Explains the purpose, capabilities, and operational context of dynamic on-demand tunnels, providing foundational knowledge for deployment and management.
A Cisco Catalyst SD-WAN on-demand tunnel is a network feature that:
-
automatically establishes secure tunnels between spoke devices when traffic starts,
-
uses a configurable inactivity timer to remove tunnels after traffic stops, and
-
conserves bandwidth and device performance when inactive.
On-demand tunnels enable efficient, temporary connections that optimize network resource usage.
Cisco Catalyst SD-WAN on-demand tunnels are triggered by device traffic and are removed after a set period of inactivity, ensuring inactive links do not consume bandwidth or affect performance.