Lynuxworks TCP/IP stack is DO-178B Level A certified

LynuxWorks Inc. has introduced the Lynx Certifiable Stack (LCS), the industry's first DO-178B Level A-certified standalone TCP/IP stack for safety- and security-critical environments.

The LCS allows developers of safety critical devices to use a commercial off-the-shelf stack that is certifiable to Level A, instead of spending time and money on developing their own Level A-certified TCP/IP stack.

"The fully deterministic nature of this stack makes it revolutionary to developers of any safety and security critical device that requires TCP/IP networking connectivity with verifiable design assurance yielding absolute product integrity," said Dr. Inder Singh, CEO of LynuxWorks.

The LCS is designed for deterministically safe operation and runs on a standalone processor that isolates the sporadic nature of TCP/IP processing from impacting other safety-critical processing on the host system. It is claimed to offer reliable delivery for all data packets, a feature previously unheard of with the typically "best effort"-style delivery of TCP/IP, the company said.

The QoS capabilities of the LCS are standards-based and enable effective flow control of data and deterministic operation. Rate limits are set on a per socket basis and enforced by the stack transparently to the communicating applications.

For systems where a total system solution is needed, the LCS also includes an applications interface layer, which fully integrates it with LynuxWorks' LynxOS-178B DO-178B Level A certifiable UNIX/POSIX-compatible RTOS.

Stack operation monitoring is available via the internal SNMP agent and includes Management Information Bases, which define the standards-based parameters of interest with networking statistics. Additionally, LCS supports the TCP, UDP, IP, ICMP protocols, and other networking capabilities like multicast and broadcast packets.