Juniper IP SERVICES - CONFIGURATION GUIDE V 11.1.X, Configuration Manual

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ip flow-cache timeout active
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Use to define the activity timer, in minutes.
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Example
host1(config)# ip flow-cache timeout active 50
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Use the no version to return the activity timer to its default value (30 minutes).
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See ip flow-cache timeout.
Specifying the Inactivity Timer
Use the ip flow-cache timeout inactive command to specify a value for the inactivity
timer. The inactivity timer measures the length of time expired since the virtual
router recorded the last datagram for a given flow. When this timer expires, the
virtual router exports the flow cache entry from the cache and removes it. When, at
a later time, another datagram begins that uses the same flow characteristics, the
virtual router allocates a new flow cache entry, and the inactivity timer begins again.
The possible range for the inactivity timer value is 10 – 600 seconds. The default
value is 15 seconds.
ip flow-cache timeout inactive
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Use to define the inactivity timer, in seconds.
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Example
host1(config)# ip flow-cache timeout inactive 90
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Use the no version to return the inactivity timer to its default value (15 seconds).
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See ip flow-cache timeout.
Specifying Flow Export
Use the ip flow-export command to specify the location to which you want to export
the J-Flow datagrams.
ip flow-export
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Use to specify the location to which you want to export J-Flow datagrams or
specify an alternate source address for outbound export J-Flow datagrams.
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Example 1-Specifies the destination address for J-Flow datagrams
host1(config)# ip flow-export 192.168.2.73 2055 version 5 peer-as
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Example 2-Specifies the source address for outbound export J-Flow datagrams
host1(config)# ip flow-export source fastEthernet 5/0
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Use the no version to remove the export setting.
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See ip flow-export.
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Configuring Flow-Based Statistics Collection
JUNOSe 11.1.x IP Services Configuration Guide