What NSE6_FSW-7.2 Questions and Answers feature?

Fortinet FortiLink Protocol:The FortiLink protocol is Fortinet's proprietary mechanism for managing FortiSwitch units from a FortiGate firewall. It simplifies configuration and security policy enforcement across the connected network devices.

Auto-Discovery:FortiLink's auto-discovery feature means that by default, all ports on a FortiSwitch will actively send out discovery frames. This allows them to locate a FortiGate device that has a FortiLink interface enabled, streamlining the device management process.

No Configuration Needed:You don't have to manually configure individual ports for FortiLink discovery on FortiSwitch devices.

References

FortiSwitchOS FortiLink Guide (FortiSwitch Devices Managed by FortiOS 7.2):Refer to pages 13 and 14 for details on zero-touch management and FortiLink configuration. [https://fortinetweb.s3.amazonaws.com/docs.fortinet.com/v2/attachments/27f63c72-b083-11ec-9fd1-fa163e15d75b/FortiSwitchOS-7.2.0-FortiLink_Guide%E2%80%94FortiSwitch_Devices_Managed_by_FortiOS_7.2.pdf ]

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.

Page 452 of 7.2 study guide, specifically states "Although you can use the sniffer command to capture traffic on switch ports, the types of packets capture by the sniffer are very limited.

The use of the sniffer command on FortiSwitch CLI can be unreliable on port 23 for specific reasons related to the nature of traffic on the port:

D.The switch port might be used as a trunk member.When a switch port is configured as a trunk, it can carry traffic for multiple VLANs. If the sniffer is set up without specifying VLAN tags or a range of VLANs to capture, it may not accurately capture or display all the VLAN traffic due to the volume and variety of VLAN-tagged packets passing through the trunk port. This limitation makes using the sniffer on a trunk port unreliable for capturing specific VLAN traffic unless properly configured to handle tagged traffic.

References:

For guidelines on how to properly use sniffer commands on trunk ports and configure VLAN filtering, consult the FortiSwitch CLI reference available through Fortinet support channels, including theFortinet Knowledge Base.