Within ADVPN topologies, shortcut requests and responses traverse spokes and hubs. Fortinet documentation states: 'When a spoke receives a shortcut query from another spoke, it may forward the response to its hub for validation or to facilitate dynamic shortcut tunnel setup. This mechanism allows direct spoke-to-spoke communication for optimized routing and performance, reducing latency and offloading the hub after initial control-plane mediation.' This is a core benefit of ADVPN's dynamic shortcut feature.