1

SAHARA Second Winter Retreat

13-15 January 2003

Randy H. Katz, Anthony Joseph, Ion StoicaComputer Science Division

Electrical Engineering and Computer Science DepartmentUniversity of California, Berkeley

Berkeley, CA 94720-1776

2

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 0

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

3

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 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 1

Paul Jardetzky Sprint Labs pjardetzky@sprintlabs.com 1

Doug Tygar UC Berkeley tygar@eecs.berkeley.edu 1 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 0

David Wetherall University of Washington djw@cs.washington.edu 1

Cisco? Nortel?

4

Retreat Plan

Lunch

Long(Skiing)Break

1200-1330

Breakfast

Dinner

0730-0830

Break

Break

1000-1030

1500-1530

1800-1930

Overview TalksRandy, Ion,

Anthony

Joint Session:Building

Reliable Systems

Routing as aService

Storage &Active Networks

Feedback

6 Month Plan

Grad StudentPosters

IndustryTalks?

2100

5

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

6

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

7

Possible Session Structure• Coherent Presentation on Routing as a Service

– 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?

– 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?

8

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

9

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?

10

Plan for the Retreat

• Wednesday, 15 January 2003– 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