公开(公告)号：US20150081865A1

公开(公告)日：2015-03-19

申请号：US14072745

申请日：2013-11-05

Applicant: BROADCOM CORPORATION

Inventor： Predrag KOSTIC ,  Darren Duane NEUMAN ,  David WU ,  Anand TONGLE ,  Rajesh Shankarrao MAMIDWAR ,  Milomir ALEKSIC

IPC: H04L12/70

CPC classification number: H04L49/505

Abstract: A system for lossless switching of traffic in a network device may be implemented when a network switch is integrated into a gateway device, or with any other data source. A processor of the gateway device may receive queue depth information for queues of the network switch. The processor may prevent data from being transmitted to congested queues of the network switch, while allowing data to be transmitted to uncongested queues. In this manner, data loss can be avoided through the network switch for data sourced from the gateway device, such as audio-video data retrieved from a hard drive, audio-video data received from a tuner, etc. Furthermore, re-transmission at higher layers can be reduced. Since the subject system observes congestion for each individual queue, only traffic destined to that particular, congested, queue is affected, e.g. paused. Traffic to non-congested queues is not affected, regardless of traffic class or egress port.

Abstract translation: 当网络交换机集成到网关设备或与任何其他数据源时，可以实现用于网络设备中的业务的无损切换的系统。 网关设备的处理器可以接收网络交换机队列的队列深度信息。 处理器可以防止数据被发送到网络交换机的拥塞队列，同时允许数据被发送到未被占用的队列。 以这种方式，可以通过用于从网关设备获取的数据的网络交换机（例如从硬盘驱动器检索的音频 - 视频数据，从调谐器接收的音频 - 视频数据）等来避免数据丢失。此外， 可以降低更高的层数。 由于主体系统观察到每个单独队列的拥塞，所以仅限于该特定的拥塞队列的业务受到影响。 暂停了 对非拥塞队列的流量不受流量级别或出口端口的影响。