The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2020
Filed:
Sep. 27, 2018
Amazon Technologies, Inc., Seattle, WA (US);
Srinivasan Ramabadran, Sunnyvale, CA (US);
Hardeep Singh, Fremont, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A source network device can inject a probe into any one of multiple pipelines by supplying control bits for controlling a demultiplexer through which the probe passes. The control bits of the probe are coupled to the demultiplexer select lines so as to couple an input port of the demultiplexer to one of multiple output ports. As a result, an agent operating on the source network device can test any desired pipeline. In a one-hop embodiment, the source network device redirects the probe back to the agent without transmission to a neighbor. A two-hop embodiment uses a neighbor device to reflect the probe back to the source device in order to test forwarding states of the source network device.