Timers

Pre-emption Timer

This is the time in seconds that a connection must have been open before it can be closed (pre-empted). If all X.25 virtual circuits available to IP are in use and an IP packet arrives for transmission to a new destination, Solstice X.25 closes one of the existing connections--the one that has been idle the longest. The pre-emption timer determines the minimum time a connection must be open before it can be pre-empted in this way.

When setting this timer, take into account the amount of traffic on your link and the speed your link runs at. The default is suitable for links running at 9600 bps.

Hold Down Timer

The minimum amount of time, in seconds, to wait before re-trying a call to a host after an unsuccessful call.

Disconnection Timer

This is the time, in tenths of a second, that a connection to a given network can remain idle before being closed. This timer is configurable for each X.25 network to which you connect. When the disconnection timer expires, if there is no data on a connection, the virtual circuit to the X.25 network is closed. If data arrives from IP after this, the circuit is reopened.

When setting this timer, take into account the amount of traffic on your link and the speed your link runs at. The default is suitable for links running at 9600 bps.