Key Points Prevents routing loops by blocking route advertisement back to source Used in distance-vector routing protocols Reduces unstable routing behavior and convergence issues One of the classic loop-prevention mechanisms in routing design Operates at the interface level by preventing…
Key Points Sits between access and core network layers Carries aggregated traffic over transport links Important in broadband and telecom design Often uses fiber or microwave transport Critical intermediary for moving traffic from distributed access points to central infrastructure Definition…
Key Points Improves link robustness against interference and jamming Often paired with coding, hopping, or power control Used in satcom, Government & Defence communications, and protected links Trades spectral efficiency for resilience and survivability Requires careful balance between protection and…
Key Points Operates in low Earth orbit Commonly deployed as part of a constellation Supports lower latency than higher orbit systems Requires continuous handoff and tracking due to orbital movement Used in communications, observation, and distributed space architectures Definition A…
Key Points Service Degradation represents reduced service performance without full outage Defined for network and system contexts Used in operational and architecture monitoring Distinguishes partial impairment from complete service failure Definition Service Degradation is a reduction in the performance, quality,…
Key Points Designed for rapid failure recovery Uses preplanned alternate paths or local repair mechanisms Common in carrier and IP backbones Reduces disruption during link or node failures Enables sub-second or near-instant protection against failures Relies on precomputed protection paths…
Key Points Uses Ethernet as the base communication technology Adds industrial timing, topology, or resilience requirements Supports plant-floor and machine-level networking Interoperates with automation and control systems Provides standardized communication across machines, controllers, sensors, and supervisory systems while preserving Ethernet…
Key Points Mixes multiple network types or models Used in enterprise and telecom environments Can combine public and private resources Requires integration and policy management Blends connectivity across different network boundaries Definition Hybrid Network is a network architecture that combines…
Key Points Defines a planned orbital position for satellite or spacecraft Used in geostationary and coordinated orbit management Important for spectrum and service coordination Supports predictable service placement and interference avoidance Requires ongoing station keeping to maintain position Definition Orbital…
Key Points Provides coarse attitude reference using solar direction as a reference source Common in spacecraft safe mode and control operations Simpler and lower-power than precision attitude sensors like star trackers Constraints include eclipse periods, Sun visibility, sensor saturation, and…
