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1.1 root 1: % run this through SLiTeX
2:
3:
4: \documentstyle[blackandwhite,landscape,oval,pagenumbers]{NRslides}
5:
6: \raggedright
7:
8: \begin{document}
9:
10: \title {A MODEST PROPOSAL}
11: \author {Dwight E.~Cass\\
12: Automation Sciences Laboratory\\
13: Northrop Research and Technology Center}
14: \date {May 15, 1986}
15: \maketitlepage
16:
17:
18: \begin{bwslide}
19: \ctitle {THE PROBLEM}
20:
21: \begin{nrtc}
22: \item IMMEDIATE VACUUM IN THE DEVELOPMENT OF
23: APPLICATION PROTOCOLS
24: \begin{nrtc}
25: \item EXPERIENCE SHOWS THAT APPLICATION
26: PROTOCOL DEVELOPMENT TAKES AT LEAST AS MUCH TIME AS
27: DEVELOPMENT OF LOWER-LEVEL PROTOCOLS
28: \end{nrtc}
29: \end{nrtc}
30: \end{bwslide}
31:
32:
33: \begin{bwslide}
34: \ctitle {THE PROBLEM (CONT.)}
35:
36: \begin{nrtc}
37: \item LACK OF NEAR-TERM AVAILABILITY OF MAP/TOP ON ALL %
38: MACHINES
39: \begin{nrtc}
40: \item NORTHROP HAS A STRONG COMMITTMENT
41: TO COMMUNICATE WITH THE CUSTOMER (DoD) ELECTRONICALLY
42: \end{nrtc}
43: \end{nrtc}
44: \end{bwslide}
45:
46:
47: \begin{bwslide}
48: \ctitle {THE CAUSE}
49:
50: \begin{nrtc}
51: \item MAP/TOP, WHILE AGRESSIVE, IS STILL YOUNG
52: \begin{nrtc}
53: \item FANTASTIC PROGRESS HAS BEEN MADE TO DATE,
54: BUT REALISTICALLY, A LOT MORE WORK IS REQUIRED
55: \end{nrtc}
56: \end{nrtc}
57: \end{bwslide}
58:
59:
60: \begin{bwslide}
61: \ctitle {THE CAUSE (CONT.)}
62:
63: \begin{nrtc}
64: \item NORTHROP HAS REQUIREMENTS NOW
65: \begin{nrtc}
66: \item FACTORY- AND DIVISION-WIDE NETWORKING
67: REQUIRED IN THE 88--89 TIMEFRAME
68: \item SINCE MAP/TOP SOLUTIONS AREN'T AVAILABLE ON EXISTING
69: FACILITIES,
70: INTERIM SOLUTIONS MUST BE PUT INTO PLACE QUICKLY
71: \item SOLUTIONS MUST BE CONSISTENT WITH THE
72: DIRECTION OF THE MAP/TOP COMMUNITY
73: \end{nrtc}
74: \end{nrtc}
75: \end{bwslide}
76:
77:
78: \begin{bwslide}
79: \ctitle {OBSERVATIONS}
80:
81: \begin{nrtc}
82: \item MANY OF THESE PROBLEMS HAVE PREVIOUSLY BEEN SOLVED, IN DIFFERENT
83: SETTINGS, WITHOUT LOSS OF GENERALITY
84: \begin{nrtc}
85: \item SOME OF THESE SOLUTIONS ARE QUITE MATURE (STABLE, ROBUST,
86: AND ENJOY A HIGH DEGREE OF VENDOR SUPPORT)
87: \end{nrtc}
88: \end{nrtc}
89: \end{bwslide}
90:
91:
92: \begin{bwslide}
93: \ctitle {OBSERVATIONS (CONT.)}
94:
95: \begin{nrtc}
96: \item MAP/TOP, BASED ON THE OSI MODEL, IS A STRONGLY LAYERED ARCHITECTURE,
97: WHICH FACILITATES
98: APPLICATION-INDEPENDENCE OF UNDERLYING PROTOCOLS
99: \begin{nrtc}
100: \item SERVICES ARE IMPORTANT,\\ IMPLEMENTATIONS ARE NOT
101: \end{nrtc}
102: \end{nrtc}
103: \end{bwslide}
104:
105:
106: \begin{bwslide}
107: \ctitle {TCP/IP AS THE INTERIM SOLUTION}
108:
109: \begin{nrtc}
110: \item MILSTD PROTOCOL SUITE MANDATED FOR ALL DoD NETWORKING
111: \begin{nrtc}
112: \item MATURE SET OF PROTOCOLS SINCE 1980\\ (DATING FROM c.1970)
113: \item EMPHASIS ON RELIABILITY AND SECURITY
114: \item WIDE VENDOR SUPPORT AND USER POPULATION
115: \item VENDOR SUPPORT TO OTHER TECHNOLOGIES (e.g., SNA)
116: \end{nrtc}
117: \end{nrtc}
118: \end{bwslide}
119:
120:
121: \begin{bwslide}
122: \ctitle {TCP/IP (CONT.)}
123:
124: \begin{nrtc}
125: \item TCP/IP PROVIDES ROBUST TRANSPORT SERVICES
126: \begin{nrtc}
127: \item FUNCTIONALITY EQUIVALENT TO TP4\\ (AS PER NRC REPORT)
128: \item MANY VENDORS OFFER BOARD-LEVEL IMPLEMENTATIONS AT THE
129: TRANSPORT LAYER
130: \end{nrtc}
131: \end{nrtc}
132: \end{bwslide}
133:
134:
135: \begin{bwslide}
136: \ctitle {CONSTRUCTING THE SOLUTION}
137:
138: \begin{nrtc}
139: \item BEST OF ALL SOLUTIONS REQUIRE COMPLEMENTARY CO-EXISTANCE:
140: \begin{nrtc}
141: \item UTILIZE TCP/IP FUNCTIONALITY NOT CURRENTLY PRESENT IN MAP
142: \item UTILIZE MAP/TOP FUNCTIONALITY AS IT BECOMES AVAILABLE
143: \item DEVELOP APPLICATIONS IN AN EVOLUTIONARY,
144: NOT REVOLUTIONARY FASHION
145: \end{nrtc}
146: \end{nrtc}
147: \end{bwslide}
148:
149:
150: \begin{bwslide}
151: \ctitle {WHERE TO JOIN THEM?}
152:
153: \begin{nrtc}
154: \item NETWORK LAYER (OR BELOW):\\
155: RE-INVENTS TCP\\ PREVENTS USE OF BOARD-LEVEL PRODUCTS
156: \item SESSION LAYER (OR ABOVE):\\
157: TOO MUCH DEPENDENCY ON TCP AND THE ARPANET CLIENT/SERVICE MODEL
158: \item TRANSPORT SERVICE ACCESS POINT:\\
159: TAKES ADVANTAGE OF TCP's STRENGTHS,\\
160: WHILE GIVING MAP/TOP A FREE HAND ABOVE
161: \end{nrtc}
162: \end{bwslide}
163:
164:
165: \begin{bwslide}
166: \ctitle {WORK TO DATE}
167:
168: \begin{nrtc}
169: \item REQUEST FOR COMMENTS (RFC) 983:\\
170: ISO TRANSPORT SERVICES ON TOP OF THE TCP
171: \item PROTOTYPE IMPLEMENTATION FOR 4.2BSD UNIX
172: \end{nrtc}
173: \end{bwslide}
174:
175:
176: \begin{bwslide}
177: \ctitle {ISO TSAP ON TOP OF THE TCP}
178:
179: \begin{nrtc}
180: \item SPECIFIES A FULL TP4 IMPLEMENTATION (ISO-8072)\\
181: EXCEPT FOR QUALITY OF SERVICE PARAMETERS
182: \item ADDRESSING IS TCP-BASED
183: \item IMPLICIT MAXIMUM TSDU SIZE\\
184: (TO BE RELAXED IN VERSION 2)
185: \end{nrtc}
186: \end{bwslide}
187:
188:
189: \begin{bwslide}
190: \ctitle {THE NEXT STEP}
191:
192: \begin{nrtc}
193: \item ACQUISITION OF PUBLIC-DOMAIN SESSION, FTAM, AND CASE IMPLEMENTATIONS
194: FOR TESTING PURPOSES
195: \item IMPLEMENTATION OF RFC983 ON THE WIDE RANGE OF MACHINES CURRENTLY
196: IN USE AT NORTHROP
197: \end{nrtc}
198: \end{bwslide}
199:
200:
201: \begin{bwslide}
202: \ctitle {MIGRATION STRATEGY}
203:
204: \begin{nrtc}
205: \item RFC983 NOT INTENDED AS A MIGRATION STRATEGY,
206: BUT COULD FORM THE BACKBONE FOR AN OVERALL TRANSITION PLAN
207: \item FUTURE VERSIONS OF RFC983 WILL TRACK DoD PLANNED EVOLUTION
208: \end{nrtc}
209: \end{bwslide}
210:
211:
212: \begin{bwslide}
213: \ctitle {MAXIMIZE BENEFITS}
214:
215: \begin{nrtc}
216: \item RFC983 PERMITS US TO UTILIZE THE NEW WORK
217: BEING DONE BY THE MAP/TOP COMMUNITY,
218: WHILE TAKING ADVANTAGE OF YEARS OF RESEARCH AND EXPERIENCE IN THE
219: TCP/IP COMMUNITY
220: \end{nrtc}
221: \end{bwslide}
222:
223:
224: \end{document}
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