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IP Flow Information Export

Document Charter IP Flow Information Export WG (ipfix) Snapshot
Title IP Flow Information Export
Last updated 2001-09-27
State Approved
WG State Concluded
IESG Responsible AD Benoît Claise
Charter edit AD (None)
Send notices to (None)

The IPFIX working group has specified the information model (to describe
  IP flows) and the IPFIX protocol (to transfer IP flow data from IPFIX
  exporters to collectors). Several implementers have already built
  applications using the IPFIX protocol. As a result of a series of IPFIX
  interoperability testing events the WG has produced guidelines for IPFIX
  implementation and testing as well as recommendations for handling
  special cases such as bidirectional flow reporting and reducing
  redundancy in flow records.
  The IPFIX WG has developed a mediation framework, that defines IPFIX
  mediators for processing flow records for various purposes including
  aggregation, anonymization, etc. For configuring IPFIX devices, a YANG
  module has been developed.
  1. Having a solid standardized base for IPFIX deployment and operation
  and several existing implementations, the IPFIX WG will revisit the
  IPFIX protocol specifications (RFC 5101) and the IPFIX information
  element specification (RFC 5102) in order to in order to advance them to
  the next stage on the standards track.
  All following items 2.-7. will be in line with the revised versions of
  the IPFIX protocol specifications and the IPFIX information model.
  2. In order to provide guidelines to developers and reviewers (including
  IE doctors) of new IPFIX information elements and for better defining
  the process of registering new information elements at IANA the IPFIX WG
  will create an information element developers and reviewers guideline
  3. The export of IPFIX flow records from IPFIX mediators introduces a
  set of potential issues at the protocol level, such as the loss of
  information on the original exporter, loss of base time information,
  loss of original options template information, etc. The IPFIX WG will
  define a set of specifications for applying the IPFIX protocol at
  mediators, including new specifications for protocol issues not
  envisioned by the IPFIX protocol itself.
  4.In order to support the aggregation of flow records at IPFIX mediators
  the IPFIX WG will define how to export aggregated flow information using
  IPFIX. An aggregated flow is essentially an IPFIX flow representing
  packets from multiple original Flows sharing some set of common
  5. The IPFIX WG will investigate the use of the IPFIX protocol for
  exporting MIB objects, avoiding the need to define new IPFIX information
  elements for existing management information base objects that are
  already fully specified. This method requires the specification of new
  template set and options template sets to allow the export of MIB
  objects along with IPFIX information elements.
  6. The IPFIX MIB module (RFC 5815) defined a way to register packet
  selector functions at IANA. The WG agreed that another method would be
  preferable that requires a minor change of RFC 5815. The IPFIX WG will
  produce a new version of RFC 5815 with small modifications of the IANA
  actions and DESCRIPTION clauses in the MIB modules.
  7. Operational experiences showed that it would be useful to define
  several new information elements for data link monitoring covering frame
  size, type, sections of frames, and VLAN information. The IPFIX WG will
  create a document defining these new information elements.