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The SOA/WS management community has a problem: Insufficient # and range of standardized resource models Correctly converted SNMP MIBs can help to solve that problem: Standardized, numerous, multi-domain, instrumented The IETF O&M community is the right group to lead that effort:
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The SOA/WS management community has a problem: • Insufficient # and range of standardized resource models • Correctly converted SNMP MIBs can help to solve that problem: • Standardized, numerous, multi-domain, instrumented • The IETF O&M community is the right group to lead that effort: • Expertise, continuity, authority, control Development of a Standard Methodology for Converting SNMP MIBs to Resource Models for the SOA/Web Services Management Environment (MIB2RMDL) Bob Natale (rnatale@mitre.org) - IETF 68 – Prague - March 21, 2007
Agenda • Problem/Opportunity Description • Potential Beneficiaries & Benefits • Background • Proposal • Comments Received • Next Steps • Q&A Natale - IETF 68 - Prague - Ops Area Mini-BOF
Problem/Opportunity Description - 1 • The SOA/WS management community lacks a critical mass of standardized data models in appropriate formats to deliver acceptable solutions to the (waiting) user community. • The existing body of IETF SNMP MIBs can fill a major portion of the gap very quickly if converted to appropriate SOA/WS “resource model” artifacts. • The IETF should take the lead in standardizing the methodology for converting SNMP MIBs to SOA/WS resource model artifacts. • The IETF might also consider making reference implementation tools freely available (in a manner similar to xml2rfc). Natale - IETF 68 - Prague - Ops Area Mini-BOF
Mgmt Protocol Messages SOA/WS Mgmt Protocol SNMP 2 ManagedEntity MgmtEndpoint SNMPManager MgmtService SNMPAgent Manager InfoModel SMI ??? Simplified SNMP View Simplified SOA/WS View DataModel MIB ??? Decisionsaboutsupportedartifactsneeded here. ProposedIETF O&Mwork Standardized Conversion Methodology Illustration of the Problem Space SimplifiedGenericView Natale - IETF 68 - Prague - Ops Area Mini-BOF
Problem /Opportunity Description - 2 • Emerging SOA/WS management solutions face some major near-term limitations: • Lack of standardized “resource models”, esp. for node and network management. • Little desire among vendors to incorporate SNMP into their products. • Strong desire among operators for a unified management solution, emanating from the service management perspective. • The existing (and future) body of SNMP MIBs is an unequalled set of proven data models for node, network, and application management. • Managed object instrumentation supported by those SNMP MIBs can be made more readily accessible to SOA/WS management solutions at relatively little cost and with substantial benefit to all stakeholders. Natale - IETF 68 - Prague - Ops Area Mini-BOF
1 ResModel MgmtService MgmtEndpoint Primary goal is to standardize theMIB2RMDL conversion methodologyto provide greater management coveragefrom the SOA/WS management service bymaking instrumentation via SNMP agentstransparently available via SOA/WSresource models. MIB2RMDL SNMPAgent SOA/WS- SNMPProxy MIB SNMPManager Solid lines indicate the native mgmt protocol paths Dashed lines indicate proxied mgmt protocol paths Quirky lines indicate once-only conversion paths Illustration of the Target Environment Blue indicates SOA/WS mgmt components Green indicates SNMP mgmt components Red indicates intermediary mgmt components SNMP Manager component not required Multiple instances of all components possible Natale - IETF 68 - Prague - Ops Area Mini-BOF
Potential Beneficiaries & Benefits • SOA/WS Management vendors • More appealing products to offer • No need to reinvent the wheel wrt SNMP MIB data models or instrumentation • SNMP-managed equipment vendors • Broader market for existing products w/o code changes • SNMP Management vendors • Supply WS/SNMP proxy solution • Eventually supply SOA/WS instrumentation in existing SNMP-managed NEP products • SOA/WS Management user community • More unified management solutions from the service layer • Fewer distinct management tools to have to purchase, operate, and correlate Natale - IETF 68 - Prague - Ops Area Mini-BOF
Background – 1Some starting points • Work on SNMP MIB to XML conversion is a solid start on a necessary part of the solution. • XML alone is not sufficient because the SOA/WS management approach requires: • More extensive (structured) description of manageable resources • Modular packaging of descriptive elements • Apache Muse open source project (WSDM) can help guide this work and test outputs • Eclipse COSMOS (resource modeling) open source project can help guide this work and test outputs Discussed next Natale - IETF 68 - Prague - Ops Area Mini-BOF
Apache Muse(WSDM) focus 2 Eclipse COSMOS(resource modeling) focus Background – 2Candidate resource model artifacts • XML (eXtensible Markup Language) • RDF (Resource Description Framework) • WSDL (Web Services Description Language) • WS-Addressing (Web Services Addressing spec) • WS-Policy (Web Services Policy specs) • WS-CIM (Common Information Model) • SML (Service Modeling Language) • CML (Common Model Library) • OWL-S (Ontology Web Language - Services) Natale - IETF 68 - Prague - Ops Area Mini-BOF
This is a proposal for the IETF O&M Area to take on a defined task, with concrete near-term deliverables that have utility and value for the broader O&M community. It is somewhat atypical of our historical efforts, but not without direct precedent, and positions the Area to be a leader in forward-looking network management solutions. Proposal • The IETF O&M Area should take the lead on development of a standard methodology for converting SNMP MIBs to SOA/WS management resource model artifacts. • This effort should leverage the Apache Muse and the Eclipse COSMOS projects for resource model artifact selection and testing/verification of conversion outputs. Natale - IETF 68 - Prague - Ops Area Mini-BOF
Comments Received • Mark Ellison: • General editorial help • CA: • Positive; consider WS-CIM • IBM: • Positive; emphasize XSD basis; leverage Apache Muse and Eclipse COSMOS; produce directly usable artifacts • Juergen Schoenwaelder: • Clearly define what is needed by the SOA/WS mgmt community; clearly define benefits for stakeholders; questions reference to SNMPv3 security in the Draft • Andy Bierman: • Clarify API status; leverage and/or support NETCONF; concerns about “proxy use case; points to CLI use case (in contrast) • Dan Romascanu: • IETF relevance; SOA/WS terminology; concerns about tools as IETF outputs Natale - IETF 68 - Prague - Ops Area Mini-BOF
Next Steps • Wait for SOA/WS marketplace to finalize resource modeling decisions? • Might complicate life for eventual MIB2RMDL conversion methodology • Might ignore IETF (O&M and broader) requirements and conventions • Take the lead (recommended): • Form IETF O&M Area WG to standardize the MIB2RMDL methodology • Specifications • Reference implementation tools (optional) • Collaborate with NMRG on fast-track applied R&D • Leverage and guide related industry open source efforts (Eclipse COSMOS and Apache Muse) Natale - IETF 68 - Prague - Ops Area Mini-BOF
Thanks for your time, attention, and feedback! Questions, Comments? Natale - IETF 68 - Prague - Ops Area Mini-BOF