1 Report from NGI Testbed meeting at Berkeley, Jul 21-22, 1999 Les Cottrell – SLAC, Presented at the PPDG planning meeting, Caltech 8/5/99

2 Purpose of meeting 1/2 Involved configuration discussion among – vBNS, Abilene, ESNet, MREN, NTON 1). data flow analysis discussions with the application designers to translate their expectations for QoS into network services and capabilities –When will application be ready? –Expected duty-cycle for the application? 2). identify site LAN issues for carrying the WAN QoS through to the end systems 3). identify WAN issues: –hardware needed to provide the QoS services at the sites –bandwidth allocations needed to support the required QoS –hardware needed at the peering points to carry QoS across AS domain boundaries

3 Purpose of meeting 2/2 identify people support issues for the LAN and WAN discuss software infrastructure needed at sites to support –configuration management and access control for the QoS services. discussion of measurement and monitoring approach –to identify infrastructure that can be used to evaluate and diagnose the functioning of the QoS components and capabilities.

4 Preparation Table with: –Contacts (PIs, LAN, WAN & application contacts) –Sites involved & connectivity, application & systems –Bandwidth, latency, QoS requirements See: for PPDG table

5 Agenda Presentations by applications Typical LAN configurations Breakouts on WAN & Applications Presentations on measurements: –Surveyor, PingER, Abilene/SNMP, Pchar, Netlogger Presentations on QoS testing etc.

6 Applications

7 Interconnections

8

9 Issues for PPDG Questions after PPDG presentation: –What are the needs for interactive use: Simultaneous users, length and volumes of flows, end points, caching, how much data before one can start to look at results, latency/jitter, now, 1 year, in production etc. –No questions were raised on bulk requirements Unclear whether people realize there is a need for QoS for bulk-data requirements in order to reduce impact on more time critical stuff

10 Issues from meeting 1/2 How to connect up site to testbed –Testbed path, production path Initial tests with servers on testbed How to get data from production servers to test path, how does application choose, how is it implemented Set expectations for testbed –reliability, availability very variable, running beta code routers need rebooting, unstable –need a project plan - where will be & when –Fraction of ESnet etc. set up for testbed –Interconnection of MREN, Abilene, Esnet

11 Issues from meeting 2/2 QoS: –How to control CAR, WFQ, (W)RED –Sites mark premium services –Resource/reservation management –How to automate / manage –Recording usage by service etc. Can one get by with infinite bandwidth (e.g. NTON), where does one get biggest bang for buck? Monitoring at beyond OC3/OC12 speeds Reservation of resources (network, supercomputer etc.) Authentication & access control

12 Action items from meeting Working groups set up: –Authentication (Johnston/Engert) –Instrumentation/measurement (Tierney) –Application requirements (Steve Lau, Dean W) –Testbed definitions (Nitzan, Winkler, Steve Wallace) –Testbed site Host WAN/LAN interconnect (Millsom, DeMar) –Resource management (Foster, Winkler) PI meeting October 4/5 in Washington

13 More information DOE NGI Testbed home page, with link to workshop & lots more – Table for PPDG contacts, applications, connections – PPDG home page: – SLAC PPDG page, links to proposal, WAN monitoring & more: –