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Benoit Claise, Cisco Systems

Evaluation of NetFlow Version 9 Against IPFIX Requirements: changes from version 03 to 04 draft-claise-ipfix-eval-netflow-04.txt. Benoit Claise, Cisco Systems. Small Editorial Changes. Is it already implemented? Is it already in commercial use? ICMP Etc. Sampling.

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Benoit Claise, Cisco Systems

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  1. Evaluation of NetFlow Version 9 Against IPFIX Requirements:changes from version 03 to 04draft-claise-ipfix-eval-netflow-04.txt Benoit Claise, Cisco Systems

  2. Small Editorial Changes • Is it already implemented? • Is it already in commercial use? • ICMP • Etc... draft-claise-ipfix-eval-netflow-04.txt

  3. Sampling • From the evaluation team last report: Sampling, Extension Needed • Now, Total Compliance • Adding a sampling function to the metering process: Total Compliance • Removing a sampling function from the metering process: Total Compliance • Change sampling method: Total Compliance • Change sampling parameter: Total Compliance draft-claise-ipfix-eval-netflow-04.txt

  4. Time Synchronization • From the evaluation team last report: Time Synchronization, Partial Compliance • Total Compliance with proposed solution • The flow records contain both the flow start and the flow end sysUpTime. • The exporter could periodically send an Option Template containing a time synchronization pair composed of a sysUpTime and a unix_msecs (Number of milli seconds since 0000 UTC 1970), taken at the same point in time. • The collecting process could deduce the flow start and flow end UTC time of every single flow record. draft-claise-ipfix-eval-netflow-04.txt

  5. Congestion Awareness • “It was suggested that advocates must elaborate on how their protocol will be extended” • Upcoming Compliance with SCTP-PR • For more details on proposed implementations, refer to the draft:draft-djernaes-netflow-9-transport-00 draft-claise-ipfix-eval-netflow-04.txt

  6. Reliability Extensions • “The data transfer between exporting process and collecting process MUST be open to reliability extensions • Upcoming Compliance with SCTP-PR • refer to the draft:draft-djernaes-netflow-9-transport-00 draft-claise-ipfix-eval-netflow-04.txt

  7. Set of Properties for Distinguishing Flows • “it MUST be ensured that a collecting process is able to clearly identify for each received flow record which set of properties was used for distinguishing this flow from other ones” • From the Template ID and the Observation Domain we can find back the set of properties used to distinguish the flows. • Total Compliance draft-claise-ipfix-eval-netflow-04.txt

  8. Thank you for your attention ! Questions ?

  9. Summary • Reliability (metering) E • Sampling E -> T • Overload Behavior T • Timestamps T • Time Synchronization P -> T • Information Model T • Data Model T • Congestion Awareness F -> U • Reliability Extension P -> U • Security E • Push Mode Reporting T • Pull Mode Reporting F • Notifications on Events T • Anonymization E • Openness T • Scalability T • Several Collecting Proc. T draft-claise-ipfix-eval-netflow-04.txt

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