The Bidirectional Forwarding Detection (BFD) protocol (RFC 5880) is used to detect loss of connectivity between two forwarding engines,

This document gives an overview of the L-band Digital Aeronautical Communications System (LDACS) architecture, which provides a secure,

This document examines the applicability of using existing GMPLS routing and signaling mechanisms to set up Optical Data Unit-k (ODUk)

Steyr River, Austria (© guenterguni/Getty Images)