IP组播技术，例如用于处理多目的地帧的PIM协议。 为了提供冗余，系统管理员可以使用包含多个物理RP的幻像会合点（RP），其中一个RP用作主RP，而其他RP用作辅助RP（例如备份RP）。 而不是系统管理员手动配置幻像RP，RP会自动配置。 为此，系统管理员可以使用GUI来提供为多目的地业务分配的组播组，所需的幻象RP（或物理RP）的数量以及期望的RP冗余。 基于这些参数，数据中心管理器生成一个或多个模板，在模板启动时自动配置网络设备。

公开(公告)号：US20140369345A1

公开(公告)日：2014-12-18

申请号：US13918658

申请日：2013-06-14

Applicant: CISCO TECHNOLOGY, Inc.

Inventor： Yibin YANG ,  Alex TSAI ,  Liqin DONG ,  Di JIN

IPC: H04L12/741 ,  H04L12/18 ,  H04L12/947

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。