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<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="urn:ietf:params:xml:ns:ipfix-info"
xmlns:ipfix="urn:ietf:params:xml:ns:ipfix-info"
xmlns="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">
<simpleType name="dataType">
<restriction base="string">
<enumeration value="unsigned8">
<annotation>
<documentation>The type "unsigned8" represents a
non-negative integer value in the range of 0 to 255.
</documentation>
</annotation>
</enumeration>
<enumeration value="unsigned16">
<annotation>
<documentation>The type "unsigned16" represents a
non-negative integer value in the range of 0 to 65535.
</documentation>
</annotation>
</enumeration>
<enumeration value="unsigned32">
<annotation>
<documentation>The type "unsigned32" represents a
non-negative integer value in the range of 0 to
4294967295.
</documentation>
</annotation>
</enumeration>
<enumeration value="unsigned64">
<annotation>
<documentation>The type "unsigned64" represents a
non-negative integer value in the range of 0 to
18446744073709551615.
</documentation>
</annotation>
</enumeration>
<enumeration value="signed8">
<annotation>
<documentation>The type "signed8" represents
an integer value in the range of -128 to 127.
</documentation>
</annotation>
</enumeration>
<enumeration value="signed16">
<annotation>
<documentation>The type "signed16" represents an
integer value in the range of -32768 to 32767.
</documentation>
</annotation>
</enumeration>
<enumeration value="signed32">
<annotation>
<documentation>The type "signed32" represents an
integer value in the range of -2147483648 to
2147483647.
</documentation>
</annotation>
</enumeration>
<enumeration value="signed64">
<annotation>
<documentation>The type "signed64" represents an
integer value in the range of -9223372036854775808
to 9223372036854775807.
</documentation>
</annotation>
</enumeration>
<enumeration value="float32">
<annotation>
<documentation>The type "float32" corresponds to an IEEE
single-precision 32-bit floating point type as defined
in [IEEE.754.1985].
</documentation>
</annotation>
</enumeration>
<enumeration value="float64">
<annotation>
<documentation>The type "float64" corresponds to an IEEE
double-precision 64-bit floating point type as defined
in [IEEE.754.1985].
</documentation>
</annotation>
</enumeration>
<enumeration value="boolean">
<annotation>
<documentation>The type "boolean" represents a binary
value. The only allowed values are "true" and "false".
</documentation>
</annotation>
</enumeration>
<enumeration value="macAddress">
<annotation>
<documentation>The type "macAddress" represents a
string of 6 octets.
</documentation>
</annotation>
</enumeration>
<enumeration value="octetArray">
<annotation>
<documentation>The type "octetArray" represents a finite
length string of octets.
</documentation>
</annotation>
</enumeration>
<enumeration value="string">
<annotation>
<documentation>
The type "string" represents a finite length string
of valid characters from the Unicode character encoding
set [ISO.10646-1.1993]. Unicode allows for ASCII
[ISO.646.1991] and many other international character
sets to be used.
</documentation>
</annotation>
</enumeration>
<enumeration value="dateTimeSeconds">
<annotation>
<documentation>
The type "dateTimeSeconds" represents a time value
in units of seconds normalized to the
GMT time zone.
</documentation>
</annotation>
</enumeration>
<enumeration value="dateTimeMilliseconds">
<annotation>
<documentation>The type "dateTimeMilliseconds" represents
a time value in units of milliseconds
normalized to the GMT time zone.
</documentation>
</annotation>
</enumeration>
<enumeration value="dateTimeMicroseconds">
<annotation>
<documentation>The type "dateTimeMicroseconds" represents
a time value in units of microseconds
normalized to the GMT time zone.
</documentation>
</annotation>
</enumeration>
<enumeration value="dateTimeNanoseconds">
<annotation>
<documentation>The type "dateTimeNanoseconds" represents
a time value in units of nanoseconds
normalized to the GMT time zone.
</documentation>
</annotation>
</enumeration>
<enumeration value="ipv4Address">
<annotation>
<documentation>The type "ipv4Address" represents a value
of an IPv4 address.
</documentation>
</annotation>
</enumeration>
<enumeration value="ipv6Address">
<annotation>
<documentation>The type "ipv6Address" represents a value
of an IPv6 address.
</documentation>
</annotation>
</enumeration>
</restriction>
</simpleType>
<simpleType name="dataTypeSemantics">
<restriction base="string">
<enumeration value="quantity">
<annotation>
<documentation>
A quantity value represents a discrete
measured value pertaining to the record. This is
distinguished from counters which represent an ongoing
measured value whose "odometer" reading is captured as
part of a given record. If no semantic qualifier is
given, the Information Elements that have an integral
data type should behave as a quantity.
</documentation>
</annotation>
</enumeration>
<enumeration value="totalCounter">
<annotation>
<documentation>
An integral value reporting the value of a counter.
Counters are unsigned and wrap back to zero after
reaching the limit of the type. For example, an
unsigned64 with counter semantics will continue to
increment until reaching the value of 2**64 - 1. At
this point the next increment will wrap its value to
zero and continue counting from zero. The semantics
of a total counter is similar to the semantics of
counters used in SNMP, such as Counter32 defined in
RFC 2578 [RFC2578]. The only difference between total
counters and counters used in SNMP is that the total
counters have an initial value of 0. A total counter
counts independently of the export of its value.
</documentation>
</annotation>
</enumeration>
<enumeration value="deltaCounter">
<annotation>
<documentation>
An integral value reporting the value of a counter.
Counters are unsigned and wrap back to zero after
reaching the limit of the type. For example, an
unsigned64 with counter semantics will continue to
increment until reaching the value of 2**64 - 1. At
this point the next increment will wrap its value to
zero and continue counting from zero. The semantics
of a delta counter is similar to the semantics of
counters used in SNMP, such as Counter32 defined in
RFC 2578 [RFC2578]. The only difference between delta
counters and counters used in SNMP is that the delta
counters have an initial value of 0. A delta counter
is reset to 0 each time its value is exported.
</documentation>
</annotation>
</enumeration>
<enumeration value="identifier">
<annotation>
<documentation>
An integral value which serves as an identifier.
Specifically mathematical operations on two
identifiers (aside from the equality operation) are
meaningless. For example, Autonomous System ID 1 *
Autonomous System ID 2 is meaningless.
</documentation>
</annotation>
</enumeration>
<enumeration value="flags">
<annotation>
<documentation>
An integral value which actually represents a set of
bit fields. Logical operations are appropriate on
such values, but not other mathematical operations.
Flags should always be of an unsigned type.
</documentation>
</annotation>
</enumeration>
</restriction>
</simpleType>
<simpleType name="applicability">
<restriction base="string">
<enumeration value="data">
<annotation>
<documentation>
Used for Information Elements that are applicable to
Flow Records only.
</documentation>
</annotation>
</enumeration>
<enumeration value="option">
<annotation>
<documentation>
Used for Information Elements that are applicable to
option records only.
</documentation>
</annotation>
</enumeration>
<enumeration value="all">
<annotation>
<documentation>
Used for Information Elements that are applicable to
Flow Records as well as to option records.
</documentation>
</annotation>
</enumeration>
</restriction>
</simpleType>
<simpleType name="status">
<restriction base="string">
<enumeration value="current">
<annotation>
<documentation>
Indicates that the Information Element definition
is that the definition is current and valid.
</documentation>
</annotation>
</enumeration>
<enumeration value="deprecated">
<annotation>
<documentation>
Indicates that the Information Element definition is
obsolete, but it permits new/continued implementation
in order to foster interoperability with older/existing
implementations.
</documentation>
</annotation>
</enumeration>
<enumeration value="obsolete">
<annotation>
<documentation>
Indicates that the Information Element definition is
obsolete and should not be implemented and/or can be
removed if previously implemented.
</documentation>
</annotation>
</enumeration>
</restriction>
</simpleType>
<complexType name="text">
<choice maxOccurs="unbounded" minOccurs="0">
<element name="paragraph">
<complexType mixed="true">
<sequence>
<element maxOccurs="unbounded" minOccurs="0"
name="xref">
<complexType>
<attribute name="target" type="string"
use="required"/>
</complexType>
</element>
</sequence>
</complexType>
</element>
<element name="artwork">
<simpleType>
<restriction base="string"/>
</simpleType>
</element>
</choice>
</complexType>
<simpleType name="range">
<restriction base="string"/>
</simpleType>
<element name="fieldDefinitions">
<complexType>
<sequence>
<element maxOccurs="unbounded" minOccurs="1" name="field">
<complexType>
<sequence>
<element maxOccurs="1" minOccurs="1" name="description"
type="ipfix:text">
<annotation>
<documentation>
The semantics of this Information Element.
Describes how this Information Element is
derived from the Flow or other information
available to the observer.
</documentation>
</annotation>
</element>
<element maxOccurs="1" minOccurs="0" name="reference"
type="ipfix:text">
<annotation>
<documentation>
Identifies additional specifications which more
precisely define this item or provide additional
context for its use.
</documentation>
</annotation>
</element>
<element maxOccurs="1" minOccurs="0" name="units"
type="string">
<annotation>
<documentation>
If the Information Element is a measure of some
kind, the units identify what the measure is.
</documentation>
</annotation>
</element>
<element maxOccurs="1" minOccurs="0" name="range"
type="ipfix:range">
<annotation>
<documentation>
Some Information Elements may only be able to
take on a restricted set of values which can be
expressed as a range (e.g. 0 through 511
inclusive). If this is the case, the valid
inclusive range should be specified.
</documentation>
</annotation>
</element>
</sequence>
<attribute name="name" type="string" use="required">
<annotation>
<documentation>
A unique and meaningful name for the Information
Element.
</documentation>
</annotation>
</attribute>
<attribute name="dataType" type="ipfix:dataType"
use="required">
<annotation>
<documentation>
One of the types listed in section 3.1 of this
document or in a future extension of the
information model. The type space for attributes
is constrained to facilitate implementation. The
existing type space does however encompass most
basic types used in modern programming languages,
as well as some derived types (such as ipv4Address)
which are common to this domain and useful
to distinguish.
</documentation>
</annotation>
</attribute>
<attribute name="dataTypeSemantics"
type="ipfix:dataTypeSemantics" use="optional">
<annotation>
<documentation>
The integral types may be qualified by additional
semantic details. Valid values for the data type
semantics are specified in section 3.2 of this
document or in a future extension of the
information model.
</documentation>
</annotation>
</attribute>
<attribute name="elementId" type="nonNegativeInteger"
use="required">
<annotation>
<documentation>
A numeric identifier of the Information Element.
If this identifier is used without an enterprise
identifier (see [I-D.ietf-ipfix-protocol] and
enterpriseId below), then it is globally unique
and the list of allowed values is administered by
IANA. It is used for compact identification of an
Information Element when encoding Templates in the
protocol.
</documentation>
</annotation>
</attribute>
<attribute name="enterpriseId" type="nonNegativeInteger"
use="optional">
<annotation>
<documentation>
Enterprises may wish to define Information Elements
without registering them with IANA, for example for
enterprise-internal purposes. For such Information
Elements the Information Element identifier
described above is not sufficient when the
Information Element is used outside the enterprise.
If specifications of enterprise-specific
Information Elements are made public and/or if
enterprise-specific identifiers are used by the
IPFIX protocol outside the enterprise, then the
enterprise-specific identifier MUST be made
globally unique by combining it with an enterprise
identifier. Valid values for the enterpriseId are
defined by IANA as SMI network management private
enterprise codes. They are defined at
http://www.iana.org/assignments/enterprise-numbers.
</documentation>
</annotation>
</attribute>
<attribute name="applicability"
type="ipfix:applicability" use="optional">
<annotation>
<documentation>This propoerty of an Information
Element indicates in which kind of records the
Information Element can be used.
Allowed values for this property are 'data',
'option', and 'all'.</documentation>
</annotation>
</attribute>
<attribute name="status" type="ipfix:status"
use="required">
<annotation>
<documentation>
The status of the specification of this
Information Element. Allowed values are 'current',
'deprecated', and 'obsolete'.
</documentation>
</annotation>
</attribute>
<attribute name="group" type="string"
use="required">
<annotation>
<documentation>to be done ...</documentation>
</annotation>
</attribute>
</complexType>
</element>
</sequence>
</complexType>
<unique name="infoElementIdUnique">
<selector xpath="field"/>
<field xpath="elementId"/>
</unique>
</element>
</schema>
|