The provided debug output indicates that the FortiSwitch is sending FortiLink heartbeats to the FortiGate and is currently waiting to join the stack group. Here's a breakdown of the relevant lines:
Line 1:Shows the date, time, elapsed time since boot, and process ID for the FortiLink event handler.
573s:160ms: 74ustranslates to roughly 573 seconds, 160 milliseconds, and 74 microseconds since uptime.
Event 101:This indicates the FortiSwitch is in a "wait join" state (FL_STATE_WAIT_JOIN). This means it's discovered by the FortiGate and is awaiting further instructions to join the FortiLink stack group.
switchname S424DPTF20000029:This displays the serial number of the FortiSwitch.
flags 0x401:The specific flag meaning might depend on the FortiSwitch model and version, but it likely indicates general communication between the switch and FortiGate.
Lines 2 and onward:These lines show subsequent events with similar timestamps, suggesting a regular heartbeat interval. There are also instances of the FortiSwitch sending packets to the FortiGate (indicated bypkt-sent).
Why the Other Options Are Less Likely:
C. FortiSwitch is discovered and authorized by FortiGate.While discovery might have happened before these lines, the "wait join" state suggests authorization hasn't necessarily completed yet.
D. FortiSwitch is ready to push its new hostname to FortiGate.There's no explicit indication of hostname changes in this excerpt. The focus is on joining the stack group.
In Summary:
The key point is the "FL_STATE_WAIT_JOIN" state, which signifies the FortiSwitch is ready to be fully integrated but is waiting for further commands from the FortiGate to complete the process.