Topology Performance: Connectivity Is Not Effective Communication Performance

SourcesSurvey §4 and §6.3; network-analysis foundations retained from the original outline.

4.20.1Physical Link, Logical Reachability, and Communication Path#

4.20.2Degree/Radix, Diameter, Hop Count, and Path Diversity#

4.20.3Endpoint Injection, Switch Capacity, and Link Direction#

4.20.4Bisection Bandwidth, Oversubscription, and Hotspots#

4.20.5Topology Partitioning, Message Size, Concurrent Flows, and Link Asymmetry#

4.20.6Copper Reach, Optical Propagation, and System Synchronization Latency#

4.20.7Aligning Platforms, Bandwidth Units, and Bidirectional Aggregation Conventions#