Key Points Basic data unit in Ethernet Includes addressing and integrity information Used for local network delivery Works with switches and NICs Packages data so local devices and switches can deliver it within a broadcast domain Definition Ethernet Frame is…
Key Points Default Route Propagation is a defined network term or function Distribution of a default route for fallback forwarding across a routing domain Used across network and system contexts Simplifies forwarding when detailed destination routes are not available Reduces…
Key Points Combines antenna gain and noise temperature into a single performance metric Used in earth station and satellite link analysis Higher values indicate better receive performance Critical for link budget calculations and receiver design Determines receive-side sensitivity and link…
Key Points Feedback Control is defined for network or system use Control method based on measured output and corrective action Used in operational and control contexts Foundation of most closed-loop regulators Definition Feedback Control is a control approach that uses…
Key Points Session Persistence maintains session state across requests or time Used in web services, load balancing, stateful applications, and network services Ensures continuity when traffic is distributed across multiple endpoints Constraints include session storage, timeout behavior, failover design, and…
Key Points Supports movement across cells or coverage zones Used in mobile and satellite systems Requires handover or roaming support Maintains session or service continuity Essential for mobile networks, satellite services, connected vehicles, maritime systems, and field operations Definition Mobility…
Key Points Brings cloud resources nearer to endpoints Supports low-latency and local processing Used with distributed and latency-sensitive applications Often paired with connectivity and Edge Compute services Reduces round-trip delay and supports local processing where centralized cloud access is insufficient…
Key Points Routers exchange route metrics with neighbors Uses iterative updates to build routing knowledge Simple to implement but sensitive to convergence issues Common in classic routed networks Depends on neighbor-based metric exchange and iterative convergence Susceptible to routing loops…
Key Points Used at the data-link layer for local network interface identification Identifies network interfaces on Ethernet, Wi-Fi, and similar networks Critical for switching and local frame delivery before IP-layer routing Subject to spoofing, duplication, and vendor assignment conventions Local…
Key Points Protects command messages in transit Supports authenticated control operations Important for spacecraft and remote assets Combines authentication, encryption, and access control Definition Secure Telecommand Channel is a protected command path that ensures telecommand messages are authenticated, controlled, and…
