Subject: SIGCOMM'94 Advance Program


Too large for a regular issue of the Digest, sent FYI to the readership.

PAT

  From: dowd@acsu.buffalo.edu (Patrick Dowd)
  Subject: SIGCOMM'94 Advance Program
  Followup-To: dowd@eng.buffalo.edu
  Reply-To: dowd@eng.buffalo.edu
  Organization: State University of New York at Buffalo
  Date: Thu, 12 May 1994 12:53:47 GMT


                           Advance Programme
                      ACM SIGCOMM'94 CONFERENCE
       Communications Architectures, Protocols and Applications

                      University College London
                              London, UK

                    August 31 to September 2, 1994
                 (Tutorials and Workshop, August 29-30)


                             Sponsored by
         The ACM Special Interest Group of Data Communication

This  conference provides an international  forum for the presentation
and discussion of communication network applications and technologies,
architectures,  protocols,  algorithms, and  performance models.   The
conference  and tutorials will be conducted on  the University College
London, London England.

    ----------------------------------
    T E C H N I C A L    P R O G R A M
    ----------------------------------

Monday 29 August 1994

*  7:30AM - 5:00PM 
   Tutorial and Conference Registration
   UCL CS Department, Pearson Building

*  9:00AM - 5:00PM, Tutorial T1
   "Personal Communication Services and Networks"
   Zygmunt Haas (AT&T Bell Labs)
   UCL CS Department, Pearson Building

*  9:00AM - 5:00PM, Tutorial T2
   "Protocol Performance"
   David D. Clark (MIT)
   UCL CS Department, Pearson Building

Tuesday 30 August 1994

*  7:30AM to 5:00PM 
   Tutorial and Conference Registration
   Edward Lewis Lecture Theatre, Windeyer Building

*  9:00AM - 5:00PM, Workshop W1
   "Topics    in   High   Performance   Networking   Support   of
    Distributed Systems" 
   Derek McAuley (University of Cambridge)
   UCL CS Department, Pearson Building

*  9:00AM - 5:00PM, Tutorial T3
   "Fiber Optic Networks"
   Paul  E. Green, Jr. (IBM Corporation)
   UCL CS Department, Pearson Building

*  9:00AM - 5:00PM, Tutorial T4
   "Multimedia Conferencing on the Internet"
   Van Jacobson (Lawrence Berkeley Laboratories)
   Edward Lewis Lecture Theatre, Windeyer Building

*  9:00AM - 5:00PM, Tutorial T5
   "Asynchronous Transfer Mode"
   Rainer Handel (Siemens Munich)
   UCL CS Department, Pearson Building

*  5:30PM - 8:30PM
   Welcoming Reception
   The Quad at University College London


Wednesday 31 August 1994

*  7:30AM to 5:00PM 
   Conference Registration
   Edward Lewis Lecture Theatre, Windeyer Building

*  9:00AM - 10:00AM
   Session 1: Keynote Address
   (1994 ACM SIGCOMM Award Winner)
   Edward Lewis Lecture Theatre, Windeyer Building

*  10:30AM-12:30PM
   Session 2: Protocol Performance
   Experiences with a High-Speed Network 

   Adaptor: A Software Perspective (Best Student Paper)
   P. Druschel (University of Arizona), L.L. Peterson (University of 
   Arizona), & B.S. Davie (Bellcore) 

   User-space Protocols Deliver  High Performance to Applications on a
   Low-Cost Gb/s LAN 
   A. Edwards, G. Watson, J. Lumley, D. Banks, 
   C. Calamvokis, & C. Dalton (Hewlett-Packard Labs, Bristol)  

   TCP Vegas: New Techniques for Congestion Detection and Avoidance
   L.S. Brakmo, L.L. Peterson, & S.W. O'Malley (University of Arizona)

   A Structured TCP in Standard ML
   E. Biagioni (Carnegie Mellon University)

*  12:30PM  - 2:00PM
   Lunch

*  2:00PM-3:30PM
   Session 3: Congestion Management

   Making Greed Work  in Networks: A  Game-Theoretic  Analysis of
   Switch Service Disciplines 
   S. Shenker (Xerox PARC)

   Scalable Feedback Control for Multicast Video Distribution in the Internet
   J. Bolot (INRIA), T. Turletti (INRIA) & I. Wakeman 
   (University College, London)

   Statistical Analysis of Generalized Processor 
   Sharing Scheduling Discipline
   Z.-L. Zhang, D. Towsley, & J. Kurose (University of Massachusetts)

*  4:00PM-5:30PM
   Session 4: ATM Flow Control

   The Dynamics of TCP Traffic over ATM Networks
   A. Romanow (Sun Microsystems) & S. Floyd (Lawrence Berkeley Labs)

   Reliable and Efficient Hop-by-Hop Flow Control
   C. Ozveren (DEC, Littleton), R. Simcoe (DEC, Littleton)  & 
   G. Varghese (Washington University, St. Louis)

   Credit Update Protocol for Flow-Controlled ATM 
   Networks: Statistical Multiplexing and Adaptive Credit Allocation
   H.T. Kung (Harvard University), T.  Blackwell (Harvard 
   University), & A. Chapman (BNR)

*  7:30PM - 10:00PM
   SIGCOMM Social: Reception and Dinner 
   The Dinosaur Room, Natural History Museum 
   (Tickets  Required)


Thursday 1 September 1994

*  7:30AM to 5:00PM 
   Conference Registration
   Edward Lewis Lecture Theatre, Windeyer Building

*  8:30AM - 10:00 AM
   Session 5: Internet Routing

   Flexible Routing and Addressing for a Next Generation IP
   P. Francis (NTT Software Labs) & R. Govindan (Bellcore)

   An Architecture for Wide-Area Multicast Routing
   S. Deering(Xerox PARC), D. Estrin (University of Southern 
   California), D. Farinacci (Cisco Systems), V. Jacobson 
   (Lawrence  Berkeley Labs), C.-G.  Liu (University of  Southern
   California) & L. Wei (University of Southern California) 

   Distributed Routing Based on Link-State Vectors
   J. Behrens & J.J.  Garcia-Luna-Aceves (University of 
   California at Santa Cruz)

*  10:30AM-12:00PM
   Session 6: ATM Switching and Signalling

   Signaling and Operating System Support for  
   Native-Mode ATM Applications
   R. Sharma & S. Keshav (AT&T Bell Labs)

   Experiences of Building ATM Switches for the Local Area
   D.R. McAuley, R.J. Black & I.M. Leslie (University of Cambridge)

   Controlling Alternate Routing in General-Mesh 
   Packet Flow Networks
   S. Sibal (RPI) & A. DeSimone (AT&T Bell Labs)

*  12:00PM  - 1:30PM
   Lunch

*  1:30PM-3:00PM
   Session 7: Nueral and Optical Networks

   On Optimization of Polling Policy Represented 
   by Neural Network
   Y. Matumoto (I.T.S., Inc., Japan)

   An Optical Deflection Network
   J.  Feehrer  (University of  Colorado,  Boulder),  L.  Ramfelt
   (University of Colorado, Boulder/Royal Institute of Technology,   
   Stockholm), & J. Sauer (University of Colorado, Boulder) 

   Conflict-Free Channel Assignment for an Optical 
   Cluster-Based Shuffle Network Configuration
   K.A. Aly (University of Central Florida)

*  3:30PM-5:30PM
   Session 8: Selected Topics

   MACAW: A Media Access Protocol for Wireless LANs
   V. Bharghavan (UC Berkeley), A. Demers (Xerox PARC), 
   S. Shenker (Xerox PARC) & L. Zhang (Xerox PARC)

   Asymptotic Resource Consumption in Multicast 
   Reservation Styles
   D.J. Mitzel (University of  Southern  California) & S. Shenker
   (Xerox PARC) 

   Highly Dynamic  Destination-Sequenced  Distance-
   Vector Routing  (DSDV) for Mobile Computers
   C.E. Perkins & P. Bhagwat (IBM, Watson Research Center)

   A Methodology for Designing Communication Protocols
   G. Singh (Kansas State University)

*  5:30PM - 6:30PM
   SIGCOMM Business Meeting


Friday 2 September 1994

*  8:30AM - 10:00AM
   Session 9: Traffic Models

   Wide-Area Traffic: The Failure of Poisson Modeling
   V. Paxson & S. Floyd (Lawrence Berkeley Labs)

   Analysis, Modeling and Generation of Self-Similar 
   VBR Video Traffic
   M.W. Garrett & W. Willinger (Bellcore)

   An Algorithm for Lossless Smoothing of MPEG Video
   S.S. Lam, S. Chow, & D. Yau (University of Texas, Austin)

*  10:30AM-12:00PM
   Session 10: Host Software

   USC: A Universal Stub Compiler
   S.W. O'Malley, T. Proebsting, & A. Montz (University of Arizona)

   An Object-based Approach to Protocol Software Implementation
   C.-S. Liu (Chung Yuan Christian University, Taiwan)

   Improved Algorithms for Synchronizing Computer Network Clocks
   D.L. Mills (University of Delaware)

*  12:00PM - 12:15PM
   Closing Session
   
Note: Program subject to change.
       
     -----------------
     T U T O R I A L S
     -----------------
                           
Tutorial T1 
-----------
Zygmunt Haas, AT&T Bell Labs
"Personal Communication Services and Networks"

The  recent explosion  of interest  in  wireless and mobile  networks,
stimulated  by  the effort  of  Personal  Communication  Services  and
Networks (PCS & PCN) to  be  deployed at  the  beginning  of  the next
century,  suggests   the  enormous   technological,   scientific,  and
commercial potential in this field. The subject of wireless and mobile
communication  integrates  the  large body  of  knowledge  accumulated
through   the  traditional  radio   research,  the   large  networking
experience accumulated through the proliferation of LANs and WANs, and
the  vision  of  ubiquitous  connectivity anywhere,  at anytime,  with
anyone, and in any format.
   The  tutorial exposes both the theoretical  and  the practical
aspects  of mobile  networking,  from  a  networking  and  application
perspective.   We   will   present   the  concept,  architecture,  and
functionality of Personal Communications Services  and Networks (PCS &
PCN)  and  Universal  Personal  Telecommunications (UPT)  and  we will
describe the most  common  platform  for  mobile  communications:  the
wireless systems. In  particular, systems such  as cellular, cordless,
and satellite will be  discussed. Existing  and in-progress  standards
are also outlined.
   Finally, an abundance of examples of  the  wireless and mobile
networks will be described, giving realism to the presented material. 
TOPICS:
* Elements of Wireless Mobile Communications
* Wireless Services and Applications
* The Cellular Concept 
* The Cordless Concept 
* Digital Communication Networks
* Local-Area Wireless Data Access
* Wide-area Wireless Data Access
* Mobile Satellite Communications
* Standardization of Wireless Networks
* PCS/PCN and UPT
* Summary: Where we have started and where are going .

Zygmunt Haas received his B.Sc. in EE in 1979 and M.Sc. in EE in 1985,
both with  Summa Cum Laude.   From  1979  till 1985  he worked for the
Government of Israel.  In  1988,  he  earned  his Ph.D.  from Stanford
University researching fast packet-switched networks, and subsequently
joined AT&T Bell Laboratories in Holmdel NJ, where he is now  a Member
of  Technical  Staff in the Wireless Networks Department.  Dr. Haas is
an author of  numerous  technical papers and holds several  patents in
the field  of high-speed networking, wireless  networks,  and  optical
switching.  He has organized  several workshops and  served as a guest
editor for  JSAC issues.  Dr. Haas is a Senior  Member of IEEE and his
interests  include:   mobile   and  wireless  communication  networks,
personal  communication services,  high-speed communication protocols,
and optical switching.



Tutorial T2 
-----------
David D. Clark, MIT
"Protocol Performance"

Getting proper  performance from  a  network  or  protocol  is often a
difficult task. This tutorial uses examples from the Internet (TCP/IP)
protocol suite to illustrate critical performance issues. The focus is
on  providing  real-world  advice  on  how  to  design  and  implement
protocols in ways that  avoid performance  problems. The  presentation
will include  examples  of various  performance  problems and  how  to
detect and recognize them.

Topics
* Performance issues (reliability, throughput and delay)
* Implementation bottlenecks
* Specifications and their limitations
* Heterogeneity and its impact on implementation
* Network dynamics
* Visualizing protocol performance
* Limits of protocol performance

Dr. David Clark  is a senior research scientist  at MIT Laboratory for
Computer Science  and  a  recipient  of the ACM SIGCOMM  Award. He has
worked  on TCP/IP  since the  mid-1970s and  from  1981  to  1989  was
chairman of the Internet Activities Board. He is widely known for  his
insight into  protocol design and performance  and for  his  skill  in
identifying and  eliminating  myths about  protocol implementation and
performance.  His current areas  of  research include high-performance
networks,   the  evolution   of  the  Internet,  ATM  and  information
networking. He received his doctorate from MIT in 1973.

Tutorial T3 
-----------
Paul E. Green, Jr., IBM
"Fiber Optic Networks"

Fiber  optic   technology  has  completely  transformed  the  internal
operation of the world's telephone networks and is beginning to impact
local  computer networks.  Compared to  the  voice  grade  phone  line
technology, which defined  most of the  network architectures  that we
are  still  living with  today,  fiber  offers ten orders of magnitude
better bandwidth and an  equal  improvement in  achievable  bit  error
rate.  By use of WDM and circuit switching, the additional benefits of
protocol transparency can be achieved.
   There is a widespread  feeling that  the generation of network
that  will  follow today's ATM and upgraded  Internet structures might
very  well   be  based   on  techniques  that  directly  unlock   this
revolutionary improvement at the physical level.
   The  course is  devoted  to  the  new  class  of "all-optical"
networks  that attempt  to  do  this.  The  lecturer  will  cover  the
optoelectronic components  involved and will  also treat  some  of the
network  architectural  consequences,  the  regulatory   and  economic
picture, and review some systems already implemented.

TOPICS 
* Motivating fiber optic networks
* Fibers, couplers and taps
* Optical resonant structures
* Laser diodes and amplifiers
* Optical receivers
* System considerations
* Network topologies and link budgets
* Protocols, layers and network control
* Some implemented systems
* Status and prospects

Paul E. Green, Jr, is Manager of Advanced Optical Networking Member at
IBM Research in Hawthorne, NY.  He received the ScD degree from M.I.T.
in  1953, and after some  years at M.I.T. Lincoln Laboratory, where he
made pioneering  contributions to spread spectrum, adaptive receivers,
radar astronomy and seismic data processing, he joined IBM Research in
1969.  At  IBM  he has held  a  variety  of  management and  Corporate
Technical  Staff  positions. His technical interests  have centered on
computer  network  architecture,  and  he  has  received  several  IBM
Outstanding Innovation Awards for his  role in the initial formulation
and promotion of Advanced Peer to  Peer Networking,  now the basis for
further evolution of IBM's System Network Architecture. He is a member
of   the  National  Academy  of   Engineering,  in  1983   was   named
Distinguished Engineering Alumnus by North Carolina  State University,
and received the IEEE's Simon Ramo  Medal in 1991. He is the author of
many  technical   papers,  has   edited   several  books  on  computer
communications,  and  is  the  author  of  the  textbook  Fiber  Optic
Networks,  published  by  Prentice  Hall  in  June,1992.  He  has been
President of  both the IEEE  Communication  Information Theory Society
and the Communication Society.

Tutorial T4 
-----------
Van Jacobson, LBL
"Multimedia Conferencing on the Internet" 

An architectural overview  and detailed walk-through of  the protocols
and applications that provide  real-time, multiparty, audio, video and
shared workspace conferencing on today's Internet.
   Experiments and demonstrations over the Internet MBONE and the
DARTNET  testbed  have  shown   that   multimedia   and   conferencing
applications can indeed work  over  IP internets.  Playback algorithms
that  adapt  to  variations  in  network  delay  (such  as   VAT)  and
information  distribution  algorithms  designed  to  facilitate shared
workspaces (such  as those used in the  shared  whiteboard)  have made
these sorts  of applications  possible. This tutorial describes  these
algorithms and the applications that use them.
Topics
* IP as a real-time infrastructure: multicasting and queueing
* Adaptive Playback: VAT
* Managing Sessions: SD
* Managing Shared Workspaces: Shared Whiteboard
* Implications for the future of IP

Van Jacobson is a senior researcher at Lawrence Berkeley Laboratories,
where he works on real-time system performance, protocol and operating
system performance.  He is widely known for his groundbreaking work on
TCP/IP  performance,  TCP/IP   congestion  control,  and  support  for
multimedia  applications  on the  Internet. He is  the recipient of  a
number  of  awards and  teaches  periodically  at  U.C.  Berkeley  and
Stanford University.  

Tutorial T5 
-----------
Rainer Handel, Siemens Munich
"Asynchronous Transfer Mode" 

The  tutorial  will  provide  a   comprehensive  introduction  to  the
Asynchronous Transfer Mode (ATM). Both technical and marketing aspects
of ATM will be addressed. ATM specification is not yet complete but in
a state that allows implementations which are basically compliant with
a worldwide agreed, unique standard supporting  data, voice, image and
multimedia applications.
       The presentation of the concept of ATM networking  will include
the ATM  protocol reference model,  the architecture of  ATM networks,
interfaces  and procotols, traffic  control  and resource  management,
signalling, operational  aspects,  ATM evolution  and  internetworking
aspects, and of course a detailed description of the ATM layer and ATM
adaptation layer  functions. An overview of how ATM cells are switched
and  transmitted  will  also  be  given. The  possible use of ATM in a
business   and  residential  environment  and  its  market  acceptance
depending on product availability, cost  and feature offerings will be
clarified.   
TOPICS:  
* High speed networks  
* ATM concept 
* ATM protocols  
* ATM interfaces 
* interworking and evolvability
* market  aspects 
* switching and transmission products 
* network  implementations and  service offerings  

Rainer Handel  has  been with Siemens  (Public Communications Networks
Group)  since  1978 doing system  design and software  development for
switching  systems,  ATM  conceptual  and  standardization  work,  ATM
network and  product planning,  and currently long-term telecom market
and  technology trend evaluation. For several years  he  was active in
the standards bodies  CCITT, ETSI and T1, and is the author of several
papers and a book on ATM.

Workshop W1 
----------
Derek McAuley, University of Cambridge
"Topics in High Performance Networking Support of Distributed Systems" 

This  one day workshop will present the experiences of the speakers in
building various  components  of  distributed  systems  which  aim  to
effectively  utilise modern  high performance  networks. This workshop
consists of 4 talks. Each  talk will be 60 minutes with 15 minutes for
discussion.

1. The CHORUS Communication Architecture, Marc Rozier

The   communication   service  is   a  key  component  of  the  CHORUS
micro-kernel  architecture. First,  it provides  the  basic  framework
allowing  efficient   modular  operating  system  implementations.  By
dramatically reducing the overhead of  local communications, it is key
to the success of such  serverized implementations, which are now able
to  compete  with  monolithic  implementations.  Second,  it  provides
efficient, network-transparent, communication  services, well  adapted
to the distribution of  the operating system servers.   In particular,
it makes  possible  the  implementation  of UNIX systems  on massively
parallel architectures, offering a single system image to their users.
This tutorial will  address the  various aspects of this communication
architecture, from  the definition of the communication  services,  to
some  aspects of  its  implementation.  Emphasis  will  be  placed  on
insights from previous versions of this service.

2. The Organization of Networks in Plan 9, Rob Pike

In  a distributed system networks  are  of paramount importance.  This
tutorial   describes  the   implementation,   design  philosophy   and
organization of  network support  in  Plan  9. Topics include  network
requirements  for  distributed  systems,  our  kernel  implementation,
network naming, user interfaces and performance. We also observe  that
much of this organization is relevant to current systems.

3. Mixed media applications, David Tennenhouse

WWW  is a rapidly growing  phenomena which highlights the  interesting
applications possible with mixed media types. From experience with the
WWW this tutorial will  address the issues  raised in supporting these
mixed media types and the problems  in building systems  which support
media with time constraints.

4. What can you do with ATM today?, Derek McAuley

ATM must now be officially a  bandwagon. Some will tell you it  solves
all the world's problems because it was designed to, while others will
say  it's  good  for  nothing.  The  reality  and  hype  are  hard  to
distinguish. This talk will address what ATM can be used for today and
highlight those features for which it  is rightly criticised not least
of  which is  end-system  integration.  The talk could  be  subtitled,
"Difficult questions to ask your ATM salesman''.


Marc Rozier is the head  of the Micro-Kernel Department  within Chorus
systemes. He graduated from Ecole Nationale Superieure Informatique et
de  Mathematiques Applique'es  de Grenoble (ENSIMAG) before earning  a
doctor's   degree   in  Computer   Science  from   Institut   National
Polytechnique  de Grenoble (INPG). In 1981-82,  he was involved in the
CESAR  project at  IMAG  (Grenoble),  working  on  the  Validation  of
Distributed Systems. He gained experience in programming languages for
distributed applications  and distributed  systems. He joined INRIA in
1982 as  a  researcher  in  the CHORUS  distributed  operating  system
project. In 1987, he became one of the founders of Chorus systemes. He
is one of the main designers of the CHORUS-v3 Micro-Kernel technology.
He is the author of several publications in international journals and
conferences.

Rob Pike is  well known for his appearances on "Late Night with  David
Letterman",  is  also  a  Member  of  Technical  Staff  at  AT&T  Bell
Laboratories in Murray Hill, New Jersey, where he has been since 1980,
the same year he won  the  Olympic silver medal in Archery. In 1981 he
wrote the first  bitmap window system  for Unix systems, and has since
written ten  more.  With Bart Locanthi he designed  the Blit terminal;
with Brian Kernighan he  wrote The Unix  Program- ming Environment.  A
shuttle mission nearly  launched a gamma-ray telescope he designed. He
is a Canadian citizen and has never written a program that uses cursor
addressing.

David Tennenhouse is  an Assistant  Professor of Computer Science  and
Electrical Engineering at MIT's Laboratory for Computer Science. He is
leader  of  the  Telemedia,  Networks  and  Systems  Group,  which  is
addressing  systems  issues  arising  at   the  confluence   of  three
intertwined  technologies: broadband networks,  high  definition video
and distributed computing.   David  studied electrical  engineering at
the  University of Toronto, where he received  his B.A.Sc. and M.A.Sc.
degrees.  In 1989 he completed his Ph.D. at the Computer Laboratory of
the University  of Cambridge. His Ph.D.  research focused on ATM-based
site interconnection issues. This work, which was conducted within the
Unison  Project, led to  the early implementation of an ATM-based wide
area testbed.

Derek  McAuley  is  a  Lecturer  in  the  Computer  Laboratory at  the
University  of  Cambridge. His research  interests include networking,
distributed   systems   and   operating  systems.    Recent  work  has
concentrated on the support  of time dependent  mixed  media types  in
both  networks and operating systems. He has failed to leave Cambridge
since  arriving in  1979 to read Mathematics. In 1989 he completed his
Ph.D. on ATM internetworking. He has had a hand in  de-commissioning 4
ATM  networks,  including  Tennenhouse's carefully  constructed Unison
platform.
 
              
      ---------------
      L o c a t i o n
      ---------------

The conference will be held in the Edward Lewis  Lecture Theatre which
is located in the  Windeyer Building on the UCL campus.  This building
is located on the corner of  Cleveland Street and Howland Street, with
the entrance  on  Cleveland Street.  Tutorials are all in UCL Computer
Science  Department in the Pearson Building, except T4 (Van  Jacobson)
on  the Tuesday which is held in the Edward Lewis Lecture Theatre. 

The main entrance of UCL  is located at the north end of Gower Street,
close to Euston Square, Warren Street,  or Euston tube stations.   The
UCL  Computer Science  Department is located in  the  basement of  the
Pearson Building.  Location


       ---------------------------
       T r a n s p o r t a t i o n
       ---------------------------

* Getting to  London 

There  are  four  airports  in  and  around   London.   Here  is  some
information that  might help you to plan your journey.  Please consult
your travel agency or the airports directly for further information.

LONDON Heathrow Airport: 24 km west of London 
Telephone: +44-81-745-6156 
LONDON Gatwick Airport: 46 km south of London 
Telephone: +44-293-535-353 
STANsted Airport: 55 km north east of London 
Telephone: +44-279-680-500 

* Getting to UCL and Hotels

UCL is located  in central London, and is served by Warren St,  Euston
and Euston Square Underground (tube) stations, as well as several main
bus  routes.   The department  of  computer  science is  right  by the
entrance to the main quadrangles, on Gower Street.

>From Heathrow:  Best  by  tube with Victoria Line  to  Euston  Station
(about #3, 50 minutes). Alternatives are via Bus with London Transport
A1 Airbus to Victoria Station (45 minutes).

For local hotels it is probably best to go to Euston Station and get a
taxi from  there  unless  you have a  street map already  and know the
nearest tube station.  A free tube map may  be obtained at any  ticket
office.

>From Gatwick:  Best  by train, BR  Gatwick Express  to London Victoria
Station every 15 minutes (about #8.60, 30 minutes).

Unless you plan to sightsee  outside London a car  is probably a waste
of time.  Tube  fares are based on a zone system. After 9:30AM you can
get One Day Travel cards which allow you unlimited travel within given
zones  for the rest of the day -  that includes train and bus services
within  that zone too.  Zones 1,2 & 3 #2.30 pounds.   Zones  1-5 #2.60
pounds.


        -------------------------
        A c c o m o d a t i o n s
        -------------------------

The following hotels are  walking distance from the conference meeting
room  on  the  UCL  campus.   Contact  the  hotel  directly  to  place
reservations.It  is highly recommended that reservations  are  made as
early as possible. Refer to SIGCOMM'94 when making the reservation.

*  Hotel Ibis Euston
 3 Cardington Street, NW1
 Telephone: +44-71-388-7777, Fax: +44-71-388-0001
 Total Rooms: 300
 Single Room #49.50, Double Room #49.50
 Near UCL, about 10 minute walk from main Conference Hall. 

*  St. George's Hotel 
 Langham Place, W1N
 Telephone: +44-71-580-0111, Fax: +44-71-436-7997
 Total Rooms: 86
 Single Room: #80.00, Double Room: #100.00 
 (Includes Continental Breakfast)
 Situated near Oxford Circus, about 10 minute walk from main venue. 

*  RAMSAY HALL 
 20 Maple Street, W1P
 Total Rooms: 400
 Telephone: +44-71-387-4537, Fax: +44-71-383-0843
 Single Room: #19.50, Double Room: not available.
 (Includes Continental Breakfast) 
 Student residence used as hotel during summer break, 5 minute walk 
 from main conference venue.

*  Hotel Russell 
 Russell Square, WC1
 Telephone: +44-71-837-6470, Fax: +44-71-837-2857
 Total Rooms: 328
 Single Room: #70.00, Double Room: #90.00 
 (Includes Continental Breakfast)
 Old Victorian Style Hotel. About 15 minute walk from Conference 
 venues. Russel Square  Station is on the Picadilly  line which
        reaches to Heathrow Airport. Airport Bus stop nearby as well. 

*  Forte Crest Bloomsbury 
 Coram Street, WC1
 Telephone: +44-71-837-1200
 Fax: +44-71-837-5374
 Total Rooms: 230
 Single Room: #69.00, Double Room: #79.00 
 (Includes Continental Breakfast)
 Modern hotel near Hotel Russell.

There  are  a large  number  of hotels near the conference. Almost any
hotel in the WC1 area of London is within 15 minutes walking distance.
A    list    of    more    hotels    may    be     found    via    www
(http://www.cs.ucl.ac.uk/sigcomm94)       or       anonymous       ftp
(norman.eng.buffalo.edu:/pub/SIGCOMM94). The list also includes nearby
lower cost housing and youth hostels.


    ------------------------------------------------
    R E G I S T R A T I O N    I N F O R M A T I O N
    ------------------------------------------------

Full conference  registration  includes breaks, lunch, Tuesday evening
reception, one  ticket to dinner in the  Dinosaur Room of the  Natural
History Museum on Wednesday, and a copy of the conference proceedings.

Student  registration includes breaks, lunch and proceedings but  does
not include the  dinner/museum event.  On site registration will begin
Monday August 29, 1994 from 7:30AM - 5:00PM, and every day of the con-
ference starting at 7:30 am.



ACM and SIGcomm Membership
--------------------------

If  you are not an ACM or a SIGCOMM member at this time, you may  join
now to take  full advantage of ACM/SIGcomm Member or Student rates for
SIGCOMM94:

- ACM Associate Member Dues       $82/#52
- Add SIGCOMM to ACM Membership       $22/#15
- ACM Student Dues                   $25/#17
- Add SIGCOMM to ACM Student Membership $15/#10
- SIGCOMM Membership only (non-ACM)   $50/#32

Total Membership Fees              $/#  _________

(Note: $ indicates U.S. dollars, and # British Pounds Sterling)

To advance the sciences and arts of information processing; to promote
the free interchange of  information about  the sciences  and  arts of
information processing both among  specialists and  among the  public;
and  to  develop  and  maintain  the  integrity  and   competence   of
individuals engaged  in  the  practice  of  information processing.  I
hereby affirm that I subscribe  to the purpose of  ACM and  understand
that my membership is not transferable.

Signature _________________________________________ Date ____________


Tutorials 
---------

Check each tutorial attending.  The tutorial registration fee includes
one copy  of the tutorial notes and  lunch.  Tutorials  are on a first
come first serve basis.

- T1  Personal Communication Services & Networks (Monday) 
- T2  Protocol Performance (Monday)
- T3  Fiber Optic Networks (Tuesday) 
- T4  Multimedia Conferencing on the Internet (Tuesday) 
- T5  Asynchronous Transfer Mode (Tuesday) 
- W1  Workshop on Distributed Systems (Tuesday)  

Tutorial Rates         
   Postmarked by          Postmarked
   aug/1/1994            after aug/1/1994
                                          
ACM/SIG Member          _____@ $275/#172        _____@ $325/#205  
Non-Member              _____@ $350/#220        _____@ $400/#250 
Student                 _____@ $138/#87         _____@ $175/#110 

Total Tutorial Fees     _____$/#                _____$/#  


Special Needs 
-------------

Vegetarian Meals:     - Yes   - No


Conference Registration
-----------------------

Please complete and  send  registration form, with check,  credit card
information or money orders (no purchase orders) to the address below.
Registrations accepted  via postal  mail,  fax or  email (with  credit
card) only.

    Postmarked by          Postmarked
    Aug/1/1994            after Aug/1/1994
                                          
ACM/SIG Member   _____@ $315/#200  _____@ $365/#230  
Non-Member        _____@ $397/#252   _____@ $440/#275 
Student           _____@ $100/#63  _____@ $130/#82 
 
Total Registration  Fees    $/# _____               $/# _____

Extra Dinner/Museum Ticket      _____@ $55/#35


TOTAL ENCLOSED             $/#  _____ (ACM/SIGCOMM Membership, tutorials,
                                       conference registration)



NAME _________________________________________________________________

AFFILIATION __________________________________________________________

ADDRESS ______________________________________________________________

______________________________________________________________________

PHONE _____________________________ FAX ______________________________

Email ADDRESS ________________________________________________________

SIGCOMM Member?  - YES      - NO
ACM/SIGCOMM Member Number ____________________________________________

CREDIT CARD PAYMENT  - VISA   - MASTERCARD   - euroCARD

CARD HOLDER NAME _____________________________________________________

CARD NUMBER ______________________________________ EXP. DATE _________

SIGNATURE ____________________________________________________________


Please send this  form and a check,  credit card information  or money
orders (no purchase orders) to SIGCOMM'94.  Registrations accepted via
postal mail, fax or email only.

Send U.S. or       Send Pound Sterling
Credit Card Payments to:

Patrick McCarren                        Soren-Aksel Sorensen
ACM - 17th Floor                        Dept. of Computer Science
1515 Broadway                           University College London
New York, NY 10036                      London WC1E 6BT
USA                                     United Kingdom
phone: +1 212/626/0611                  phone: +44 71 380 7269
fax: +1 212/302-5826                    fax +44 71 387 1397
mccarren@acm.org 

Email registrations  can  only  be  made  by a credit card  during the
pre-registration period ending 1 August 1994 and must use credit  card
payment.   A registration confirmation  letter  will  be sent to  each
participant  upon  receipt of  the  completed  registration  form  and
accompanying  payment.   Registration fee  will  be  refunded,  less a
$30/#19 administration fee, if  cancelation  notification  is received
prior  to  15  August  1994.  Substitution  for  a  paid  attendee  is
acceptable.
       
     ----------------------------------------------
     C o n f e r e n c e    O r g a n i z a t i o n
     ----------------------------------------------

General Chair:   Jon Crowcroft, University College London
Program Chairs:  Stephen Pink, Swedish Institute of Computer Science
                 Craig Partridge, BBN (Program Co-Chair for North America)

Ian F. Akyildiz, Georgia Institute of Technology, USA
Lillian N. Cassel, Villanova Univ., USA
Vinton Cerf, MCI, USA
Lyman Chapin, BBN, USA
Jon Crowcroft, Univ. College London, UK
Andre Danthine, Univ. of Liege, Belgium
Gary Delp, IBM, USA
Patrick W. Dowd, SUNY/Buffalo, USA
Deborah Estrin, Univ. Southern California, USA
David Feldmeier, Bellcore, USA
Sally Floyd, Lawrence Berkeley Laboratory, USA
David Greaves, ORL Cambridge, UK
Per Gunningberg, Swedish Institute of Computer Science, Sweden
Christian Huitema, INRIA, France
David Hutchison, Lancaster Univ., UK
Raj Jain, Ohio State University, USA
Jim Kurose, Univ. of Massachusetts, USA
Ian Leslie, Univ. of Cambridge, UK
David Oran, Digital Equipment Corp, USA
Gerard Parr, University of Ulster, Northern Ireland
Guru Parulkar, Washington Univ. St Louis, USA
Krzysztof Pawlikowski, Univ. of Canterbury, New Zealand
Bernhard Plattner, ETH Zurich, Switzerland
Scott Shenker, XEROX PARC, USA
Deepinder Sidhu, Univ. of Maryland-BC, USA
Jonathan M. Smith, Univ. Pennsylvania, USA
Khosrow Sohraby, Univ. of Missouri - Kansas City, USA
James Sterbenz, IBM Research, USA
Greg Watson, Hewlett Packard Labs, UK
Greg Wetzel, AT&T Bell Laboratories, USA
Lixia Zhang, XEROX PARC, USA


  ---------------------------------------------------
  F O R   A D D I T I O N A L   I N F O R M A T I O N
  ---------------------------------------------------

Additional information may be found/requested from:

www:           http://www.cs.ucl.ac.uk/sigcomm94
anonymous ftp: norman.eng.buffalo.edu:/pub/sigcomm94
email:         sigcomm94@eng.buffalo.edu
fax:           +1 716.645.3656
phone:         +1 716.645.2406
