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The CCSDS Collaborative Work Environment (CWE) > Space Internetworking Services Area (SIS)

SIS Area

OVERVIEW - SPACE INTERNETWORKING SERVICES AREA (SIS)

Welcome to the Space Internetworking Services (SIS) Collaborative Work Environment.

The objective of the Space Internetworking Services (SIS) Area is to address the communications services and protocols supporting end-to-end communications among applications, particularly where those communications may span multiple heterogeneous physical and data link technologies. Areas addressed by SIS include the networking infrastructure to support application-to-application communication onboard a single spacecraft, communications among multiple spacecraft, and communications between space-based applications and their counterparts on Earth and/or other planetary bodies.
The SIS Area deals with communication services and protocols that are independent of specific link technology (as a lower layer bound) and independent of application-specific semantics (as an upper bound). Thus the SIS area covers essentially the network through application layers of the OSI reference model.

SIS protocols use the underlying communication and infrastructure services provided by the Space Link Services (SLS) and Spacecraft Onboard Interface Services (SOIS) areas and any other onboard networks, and provide the networked connectivity needed by applications developed in other CCSDS areas such as Mission Operations and Information Management Services (MOIMS) and Spacecraft Onboard Interface Services (SOIS). The SIS services provide hardware-independent mechanisms for identifying end systems, and provide communications services that allow users to disregard whether the communication is over a single data link layer or over multiple hops. The suite of capabilities developed by the SIS Area accommodates all ranges of delay, interactivity, and directionality, although not all protocols are appropriate for all environments.

The services provided by SIS protocols free applications from having to have intimate knowledge of the underlying communications protocols and mechanisms, and from having to know the physical location(s) of the entities with which they are communicating. This enables applications to focus on the application-specific protocols and interactions necessary to achieve their goals.

PUBLICATIONS

SIS Area Approved Publications can be accessed by clicking here.  All CCSDS Approved Publications can be accessed by clicking here.

POINTS OF CONTACT

Keith ScottArea Director: Keith Scott
MITRE Corporation
M/S H400
7515 Colshire Drive
McLean, VA 22102
USA  
   
Telephone:
+1.703.983.6547
E-mail:
 kscott@mitre.org 

Bio: Click Here

Tomaso de ColaDeputy Area Director: Tomaso de Cola
DLR/German Aerospace Center
Institute of Communications and Navigation
Satellite Networks
Münchner Straße 20
82234 Oberpfaffenhofen-Wessling

     
Telephone: +49 8153 28-2156
Fax: +49 8153 28-2844
E-mail: 
tomaso.decola@dlr.de

Bio: Click Here

MAILING LIST

sis@mailman.ccsds.org
Click here to join mail list

Click here to view archives

SIS-MIA

OVERVIEW - MOTION IMAGERY AND APPLICATIONS WORKING GROUP (SIS-MIA)

Welcome to the Motion Imagery and Applications Working Group Collaborative Work Environment.  Motion Imagery and Applications Working Group (SIS-MIA) falls under the Space Internetworking Services (SIS) Areas of the CCSDS.

Human & robotic spaceflight endeavors are expected to be collaborations between many agencies, with complex interactions between spacecraft, with intermediate locations (EVA crew, habitats, etc.) requiring the ability to view video generated by another agency’s systems. Therefore interoperability between these systems will be essential to mission success and in some cases crew safety. Such interoperability will only be achieved by use of common references and joint agreement on international standards, either commercial or CCSDS or a combination of the two. The Motion Imagery & Applications Working Group will address interoperability issues including packetization of compressed and uncompressed data streams and files, metadata, embedded audio, command & control methodologies, compression standards, distribution formats, common references and quality standards.

POINTS OF CONTACT

Rodney Grubbs
Chair: Rodney Grubbs
NASA/Marshal Space Flight Center
Mail Code EO50
Marshall Space Flight Center, AL 35812

Telephone: +1 256 544-4582
E-mail:
rodney.grubbs@nasa.gov


Osvaldo Peinado Deputy Chair: Osvaldo Peinado
DLR/German Aerospace Center
Oberpfaffenhofen 82234
Wessling Germany

Telephone: +49 8153 28 3010
Fax: +49 8153 28 1456

E-mail: osvaldo.peinado@dlr.de  
MAILING LIST

sis-mcp@mailman.ccsds.org
Click here to join mail list

Click here to view archives

CHARTER

Click Here

SIS-DTN

OVERVIEW - DELAY TOLERANT NETWORKING WORKING GROUP (SIS-DTN)

Welcome to the Delay Tolerant Networking Working Group Collaborative Work Environment.  Delay Tolerant Networking Working Group (SIS-DTN) falls under the Space Internetworking Services (SIS) Areas of the CCSDS.

The Delay Tolerant Networking Working Group is specifying the protocols needed to implement the Solar System Internetwork (SSI) concept. These protocols support the portion of the SIS communication domain where large delays, intermittent connectivity, and/or unidirectional communications links may be present.

The main internetworking protocol in the Solar System Internet is the Bundle Protocol (BP). BP is a message-oriented store-and-forward communication protocol with optional reliability that is suitable for use when contemporaneous end-to-end connectivity cannot be guaranteed. BP routers may store data (bundles) before forwarding them, possibly for long periods of time. This allows routers to forward data even if the outbound communication link is not available when the data arrives. The Bundle Protocol and all the supporting protocols in the SSI suite are designed for these conditions. This is in contrast to many of the protocols in the Internet Protocol (IP) suite that at least implicitly assume low delays and end-to-end connectivity. The working group is specifying a profile of the Bundle Protocol as specified in Internet RFC5050 for use by CCSDS.

BP has been demonstrated in a number of experiments both on the ground and with spacecraft, including the Deep-Space Networking Experiment (DINET), the Earth-Observing Mission-1 (EO-1) spacecraft, and various single- and multi-agency experiments on the International Space Station (ISS).

In addition to the Bundle Protocol, the working group is specifying a profile of the Licklider Transmission Protocol (LTP, RFC5326) for use in CCSDS missions, as well as network management and security protocols.

The group works with and leverages work done in the terrestrial DTN community, including the Internet Research Task Force’s DTN Research Group (http://www.dtnrg.org).

POINTS OF CONTACT

Keith ScottChair: Keith Scott
MITRE Corporation
M/S H400
7515 Colshire Drive
McLean, VA 22102
USA  
   
Telephone:
+1.703.983.6547
E-mail: kscott@mitre.org


No PhotoDeputy Chair: Kiyohisa Suzuki
JAXA
2-1-1 Sengen, Tsukuba,
Ibaraki, Japan
   
Telephone:
E-mail: suzuki.kiyohisa@jaxa.jp

MAILING LIST

sis-dtn@mailman.ccsds.org
Click here to join mail list

Click here to view archives

CHARTER

Click Here

SIS-VOICE

OVERVIEW - VOICE WORKING GROUP (SIS-VOICE)

Welcome to the Voice Working Group Collaborative Work Environment.  The Voice Working Group (SIS-VOICE) falls under the Space Internetworking Services (SIS) Areas of the CCSDS.

POINTS OF CONTACT

Osvaldo Peinado Chair: Osvaldo Peinado
DLR/German Aerospace Center
Oberpfaffenhofen 82234
Wessling Germany

Telephone: +49 8153 28 3010
Fax: +49 8153 28 1456

E-mail: osvaldo.peinado@dlr.de  



Tom RichDeputy Chair: Ivan Antonov
FRSA/Russian Federal Space Agency
TsNIImash (Mission Control Centre)
Deputy IT-Division Chief

E-mail: aid@mcc.rsa.ru

MAILING LIST

sis-voice@mailman.ccsds.org
Click here to join mail list

Click here to view archives

CHARTER

Click Here

SIS-CFDPV1

OVERVIEW - CCSDS FILE DELIVERY PROTOCOL REVISIONS WORKING GROUP (SIS-CFDP-ENCAP)

Welcome to the CCSDS File Delivery Protocol Revisions Working Group Collaborative Work Environment. The CCSDS File Delivery Protocol Revisions Working Group (SIS-CFDPV1) falls under the Space Internetworking Services (SIS) Areas of the CCSDS.

The objective of the WG is to introduce revisions to the CCSDS File Delivery Protocol (CFDP) that will enhance the protocol’s suitability for deployment in upcoming space flight missions. Among the proposed revisions are an increase in the limit on the size of file that may be transmitted, a mechanism for attaching metadata to each file data segment individually, and improved support for record structures in transmitted files.

POINTS OF CONTACT

Scott Burleigh
Chair: Scott Burleigh
4800 Oak Grove Drive
M/S 179-206
Pasadena, CA 91109-8099


Telephone: +1 818-393-3353
E-mail:
scott.c.burleigh@jpl.nasa.gov


Dai StantonDeputy Chair: Dai Stanton
Keltik
5 Sherwood Road
Hampton Hill
TW12 1DF
United Kingdom 
     
Telephone: +44 208 979 0234
FAX: +44 208 979 0234
E-mail: 
dstanton@keltik.co.uk

MAILING LIST

sis-cfdpv1@mailman.ccsds.org
Click here to join mail list

Click here to view archives

CHARTER

Click Here



Space Internetworking Services Area (SIS)

AD: Keith Scott
Voice Working Group (SIS-VOICE)
Chair: Osvaldo Peinado