6 ADSL INTERFACE CONFIGURATIONCOMMANDSactivateSyntax activateundo activateView ATM (ADSL) interface viewParameter NoneDescription Use the activate command to activate an ADSL interface.Use the undo activate command to deactivate an ADSL interface.By default, an ADSL interface is active.An ADSL interface must be activated before it can transmit services. Activationrefers to training between ADSL office end and ATU-R end. During this process,the two parties examine line distance and conditions against the line configurationtemplate (which defines the ADSL criteria, channel mode, uplink and downlinkspeeds, and noise tolerance) and attempt to reach an agreement. If the trainingsucceeds, a communication connection is set up between the two parties forservice transmission.Contrary to activation, deactivation tears down the communication connectionbetween the two parties. To transmit services, you need to re-activate theinterface.The commands here are intended for test and diagnosis purposes. Unlike theshutdown and undo shutdown commands, the commands here only affects aG.SHDSL line.Since an ADSL interface is always on, it transits to the active state automatically atboot and remains in this state as long as the link is in good condition. The routertests the performance of the line regularly. Once it finds that the line performanceis deteriorating, it automatically deactivates, retrains, and then reactivates the line.Example # Activate ADSL interface 2/0. system-view[Sysname] interface atm 2/0[Sysname-Atm2/0] activate
