Effnet was founded in Luleå, Sweden, in 1997 by scientists of the Luleå University of Technology with a goal to develop and commercialize new technologies for improving the performance of IP based networks.
The scale and rapid growth of Internet has speeded up adoption of IP-based networking over various communication links including wireless and wired. This is enabling users to access the same applications they use over Internet, any time anywhere. It is essential to reduce the overhead of IP protocol family including UDP, TCP, RTP etc. in order to use the scarce resource, spectrum and bandwidth, efficiently. Effnet Header Compression product family saves bandwidth and improves quality of service and experience of applications.
Through continued research and development efforts, Effnet has gained a unique expertise in IP header compression and its team has actively contributed to the standardization process. Effnet Header Compression product family based on advanced header compression algorithms was introduced during 2001. Since then it is growing in number of products and features as well as improving in quality and efficiency.
SE-972 34 Luleå
Telephone: +46 (0)920 60918
Fax: +46 (0)8 551 105 67
IP Header Compression:
- Effnet IPHC™: The IETF standard for IP Header Compression (RFC 2507) supports compression of multiple IP headers including IPv4 and IPv6, UDP and TCP headers on a per hop basis. This header compression scheme compresses the UDP and TCP headers typically down to 2 to 5 bytes (without UDP or TCP checksum). It is designed to work well over low and medium bandwidth links with non-trivial packet loss. This includes links such as dial-up and wireless. The IPHC scheme is being widely accepted by standardization bodies such as 3GPP and 3GPP2. 3GPP has recommended the use of IPHC in 2.5G (GPRS) and 3G (UMTS) networks since Release 99 version of the specifications and according to 3GPP2 standards, in CDMA2000 1xEV-DV (Release B and onwards) system. It is also being adopted by satellite modem manufacturers to attain better performance over satellite links.
- Effnet CRTP™: The IETF standard for Compressed RTP (RFC 2508) supports compression of RTP/UDP/IP (both IPv4 and IPv6) headers on a per hop basis. This header compression scheme compresses the RTP headers typically down to 2 to 4 bytes. It is designed to work well over low bandwidth links such as dial-up modems.
- Effnet E-CRTP™
Robust Header Compression:
- Effnet ROHC™: Effnet provides a highly portable, efficient and fully compliant software implementation of RObust Header Compression (ROHC) technology which is based on IETF standard RFC 3095 published in 2001. It is has been designed and standardized to address the need for high compression efficiency even in the presence of high bit error rates and long round trip times typically observed in wireless networks e.g. cellular and satellite.
- Effnet ROHC-IP™: Effnet ROHC-IP™ is used together with Effnet ROHC™ to add support for compression of IP packets.
- Effnet ROHC-TCP™: Effnet ROHC-TCP™ provides significant link efficiency improvements for TCP traffic e.g web, email etc and particularly for TCP acknowledgement packets. It is robust and maintains high compression efficiency even in presence of high BER, long RTT, packet loss and pre- and on-link reordering.
Header Compression Simulator:
- Effnet HC-Sim™: The Effnet Header Compression Simulator is a product designed for simulating certain traffic and link conditions for testing various IP header compression algorithms like IPHC, CRTP, ROHC etc.