Digi TransPort WR31 User Manual page 235

Configure network interfaces
Keep this interface up for at least n seconds
If you set this parameter to a non-zero value, ISDN will not close the connection for the specified
period, even if the link is inactive.
Close this interface
After n seconds
The maximum time that this ISDN Interface may remain connected during any one session. After
this time, the ISDN link is deactivated.
if it has been up for n minutes in a day
The maximum time that this ISDN interface may remain connected during any one day. After this
time, the ISDN link is deactivated.
If the link has been idle for n seconds
The ISDN interface closes the connection if the link is inactive for the length of time specified by
this parameter.
Alternative idle timer for static routes n seconds
An alternative Inactivity timeout for use in conjunction with the Use 2nd inactivity timeout when
this route becomes available parameter on the Configuration > Routing > Routing > Static
Route n pages. The router uses this timeout until the PPP next deactivates only. After that, it
uses the normal timeout value.
If the link has been idle for s seconds
The router deactivates this interface after the time specified in this text box if it detects that the
link has not passed any traffic for that period.
Alternative idle timer for static routes s seconds
An alternative inactivity timeout for use in conjunction with the Make PPP n interface use the
alternative idle timeout when this route becomes available parameter on the Configuration
> Network > IP Routing/Forwarding > Static Routes > Routes n > Advanced web page. The
router uses this timeout until the PPP instance next deactivates only. After that, it uses the
normal timeout value.
If the link has not received any packets for s seconds
The amount of time that the router waits without receiving any PPP packets before
disconnecting. The timer is reset with each received PPP packet.
If the negotiation is not complete in s seconds
The maximum time (in seconds) allowed for the PPP negotiation to complete. If negotiations
have not completed within this period, the interface is deactivated.
Digi TransPort WR Routers User Guide
Configure ISDN interfaces
235