DTLNK

DTLNK is a network protocol and interface specification designed for efficient, low-latency data transfer between distributed systems. It defines message framing, multiplexing, flow control, and optional reliability features to support real-time and near-real-time applications across heterogeneous networks.

Conceived in the 2010s, DTLNK was developed to address limitations of traditional transport layers when used for cloud-native services, edge computing, and Internet of Things deployments. The specification emphasizes small message overhead, adaptive congestion handling, and the ability to multiplex multiple logical channels over a single connection.

Architecturally, DTLNK separates session management from transport, allowing implementations to operate over TCP, UDP, QUIC, or other transports. It commonly includes optional encryption and authentication layers compatible with standard TLS mechanisms, plus sequence numbering and selective retransmission to balance reliability and latency.

Implementations of DTLNK are available as open-source libraries and commercial stacks, and the protocol has been adopted in telemetry pipelines, remote procedure call frameworks, and media streaming systems. Tooling typically includes SDKs for common programming languages, connection managers, and performance monitoring utilities.

Criticism of DTLNK centers on fragmentation between competing implementations and the learning curve for teams accustomed to more established transport protocols. Supporters cite improved performance for small-message workloads and flexible deployment options. Ongoing development focuses on interoperability, security hardening, and integration with emerging transport technologies.