公开(公告)号：US20160134513A1

公开(公告)日：2016-05-12

申请号：US14535665

申请日：2014-11-07

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yibin Yang ,  Liqin Dong ,  Alex Tsai ,  Rajagopalan Janakiraman

IPC: H04L12/761 ,  H04L29/08 ,  H04L12/947

CPC classification number: H04L45/16 ,  H04L49/25 ,  H04L69/325

Abstract: Coordinating gateways for multi-destination traffic across a TRILL fabric and a VXLAN/IP fabric with a plurality of TRILL IS-IS TLVs and a plurality of Layer 3 IS-IS TLVs is provided herein. The plurality of TRILL IS-IS TLVs and the plurality of Layer 3 IS-IS TLVs effectuate: grafting an IP multicast share tree with a plurality of TRILL distribution trees at only one of a plurality of gateways in a network interworking a TRILL fabric and a VXLAN/IP fabric; ensuring that multicast traffic traversing from the plurality of TRILL distribution trees is not looped back to the TRILL fabric through the VXLAN/IP fabric; restoring connectivity among a plurality of VXLAN/IP fabric partitions through the TRILL fabric if the VXLAN/IP fabric is partitioned; and restoring connectivity among a plurality of TRILL fabric partitions through the VXLAN/IP fabric if the TRILL fabric is partitioned.

Abstract translation: 本文提供了通过TRILL结构和具有多个TRILL IS-IS TLV和多个第三层IS-IS TLV的VXLAN / IP架构的多目的地业务的协调网关。 多个TRILL IS-IS TLV和多个第3层IS-IS TLV实现：在与TRILL结构互通的网络中的多个网关中的一个网关处移植具有多个TRILL分发树的IP多播共享树， VXLAN / IP fabric; 确保从多个TRILL分发树中穿过的多播流量不会通过VXLAN / IP结构循环回TRILL结构; 如果VXLAN / IP结构被分区，则通过TRILL结构恢复多个VXLAN / IP架构分区之间的连接; 并且如果分区了TRILL结构，则通过VXLAN / IP结构恢复多个TRILL结构分区之间的连接。

公开(公告)号：US20140161131A1

公开(公告)日：2014-06-12

申请号：US13711919

申请日：2012-12-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yibin Yang ,  Alex Tsai ,  Vinay Parameswarannair

IPC: H04L12/56

CPC classification number: H04L45/54 ,  H04L12/4641 ,  H04L12/4658 ,  H04L47/12

Abstract: A segment within a virtual network is identified as being supported by a segment bundling device. The segment within the virtual network supports a first host connected to a first bridging device and a second host connected to a second bridging device. The segment bundling device is used to receive virtual network address information describing the virtual network segmentation identifier (ID) for the segment used for receiving virtual network traffic for the first and second host. A segment bundling table associating a bundle ID with the virtual network segmentation identifier based on the upper ID and the lower ID of the virtual network ID is generated by the segment bundling device. The segment bundling device is used to distribute the segment bundling table to traffic forwarding devices in the virtual network that interface with the first bridging device and the second bridging device.

Abstract translation: 虚拟网络中的段被识别为由段捆绑设备支持。 虚拟网络内的段支持连接到第一桥接设备的第一主机和连接到第二桥接设备的第二主机。 分段捆绑设备用于接收描述用于接收第一和第二主机的虚拟网络业务的分段的虚拟网络分段标识符（ID）的虚拟网络地址信息。 通过分段捆绑装置生成基于虚拟网络ID的上部ID和下部ID，将捆绑ID与虚拟网络分段标识符相关联的分段捆绑表。 分段捆绑设备用于将分组捆绑表分配到与第一桥接设备和第二桥接设备接口的虚拟网络中的流量转发设备。

公开(公告)号：US09819574B2

公开(公告)日：2017-11-14

申请号：US14535665

申请日：2014-11-07

Applicant: Cisco Technology, Inc.

Inventor： Yibin Yang ,  Liqin Dong ,  Alex Tsai ,  Rajagopalan Janakiraman

IPC: H04L12/761 ,  H04L12/947 ,  H04L29/08

CPC classification number: H04L45/16 ,  H04L49/25 ,  H04L69/325

Abstract: Coordinating gateways for multi-destination traffic across a TRILL fabric and a VXLAN/IP fabric with a plurality of TRILL IS-IS TLVs and a plurality of Layer 3 IS-IS TLVs is provided herein. The plurality of TRILL IS-IS TLVs and the plurality of Layer 3IS-IS TLVs effectuate: grafting an IP multicast share tree with a plurality of TRILL distribution trees at only one of a plurality of gateways in a network interworking a TRILL fabric and a VXLAN/IP fabric; ensuring that multicast traffic traversing from the plurality of TRILL distribution trees is not looped back to the TRILL fabric through the VXLAN/IP fabric; restoring connectivity among a plurality of VXLAN/IP fabric partitions through the TRILL fabric if the VXLAN/IP fabric is partitioned; and restoring connectivity among a plurality of TRILL fabric partitions through the VXLAN/IP fabric if the TRILL fabric is partitioned.

公开(公告)号：US09143442B2

公开(公告)日：2015-09-22

申请号：US13711919

申请日：2012-12-12

Applicant: Cisco Technology, Inc.

Inventor： Yibin Yang ,  Alex Tsai ,  Vinay Parameswarannair

IPC: H04L12/741 ,  H04L12/801 ,  H04L12/46

CPC classification number: H04L45/54 ,  H04L12/4641 ,  H04L12/4658 ,  H04L47/12

Abstract: A segment within a virtual network is identified as being supported by a segment bundling device. The segment within the virtual network supports a first host connected to a first bridging device and a second host connected to a second bridging device. The segment bundling device is used to receive virtual network address information describing the virtual network segmentation identifier (ID) for the segment used for receiving virtual network traffic for the first and second host. A segment bundling table associating a bundle ID with the virtual network segmentation identifier based on the upper ID and the lower ID of the virtual network ID is generated by the segment bundling device. The segment bundling device is used to distribute the segment bundling table to traffic forwarding devices in the virtual network that interface with the first bridging device and the second bridging device.

Abstract translation: 虚拟网络中的段被识别为由段捆绑设备支持。 虚拟网络内的段支持连接到第一桥接设备的第一主机和连接到第二桥接设备的第二主机。 分段捆绑设备用于接收描述用于接收第一和第二主机的虚拟网络业务的分段的虚拟网络分段标识符（ID）的虚拟网络地址信息。 通过分段捆绑装置生成基于虚拟网络ID的上部ID和下部ID，将捆绑ID与虚拟网络分段标识符相关联的分段捆绑表。 分段捆绑设备用于将分组捆绑表分配到与第一桥接设备和第二桥接设备接口的虚拟网络中的流量转发设备。

公开(公告)号：US09686383B2

公开(公告)日：2017-06-20

申请号：US14985146

申请日：2015-12-30

Applicant: Cisco Technology, Inc.

Inventor： Yuchen Zhou ,  Richard Stewart ,  Alex Tsai ,  Yibin Yang

IPC: G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L29/06 ,  H04L12/707 ,  H04L12/709 ,  H04L12/751

CPC classification number: H04L69/28 ,  H04L45/02 ,  H04L45/24 ,  H04L45/245 ,  H04L69/14 ,  Y02D50/30

Abstract: Synchronization of traffic multiplexing in link aggregation is described. In an embodiment, a first link aggregator and a second link aggregator are associated with a plurality of links. The first link aggregator maintains an identifier for each link indicating at least a state of enabled or disabled. A synchronized clock is established between the first link aggregator and the second link aggregator. A particular link of the plurality of links is transitioned. Wherein, the transitioning is performed by the first link aggregator sending, to the second link aggregator, a first message identifying a particular time to transition the particular link. The first link aggregator receives, from the second link aggregator, a second message indicating that the particular time is acceptable. In response to a determination that the second message indicates that the particular time is acceptable and that the synchronized clock has reached the particular time, transitioning the link.

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。