Network Working Group J. Schoenwaelder
Internet-Draft F. Strauss
Expires: July 10, 2002 TU Braunschweig
January 9, 2002
Using XML to Exchange SMI Definitions
draft-irtf-nmrg-smi-xml-01
Status of this Memo
This document is an Internet-Draft and is in full conformance with
all provisions of Section 10 of RFC2026.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet-
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Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
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material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at
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This Internet-Draft will expire on July 10, 2002.
Copyright Notice
Copyright (C) The Internet Society (2002). All Rights Reserved.
Abstract
This memo describes how the Extensible Markup Language (XML) can be
used to exchange SMIv1 and SMIv2 definitions between XML enabled
applications.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. SMI XML Schema . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4. Open Issues . . . . . . . . . . . . . . . . . . . . . . . . . 16
5. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 16
References . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 17
Full Copyright Statement . . . . . . . . . . . . . . . . . . . 18
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1. Introduction
This memo describes how the Extensible Markup Language (XML) [1] can
be used to exchange SMIv1 [2][3][4] and SMIv2 [5][6][7] definitions
between XML enabled applications. The acronym SMI is used throughout
this document as a version neutral name for SMIv1 or SMIv2.
The XML Schema defined in this memo allows applications with embedded
generic XML parsers to read (or edit) the original SMI definitions.
The XML Schema is optimized for this purpose. Terseness of the XML
output was of minimal importance since humans are expected to read
the originial SMI definitions.
In fact, the XML format of an SMI module is significantly longer
compared to the original SMI definition. This is in line with the
design goals for XML, which favours computer readability over
terseness.
There are several scenarios where an XML representation of SMI
definitions is useful:
o The XML format may be used as an intermediate format between a
validating SMI compiler/parser and post processing tools such as
code or schema generators. (The undocumented mosy format has been
used in the past for this purpose. The mosy format does not
preserve all information present in a SMI module and is therefore
problematic.)
o The XML format can be used with XSLT post processors to generate
documentation in various formats.
o The XML format makes it possible to access SMI definitions from a
variety of programming languages. E.g., XML parsers are available
in Java, C, C++, Tcl, Perl, Python, and GNU Emacs Lisp in both
commercial and open source forms.
o There are generic tools for maintaining large sets of XML
definitions. This includes tools to search for definitions with a
specific property. Such generic XML tools can be very useful in
organizations that must maintain large amounts of SMI definitions.
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2. SMI XML Schema
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE schema SYSTEM "http://www.w3.org/2001/XMLSchema.dtd">
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<!--
- The top-level element.
-
-->
<xsd:element name="smi">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="module"/>
<xsd:element ref="imports" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="typedefs" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="nodes" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="notifications" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="groups" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="compliances" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<!--
- Terminal Elements.
-
-->
<xsd:element name="description">
<xsd:simpleType>
<xsd:restriction base="xsd:string"/>
</xsd:simpleType>
</xsd:element>
<xsd:element name="reference">
<xsd:simpleType>
<xsd:restriction base="xsd:string"/>
</xsd:simpleType>
</xsd:element>
<xsd:element name="format">
<xsd:simpleType>
<xsd:restriction base="xsd:string"/>
</xsd:simpleType>
</xsd:element>
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<xsd:element name="units">
<xsd:simpleType>
<xsd:restriction base="xsd:string"/>
</xsd:simpleType>
</xsd:element>
<xsd:element name="default">
<xsd:simpleType>
<xsd:restriction base="xsd:string"/>
</xsd:simpleType>
</xsd:element>
<xsd:element name="access">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="noaccess"/>
<xsd:enumeration value="notifyonly"/>
<xsd:enumeration value="readonly"/>
<xsd:enumeration value="readwrite"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
<xsd:element name="range">
<xsd:complexType>
<xsd:attribute name="min" type="xsd:integer" use="required"/>
<xsd:attribute name="max" type="xsd:integer" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="namednumber">
<xsd:complexType>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="number" type="xsd:integer" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="parent">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="type">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
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</xsd:complexType>
</xsd:element>
<xsd:element name="syntax">
<xsd:complexType>
<xsd:choice>
<xsd:element ref="type"/>
<xsd:element ref="typedef"/>
</xsd:choice>
</xsd:complexType>
</xsd:element>
<xsd:element name="writesyntax">
<xsd:complexType>
<xsd:choice>
<xsd:element ref="type"/>
<xsd:element ref="typedef"/>
</xsd:choice>
</xsd:complexType>
</xsd:element>
<xsd:element name="linkage">
<xsd:complexType>
<xsd:choice>
<xsd:element ref="index" minOccurs="1" maxOccurs="unbounded"/>
<xsd:element ref="augments"/>
<xsd:element ref="reorders"/>
<xsd:element ref="sparse"/>
<xsd:element ref="expands"/>
</xsd:choice>
<xsd:attribute name="implied" default="false">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="true"/>
<xsd:enumeration value="false"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="index">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
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<xsd:element name="augments">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="reorders">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="sparse">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="expands">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="module">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="organization" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="contact" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="description" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="revision" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="identity" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="language" use="required">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="SMIv1"/>
<xsd:enumeration value="SMIv2"/>
<xsd:enumeration value="SMIng"/>
</xsd:restriction>
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</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="organization">
<xsd:simpleType>
<xsd:restriction base="xsd:string"/>
</xsd:simpleType>
</xsd:element>
<xsd:element name="contact">
<xsd:simpleType>
<xsd:restriction base="xsd:string"/>
</xsd:simpleType>
</xsd:element>
<xsd:element name="revision">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="description"/>
</xsd:sequence>
<xsd:attribute name="date" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="identity">
<xsd:complexType>
<xsd:attribute name="node" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="imports">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="import" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="import">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="typedefs">
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<xsd:complexType>
<xsd:sequence>
<xsd:element ref="typedef" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="typedef">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="parent" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="range" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="namednumber" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element ref="default" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="format" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="units" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="description" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" default=""/>
<xsd:attribute name="basetype" type="xsd:string" use="required"/>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="nodes">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element ref="node"/>
<xsd:element ref="scalar"/>
<xsd:element ref="table"/>
</xsd:choice>
</xsd:complexType>
</xsd:element>
<xsd:element name="node">
<xsd:complexType>
<xsd:sequence>
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<xsd:element ref="description" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="scalar">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="syntax"/>
<xsd:element ref="access"/>
<xsd:element ref="default" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="format" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="units" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="description"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="table">
<xsd:complexType>
<xsd:sequence>
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<xsd:element ref="description"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="row"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="row">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="linkage"/>
<xsd:element ref="description"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="column" maxOccurs="unbounded"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
<xsd:attribute name="create" default="false">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="true"/>
<xsd:enumeration value="false"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
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</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="column">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="syntax"/>
<xsd:element ref="access"/>
<xsd:element ref="default" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="format" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="units" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="description"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="notifications">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="notification" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="notification">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="objects"/>
<xsd:element ref="description"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
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<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="objects">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="object" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="object">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="groups">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="group" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="group">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="members"/>
<xsd:element ref="description"/>
<xsd:element ref="reference" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
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<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="members">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="member" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="member">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="compliances">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="compliance" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="compliance">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="description"/>
<xsd:element ref="requires"/>
<xsd:element ref="refinements" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required"/>
<xsd:attribute name="oid" type="xsd:string" use="required"/>
<xsd:attribute name="status" default="current">
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="current"/>
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<xsd:enumeration value="deprecated"/>
<xsd:enumeration value="obsolete"/>
<xsd:enumeration value="mandatory"/>
<xsd:enumeration value="optional"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
<xsd:element name="requires">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element ref="mandatory"/>
<xsd:element ref="option"/>
</xsd:choice>
</xsd:complexType>
</xsd:element>
<xsd:element name="mandatory">
<xsd:complexType>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="option">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="description"/>
</xsd:sequence>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
<xsd:element name="refinements">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="refinement" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="refinement">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="syntax" minOccurs="0" maxOccurs="1"/>
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<xsd:element ref="access" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="description"/>
</xsd:sequence>
<xsd:attribute name="module" type="xsd:string" use="required"/>
<xsd:attribute name="name" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
</xsd:schema>
3. Examples
4. Open Issues
Shall we get rid of the identity element by making it an optional
attribute of the module element?
5. Acknowledgments
This document is the result of discussions within the Network
Management Research Group (NMRG) of the Internet Research Task
Force[8] (IRTF).
Special thanks to Bert Helthuis, Atin Banerjee and Debnarayan Kar for
providing useful feedback and access to their private SMI XML DTDs.
A prototype implementation of an SMIv1/v2 converter to XML is freely
available as part of the libsmi[9] SMI parser library distribution.
References
[1] World Wide Web Consortium, "Extensible Markup Language (XML) 1.0
(Second Edition)", W3C REC-xml-20001006, October 2000.
[2] Rose, M. and K. McCloghrie, "Structure and identification of
management information for TCP/IP-based internets", STD 16, RFC
1155, May 1990.
[3] Rose, M. and K. McCloghrie, "Concise MIB definitions", STD 16,
RFC 1212, March 1991.
[4] Rose, M., "Convention for defining traps for use with the SNMP",
RFC 1215, March 1991.
[5] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
McCloghrie, K., Rose, M. and S. Waldbusser, "Structure of
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Management Information Version 2 (SMIv2)", STD 58, RFC 2578,
April 1999.
[6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
McCloghrie, K., Rose, M. and S. Waldbusser, "Textual Conventions
for SMIv2", STD 58, RFC 2579, April 1999.
[7] McCloghrie, K., Perkins, D. and J. Schoenwaelder, "Conformance
Statements for SMIv2", STD 58, RFC 2580, April 1999.
[8] <http://www.irtf.org/>
[9] <http://www.ibr.cs.tu-bs.de/projects/libsmi/>
Authors' Addresses
Juergen Schoenwaelder
TU Braunschweig
Muehlenpfordtstrasse 23
38106 Braunschweig
Germany
Phone: +49 531 391-3289
EMail: schoenw@ibr.cs.tu-bs.de
Frank Strauss
TU Braunschweig
Muehlenpfordtstrasse 23
38106 Braunschweig
Germany
Phone: +49 531 391-3266
EMail: strauss@ibr.cs.tu-bs.de
Schoenwaelder & Strauss Expires July 10, 2002 [Page 17]
Internet-Draft XML SMI Exchange Format January 2002
Full Copyright Statement
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