Highly Available Internet Telephony Fact or Fiction? Manfred Reitenspiess Fujitsu Siemens Computers Munich, Germany Bill Swortwood Motorola Tempe, Arizona Service Availability™ Forum

Agenda  Service Availability and VoIP  Function Set for Service Availability  Standardization of Service Availability Interfaces  Value to VoIP Solutions  Management Interfaces for Service Availability

Problem of Internet Availability PeriodAvailabilityStandard met? January87.22%FAIL 3-9 January88.32%FAIL 27 December-2 January 88.18%FAIL December87.40%FAIL :13:28 - independently monitored by Server Monitoring UK.

VoIP Availability Below Expectations Network/path%timelossisbelow type0%5%10%20% All82.3%97.48%99.16%99.75% Commercial78.6%96.72%99.04%99.74% Internet297.7%99.67%99.77%99.79% Internet2+86.8%98.41%99.32%99.76% Domestic (US)83.6%96.95%99.27%99.79% International81.7%97.74%99.11%99.73% Domestic commercial73.6%95.03%98.92%99.79% Int’l commercial81.2%97.60%99.10%99.71% Assessment of VoIP Service Availability in the Current Internet Wenyu Jiang, Henning Schulzrinne, Columbia University, 2003

“Service Availability and VoIP Are Siblings” Source: Gartner Research (September 2004)

Fundamental Concepts: Clustering and (HW/SW) Redundancy

Standard Interface Specifications Source: Systems Management Interface (SMS) Application Interface Specification (AIS) Hardware Platform Interface (HPI)

Standardization of Service Availability Interfaces: AIS  Availability Management  Cluster Membership  Checkpoint Service  Event Service  Messaging Service  Locking Service

Standardization of Service Availability Interfaces: HPI  Setup  Resource provisioning  Monitoring  Health and performance monitoring  Fault prevention and maintenance  Fault Management  Fault detection/alerts/response/diagnostics  Replacement and repair  System restoration

Standardization of Service Availability Interfaces: SMS  SNMP and Web-based interfaces that provides distributed monitoring and control access to :  AIS Management Functionality  HPI Management Functionality  Interface specification that enables service event and error reporting by AIS and HPI

How can VoIP Solutions profit from the standard set of HA interfaces?  Integrated ecosystem of component providers and ready to use components  Solution vendors focus on system definition, integration and value-added applications  Faster time to market and revenue; reduced lifecycle costs for components and solutions  Expanded market for standards-based products  Reduced need for product customization

Agenda Management Interfaces for Service Availability  Glossary  Goals  Specification Content  SNMP, Web-based and Notification Management  Getting SA Forum Technologies

Glossary  SA Forum – Service Availability Forum  AIS – Application Interface Specification  AMF – Application Management Framework  HPI – Hardware Platform Interface  DMTF – Distributed Management Task Force  CIM – Common Information Model  WBEM – Web-based Management  IETF – Internet Engineering Task Force  SNMP – Simple Network Management Protocol  MIB – Management Information Base (SNMP)  PICMG – PCI Industrial Computer Manufacturers Group  ATCA – Advanced Telecom Computing Architecture  OSDL – Open Source Development Lab

Goals  Expose manageability in standards-based and distributed manner for SA Forum’s Cluster Management and Platform Management APIs  Wherever possible, use existing and proven work from other manageability focused standards bodies  Do not reinvent the wheel  Create convergence with other management standards  Common goals with fellow travelers

SA Forum SMS Spec Content  Distributed Management for AIS  SNMP MIBS for AIS and AMF  CIM Modeling for AIS and AMF  Notification specification  Configuration  Distributed Management for HPI  SNMP MIB for HPI  HPI/ATCA mappings  CIM to HPI objects and mapping

Industry Points of Intersection  Internet Engineering Task Force (IETF)  Distributed Management Expression MIB (RFC 2982)  Event MIB (RFC 2981)  Notification Log MIB (RFC 3014)  Definitions of Managed Objects for the Delegation of Management Scripts (RFC 3165)  Definitions of Managed Objects for Scheduling Management Operations (RFC 3231)  Alarm MIB (RFC 3877)  Alarm Reporting Control MIB (RFC 3878)  Distributed Management Task Force (DMTF)  Common Information Model Schema, XML and Object Model (v 2.9)  Server Management Command Line Protocol Specification (DSP0214)  Common Manageability Programming Interface (CMPI)

SA Forum SNMP Management  MIBs for  AIS and AMF  HPI  Closely follows IETF standards  Implementations and running prototype agent code currently extant AIS SNMP Subagents on Linux using SNMP++ based Agent toolkit

SA Forum Web-based Management  Using DMTF’s Common Information Model  Provides mapping to SNMP for interoperability  Provides common data model for SA Forum’s platform management and cluster management  Communication Model  Transport Encoding  Event Model  Object Manager  Data Repository and Programming Interfaces  Pervasive Industry Support Management Applications cim-xml Transport CIM Object Manager Resource Providers CMIP Objects CMI P SNMP MIBs SNMP DMI MIFs RPC CIM Objects Inter net Schema CIM Server CIM Client hpi HPI B Entity /ATCA ais CLM NTFEventLck CKPT MSG AMF

SA Forum Notification Framework  Consolidation of all cluster provided and platform derived event information.  Allows for collection, logging, filtering and forwarding of events, alerts, alarms, traps and application notices  Incorporates ITU-T X.733 specification  Integration IETF and DMTF defined event services  Viewing and filtering of current and historic logged events Consumer app: subscriber Forward error report Consumer app: reader Notification log (persistent storage) System Management Retrieve report Generate Notification Producer app Notification handler Log Notication Local data access on cluster Data flow direction Local or remote data access

Getting SA Forum Technologies Today  Specifications and Source Code   Commercial Products  SA Forum Product Registry Open Source Implementations AIS HPI Management Applications cim-xml Transport CIM Object Manager Resource Providers CMIP Objects C MI P SNMP MIBs SNMP DMI MIFs RP C CIM Objects Inte rne t Sche ma CIM Serve r CIM Client

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