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Output queue of multi-layer network device and related management method of output queue of multi-layer network device

An output queue and network device technology, which is applied in the field of output queues and management of output queues with multi-packet linked lists, can solve problems such as high cost and large chip area.

Active Publication Date: 2019-02-22
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, 2R2W SRAM has large chip area and high cost

Method used

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  • Output queue of multi-layer network device and related management method of output queue of multi-layer network device
  • Output queue of multi-layer network device and related management method of output queue of multi-layer network device
  • Output queue of multi-layer network device and related management method of output queue of multi-layer network device

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Embodiment Construction

[0014] Certain terms are used in the description and claims to refer to particular elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The "comprising" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that the first device is coupled to the second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0015] The concept of the present invention is to imple...

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Abstract

The invention provides an output queue of a multi-level network device, which includes a first processing circuit, a plurality of storage devices, and a second processing circuit. The first processing circuit generates packet selection information based on the arrival sequence of the plurality of packets. The storage device stores a plurality of packet linked lists for output queues. According to the packet selection information, the second processing circuit dequeues packets from the output queue by selecting a link list entry from the packet link list; wherein, each of the plurality of storage devices is a 1R1W SRAM.

Description

[0001] cross reference [0002] This application claims priority to U.S. Provisional Patent Application No. 61 / 816,247 filed April 26, 2013; priority is claimed to U.S. Provisional Patent Application No. 61 / 910,967 filed December 03, 2013 and claiming priority to U.S. Provisional Patent Application No. 14 / 252,789 filed on April 15, 2014. These patent applications are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to packet forwarding, in particular to an output queue of a multi-plane network device and a related method for managing the output queue with a multi-packet link list. Background technique [0004] A network switch is a computer network device that connects different electronic devices. For example, a network switch receives an incoming packet generated from a source electronic device connected to the network switch, and transmits a transmitted packet derived from the received packet to one or more desti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/861H04L49/9015
CPCH04L49/9015
Inventor 林利莲刘大行林瑞哲
Owner MEDIATEK INC