[IPFIX] clarification questions

Dear IPFIX experts,

From RFC 6728,

1.       Section 4.3.2

o   Is there a way to periodically export the flows if we are using a TimeoutCache or NaturalCache ?

2.       Suppose we want to populate the cache only with long-lived large flows (see Note1  below for data model definitions)

o   One way to achieve this would be to have a selection process, using a unique observation domain, which filters the long-lived large flows. Are any other better ways ?

3.       Continuing from 3) - suppose we want to sample the other flows (not the long-lived large flows)

o   Is there a way to not include the long-lived large flows in the selection process ?


Note 1:

-          observationInterval: The minimum time interval to observe a flow for performing further processing of the flow. Unit is in seconds.

-          bandwidthThreshold: The minimum bandwidth of the flow during the observation interval for declaring the flow a long-lived large flow. Unit is in Mbps.
For example, a flow which is at or above 10 Mbps (bandwidthThreshold )for a time period of at least 30 seconds (observationInterval) could be declared a long-lived large flow.

--
Thanks,
Ram (aka Ramki)

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