What could be a reason for ping failures when configuring FortiSASE as a spoke to a FortiGate hub?

When configuring FortiSASE as a spoke to a FortiGate hub, the possibility of ping failures can often be traced back to routing issues. In particular, if the BGP (Border Gateway Protocol) route is not received by the spoke (FortiSASE), this can lead to a lack of connectivity between the two devices. BGP plays a crucial role in determining how packets are transmitted across a network by managing how routing information is shared.

If the BGP route is not received, it means that the spoke device does not have the correct routing information to reach the FortiGate hub. Without this information, the spoke cannot send or receive traffic to or from the hub, which would result in ping failures and an inability to establish communications.

High latency in the network, while it can impact the overall quality of the connection, would not necessarily cause a failure in ping; instead, it may result in delayed responses. Similarly, a powered-off FortiGate hub would likely result in a more definitive failure, but it is not a nuanced issue like the BGP routing scenario. Incorrect firewall configurations can certainly lead to blocked traffic as well, but the absence of the BGP route prevents any traffic from being routed at all, making it a