Red Hat, Inc.

Claircom Communications Group, Inc.

Andrew W Brandt

Vipul Sharma

Daniel Lee Becker

David Alan Roos

Adrian J Morris

Stephen C Carr

Mark James Yourcheck

Matthew M Mohebbi

Allan A D'Souza

Dave Sheets

James E Malcolm

Seok-Ho Kim

John R Clewer

Tim Campbell

A method and system provide information by which a host machine on which a virtual machine is running can be determined via a messaging channel between the virtual machines running on the host machine and the host machine. The virtual machine can then determine whether or not it should be executing. In order for the virtual machine to determine whether it can execute, it will need to know information about the host machine on which it will be running. Similarly, a virtual machine can determine whether it has been exposed to any viruses or whether a particular update has been run by knowing the host machines on which it has been run.

Method and system for determining a host machine by a virtual machine

A method and system provide tracking of a virtual machine by compiling information on the virtual machines in a network and sending the information to an administrative console. The administrative console can then determine the status of the virtual machines in the network. The administrative console can also establish a lineage of a virtual machine and the migration of a virtual machine from one host machine to another host machine. A virtual machine unique identifier assigned to each virtual machine by the system can be modified and used to track each virtual machine and associated host machine. A status can then be determined of the virtual machines, where the status can be a new virtual machine, a previously discovered virtual machine, a duplicated virtual machine, or a cloned virtual machine.

Tracking a virtual machine

Methods for managing a virtual machine wherein an administration console (AC) () transmits a query to a virtualization server (). The virtualization serverincludes at least one virtual machine (VM) (). AC () receives, in response to the query, identification of a VM () and establishes an authenticated communications link with a proxy machine () adapted for communicating with the VM (). AC () transmits over the authenticated communications link to proxy machine () the identification of the VM () and performs a management function with respect to the VM ().

Method for managing a virtual machine

The frequency and power of transmissions in a mobile communication system, such as an air-to-ground telephony system, are stabilized without a priori knowledge of the system gain factors or frequency references. The ground station monitors the available channels and modifies a vacant channel broadcast message to provide information that the channel is available. In this way, the air terminals have knowledge of all available channels. The ground station transmits a pilot signal. Upon request by a user for a dial tone at the air terminal, the air terminal selects a vacant channel and scans for the pilot signal. The air terminal estimates a distance to the ground station and sets a power level of a seizing transmission based on the estimated distance. The air terminal also estimates a Doppler frequency shift of the selected channel due to the relative movement of the air terminal with respect to the ground station and sets a frequency of the seizing transmission based on the estimated Doppler frequency shift. The air terminal then transmits a channel seizing signal at a reduced bandwidth less than a full normal bandwidth to the ground station at the set level and frequency. The ground station measures the level and frequency of the seizing signal and transmits to the air terminal information acknowledging the seizure of the selected channel and reporting the level and frequency of the seizing signal. The air terminal corrects the transmitted level and frequency and then switches the transmission bandwidth to the full normal bandwidth at the corrected level.

Stabilization of frequency and power in an airborne communication system

Growing community of inventors

Frederick, MD, United States of America

Andrew W Brandt