301Predefined user rolesnetwork-adminParametersinterval: Specifies the holddown timer value in the range of 5 to 65535 seconds.Usage guidelinesThe holddown timer starts when a link is disconnected. A call attempt to bring up this link can bemade only after the timer expires. This is to prevent a remote SPCS from being overloaded.To leave enough time for callback, set the holddown timer on the client 10 or more seconds longerthan that on the server. As a best practice, set the link holddown timer to 5 seconds (the default) onthe server, and 15 seconds on the client.Examples# Set the link holddown timer to 15 seconds for Serial 2/1/0. system-view[Sysname] interface serial 2/1/0[Sysname-Serial2/1/0] dialer timer enable 15dialer timer idleUse dialer timer idle to set the link idle-timeout timer.Use undo dialer timer idle to restore the default.Syntaxdialer timer idle idle [ in | in-out ]undo dialer timer idleDefaultThe link idle-timeout timer is 120 seconds, and only outgoing interesting packets reset this timer.ViewsDialup interface viewPredefined user rolesnetwork-adminParametersidle: Specifies the link idle-timeout timer value in the range of 0 to 65535 seconds.in: Allows only incoming interesting packets to reset the timer.in-out: Allows both incoming and outgoing interesting packets to reset the timer.Usage guidelinesThe link idle-timeout timer starts when a link is established. If no interesting packets arrive before thetimer expires, DDR disconnects the link.If you do not specify the in or in-out keyword, only outgoing interesting packets reset the timer.If the timer is set to 0, DDR will never disconnect the link. For a PPPoE client application, if the t imeris set to 0, a dialup connection is created automatically and remains active permanently.Examples# Set the link idle-timeout timer to 50 seconds on Serial 2/1/0. system-view
