The settings in this section specify how long a flow can remain idle before being automatically closed. A flow is idle if no data being sent through it. Please note that each flow has two internal timeout counters: one for each direction. A flow is closed if either of the two counters reach zero.

Flow Lifetime TCP Init

Specifies in seconds how long a TCP flow that is not yet fully established is allowed to idle before being closed.

System:/> set Settings FlowTimeoutSettings FlowLifetimeTCPInit=60

Default: 60

Flow Lifetime TCP No Data

Specifies in seconds how long a newly established flow without any data being transmitted may be idle before being closed.

System:/> set Settings FlowTimeoutSettings FlowLifetimeTCPNoData=60

Default: 60

Flow Lifetime TCP Open

Specifies in seconds how long a fully established TCP flow may idle before being closed.

System:/> set Settings FlowTimeoutSettings FlowLifetimeTCPOpen=262144

Default: 262144

Flow Lifetime TCP Closing

Specifies in seconds how long a closing TCP flow may remain idle before finally being closed. Flows reach this state when a packet with its FIN flag on has passed in any direction.

System:/> set Settings FlowTimeoutSettings FlowLifetimeTCPClosing=80

Default: 80

Flow Lifetime TCP Stateless

Specifies in seconds the flow idle lifetime in seconds for stateless TCP connections.

System:/> set Settings FlowTimeoutSettings FlowLifetimeTCPClosing=130

Default: 130

Flow Lifetime UDP

Specifies in seconds how long UDP flows may idle before being closed. This timeout value is usually low, as UDP has no way of signaling when the flow is about to close.

System:/> set Settings FlowTimeoutSettings FlowLifetimeUDP=130

Default: 130

Flow Lifetime ICMP

Specifies in seconds how long an ICMP flow (for example, an ICMP ECHO) can remain idle before it is closed.

System:/> set Settings FlowTimeoutSettings FlowLifetimeICMP=8

Default: 8

Flow Lifetime SCTP Stateless

Specifies in seconds how long a stateless SCTP flow can remain idle before it is closed.

System:/> set Settings FlowTimeoutSettings FlowLifetimeSCTPStateless=130

Default: 130

Flow Lifetime SCTP Stateful

Specifies in seconds how long a stateful SCTP flow can remain idle before it is closed.

System:/> set Settings FlowTimeoutSettings FlowLifetimeSCTPStateful=600

Default: 600

Flow Lifetime Other

Specifies in seconds how long flows using an unknown protocol can remain idle before they are closed.

System:/> set Settings FlowTimeoutSettings FlowLifetimeOther=130

Default: 130