# Presentation: 681799

## ACTSExperiment 118xWhere WDM, SONET, ATM, TCP/IP, and satellite technology come together

- ACTSExperiment 118x*Where WDM, SONET, ATM, TCP/IP, and satellite technology come together*

- Advanced Communications Technology Satellite
- NASA Lewis Research Center
- Cleveland, Ohio

- David R. Beering
- Infinite Global Infastructures, LLC
- On contract to Sterling Software
- 630-665-1396
- drbeering@sprynet.com

## What is 118x?

- 118x is the latest in a series of “118” experiments, designed to study the optimization of TCP/IP and ATM protocols over geostationary distances across multiple operating environments using NASA’s Advanced Communications Technology Satellite (ACTS)
- Experiment 118j ran from August to November, 1997 using and focused on Sun’s Solaris 2.6 TCP/IP implementation
- Experiment 118x operates during May-September, 1998
- The satellite link operates at 622 Mbps (OC-12c) between Livermore, CA and Cleveland, OH

## 118x Experiment Goal

- To develop a recognized, interoperable, high-performance TCP/IP implementation across multiple computing / operating platforms working in partnership with the computer industry
- To work with the satellite industry to answer outstanding questions regarding the use of standards (TCP/IP and ATM) for the delivery of advanced data services, and for use in spacecraft architectures

## 118x Experiment ParticipantsGovernment Laboratories

- NASA Lewis Research Center
- NASA Johnson Space Center (SOMO)
- NASA Jet Propulsion Laboratory
- Lawrence Livermore National Laboratory *National Transparent Optical Networking Consortium Lead*
- Naval Research Laboratory

## 118x Experiment ParticipantsCommunications Industry

- Ampex Data Systems (DIS-160 Tape Systems)
- Cisco Systems (LS-1010 ATM Switches)
- FORE Systems (ASX-1000 ATM Switches)
- Sprint (Laboratory space, terrestrial network)

## 118x Experiment ParticipantsComputer Industry

- Sun Microsystems (Solaris 2.7, Ultra workstations)
- Microsoft (NT 4.0, NT 5.0)
- Digital Equipment (DEC Unix 4.3, DEC Alphas)
- Pittsburgh Supercomputing Center (Integration)
- Intel (Pentium II Development Systems)
- FTP Software (Win95 and Win98 support)

## 118x Experiment ParticipantsSatellite Industry

- Hughes Space & Communications
- Lockheed Martin Corporation
- Space Systems / LORAL
- Spectrum Astro

## Introducing NASA’s Advanced Communications Technology SatelliteThe world’s best satellite system simulator!

## Communications Satellite Model

- Balanced Link
- High
- Data Rates
**155/622 Mbps**
**Any aggregate rate**

- Remote

- Hub or
- Remote
- (Hubless)

- ACTS

- Ka-Band

## Relay Satellite Model

- Return Link
- Very High
- Data Rates
**1 to 622 Mbps**

- Forward Link
- Low to Moderate
- Data Rates
**1 to 20 Mbps**

- Remote

- Hub

- ACTS

- Ka-Band

## Digital Broadcast Satellite (DBS) Model

- Satellite
- Return Link
**1 to 622 Mbps**

- Remote

- Hub

- ACTS

- Ka-Band

- Terrestrial
- Forward Links
**1 to 20 Mbps**
- Using NREN

## 118x End-to-end Network Layout

- NASA
- Advanced Communications
- Technology Satellite

- ATM
- Switch

- SUN
- Solaris

- OC-12
- SONET

- 622
- ATM
- MM

- ATM
- Switch

- SUN
- Solaris

- 622
- ATM
- SM

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DIS160

- 622 Mbps
- Link

- Sprint Advanced
- Technology Laboratory

- NASA
- Lewis Research Center
- Cleveland, Ohio

- DEC
- Unix

- Microsoft
- NT

- BSD
- Ref

- DEC
- Unix

- Microsoft
- NT

- BSD
- Ref

**N**
**T**
**O**
**N**

- OC-12
- SONET

- Lawrence Livermore
- National Laboratory

- Ampex
- DIS160

- FWD/SCSI

## High-Speed Magnetic Tape Test

- NASA
- Advanced Communications
- Technology Satellite

- ATM
- Switch

- SUN
- Ultra 2

- 622
- ATM
- SM

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DIS160

- ATM
- Switch

- SUN
- Ultra 2

- 622
- ATM
- SM

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DIS120

- 622 Mbps
- Link

- Sprint
- Advanced Technology Lab
- Burlingame, CA

- NASA
- Lewis Research Center
- Cleveland, Ohio

## End-to-end Demonstration Layout at SC97

- NASA
- Advanced Communications
- Technology Satellite

- FORE
- ASX
- 1000

- SUN
- Ultra 2

- OC-12
- SONET

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DST812
- w/
- Four
- Drives

- FORE
- ASX
- 1000

- SUN
- Ultra 2

- 622
- ATM
- SM

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DIS120

- 622 Mbps
- Link

- San Jose
- Convention Center

- NASA
- Lewis Research Center
- Cleveland, Ohio

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- SUN
- Ultra 2

- SUN
- Ultra 2

- FWD/SCSI

- FWD/SCSI

- FWD/SCSI

**N**
**T**
**O**
**N**

- OC-12
- SONET

- Lawrence Livermore
- National Laboratory

## 520 Mbps

- End-to-end Demonstration Layout at SC97

- NASA
- Advanced Communications
- Technology Satellite

- FORE
- ASX
- 1000

- SUN
- Ultra 2

- OC-12
- SONET

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DST812
- w/
- Four
- Drives

- FORE
- ASX
- 1000

- SUN
- Ultra 2

- 622
- ATM
- SM

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DIS120

- 622 Mbps
- Link

- San Jose
- Convention Center

- NASA
- Lewis Research Center
- Cleveland, Ohio

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- SUN
- Ultra 2

- SUN
- Ultra 2

- FWD/SCSI

- FWD/SCSI

- FWD/SCSI

**N**
**T**
**O**
**N**

- OC-12
- SONET

- Lawrence Livermore
- National Laboratory

**520 Mbps**
**Single Stream**

## 360 Mbps

- End-to-end Demonstration Layout at SC97

- NASA
- Advanced Communications
- Technology Satellite

- FORE
- ASX
- 1000

- SUN
- Ultra 2

- OC-12
- SONET

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DST812
- w/
- Four
- Drives

- Secant
- CellCase

- 155
- ATM
- MM

- NSC
- Atlas

- 155
- ATM
- MM

- FORE
- ASX
- 1000

- SUN
- Ultra 2

- 622
- ATM
- SM

- 622
- ATM
- MM

- FWD/SCSI

- Ampex
- DIS120

- Secant
- CellCase

- 155
- ATM
- MM

- NSC
- Atlas

- 155
- ATM
- MM

- 622 Mbps
- Link

- San Jose
- Convention Center

- NASA
- Lewis Research Center
- Cleveland, Ohio

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- FWD/SCSI

- Ampex
- DIS120

- SUN
- Ultra 2

- SUN
- Ultra 2

- SUN
- Ultra 2

- FWD/SCSI

- FWD/SCSI

- FWD/SCSI

**N**
**T**
**O**
**N**

- OC-12
- SONET

- Lawrence Livermore
- National Laboratory

**360 Mbps**
**Aggregate**

## 118x Double-Hop End-to-end Network Layout

- NASA
- Advanced Communications
- Technology Satellite

- ATM
- Switch

- OC-12
- SONET

- 155/622
- ATM
- MM

- ATM
- Switch

- 622
- ATM
- SM

- 622 Mbps
- Link

- Sprint Advanced
- Technology Laboratory

- NASA
- Lewis Research Center
- Cleveland, Ohio

- Microsoft
- NT

**N**
**T**
**O**
**N**

- OC-12
- SONET

- Lawrence Livermore
- National Laboratory

- PHYSICAL
- LOOPBACK

- Two devices at NASA LeRC
- communicate with each other through
- a physical loopback at the far end. This
- has the effect of doubling the roundtrip
- delay between them

- SUN
- Solaris

## 536 ms

- 118x Double-Hop End-to-end Network Layout

- NASA
- Advanced Communications
- Technology Satellite

- ATM
- Switch

- OC-12
- SONET

- 155/622
- ATM
- MM

- ATM
- Switch

- 622
- ATM
- SM

- 622 Mbps
- Link

- Sprint Advanced
- Technology Laboratory

- NASA
- Lewis Research Center
- Cleveland, Ohio

- Microsoft
- NT

**N**
**T**
**O**
**N**

- OC-12
- SONET

- Lawrence Livermore
- National Laboratory

- PHYSICAL
- LOOPBACK

- Two devices at NASA LeRC
- communicate with each other through
- the physical loopback at Sprint. This
- has the effect of doubling the roundtrip
- delay between them

- SUN
- Solaris

**536 ms**

## 536 ms + 536 ms = 1072 ms

- 118x Double-Hop End-to-end Network Layout

- NASA
- Advanced Communications
- Technology Satellite

- ATM
- Switch

- OC-12
- SONET

- 155/622
- ATM
- MM

- ATM
- Switch

- 622
- ATM
- SM

- 622 Mbps
- Link

- Sprint Advanced
- Technology Laboratory

- NASA
- Lewis Research Center
- Cleveland, Ohio

- Microsoft
- NT

**N**
**T**
**O**
**N**

- OC-12
- SONET

- Lawrence Livermore
- National Laboratory

- PHYSICAL
- LOOPBACK

- Two devices at NASA LeRC
- communicate with each other through
- the physical loopback at Sprint. This
- has the effect of doubling the roundtrip
- delay between them

- SUN
- Solaris

**536 ms ****+**** ****536 ms**** ****=**** ****1072 ms**

## 118x Plans

- Complete first phase workplan by end of September, 1998
- Demonstrate - demonstrate - demonstrate
- Leverage relationships and technology base to further the state-of-the-art in high-speed satellite applications using standard protocols
- Apply the technology to NASA’s unique data handling problems using TDRSS
- Leverage the architecture for space commercialization

## Industry Challenges

- Incorporate error-recovery techniques (like those found in SCPS) into TCP/IP
- Demonstrate these capabilities to broader audiences
- Implement the technology to lower the cost of building and delivering advanced applications