Technical Tip: Spanning tree in LAG and MCLAG

sachitdas_FTNT · 01-01-2026

Description This article describes the TACACS attributes that need to be configured on a TACACS server to override accprofile. Scope FortiSwitch 7.4.x and above. Solution In some deployments, it is required to allow remote administrators to log in to...

sachitdas_FTNT · 12-05-2025

Description This article describes the configuration changes to be performed if the FortiSwitch is not load-balancing the outgoing traffic via the LACP links. Scope FortiSwitch versions 7.4.x and above. Solution Consider a setup where FortiSwitch is ...

sachitdas_FTNT · 09-04-2025

Description This article describes the reason for 'FortiLink Switch new peer detected' logs on FortiGate Switch-Controller Event logs. Scope FortiGate versions 7.4.8, 7.6.3, Managed FortiSwitch v7.6.2/v7.4.7. Solution Functionality Impact and Symptom...

sachitdas_FTNT · 07-28-2025

Description This article describes how to configure loop guard, BPDU guard, and root guard on multiple managed FortiSwitches, multiple ports from the FortiGate GUI. Scope Managed FortiSwitches, FortiGate, v7.4.x and above. Solution Refer to the link ...

sachitdas_FTNT · 07-24-2025

Description This article describes the reason for the 'ED' flag on the MCLAG-ICL interface when MCLAG-ICL peers' FortiSwitches are root Bridges. Scope FortiSwitch version 7.x and above. Solution In a multi-tier MC-LAG ICL topology, where Tier-1 Forti...

sachitdas_FTNT · 11-24-2025

Adding to pont4, map dot1p, dscp and COS. config switch interface edit set trust-dot1p-map set trust-ip-dscp-map set qos-policy < policy-name > set default-cos next end

sachitdas_FTNT · 04-08-2025

Hi Kurt, I am assuming that you have given IP of 10.100.99.2 to the FortiSwitch's internal interface and not the SVI. In that case, when we connect 10.100.99.2 to FGT X2 interface 10.100.99.1, the traffic will flow as untagged vlan. Usually this shou...

sachitdas_FTNT · 02-18-2025

Hi Björnar, Currently we don't have the option to prioritize one link over another and configure a fallback scenario.

sachitdas_FTNT · 02-16-2025

Thats correct, p2p is not possible in this design. p2p means FGT-FSW-cisco-FSW.https://docs.fortinet.com/document/fortiswitch/7.6.1/fortilink-guide/801183/fortilink-over-a-point-to-point-layer-2-network Fortilink over layer3 is the correct approach.

sachitdas_FTNT · 02-16-2025

I tested in FSW version 7.4.4 against FortiGuest and it works fine. Have you tried configuring from FSW CLI? It could be a GUI issue where 'remote' option shows greyed out. Try upgrading FSW to the latest 7.4.6. my config FYI:- config system adminedi...

User Statistics

User Activity

Technical Tip: Remote administrators with TACACS+ VSA attributes support on FortiSwitch

Troubleshooting Tip: FortiSwitch is not load balancing the outgoing traffic via the LACP links

Troubleshooting Tip: FortiLink Switch new peer detected logs on FortiGate Switch-Controller Event logs

Technical Tip: Configuring loop guard, BPDU guard, root guard on managed FortiSwitches from FortiGate GUI

Technical Tip: ED flag on ICL interface

Re: Understanding Quality of Service (QoS) in Networks – From Ethernet to FortiSwitch

Re: Connect FortiSwitch 1048E to Fortigate 500E

Re: FG-90G to FS-424E-Fiber Uplink 10G+1G

Re: Fortilink 3rd Party Switch L2

Re: Fortiswitch with Radius for admin

Technical Tip: Spanning tree in LAG and MCLAG

Troubleshooting Tip: Multicast traffic causing hig...

Technical Tip: Managed FortiSwitch Capwap discover...

Troubleshooting Tip: MCLAG-ICL interface in STP di...

Technical Tip: Standalone FortiSwitch password and...

Re: Multi-tier ICL-MCLAG configuration

Re: Fortiswitch fs-148e-poe SFP or SFP+ Ports?

Re: Fortilink across L3 (FG-FSW only)

Re: Question: two Vdom vlans to the same port ( na...

Re: Fortiswitch ports not showing - blank page

KCS

Fortinet Training Institute

User Statistics

User Activity

You are leaving our website