Transcript Towards Wireless Overlay Network Architectures

SAHARA Second Winter Retreat
13-15 January 2003
Randy H. Katz, Anthony Joseph, Ion Stoica
Computer Science Division
Electrical Engineering and Computer Science Department
University of California, Berkeley
Berkeley, CA 94720-1776
1
Who is Invited/Who is Coming
Peter
Danzig
-
danzig@danzigthomas.com
1
Yatin
Chawathe
AT&T Labs
yatin@research.att.com
1
1
Jennifer
Rexford
AT&T Research
jrex@research.att.com
1
0
Hui
Zhang
Carnegie Mellon University
hzhang@cs.cmu.edu
1
Gang
Wu
DoCoMo Communications
wu@docomolabs-usa.com
1
Takashi
Suzuki
DoCoMo Communications
suzuki@spg.yrp.nttdocomo.co.jp
1
Srinivasan
Keshav
Ensim
keshav@ensim.com
1
Yuri
Ismailov
Ericsson
yuri.ismailov@era.ericsson.se
1
Per
Johansson
Ericsson
per.johansson@ericsson.com
1
Jan
Holler
Ericsson
jan.holler@era.ericsson.se
1
Martin
Korling
Ericsson
martin.korling@era.ericsson.se
1
Susie
Wee
Hewlett Packard
swee@hpl.hp.com
1
Timothy
Roscoe
Intel
troscoe@intel-research.net
1
0
2
Who is Invited/Who is Coming
Chris
Overton
Keynote Systems
chris.overton@keynote.com
1
Lili
Qiu
Microsoft
liliq@microsoft.com
1
Venkat
Padmanabhan
Microsoft
padmanab@microsoft.com
1
Helen
Wang
Microsoft
helenw@microsoft.com
1
Mike
Jones
Microsoft
mbj@microsoft.com
1
Hannu
Flinck
Nokia Research
hannu.flinck@nokia.com
1
Tal
Lavian
Nortel Networks
tlavian@nortelnetworks.com
1
Hitoshi
Takanashi
NTT Multimedia Laboratory
takanashi@nttmcl.com
1
Greg
Minshall
Redback Networks
minshall@redback.com
1
Bryan
Lyles
Sprint Labs
lyles@sprintlabs.com
1
Paul
Jardetzky
Sprint Labs
pjardetzky@sprintlabs.com
1
Doug
Tygar
UC Berkeley
tygar@eecs.berkeley.edu
1
John
Chuang
UC Berkeley
chuang@sims.berkeley.edu
1
David
Wagner
UC Berkeley
daw@eecs.berkeley.edu
1
Dipak
Ghosal
UC Davis
ghosal@cs.ucdavis.edu
1
Chen-Nee
Chuah
UC Davis
chuah@ucdavis.edu
1
Kimmo
Raatikainen
University of Helsinki
kimmo.raatikainen@nokia.com
1
Tom
Anderson
University of Washington
tom@cs.washington.edu
1
David
Wetherall
University of Washington
djw@cs.washington.edu
1
Cisco? Nortel?
1
1
1
0
3
Retreat Plan
Breakfast
0730-0830
Storage &
Active Networks
Break
1000-1030
Joint Session:
Building
Reliable Systems
Overview Talks
Randy, Ion,
Anthony
Break
Routing as a
Service
1800-1930
2100
Feedback
Lunch
1200-1330
1500-1530
6 Month Plan
Long
(Skiing)
Break
Dinner
Grad Student
Posters
Industry
Talks?
4
Retreat Plan
• Monday, 13 January 2003
– 1330-1500 Retreat Overview and Introductions
» Retreat & Sahara Overview, Randy Katz
» Griffin Status, Anthony Joseph
» I3 Status, Ion Stoica
– 1530-1700 Routing as a Service
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Routing as a Composed Service
• Routing as a Reachability “Service”
– Implementing paths between composed service instances,
e.g., “links” within an overlay network
– Multi-provider environment, no centralized control
• Desirable Properties
– Trust: verify believability of routing advertisements
– Agility: converge quickly in response to global routing changes
to retain good reachability “performance” (e.g., latency)?
– Reliability: detect service composition path failures quickly
to enable fast recomposition to maintain reachability
– Scalability and Interoperability: Adapt protocols via processing at
“impedance” matching points between administrative domains
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Possible Session Structure
• Coherent Presentation on Routing as a Service
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–
–
–
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What is a service?
Why is existing Internet routing NOT a service?
In which ways can routing be extended to make it more service like?
How are we exploring the design space? What have we learned so far?
How to evolve the existing routing model?
• Panel Session? Discussion? Short Updates? Handouts/Readings
in advance? What kind of feedback do we need?
–
–
–
–
–
–
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BGP Policy Agent: Sharad
Routing Verification: Lakshmi
BGP Agility: Morley
OverQoS: Lakshmi
Scalable Path Failure Detection: Matt, Shelley
Scalable Broadcast Federation: Mukund
I3 Talks/Integrated?
7
Plan for the Retreat
• Tuesday, 14 January 2003
– 0830-1000 Storage and Active Networking Directions
» Status and Brainstorming?
– 1000-1030 Break
– 1030-1200 Joint Session ROC & Oceanstore?
– 1930-2100 Graduate Student Research Poster Session
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Storage & Active Networking
Futures
• Tal’s Active Networking Testbed
• Survey of Research Opportunities in Storage
Wide-Area Networking
– Definition of the Disaster Recovery Application
– What are the new technological opportunities?
– George and Yin to jointly prepare and present
• Feedback from Industry people?
• Integration with ROC and OceanStore?
• Handouts in advance? White Paper?
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Plan for the Retreat
• Wednesday, 15 January 2003
–
–
–
–
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0830-1000 Six Month Planning
1000-1030 Break/Room Checkout/Photo Session
1030-1200 Industrial Feedback
1200-1300 Lunch
1300-1700 Bus back to Berkeley
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