Cisco Technology, Inc.

James Ronald Holland, Jr

Muhammad Khalid Yousuf

Adam Laurence Taylor

Neil McGill

Sudhir Kumar Rustogi

Earl Hardin Booth, Iii

Jeffrey David Haag

In one implementation, an original physical profile file and a configuration baseline are stored for a virtual machine. The physical profile file includes physical characteristics of a physical device running the virtual machine. The configuration baseline includes configuration settings or attributes of the instance of the virtual machine. A network device detects current value for at least one physical characteristic and compares the current value to the original physical profile file. When the current values deviate enough from the original physical profile file to exceed a threshold amount of deviation that is permissible, the network device determines that the virtual machine has been moved to another physical device. In response, the network device monitors current configuration settings or attributes with respect to the configuration baseline in order to detect an unauthorized usage of the virtual machine.

Detection of unauthorized use of virtual resources

Grouping pseudowires based on hardware interfaces and configured control paths enables improved pseudowire failover performance. Signaling status changes (e.g., from standby to active status) is facilitated by using group IDs for the pseudowire groups, thereby enabling improved failover performance when there is disruption in the network.

System and method for providing improved failover performance for pseudowires

Growing community of inventors

Raleigh, NC, United States of America

James Ronald Holland, Jr