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KEEPALIVE TIMER Characteristic
6-8 Configuring LAT Characteristics
KEEPALIVE TIMER Characteristic
Introduction
The KEEPALIVE TIMER characteristic maintains a virtual circuit between the access
server and service node when no messages are exchanged over a period of time. If the
keepalive timer expires, the access server sends a message to determine if the service
node is still reachable. If the service node fails to respond, the access server can time
out the virtual circuit.
Keepalive Timer Default Values
The keepalive timer value is a trade-off between fast circuit-down detection and
unnecessary network traffic. The factory-set default value of 20 seconds represents a
good compromise. For a heavily loaded Ethernet, use a value from 60 to 180. For
applications that require quick notification of a service node failure, use 10 seconds.
Keepalive Timer Example
The following example shows how to change the keepalive timer to 10 seconds:
Local> CHANGE SERVER KEEPALIVE 10