Extensions
Extensions are optional enhancements to the SD-WAN solution. The extensions include:
-
Auto-Discovery VPN is used to dynamically build overlay tunnels between devices in an SD-WAN region. The SD-WAN hub is the ADVPN sender that provides branch devices with the necessary details to establish their own tunnels as necessary.
-
Adaptive Forward Error Correction (FEC) is a WAN remediation technique that dynamically corrects packet loss based on the detected packet loss on the link.
-
SD-WAN self-healing with BGP is used to signal the optimal interface to use for traffic destined back to the spoke. Interfaces that do not meet our pre-defined SLA will be marked as out-of-sla to other devices in the SD-WAN network.
-
SaaS remote internet breakout is used when branch traffic needs to route a SaaS application (for example, a VoIP solution) through the HUB.
This section contains the following topics: