公开(公告)号：US20170171116A1

公开(公告)日：2017-06-15

申请号：US15444610

申请日：2017-02-28

Applicant: Cisco Technology, Inc.

Inventor： Jianquan Lou ,  Ming Chi ,  Haibin Tang ,  Zhou Yang ,  Jinghan Yu ,  Qiuhua Zhu ,  Joel Goergen ,  Hugh Barrass

IPC: H04L12/861 ,  G06F1/32

CPC classification number: H04L49/9084 ,  G06F1/3206 ,  G06F1/3209 ,  G06F1/3225 ,  G06F1/3234 ,  G06F1/3275 ,  G06F1/3278 ,  G06F1/3287 ,  G06F9/5083 ,  H04L12/46 ,  H04L47/6215 ,  H04L49/90 ,  H04L67/10 ,  H04L2012/568 ,  Y02D10/14 ,  Y02D10/157 ,  Y02D10/171 ,  Y02D50/20

Abstract: In some implementations, a method includes analyzing an amount of data communicated by a set of network interfaces. The data communicated by the set of network interfaces is processed by a set of functional units and a set of queues includes the data communicated by the set of network interfaces. The method also includes activating a first functional unit of the set of functional units when a first size of a first queue of the set of queues is above a first threshold. The method further includes deactivating the first functional unit of the set of functional units when the first size of the first queue of the set of queues is below a second threshold. The method further includes causing the data to be forward to one or more active functional units via a data interconnect coupled to the set of network interfaces and the set of functional units.

公开(公告)号：US20160308777A1

公开(公告)日：2016-10-20

申请号：US15189402

申请日：2016-06-22

Applicant: Cisco Technology, Inc.

Inventor： Hugh Barrass

IPC: H04L12/805 ,  H04L12/813 ,  H04L12/801 ,  H04L12/851

CPC classification number: H04L47/365 ,  H04L47/12 ,  H04L47/127 ,  H04L47/20 ,  H04L47/245 ,  H04L47/34 ,  H04L2212/00

Abstract: An example method for intermittent encapsulation of preemptable network traffic at a network node can include receiving a frame at the network node and determining if the frame is a preemptable frame. A preemptable frame is a frame that can be preempted, suspended, interrupted, etc. after transmission begins in order to transmit a preemptive frame. If the frame is a preemptable frame, the method can include determining if the preemptable frame satisfies a selective encapsulation rule. If the preemptable frame does not satisfy the selective encapsulation rule, the method can include transmitting the preemptable frame from the network node without encapsulation. Alternatively, if the preemptable frame satisfies the selective encapsulation rule, the method can include encapsulating and transmitting the preemptable frame from the network node. The preemptable frame can be encapsulated with a preemption header and/or a preemption trailer.

公开(公告)号：US20160259387A1

公开(公告)日：2016-09-08

申请号：US15152962

申请日：2016-05-12

Applicant: Cisco Technology, Inc.

Inventor： Hugh Barrass ,  Anoop Vetteth

IPC: G06F1/26 ,  H04L12/10

CPC classification number: G06F1/266 ,  G01R31/041 ,  G06F1/26 ,  H02J4/00 ,  H04B3/02 ,  H04L12/10 ,  H04L12/40045 ,  Y02D30/30 ,  Y02D30/32

Abstract: A method for verifying interconnection of a PSE and PD with 4-pair PoE capabilities includes performing a first classification event on first and second pairs, respectively, and detecting a first predetermined class current on first and second sets of twisted pairs, respectively. The method includes performing a second classification event on first and second pairs, respectively, and detecting first and second predetermined class currents on first and second pairs, respectively. After expiration of a first variable delay period related to a first pseudo-random variable of the PSE, the method includes performing a third classification event on the first pair and detecting a first derived class current on the first pair. After expiration of a second variable delay period related to a second pseudo-random variable of the PD, the method includes performing the third classification event on the second pair and detecting a second derived class current on the second pair.

公开(公告)号：US09369176B2

公开(公告)日：2016-06-14

申请号：US14076553

申请日：2013-11-11

Applicant: Cisco Technology, Inc.

Inventor： Hugh Barrass ,  Anoop Vetteth

IPC: H04B3/02 ,  H02J4/00 ,  G06F1/26 ,  H04L12/10 ,  H04L12/40 ,  H04L5/14 ,  G01R31/04

CPC classification number: G06F1/266 ,  G01R31/041 ,  G06F1/26 ,  H02J4/00 ,  H04B3/02 ,  H04L12/10 ,  H04L12/40045 ,  Y02D30/30 ,  Y02D30/32

Abstract: A method for verifying interconnection of a PSE and PD with 4-pair PoE capabilities includes performing a first classification event on first and second pairs, respectively, and detecting a first predetermined class current on first and second sets of twisted pairs, respectively. The method includes performing a second classification event on first and second pairs, respectively, and detecting first and second predetermined class currents on first and second pairs, respectively. After expiration of a first variable delay period related to a first pseudo-random variable of the PSE, the method includes performing a third classification event on the first pair and detecting a first derived class current on the first pair. After expiration of a second variable delay period related to a second pseudo-random variable of the PD, the method includes performing the third classification event on the second pair and detecting a second derived class current on the second pair.

Abstract translation: 用于验证具有4对PoE能力的PSE和PD的互连的方法包括分别在第一对和第二对上执行第一分类事件，并且分别在第一组和第二组双绞线上检测第一预定类电流。 该方法包括分别在第一和第二对上执行第二分类事件，并分别检测第一和第二对上的第一和第二预定类电流。 在与PSE的第一伪随机变量相关的第一可变延迟时段期满之后，该方法包括在第一对上执行第三分类事件并检测第一对上的第一派生类电流。 在与PD的第二伪随机变量相关的第二可变延迟时段期满之后，该方法包括在第二对上执行第三分类事件并检测第二对上的第二派生类电流。