Digi TransPort, Руководство пользователя

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Configure PSTN interfaces
Digi TransPort User Guide 254
Advanced PSTN parameters
Metric
The route metric that should be applied to this interface. See PPP parameters on page 293 for
more detail.
Enable “Always On” mode of this interface
When enabled, causes the following two options to appear.
On/On and return to service immediately
Select whether the always-on functionality should simply be enabled or whether the
additional facility to return the interface to the In Service state should be applied.
Put this interface “Out of Service” when an always-on connection attempt fails
Normally, always-on interfaces do not go out of service unless they have connected at least
once. When checked, this checkbox causes the router to put the interface out of service even
if the first connection attempt fails.
Attempt to re-connect after s seconds
The length of time in seconds that the router should wait after an always-on PPP connection
has been terminated before trying to re-establish the link.
If an inhibited PPP interface is connected, attempt to re-connect after s seconds
The value in this text box takes precedence over the previous parameter when another PPP
instance that is usually inhibited by this one is connected. This parameter would typically be
used to reduce the connection retry rate when a lower priority PPP instance is connected.
Wait s seconds after power-up before activating this interface
The initial delay that the router applies before activating the PPP instance after power-up.
After the initial power-up delay the normal always-on activation timers apply. If set to zero, no
delay will be applied.
Control when this interface can connect using Time band n
These two controls, the check box and drop-down list, determine whether the Time Band
function should be applied to this interface. Checking the checkbox enables the functionality
and the desired time band instance is selected from the drop-down list. Time Band
functionality is explained in the Configure time bands on page 488 section.
Keep this interface up for at least s seconds
The minimum period that the PPP interface should remain available. This means that even if
the link becomes inactive before this period expires, the connection remains open.
Close this interface
After s seconds
The maximum time that the link remains active in any one session. After this time, the link is
deactivated.
If it has been up for m minutes in a day
The router deactivates the PPP instance after it has been active for the value specified in this
text box.