Cisco Technology, Inc.

Rakesh Chopra

Mandy Hin Lam

M Baris Dogruoz

Mark C Nowell

Mark Andrew Gustlin

Joel Richard Goergen

John T Chapman

Brian Eliot Weis

Richard J Wong

Michael Paul Overcash

Laurent Montini

Hugo J W Vliegen

Yi Tang

Kuralvanan Arangasamy

Chirag Shroff

Kannan Varadhan

Presented herein is a plurality of arrangements of cold plates having interior chambers. The interior chamber includes a plurality of fins with a first fin zone and a second fin zone. The cold plate further includes a first fluid inlet and a first fluid outlet. The cold plates can be connected such that each cold plate allows unidirectional flow or counter flow configurations. Unidirectional flow or counter flow cold plates can be arranged in rows and in combination of rows.

Thermal management of high capacity optics in dense arrangements

A network communications device includes a chassis, a plurality of modules removably inserted into a plurality of slots in the chassis. A coolant is delivered to a first group of the plurality of modules with a first flow control valve in a first cooling loop and the coolant is delivered to a second group of the plurality of modules with a second flow control valve in a second cooling loop. The network communication device further includes a plurality of sensors for monitoring a temperature in the first cooling loop and the second cooling loop and a control system for controlling delivery of the coolant to the first group and the second group, where the control system controls transmitting a signal to one of the first flow control valve and the second flow control valve to modify a flow of the coolant.

Liquid cooling distribution in a modular electronic system

In one embodiment, an apparatus includes an enclosure configured for connection to a printed circuit board, a substrate within the enclosure, a plurality of components mounted on the substrate, a fluid inlet connector, a fluid outlet connector, and a plurality of flow channels within the enclosure, at least one of the components disposed in each the flow channels and segregated from other components in another of the flow channels. The enclosure is configured for immersion cooling of the components.

Localized immersion cooling enclosure with thermal efficiency features

Techniques for temperature control for multiple dies in an element. A temperature of a first die is measured, in an element comprising the first die and a second die. The second die includes at least a portion of a controller. The temperature of the first die is changed by adjusting activity, from the second die to the first die, based on a target temperature for the first die and the measured temperature for the first die.

Temperature control for multiple die types in a common package

In one embodiment, an apparatus is configured for insertion into a network device and includes a printed circuit board, at least one electronic component mounted on the printed circuit board and configured for direct air-cooling, and an enclosure comprising a plurality of electronic components, an electrical connector, a fluid inlet connector, and a fluid outlet connector. A dielectric liquid is disposed within the enclosure for immersion cooling of said plurality of electronic components during operation of the network device.

Localized immersion cooling enclosure

Embodiments herein describe coupling traditional fan and shaper control along with aggregated knowledge of the temperature history of a hardware device to optimally manage the temperature of the hardware device to preserve its expected life while also providing the lower power, best performing solution possible. In one embodiment, a cooling application manages the expected life by trading off performance and power versus temperature to achieve a desired (or accepted) lifetime. In one embodiment, the cooling application calculates a historical temperature value for the hardware device which is then used to determine the expected life of the hardware device.

Hardware device temperature control with expected lifetime calculation

Presented herein are optical module cage designs and heatsink configurations for improved air cooling of pluggable optical modules disposed within the optical module cages. The designs and configurations presented herein facilitate efficient air cooling of higher power pluggable optical modules by enhancing airflow through the optical module cages, increasing contact between the optical modules and the heatsinks, and/or increasing the heatsink dissipation surface area.

Air cooled cage design

In one embodiment, a network communications device includes a chassis, a plurality of modules removably inserted into a plurality of slots in the chassis, at least a portion of the modules each comprising a connector for receiving coolant for cooling components on the module, a controller for controlling coolant distribution to the modules, and a leak detection system for identifying a leak of the coolant and transmitting an indication of the leak to the controller.

In one embodiment, an optical module cage includes a first opening for slidably receiving an optical module, a second opening positioned adjacent to the first opening for slidably receiving a riding heatsink separate from the optical module or an integrated heatsink connected to the optical module, and a guide rail interposed between the first opening and the second opening, wherein the guide rail is configured to support the riding heatsink and not interfere with insertion of the integrated heatsink.

Optical module cage with configurable heatsink

In one embodiment, a computing device receives an image that has been signed with a first key, wherein the image includes a first computational value associated with it. A second computational value associated with the image is determined and the image is signed with a second key to produce a signed image that includes both the first and second computational values. Prior to loading the dual-signed image, the computing device attempts to authenticate the dual-signed image using both the first and second computational values, and, if successful, loads and installs the dual-signed image.

Dual-signed executable images for customer-provided integrity

In one embodiment, an apparatus includes a chassis comprising a plurality of slots for receiving a plurality of modules, a first group of the modules received in a first orientation and a second group of the modules received in a second orientation orthogonal to said first orientation, and a coolant distribution module inserted into one of the slots in the first orientation for distributing coolant to at least one of the modules in the second group of modules. A method for distributing coolant to the modules is also disclosed herein.

Growing community of inventors

Menlo Park, CA, United States of America

Rakesh Chopra