ASA Database Administration Guide
  Connection and Communication Parameters
    Connection parameters

LivenessTimeout connection parameter [LTO]

Function 

To control the termination of connections when they are no longer intact.

Usage 

Network server only.

All platforms except non-threaded UNIX applications.

Values 

Integer (in seconds)

Default 

120

If no LivenessTimeout value is set, the LivenessTimeout is controlled by the setting on the server, which defaults to 120 seconds.

Description 

A liveness packet is sent periodically across a client/server TCP/IP or SPX communications protocol to confirm that a connection is intact. If the client runs for the LivenessTimeout period without detecting a liveness request or response packet, the communication is severed.

Liveness packets are sent when a connection has not sent any packets for between one third and two thirds of the LivenessTimeout value.

When there are more than 200 connections to a server, the server automatically calculates a higher LivenessTimeout value based on the stated LivenessTimeout value. This enables the server to handle a large number of connections more efficiently.

Example 

• The following sets a LivenessTimeout value of 10 minutes

  LTO=600

Alternatively, you can set this parameter by entering its value in the LivenessTimeout text box of the Network tab of the ODBC Configuration dialog.