The Space Communications Protocol Specifications (SCPS) are a set of extensions to existing protocols and new protocols developed by the
Consultative Committee for Space Data Systems (CCSDS) to improve performance of Internet protocols in space environments. The SCPS protocol stack consists of:
SCPS-FP��A set of extensions to FTP to make it more bit efficient and to add advanced features such as record update within a file and integrity checking on file transfers.
SCPS-TP��A set of
TCP
TCP may refer to:
Science and technology
* Transformer coupled plasma
* Tool Center Point, see Robot end effector
Computing
* Transmission Control Protocol, a fundamental Internet standard
* Telephony control protocol, a Bluetooth communication s ...
options and sender-side modifications to improve
TCP
TCP may refer to:
Science and technology
* Transformer coupled plasma
* Tool Center Point, see Robot end effector
Computing
* Transmission Control Protocol, a fundamental Internet standard
* Telephony control protocol, a Bluetooth communication s ...
performance in stressed environments including long delays, high bit error rates, and significant asymmetries. The SCPS-TP options are TCP options registered with the
Internet Assigned Numbers Authority (IANA) and hence SCPS-TP is compatible with other well-behaved
TCP
TCP may refer to:
Science and technology
* Transformer coupled plasma
* Tool Center Point, see Robot end effector
Computing
* Transmission Control Protocol, a fundamental Internet standard
* Telephony control protocol, a Bluetooth communication s ...
implementations.
SCPS-SP��A security protocol comparable to
IPsec
SCPS-NP��A bit-efficient network protocol analogous to but not interoperable with
IP
The SCPS protocol that has seen the most use commercially is SCPS-TP, usually deployed as a
Performance Enhancing Proxy
Performance-enhancing proxies (PEPs) are network agents designed to improve the end-to-end performance of some communication protocols. PEP standards are defined in RFC 3135 (PEPs intended to mitigate link-related degradations) and RFC 3449 (TCP pe ...
(PEP) to improve TCP performance over satellite links.
External links
www.scps.orgis a web page devoted to the SCPS protocols and contains links to the protocol specifications, briefing material, and test results. ({{webarchive , url=https://web.archive.org/web/*/http://www.scps.org/ , date=* , title=SCPS )
* Th
Open Channel Foundationdistributes a free reference implementation of the SCPS protocols that includes a transport-layer PEP application.
CCSDS.orgis the main web page for the CCSDS.
Space standards
Networking standards
Consultative Committee for Space Data Systems
Internet protocols