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：US09203643B2

公开(公告)日：2015-12-01

申请号：US13644100

申请日：2012-10-03

Applicant: Cisco Technology, Inc.

Inventor： Yibin Yang ,  Chiajen Tsai ,  Patnala Debashis Rao ,  Yuchen Zhou

IPC: H04L12/801 ,  H04L12/26 ,  H04L12/24 ,  H04L12/721 ,  H04L12/753 ,  H04L12/46

CPC classification number: H04L12/462 ,  H04L45/48 ,  H04L45/66

Abstract: Methods and apparatuses for rapid TRILL convergence are disclosed herein. The methods can be implemented in a network including a plurality of RBridges or in a cloud network environment including a plurality of cloud switch domains. An example method for rapid TRILL convergence can include: Executing a spanning tree protocol (STP) for network topology in a network; and executing a Hello protocol for control and forwarding at the RBridge. The Hello protocol can be configured to elect a designated RBridge and assign an appointed forwarder. The method can also include assigning a transient appointed forwarder during a period of time between convergence of the STP and convergence of the Hello protocol. The transient appointed forwarder can be configured to forward frames in the network during the period of time between convergence of the STP and convergence of the Hello protocol.

Abstract translation: 本文公开了用于快速TRILL收敛的方法和装置。 该方法可以在包括多个RBridge的网络中或在包括多个云交换机域的云网络环境中实现。 快速TRILL融合的示例方法可以包括：对网络中的网络拓扑执行生成树协议（STP）; 并在RBridge执行Hello协议进行控制和转发。 Hello协议可以配置为选择指定的RBridge并分配指定的转发器。 该方法还可以包括在STP的收敛和Hello协议的收敛之间的一段时间内分配临时指定的转发器。 临时指定的转发器可以配置为在STP收敛和Hello协议收敛之间的时间段内转发网络中的帧。

公开(公告)号：US09596099B2

公开(公告)日：2017-03-14

申请号：US14705071

申请日：2015-05-06

Applicant: Cisco Technology, Inc.

Inventor： Yibin Yang ,  Liqin Dong ,  Chia Tsai ,  Weng Hong Chan ,  Yuchen Zhou ,  Fang Yang ,  Jeffrey Cai ,  Yuefeng Jiang ,  Xiaopu Zhang

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/713 ,  H04L29/12

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L45/586 ,  H04L61/103 ,  H04L61/6022 ,  H04L2012/4629

Abstract: Techniques provided herein use aggregate endpoints in a virtual overlay network. In general, aggregate endpoints operate as a single receiving entity for certain packets/frames sent between different physical proximities of the virtual overlay network.

Abstract translation: 本文提供的技术使用虚拟覆盖网络中的聚合端点。 通常，聚合端点作为在虚拟覆盖网络的不同物理邻域之间发送的某些分组/帧的单个接收实体操作。

公开(公告)号：US09491105B2

公开(公告)日：2016-11-08

申请号：US14582085

申请日：2014-12-23

Applicant: Cisco Technology, Inc.

Inventor： Yuchen Zhou ,  Chia Alex Tsai ,  Yibin Yang ,  Rajagopalan Janakiraman

IPC: H04L12/841 ,  H04L12/709 ,  H04L12/823 ,  H04L12/801 ,  H04L12/26 ,  H04L12/835

CPC classification number: H04L47/28 ,  H04L43/0852 ,  H04L45/245 ,  H04L47/12 ,  H04L47/30 ,  H04L47/323 ,  Y02D50/30

Abstract: In one embodiment, a period between periodic transmissions of protocol data units (PDUs) used to form or maintain a link aggregation group is initially set to a fixed value. When a stress condition is detected, the period between periodic transmissions of PDUs is increased from the initial value. When the stress condition is determined to have eased, the period between periodic transmissions of PDUs is reduced back toward the fixed value.

公开(公告)号：US20140092780A1

公开(公告)日：2014-04-03

申请号：US13644100

申请日：2012-10-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Yibin Yang ,  Chiajen Tsai ,  Patnala Debashis Rao ,  Yuchen Zhou

IPC: H04L12/28

CPC classification number: H04L12/462 ,  H04L45/48 ,  H04L45/66

Abstract: Methods and apparatuses for rapid TRILL convergence are disclosed herein. The methods can be implemented in a network including a plurality of RBridges or in a cloud network environment including a plurality of cloud switch domains. An example method for rapid TRILL convergence can include: Executing a spanning tree protocol (STP) for network topology in a network; and executing a Hello protocol for control and forwarding at the RBridge. The Hello protocol can be configured to elect a designated RBridge and assign an appointed forwarder. The method can also include assigning a transient appointed forwarder during a period of time between convergence of the STP and convergence of the Hello protocol. The transient appointed forwarder can be configured to forward frames in the network during the period of time between convergence of the STP and convergence of the Hello protocol.

Abstract translation: 本文公开了用于快速TRILL收敛的方法和装置。 该方法可以在包括多个RBridge的网络中或在包括多个云交换机域的云网络环境中实现。 快速TRILL融合的示例方法可以包括：对网络中的网络拓扑执行生成树协议（STP）; 并在RBridge执行Hello协议进行控制和转发。 Hello协议可以配置为选择指定的RBridge并分配指定的转发器。 该方法还可以包括在STP的收敛和Hello协议的收敛之间的一段时间内分配临时指定的转发器。 临时指定的转发器可以配置为在STP收敛和Hello协议收敛之间的时间段内转发网络中的帧。

公开(公告)号：US20160330046A1

公开(公告)日：2016-11-10

申请号：US14705071

申请日：2015-05-06

Applicant: Cisco Technology, Inc.

Inventor： Yibin Yang ,  Liqin Dong ,  Chia Tsai ,  Weng Hong Chan ,  Yuchen Zhou ,  Fang Yang ,  Jeffrey Cai ,  Yuefeng Jiang ,  Xiaopu Zhang

IPC: H04L12/46 ,  H04L29/12 ,  H04L12/713

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L45/586 ,  H04L61/103 ,  H04L61/6022 ,  H04L2012/4629

Abstract: Techniques provided herein use aggregate endpoints in a virtual overlay network. In general, aggregate endpoints operate as a single receiving entity for certain packets/frames sent between different physical proximities of the virtual overlay network.

Abstract translation: 本文提供的技术使用虚拟覆盖网络中的聚合端点。 通常，聚合端点作为在虚拟覆盖网络的不同物理邻域之间发送的某些分组/帧的单个接收实体操作。

公开(公告)号：US20150117188A1

公开(公告)日：2015-04-30

申请号：US14582085

申请日：2014-12-23

Applicant: Cisco Technology, Inc.

Inventor： Yuchen Zhou ,  Chia Alex Tsai ,  Yibin Yang ,  Rajagopalan Janakiraman

IPC: H04L12/841 ,  H04L12/709 ,  H04L12/26 ,  H04L12/801

CPC classification number: H04L47/28 ,  H04L43/0852 ,  H04L45/245 ,  H04L47/12 ,  H04L47/30 ,  H04L47/323 ,  Y02D50/30

Abstract: In one embodiment, a period between periodic transmissions of protocol data units (PDUs) used to form or maintain a link aggregation group is initially set to a fixed value. When a stress condition is detected, the period between periodic transmissions of PDUs is increased from the initial value. When the stress condition is determined to have eased, the period between periodic transmissions of PDUs is reduced back toward the fixed value.

Abstract translation: 在一个实施例中，用于形成或维护链路聚合组的协议数据单元（PDU）的周期性传输之间的周期被初始设置为固定值。 当检测到应力条件时，PDU的周期性传输之间的周期从初始值增加。 当应力条件被确定为缓解时，PDU的周期性传输之间的时间间隔减小到固定值。