Biflow implementation support in IPFIX

Document Type Replaced Internet-Draft (individual)
Last updated 2008-04-17 (latest revision 2005-10-27)
Replaced by RFC 5103
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes how bidirectional flows (biflows) can be implemented in the IP Flow Information Export (IPFIX) protocol. We propose a variety of methods for biflow export, including an extension to the IPFIX Information Model that allows the specification of biflow semantics and a set of counters needed for biflow processing.


Elisa Boschi (
Brian Trammell (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)