Fortinet NSE7_SSE_AD-25 Exam - Topic 2 Question 9 Discussion

In FortiSASE Secure Private Access (SPA) deployments, establishing a stable connection between the FortiSASE PoPs and the corporate FortiGate hub relies on two primary layers: the IPsec Tunnel and the BGP Peering.

Exhibit Analysis: The exhibit (image_577e17.jpg) shows the status of several Security PoPs (Singapore, Tokyo, Frankfurt, and San Jose) connected to an 'FGT-Hub'.

Tunnel Status vs. BGP Status: For all listed PoPs, the Health Check IP Status and Tunnel status are both shown with a green 'Up' icon. This confirms that the underlying IPsec connectivity and the physical path between the SASE cloud and the hub are functioning correctly.

Identifying the Failure: The BGP Peering State is reported as Active. In BGP terminology, the 'Active' state specifically indicates that the router is attempting to initiate a TCP connection with its peer but has not yet received a response. A fully functional and successful BGP connection must reach the Established state.

Root Cause Determination: Since the tunnel is up (eliminating Gateway or Authentication Method issues as the primary suspects) but the BGP state remains stuck in 'Active,' the most likely cause is a mismatch or misconfiguration in the BGP Peer IP or BGP neighbor settings. This prevents the exchange of routing information necessary for users to access private applications.

To resolve the connectivity problem, the administrator must ensure that the BGP neighbor IPs configured on the FortiGate hub match those assigned by the FortiSASE orchestration and that firewall policies on the hub allow BGP traffic (TCP port 179) across the tunnel.