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XML MIB Modules draft-stephan-ops-xml-mib-module-template-00

68th IETF Meeting – March 2007 OPS area mini-bof. XML MIB Modules draft-stephan-ops-xml-mib-module-template-00. Emile Stephan. Agenda. Problem statements Experimentation with PCE WG MIB Benefits of standard XSL transformation Proposal. Problem statements 1/3. MIB module editing in XML

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XML MIB Modules draft-stephan-ops-xml-mib-module-template-00

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  1. 68th IETF Meeting – March 2007 OPS area mini-bof XML MIB Modulesdraft-stephan-ops-xml-mib-module-template-00 Emile Stephan

  2. Agenda • Problem statements • Experimentation with PCE WG MIB • Benefits of standard XSL transformation • Proposal

  3. Problem statements 1/3 • MIB module editing in XML • Currently: MIB editing under xml2rfc in <artwork> (to be renamed <hardwork> ) • Not respectful of RFC2629: <artwork> content should be limited to one page; • A non sense to edit manually in <artwork>; • Need: Editing directly in XML using standard XML template • Save time for MIB editor & MIB doctor • … and provide a trajectory for sharing SMI definition with other datamodels • Datamodels sharing • Currently: IETF management framework doesn't propose anything for sharing MIB items definitions with other IETF network management data model such as Netconf. • More and more appendixes carries XML datamodel without any guidance from IETF. • Normative status of these appendixes become more and more unclear. • Need: share XML MIB object definitions • Developpement: • Waste of Time: doubling data model interface & instance, tests • Difficult to spec consolidation function relying on objects instances from different datamodel • Operation • Double poling, tricky consolidation…

  4. Problem statements 2/3Managing evolution • Internet network management protocols • Historically: • Specified=MIB/SNMP & unspecified=CLI, ftp..() • Currently: many Std protocols and few nm datamodels • SNMP, COPS, Netconf, IPFIX… • SNMP is massively deployed for a while. • SMI is still the centrality for fully specified network management interfaces; • W3C XML suite is replacing proprietary mgmg interfaces & protocol; • XML based NM protocols don't have any nm interface data models • untying NM interface spec & protocol • currently: • ASN.1: with SMI/ASN.1 and SNMP/ASN.1 BER • XML: Netconf protocol in XML, datamodel in XML • Need: • ASN.1 BER & XML are not the centrality for protocol encoding • XML by essence is not bandwidth optimized • Need of a standard XSL specification for transforming SMI NM interfaces in data models and protocols considered;

  5. Problem statements 3/3Missing point • Share MIB specifications with other data models • Solution: Through a XSL transformation spec XML MIB module XSL SMI Data models XML Schema ASN.1 X208 protocols SNMP NETCONF presentation XML ASN.1 BER X209 SSH SOAP transport …

  6. Experimentation with PCE-DISC-MIB 1/4 • Manageability sections in PCE WG docs • WG documents specify monitoring reqs. • Editing: draft-ietf-pce-disc-mib-02.xml • Edited using xml2rfc-xxe; • Text section from David draft; • MIB objects definition written in XML • XSD4MIB.xsl • From the xml MIB to the schema of MIB • PCE-DISC-STD-MIB.xsd & PCE-DISC-STD-MIBsmi.xsd

  7. Experimentation with PCE-DISC-MIB Editing 2/4 Regular text editor XXE gui

  8. Experimentation with PCE DISC MIB 3/4 • XSL transformation spec for Sharing MIB types, objects & verbs with other data models draft-ietf-pce-disc-mib-02.xml XSD4MIB.xsl transformation Imports & TC Tables & Notifications Scalars, fields & Entry PCE-DISC-STD-MIB.xsd PCE-DISC-STD-MIBsmi.xsd PCE-DISC-STD-MIBverbs.xsd

  9. PCE WG experimentation 4/4sum up • xsd4Mib.xsl • In:draft-ietf-pce-disc-mib-02.xml • Out: • PCE-DISC-STD-MIB.xsd • PCE-DISC-STD-MIBsmi.xsd • Retro Compatibility • Xml2rfc, smilint • draft-ietf-pce-disc-mib-02.txt

  10. Benefits 1/4 • Standardization process • Operation • Coupling with high level business apps

  11. Benefits 2/4 Standardization process • xsd4Mib.xsl document: • a spec of the tool in a std language and the tool • Capitalize on manageability sections • Not dedicated to MIB & SNMP • Cross referencing between NM languages • Editors • Faster Editing … and more popular • MIB Review • Embedded SMI checking • RW items in sec section, import, lint, compliance … • automatic framework section update : // xml2rfc • Avoid non standard XSD appendix in I-D

  12. Benefits 3/4 Operation • Operation consistency • Std cross referencing among datamodels • Ex: provisioning in unspec XML and monitoring in SNMP • a Mib object instance & ??sth?? from XML world • Space saving • Avoid duplication of the same data • Business • Seamless connection with high level apps • …

  13. Proposal 1/5minimize efforts duplication & multiplication • Edit IETF MIB draft in XML • Standardize XSL translator of XML MIB • Prepare derivation of this XSL • Usage

  14. Proposal 2/5 IETF MIB draft Editing in XML • RFC2629 • Add 'smi' Attribute to 'list' element and reserved SMI keywords • Reserved the value 'mibmodule' for 'anchor' attribute of section 'Element' • Specify a XML template for each SMI macro • Insert them in a model of xml mib module draft to be published and/or in xml2rfc-xxe edition panel Import Identity Scalar Field Table Record notification

  15. Proposal 3/5 Standard XSL translator for XML MIB • Standardize • xsd4Mib.xsl for producing • Schema of the import of a XML MIB module • Schema of the objects of a XML MIB module • Schema of the verbs of a XML MIB module • A single XML schema of well known TCs • MIB items namespaces and import

  16. Proposal 4/5 Same XSL base among #datamodels • Share the XSL as the base for translation towards non or specific XML datamodel ietf-doc-mib-module.xml Base XSL input specific XSL output transformation … Datamodel1 Specific XML apps

  17. Proposal 5/5 Limits initial usage • Netconf & SOAP operation with MIB verbs

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