公开(公告)号：US20160337267A1

公开(公告)日：2016-11-17

申请号：US14737127

申请日：2015-06-11

Applicant: Broadcom Corporation

Inventor： Shr-Jie TZENG

IPC: H04L12/935 ,  H04J3/06 ,  H04L12/879

CPC classification number: H04L49/30 ,  H04J3/0661 ,  H04J3/0697 ,  H04L49/901

Abstract: A system and method for limited the processing of interrupt-causing messages within a communication device. A user is able to set various values for dictating the bounds of a leaky bucket processor. The leaky bucket maintains and monitors a count, and dictates whether message processing is permitted or prohibited based on the count. When a message is processed, the count is decremented. When a predetermined time passes without processing a message, the count is incremented. If the count ever reaches a predetermined low threshold value, message processing is prohibited for a predetermined time On the other hand, if the count returns to a predetermined high threshold value, processing is permitted.

Abstract translation: 一种用于限制通信设备内的中断引发消息的处理的系统和方法。 用户能够设置用于指定泄漏桶处理器的边界的各种值。 泄漏桶维护和监视计数，并指示是否允许或禁止基于计数的消息处理。 处理消息时，计数递减。 当预定时间经过而不处理消息时，计数增加。 如果计数达到预定的低阈值，则在预定时间内禁止消息处理。另一方面，如果计数返回到预定的高阈值，则允许处理。

公开(公告)号：US20160182339A1

公开(公告)日：2016-06-23

申请号：US15057009

申请日：2016-02-29

Applicant: Broadcom Corporation

Inventor： Shr-Jie TZENG

IPC: H04L12/26

CPC classification number: H04L43/106 ,  H04J3/0661 ,  H04J3/0667 ,  H04L1/00 ,  H04L1/0061

Abstract: A method of generating timestamp information irrespective of a packet format include generating an egress timestamp corresponding to a time at which a first egress packet associated with a synchronization event is transmitted to a network medium; storing the egress timestamp in a memory based on an egress identifier; and transmitting a second egress packet associated with the synchronization event with the stored egress timestamp being included in the transmitted second egress packet for timing synchronization in the network medium. The method also includes receiving an incoming packet from the network medium; generating an ingress timestamp corresponding to a time at which the incoming packet is received; replacing an error detection field included in the incoming packet with an error detection tag; inserting the ingress timestamp into the error detection tag; and providing the incoming packet with the ingress timestamp to a processor for synchronization of a local clock.

公开(公告)号：US20150139251A1

公开(公告)日：2015-05-21

申请号：US14147025

申请日：2014-01-03

Applicant: BROADCOM CORPORATION

Inventor： Shr-Jie TZENG

IPC: H04J3/06 ,  H04L12/26

CPC classification number: H04L43/106 ,  H04J3/0661 ,  H04J3/0667 ,  H04L1/00 ,  H04L1/0061

Abstract: A method of generating timestamp information irrespective of a packet format include generating an egress timestamp corresponding to a time at which a first egress packet associated with a synchronization event is transmitted to a network medium; storing the egress timestamp in a memory based on an egress identifier; and transmitting a second egress packet associated with the synchronization event with the stored egress timestamp being included in the transmitted second egress packet for timing synchronization in the network medium. The method also includes receiving an incoming packet from the network medium; generating an ingress timestamp corresponding to a time at which the incoming packet is received; replacing an error detection field included in the incoming packet with an error detection tag; inserting the ingress timestamp into the error detection tag; and providing the incoming packet with the ingress timestamp to a processor for synchronization of a local clock.

Abstract translation: 生成与分组格式无关的时间戳信息的方法包括生成对应于与同步事件相关联的第一出口分组发送到网络介质的时间的出口时间戳; 基于出口标识符将出口时间戳存储在存储器中; 以及发送与所述同步事件相关联的第二出口分组，其中所存储的出口时间戳被包括在所发送的第二出口分组中，用于网络介质中的定时同步。 该方法还包括从网络介质接收输入分组; 产生对应于接收到所述传入分组的时间的入口时间戳; 用错误检测标签代替输入包中包含的错误检测字段; 将入口时间戳插入到错误检测标签中; 以及将具有入口时间戳的传入分组提供给处理器以同步本地时钟。

公开(公告)号：US20150063375A1

公开(公告)日：2015-03-05

申请号：US14477605

申请日：2014-09-04

Applicant: Broadcom Corporation

Inventor： Shr-Jie TZENG ,  Josef Lo

IPC: H04J3/06 ,  H04L29/06

CPC classification number: H04J3/0667 ,  H04J3/0673 ,  H04L12/56 ,  H04L47/28 ,  H04L69/22 ,  H04L69/28

Abstract: A system and method for timing synchronization between network nodes. The timing synchronization can conform to the Precision Time Protocol (PTP) as defined in the IEEE 1588 protocol. The timing synchronization can include the insertion of ingress and/or egress timestamps into packets. For example, timestamps can be inserted into reserved fields of the header of a packet. The timing synchronization can also include the utilization of one or more reserved fields to initiate the generation of a timestamp upon the transmission of the packet and/or the retrieval of a previously stored timestamp.

Abstract translation: 一种用于网络节点之间定时同步的系统和方法。 定时同步可以符合IEEE 1588协议中定义的精确时间协议（PTP）。 定时同步可以包括将入口和/或出口时间戳插入到分组中。 例如，可以将时间戳插入到分组报头的保留字段中。 定时同步还可以包括使用一个或多个保留字段来在分组的传输和/或检索先前存储的时间戳时发起时间戳的产生。