公开(公告)号：US11671451B1

公开(公告)日：2023-06-06

申请号：US16532297

申请日：2019-08-05

Applicant: Amazon Technologies, Inc.

Inventor： Sanjeev Gupta ,  Frederick David Sinn ,  Venkata Satish Kumar Vangala ,  John Mark Glotzer

IPC: H04L9/40

CPC classification number: H04L63/162 ,  H04L63/061 ,  H04L63/0869 ,  H04L63/0876

Abstract: A secure communication channel is established between network devices separated by an unsecured physical space by dynamically performing server/client resolution based on comparison of unique identifiers of the devices. After a link between a first network device and a second network device is established, the devices exchange start frames in accordance with a network security protocol such as the Media Access Control Security (MACsec) protocol. Comparison logic at the first network device compares a value of a unique identifier of the first network device to a value of a unique identifier of the second network device obtained from the start frame transmitted by the second network device, and vice versa. Based on the comparison, one of the devices assumes a server/authenticator role, and the other device assumes a client/supplicant role. The devices operate in their determined roles to perform an authentication process and thereby establish a secure communication channel.

公开(公告)号：US11967994B1

公开(公告)日：2024-04-23

申请号：US17490973

申请日：2021-09-30

Applicant: Amazon Technologies, Inc.

Inventor： Poorya Saghari ,  Alaa Adel Mahdi Hayder ,  Omid Momtahan ,  Venkata Satish Kumar Vangala ,  Aliasghar Eftekhar

IPC: H04B10/03 ,  H04B10/079 ,  H04B10/25 ,  H04B10/40 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04B10/40 ,  H04B10/0793 ,  H04B10/25 ,  H04J14/0227 ,  H04Q11/0005 ,  H04Q11/0067 ,  H04Q2011/0039

Abstract: An optical transceiver includes a built-in optical switch to switch between diverse fiber paths in switches in a datacenter or in switches between two datacenters. The built-in optical switch can be used to switch between racks in a datacenter to increase capacity for any rack that requests it. A controller, which receives a signal from a server computer in one of the racks, can be external to the optical transceiver or within the optical transceiver. In either case, the server computer can be provided with additional bandwidth when needed. For connections between datacenters, the built-in optical switch allows for optical line protection, but without the need for a splitter circuit, which incurs a significant power loss and requires a more expensive transceiver. Consequently, the built-in optical switch within an optical transceiver can be used in a variety of contexts to increase efficiency and reduce overall costs for network devices.

公开(公告)号：US10797792B1

公开(公告)日：2020-10-06

申请号：US16217841

申请日：2018-12-12

Applicant: Amazon Technologies, Inc.

Inventor： Omid Momtahan ,  Waruna Fernando ,  Poorya Saghari ,  Venkata Satish Kumar Vangala

IPC: H04B10/079 ,  H04B10/25

Abstract: Information from optical modules can be combined with information from network switches to help detect and pinpoint problems along a network communications path. A control path between a network switch and a microcontroller of an optical module can be used to obtain monitoring and debugging data from a digital signal processor (DSP) of the optical module. The DSP data can be used with performance data from the network switch to separately determine the health of the electrical and optical sections of the communications link. The ability to pinpoint problems with the communications link enables appropriate remedial actions to be determined and taken automatically.