| Patent application number | Description | Published |
| 20080205265 | TRAFFIC ROUTING - A method may include forming a primary label switching path (LSP) from a first node to a second node, where the primary LSP has a path metric that is less than a predetermined value. The method may also include detecting a failure in the primary LSP and identifying a second path from the first node to the second node that has a path metric that is less than the predetermined value. The method may further include routing data via the second path in response to the failure in the primary LSP. | 08-28-2008 |
| 20080281980 | PSEUDOWIRE CIRCUIT EMULATION - A method includes establishing a first pseudowire between a first switching device and a second switching device. The method also includes receiving customer traffic that includes time division multiplexed data and formatting the time division multiplexed data as packets. The method further includes identifying a destination for the customer traffic, identifying the first pseudowire for forwarding the customer traffic and forwarding the customer traffic via the first pseudowire to the second switching device. | 11-13-2008 |
| 20090086643 | PATH TESTING AND SWITCHING - A method may include forming a first path from a first node to a second node and transmitting data via the first path. The method also includes measuring a performance parameter associated with transmitting data via the first path and determining whether the measured performance parameter meet a required performance parameter. The method also includes sending a notification to a customer associated with the first path when the measured performance parameter does not meet the required performance parameter, where the notification indicates that the first path is unavailable. | 04-02-2009 |
| 20110090802 | PATH TESTING AND SWITCHING - A method may include forming a first path from a first node to a second node and transmitting data via the first path. The method also includes measuring a performance parameter associated with transmitting data via the first path and determining whether the measured performance parameter meet a required performance parameter. The method also includes sending a notification to a customer associated with the first path when the measured performance parameter does not meet the required performance parameter, where the notification indicates that the first path is unavailable. | 04-21-2011 |