公开(公告)号：US09860160B2

公开(公告)日：2018-01-02

申请号：US14984620

申请日：2015-12-30

Applicant: STMICROELECTRONICS, INC.

Inventor： Jonathan Evans ,  Lee Johnson ,  Amit Kumar Aggarwal

IPC: H04L12/66 ,  H04L12/707 ,  H04L12/801 ,  H04L12/46

CPC classification number: H04L45/24 ,  H04L12/4641 ,  H04L47/17

Abstract: A method and apparatus for multipath switching using per-hop virtual local area network (VLAN) remapping is disclosed. In the method and apparatus, a data packet is forwarded for transmission over one of a first port and a second port. The device identifies a VLAN ID of the data packet as a second VLAN ID and changes the second VLAN ID to a first VLAN ID. Then one or more criteria of a classification set entry for forwarding the data packet over the second port are evaluated. The data packet is forwarded over the second port if the criteria are met and the data packet is associated with the second VLAN ID. Alternatively, the data packet is forwarded over the first port and is associated with the first VLAN ID if a dynamic entry specifies the data packet is to be forwarded over the first port.

公开(公告)号：US09237109B2

公开(公告)日：2016-01-12

申请号：US14025607

申请日：2013-09-12

Applicant: STMicroelectronics, Inc. ,  Cisco Technology, Inc.

Inventor： Gale L. Shallow ,  Benjamin Nelson Darby ,  Jonathan Evans ,  Maynard Darvel Hammond ,  Zhifang J. Ni ,  Charaf Hanna

IPC: H04L12/28 ,  H04L12/823 ,  H04L12/801 ,  H04N21/61 ,  H04L12/743

CPC classification number: H04L47/323 ,  H04L45/7453 ,  H04L47/193 ,  H04N21/61 ,  H04N21/6118

Abstract: A system and method suited for improved overall data transmission having a hardware-based transceiver configured for transmitting upstream data with suppressed data packets. In TCP sessions between devices, a server seeks an “acknowledgement” that the downstream data transmission has been received by a client. Some data packets sent upstream may contain only TCP acknowledgement data and therefore may be combined with other purely TCP acknowledgement data packets in order to reduce the impact of the TCP acknowledgement packets on the overall upstream data throughput. In addition, this results in increased TCP performance in the downstream transmission direction as well because the algorithm enables replacing earlier arriving ACK packets with later arriving ACK packets which allows the device to send all TCP ACK information known to the suppressor at the earliest possible time.

Abstract translation: 一种适于改进总体数据传输的系统和方法，具有基于硬件的收发器，所述收发器被配置为用压缩的数据分组发送上行数据。 在设备之间的TCP会话中，服务器寻求客户端接收到下游数据传输的“确认”。 上游发送的一些数据包可能仅包含TCP确认数据，因此可以与其他纯TCP确认数据包组合，以减少TCP确认数据包对总体上行数据吞吐量的影响。 此外，这也导致在下游传输方向上提高的TCP性能，因为该算法能够用稍后到达的ACK分组来替换先前到达的ACK分组，这允许设备在最早的可能时间发送抑制器已知的所有TCP ACK信息。