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Annotation of 43BSDReno/contrib/isode-beta/doc/trek/trek.tex, revision 1.1

1.1     ! root        1: % run this through SLiTeX
        !             2: 
        !             3: \documentstyle[blackandwhite,landscape,oval,pagenumbers,small]{NRslides}
        !             4: 
        !             5: \raggedright
        !             6: 
        !             7: \input trademark
        !             8: 
        !             9: \begin{document}
        !            10: 
        !            11: \title {TREKKING TO ISO:\\ BEAM US OVER, SCOTTY}
        !            12: \author        {Marshall T.~Rose\\
        !            13:        Computer Science Laboratory\\
        !            14:        Northrop Research and Technology Center}
        !            15: \date  {October 7, 1987}
        !            16: \maketitlepage
        !            17: 
        !            18: 
        !            19: \begin{note}\em
        !            20: first a disclaimer:
        !            21: 
        !            22: \begin{quote}
        !            23: i didn't get to choose the title for this talk!
        !            24: \end{quote}
        !            25: \end{note}
        !            26: 
        !            27: 
        !            28: \begin{bwslide}
        !            29: \ctitle        {FUNDAMENTAL PREMISES}
        !            30: 
        !            31: \begin{nrtc}
        !            32: \item  OSI/ISO WILL DOMINATE COMPUTER COMMUNICATIONS
        !            33: 
        !            34: \item  EXISTING INVESTMENTS (IN NON-OSI TECHNOLOGY) SHOULD BE PROTECTED
        !            35:     \begin{nrtc}
        !            36:     \item      BUT REALISTICALLY, EQUIPMENT HAS A HALF-LIFE OF 5 YEARS
        !            37:     \end{nrtc}
        !            38: 
        !            39: \item  NEW INVESTMENTS SHOULD EITHER BE OSI OR HAVE A HIGH DEGREE OF
        !            40:        OSI-COMPATIBILITY
        !            41: \end{nrtc}
        !            42: \end{bwslide}
        !            43: 
        !            44: 
        !            45: \begin{bwslide}
        !            46: \ctitle        {WHAT IS OSI/ISO?}
        !            47: 
        !            48: \begin{nrtc}
        !            49: \item  A LAYERED ARCHITECTURE FOR COMPUTER COMMUNICATIONS
        !            50: 
        !            51: \item  STANDARDIZED IN THE INTERNATIONAL COMMUNITY
        !            52: 
        !            53: \item  NON-PROPRIETARY IN NATURE
        !            54: \end{nrtc}
        !            55: \end{bwslide}
        !            56: 
        !            57: 
        !            58: \begin{bwslide}
        !            59: \ctitle        {FROM A COMMUNICATIONS VIEWPOINT}
        !            60: 
        !            61: \vskip.5in
        !            62: \diagram[p]{figure0a}
        !            63: \end{bwslide}
        !            64: 
        !            65: 
        !            66: \begin{bwslide}
        !            67: \ctitle        {FROM A COMPUTER VIEWPOINT}
        !            68: 
        !            69: \vskip.5in
        !            70: \diagram[p]{figure0b}
        !            71: \end{bwslide}
        !            72: 
        !            73: 
        !            74: \begin{bwslide}
        !            75: \ctitle        {THE 7--LAYER STACK}
        !            76: 
        !            77: \vskip.5in
        !            78: \diagram[p]{figure0c}
        !            79: \end{bwslide}
        !            80: 
        !            81: 
        !            82: \begin{bwslide}
        !            83: \ctitle        {THE OSI APPLICATION LAYER}
        !            84: 
        !            85: \begin{nrtc}
        !            86: \item  MANY STANDARD SERVICE ELEMENTS
        !            87:     \begin{nrtc}
        !            88:     \item      ASSOCATION CONTROL
        !            89: 
        !            90:     \item      REMOTE OPERATIONS
        !            91: 
        !            92:     \item      RELIABLE TRANSFER
        !            93: 
        !            94:     \item      COMMITMENT, CONCURRENCY AND RECOVERY
        !            95: 
        !            96:     \item      ABSTRACT SYNTAX NOTATION ONE\\
        !            97:                (REALLY PRESENTATION LAYER)
        !            98:     \end{nrtc}
        !            99: \end{nrtc}
        !           100: \end{bwslide}
        !           101: 
        !           102: 
        !           103: \begin{bwslide}
        !           104: \ctitle        {FTAM USE OF UPPER-LAYER ELEMENTS}
        !           105: 
        !           106: \vskip.5in
        !           107: \diagram[p]{figure3}
        !           108: \end{bwslide}
        !           109: 
        !           110: 
        !           111: \begin{note}\em
        !           112: will use the terms ISO and OSI interchangeably from now on
        !           113: 
        !           114: ISO will provide the dominant communication protocol family in the 1990's
        !           115: \end{note}
        !           116: 
        !           117: 
        !           118: \begin{bwslide}
        !           119: \ctitle        {POSSIBLE SOLUTION \#1\\ EXAGERATED, OBVIOUSLY}
        !           120: 
        !           121: \begin{nrtc}
        !           122: \item  FIRE ALL NON-OSI PERSONNEL
        !           123: 
        !           124: \item  SELL ALL NON-OSI EQUIPMENT
        !           125: 
        !           126: \item  BANKROLL ONLY PURE-OSI INVESTMENTS
        !           127: \end{nrtc}
        !           128: \end{bwslide}
        !           129: 
        !           130: 
        !           131: \begin{bwslide}
        !           132: \ctitle        {NOT A VERY GOOD IDEA\\ (NOT RECOMMENDED)}
        !           133: 
        !           134: \begin{nrtc}
        !           135: \item  CAPABILITY OF {\bf CURRENT\/} OSI PRODUCTS
        !           136:        NOT AS GOOD AS OTHER EXISTING NETWORKING PRODUCTS
        !           137:     
        !           138: \item  WE CAN'T SHUTDOWN THE FACTORY/OFFICE
        !           139: 
        !           140: \item  A REVOLUTIONARY APPROACH WHEN WE NEED EVOLUTION
        !           141: \end{nrtc}
        !           142: \end{bwslide}
        !           143: 
        !           144: 
        !           145: \begin{note}\em
        !           146: in fact, at one map/top meeting, it was noted that
        !           147: 
        !           148: \begin{quote}
        !           149: ``NORTHROP has shipped more OSI software than any OSI vendor''
        !           150: \end{quote}
        !           151: 
        !           152: by one of the leading OSI vendors!
        !           153: \end{note}
        !           154: 
        !           155: 
        !           156: \begin{bwslide}
        !           157: \ctitle        {POSSIBLE SOLUTION \#2\\ NOT SO EXAGERATED}
        !           158: 
        !           159: \begin{nrtc}
        !           160: \item  START BUILDING A SEPARATE OSI ENVIRONMENT INDEPENDENT OF THE EXISTING
        !           161:        ENVIRONMENT
        !           162: 
        !           163: \item  SWITCH WHEN OSI TECHNOLOGY REACHES SUPERIOR CAPABILITY
        !           164: 
        !           165: \item  EMPLOY HIGH-LEVEL GATEWAYS TO SHUTTLE INFORMATION BETWEEN ENVIRONMENTS
        !           166:        (e.g., PROFS TO X.400)
        !           167: \end{nrtc}
        !           168: \end{bwslide}
        !           169: 
        !           170: 
        !           171: \begin{bwslide}
        !           172: \diagram[p]{figure1}
        !           173: \end{bwslide}
        !           174: 
        !           175: 
        !           176: \begin{bwslide}
        !           177: \ctitle        {A BETTER IDEA, BUT NOT PERFECT}
        !           178: 
        !           179: \begin{nrtc}
        !           180: \item  PERMITS US TO GAIN EXPERIENCE WITH THE NEW TECHNOLOGY
        !           181: 
        !           182: \item  HOPEFULLY DOESN'T INTERFERE WITH EXISTING OPERATIONS
        !           183: 
        !           184: \item  SOME DUPLICATION OF EFFORT
        !           185:     
        !           186: \item  HIGH-LEVEL GATEWAYS OFTEN DON'T WORK VERY WELL
        !           187:     \begin{nrtc}
        !           188:     \item      ``SOMETIMES WHEN YOU TRY TO TURN AN APPLE INTO AN ORANGE YOU
        !           189:                GET BACK A LEMON''
        !           190:     \end{nrtc}
        !           191: \end{nrtc}
        !           192: \end{bwslide}
        !           193: 
        !           194: 
        !           195: \begin{bwslide}
        !           196: \ctitle        {POSSIBLE SOLUTION \#3}
        !           197: 
        !           198: \begin{nrtc}
        !           199: \item  START BUILDING AN OSI ENVIRONMENT ON TOP OF EXISTING ENVIRONMENTS
        !           200: 
        !           201: \item  BUILD SELECTED NEW SYSTEMS WITH OSI
        !           202: 
        !           203: \item  MIGRATE EXISTING APPLICATIONS TO AN OSI FRAMEWORK AS THE TECHNOLOGY
        !           204:        BECOMES AVAILABLE
        !           205: 
        !           206: \item  CONTINUE RUNNING SELECTED SYSTEMS ``AS IS''
        !           207: \end{nrtc}
        !           208: \end{bwslide}
        !           209: 
        !           210: 
        !           211: \begin{bwslide}
        !           212: \diagram[p]{figure2a}
        !           213: \end{bwslide}
        !           214: 
        !           215: 
        !           216: \begin{bwslide}
        !           217: \ctitle        {AN EXAMPLE:\\ ISO TRANSPORT SERVICES ON TOP OF DoD TCP}
        !           218: 
        !           219: \vskip-0.1in
        !           220: \diagram[p]{figure2b}
        !           221: \end{bwslide}
        !           222: 
        !           223: 
        !           224: \begin{bwslide}
        !           225: \ctitle        {THE GOOD NEWS}
        !           226: 
        !           227: \begin{nrtc}
        !           228: \item  AN ORDERLY AND GRADUAL MIGRATION
        !           229: 
        !           230: \item  MAXIMIZES USE OF EXISTING RESOURCES
        !           231: 
        !           232: \item  PROOF OF CONCEPT: ISODE, DECnet/ISO
        !           233: 
        !           234: \item  FACILITATES BEST TOOL FOR THE JOB
        !           235: \end{nrtc}
        !           236: \end{bwslide}
        !           237: 
        !           238: 
        !           239: \begin{bwslide}
        !           240: \ctitle        {THE BAD NEWS}
        !           241: 
        !           242: \begin{nrtc}
        !           243: \item   A ``NON-PURE'' SOLUTION (PURITY IS A RELIGION!)
        !           244: 
        !           245: \item  DOES NOT SUPPORT A SINGLE TOOL FOR THE JOB
        !           246: \end{nrtc}
        !           247: \end{bwslide}
        !           248: 
        !           249: 
        !           250: \begin{bwslide}
        !           251: \ctitle        {SUMMARY}
        !           252: 
        !           253: \begin{nrtc}
        !           254: \item  THE GOOD: INTEGRATED (USE SERVICE EMULATORS)
        !           255: 
        !           256: \item  THE BAD: SEPARATE (USE APPLICATION GATEWAYS)
        !           257: 
        !           258: \item  THE UGLY: REVOLUTION (START FROM SCRATCH)
        !           259: \end{nrtc}
        !           260: \end{bwslide}
        !           261: 
        !           262: 
        !           263: \begin{bwslide}
        !           264: \ctitle        {ISODE}
        !           265: 
        !           266: \begin{nrtc}
        !           267: \item  AN OPENLY AVAILABLE ISO DEVELOPMENT ENVIRONMENT
        !           268: 
        !           269: \item  CODED ENTIRELY IN C
        !           270: 
        !           271: \item  OPERATING SYSTEMS: BERKELEY AND AT\&T \unix/
        !           272:     \begin{nrtc}
        !           273:     \item      REQUIRES NO KERNEL MODIFICATIONS
        !           274:     \end{nrtc}
        !           275: 
        !           276: \item  INFLUENCED A LOT BY GOSIP GUIDELINES
        !           277: \end{nrtc}
        !           278: \end{bwslide}
        !           279: 
        !           280: 
        !           281: \begin{bwslide}
        !           282: \ctitle        {THE APPLICATION ENVIRONMENT}
        !           283: 
        !           284: \vskip.15in
        !           285: \diagram[p]{figure4}
        !           286: \end{bwslide}
        !           287: 
        !           288: 
        !           289: \begin{bwslide}
        !           290: \ctitle        {AN ALTERNATE ENVIRONMENT:\\ MHS ARCHITECTURE (c.~1984)}
        !           291: 
        !           292: \vskip.15in
        !           293: \diagram[p]{figure5}
        !           294: \end{bwslide}
        !           295: 
        !           296: 
        !           297: \begin{bwslide}
        !           298: \ctitle        {TRANSPORT SERVICES}
        !           299: 
        !           300: \begin{nrtc}
        !           301: \item  CURRENTLY A TP0 TRANSPORT SERVICE IS USED
        !           302:     \begin{nrtc}
        !           303:     \item      OVER X.25 (FOR EUROPEANS, et. al.)
        !           304: 
        !           305:     \item      OVER TCP (FOR DEFENSE DATA NETWORK)
        !           306:     \end{nrtc}
        !           307: 
        !           308: \item  TCP-BASED SERVICE IS INDISTINGUISHABLE FROM A CONNECTION-ORIENTED
        !           309:        NETWORK SERVICE\\ (SEE RFC1006 FOR THE DETAILS)
        !           310: 
        !           311: \item  WORK WILL START SOON ON INTEGRATING A NATIVE TP4
        !           312: \end{nrtc}
        !           313: \end{bwslide}
        !           314: 
        !           315: 
        !           316: \begin{bwslide}
        !           317: \ctitle        {WHERE NEXT?}
        !           318: 
        !           319: \begin{nrtc}
        !           320: \item  UPGRADE TO FINAL (IS) SPECIFICATIONS
        !           321: 
        !           322: \item  ``COOKED'' SUPPORT FOR REMOTE OPERATIONS
        !           323: 
        !           324: \item  INTEGRATION OF:
        !           325:     \begin{nrtc}
        !           326:     \item      MHS
        !           327: 
        !           328:     \item      DIRECTORY SERVICES
        !           329: 
        !           330:     \item      VIRTUAL TERMINAL
        !           331:     \end{nrtc}
        !           332:        IMPLEMENTATIONS DONE AT OTHER SITES
        !           333: \end{nrtc}
        !           334: \end{bwslide}
        !           335: 
        !           336: 
        !           337: \begin{bwslide}
        !           338: \ctitle        {AVAILABILITY INFORMATION}
        !           339: 
        !           340: \begin{nrtc}
        !           341: \item  VERSION 3 AVAILABLE OCTOBER 14, 1987
        !           342: 
        !           343: \item  USPS: SEND CHECK OR INVOICE FOR \$200 US DOLLARS TO:
        !           344:     \[\begin{tabular}{l}
        !           345:        ISODE DISTRIBUTION\\
        !           346:        DEPARTMENT OF ELECTRICAL ENGINEERING\\
        !           347:        UNIVERSITY OF DELAWARE\\
        !           348:        NEWARK, DE  19716\\[0.25in]
        !           349:        TELCO: 302--451--1163
        !           350:     \end{tabular}\]
        !           351: 
        !           352: \item  DISTRIBUTION CONTAINS:
        !           353:     \begin{nrtc}
        !           354:     \item      1600bpi TAR TAPE
        !           355: 
        !           356:     \item      3 VOLUME DOCUMENTATION SET
        !           357:     \end{nrtc}
        !           358: \end{nrtc}
        !           359: \end{bwslide}
        !           360: 
        !           361: 
        !           362: \end{document}

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