DELT is a dual-ended test that requires equipment at both ends of the copper loop. While this requirement prevents DELT from being used on loops where no consumer premise equipment (CPE) has yet been deployed, DELT offers a deeper set of loop tests, and can provide very valuable information on the condition of a copper loop. DELT is primarily used for reactive tests on a loop after a modem has been deployed to either help troubleshoot a line or capture a baseline of loop characteristics. However DELT can also assist in predetermining line capability to support new services, such as voice and video.
To update the displayed data, click the Refresh button.
To enable the DELT buttons, check the box next to a port.
To change the state of the line to Up, click the Admin Up button.
Note: To run DELT, a modem must be connected to the port.
To return the line to admin up, click the Admin Up button.
To go to the screen where DELT testing can begin, click the Start Test button.
To view the status of the DELT testing, click the Poll Test Status button. (The Admin state must be down.)
To view upstream results, click the Upstream Result button.
To view the downstream results, click the Downstream Result button.
To view upstream SNR, click the Upstream SNR button.
To view downstream SNR, click the Downstream SNR button.
DELT Status
Port | A unique value for each interface. |
Oper Status |
Indicates the operational status of the interface. |
Status | The administrative status of the interface.
Up: The interface is enabled and up, and the status of the interface should become standby or operational. Down: The interface is disabled and down, and the status of the interface would become shutdown. |
Status |
The status of the current DELT test. Status: inProgress - the test is currently running. stoppedInProgress - a request to stop the test is still in progress. complete - the test has been run at least once since system reset and has completed. notStarted - the test has not been run on this interface since last system reset. resultsCleared - the entries in the test results table, Lc and Lnf, were cleared. aborted - the test was aborted by the user before it could complete. In this case, the Lc and Lnf tables will have been removed. timedOut - the test was aborted automatically because it did not complete before the timeout specified by the Time Out. In this case, the Lc and Lnf tables will have been removed. unsupported - the device does not support DELT. portActive - port must be OUT-OF-SERVICE to run DELT. measurementsInvalid - DELT returns invalid measurements. |
Time Completed |
The date and time stamp corresponding to the last completion of a test where valid results were obtained. If no test results are available, perhaps in the situation where no test has ever been started, this object shall return a value that has all the fields set to zero. |
DELT Device |
Chip set used to perform the DELT test. |
March 24, 2012