IPFIX Information Model Paul Callato, Jeff Meyer, Juergen Quittek 59th IETF meeting, IPFIX session

IETF 59 IPFIX INFO MODEL2 Changes Since Version -02 several editorial changes changed the XML representation of the information model  replaced representation of IPFIX protocol fields  added representation of field template  added representation of abstract data types modified list of (abstract) data types modified list of fields

IETF 59 IPFIX INFO MODEL3 XML Representation info model schema.xsd info model.xml info model I-D.xml info model I-D.txt translate with XSLT scripts and include include in appendices translate with XSLT scripts validate section 2 section 3 section 4

IETF 59 IPFIX INFO MODEL4 Issue 1: Datatypes Concrete XML data types were replaced by abstract IPFIX data types What is the useful set in order to be prepared for future extensions? version -02:  byte, unsignedByte  short, unsignedShort  int, unsignedInt  long, unsignedLong  float, double  hexBinary  string  boolean  dateTime, ipdr:dateTimeMsecm  ipdr:dateTimeUsec, ipfix:dateTimeNsec  ipdr:ipV4Addr, ipdr:ipV6Addr  ipdr:UUID version -03:  octet  unsigned16  unsigned32  unsigned64  float32  octetArray  string  boolean  dateTimeSeconds  dataTimeMicroSeconds  ipv4Address,ipv6Address

IETF 59 IPFIX INFO MODEL5 Issue 2: Field IDs Current version is compatible to NFv9 field IDs Allocating field IDs will be delegated to IANA There are some field Ids that we do not want to re-use.  These will be labeled "reserved for NFv9" The list of currently unused NFv9 fields needs to be checked for candidates to include in IPFIX

IETF 59 IPFIX INFO MODEL6 NFv9 Field Issues NFv9 has separate counters for incoming octets/packets and outgoing octets/packets  not nicely applicable to probes  unclear observation point  Shall we just use one of them for IPFIX?  Shall we define new fiels without "in" or "out" as prefix? NFv9 has separated values for IPv4 and IPv6 network mask length  shall we adopt this? NFv9 has smaplingInterval and samplingAlgorithm  PSAMP showed that this is not sufficient

IETF 59 IPFIX INFO MODEL7 List of not yet used NFv9 fields engineType (38), engineID (39) ipv4SrcPrefix (44), ipv4DestPrefix (45) MPLSTopLabel (46), MPLSTopLabelIPaddress (47) destClassOfService (55) srcMACAddr (56), destMACAddress (57) srcVLAN (58), dstVLAN (59) direction (61) : {ingressFlow|egreeFlow} IPv6OptionHeaders (74) MPLSlable1-10 (70-78) mplsTopLabelIPv6Addr