Abstract: 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.

Abstract: A device detects a signal condition for a link aggregation group (LAG) link, compares the detected signal condition to a signal threshold range, and enables one of a disabled state or a disabled timer state for the LAG link if the detected signal condition is outside the signal threshold range.

Abstract: A device enables a disabled timer state for a link aggregation group (LAG) link if a disabled timer condition is determined for the LAG link, and enables a disabled state for the LAG link if a disabled condition is determined for the LAG link in the disabled timer state.

Abstract: A device stores a link aggregation group (LAG) media access control (MAC) address, and assigns the LAG MAC address to two or more links in the device to define a LAG. The LAG MAC address is distinct from physical MAC addresses of the links in the LAG.

Abstract: An integrated web-based system for performing telecommunications system testing includes an application server that includes a plurality of test applications. The application server provides a graphical user interface to a plurality of workstation clients. Users can launch tests and monitor test results at the workstation clients. The test are performed by a plurality of telecommunications system test devices. The test devices include such devices as protocol analyzers, bit error rate testers, sniffers, and the like. A test access server provides an interface or bridge between the application server and each of the test devices. The test access server routes and provides appropriate translation of messages and commands between the test devices and the application process server.

Abstract: A method, and optical network management system is provided for monitoring an optical transmission system, including detecting degradation of an electrical signal converted from an optical signal transported via a plurality of optical network elements within the optical transmission system. The method, and optical network management system additionally perform the step of correlating the degradation in the electrical domain with degradation of the optical transmission system in an optical domain based a plurality of threshold values associated with an optical performance parameter corresponding each of the optical network elements. The method, and optical network management system further perform the step of determining whether a cause of the degradation in the electrical domain stems from one or more of the optical network elements according to the correlation.

Abstract: A method, and optical network management system is provided for monitoring an optical transmission system, including assigning a plurality of threshold values corresponding to a performance parameter associated with the optical transmission system. The method, and optical network management system further perform the step of identifying degradation of the optical transmission system based on which of the threshold values being exceeded.

Abstract: A method, and optical network management system is provided for monitoring an optical transmission system, including detecting an error condition in an electrical domain of the optical transmission system, and collecting data associated with optical performance of one or more optical network elements in response to the detected electrical degradation. The collected data is used to determine whether the one or more of the optical network elements are a source of the electrical degradation.

Abstract: A method, and optical network management system, including detecting, in an electrical domain, a change in performance of an optical transmission system, and determining a cause of the change based on data associated with an optical performance parameter. The data is collected from optical network elements that have a value for the optical performance parameter exceeding a threshold. Another embodiment includes an electrical monitoring device, including outputting an electrical signal that indicates a degradation in the performance, and transmitting a command to the optical network elements to collect the data. A further embodiment includes an optical network element, including transmitting an optical signal to the electronic monitoring point that converts the optical signal to the electrical signal, which is examined to detect the degradation, and transmitting the data to the network management system, if the value exceeds the threshold value.