A Few Examples From Everyday Life

iBGP/BGP Topologies
Amplification 
Multiplication of messages through a mesh

Link-state routing protocols 
Amplification 
Cascading failures in the face of congestion/hello timeouts
Horizontal Coupling 
Network congestion to routing stability

Operations and Managment (OAM) Mapping
Vertical Coupling

Pseudo-wire Alarm Aggregation
Amplification/Vertical Coupling