Technical Tip: FortiLink P2P supported network top...

riteshpv · 12-05-2025

Description This article explains an issue where the FortiLink ISL experiences timeouts on a trunk after upgrading a FortiSwitch configured in FortiLink L3 mode to version 7.6.4, and outlines the steps to resolve it. Scope FortiGate, FortiEdge Cloud,...

riteshpv · 12-05-2025

Description This article explains the reason and solution for network instability that occurs when multiple Tier-2 MCLAG-ICL FortiSwitch pairs are connected to a Tier-1 MCLAG-ICL pair when setup in FortiLink mode. Scope FortiSwitch OS v7.4, v7.6. Sol...

riteshpv · 10-20-2025

Description This article describes the trunk configuration required on FortiSwitch uplinks when deployed as an MCLAG-ICL pair and connecting to dual routers or firewalls in an L3 topology. Scope FortiSwitch v7.4, v7.6. Solution Topology Overview: For...

riteshpv · 10-17-2025

Description This article explains the issue where login attempts to the FortiSwitch GUI or CLI (SSH) using LDAP credentials fail, and provides the resolution. Scope FortiSwitchOS v7.4, v7.6 Solution Observations: When attempting login from the FortiS...

riteshpv · 09-16-2025

Description This article describes the error observed on FortiSwitch and outlines the possible cause and solution. Scope FortiSwitch OS versions: v7.4.2, v7.6.2. Solution Issue: In FortiSwitch logs, continuous error messages may be observed regarding...

riteshpv · 03-19-2025

Hi, I believe their is a FGT internal interface (let say port10) under this you have vlan 50. You want to share/extend this vlan50 to fortilink network. i.e client on FSW want to get Ip from vlan50. If the above is true then it is not possible as the...

riteshpv · 03-07-2025

Hi, As I understand you are trying to setup FSW on Fortilink with Cisco switch in between. This is not a recommended design for Fortilink L2 deployment. 1> Either you setup this FSW directly connected to FGT this is a L2 setup. 2> Or have Cisco conne...

riteshpv · 01-17-2025

Hi, As mentioned in guide Queue-7 is used for network and critical management traffic. If the FSW is managed then your Fortilink would get affected. I would suggest avoid using that specific queue. Understanding control traffic, refer link: QOS queue...

riteshpv · 11-11-2024

Hi, I understand you have 300 standalone FortiSwitches that you’d like to transition to a managed configuration using FortiSwitch Manager. If that’s the case, these FortiSwitches will need to be manually configured to enable management by FortiSwitch...

riteshpv · 11-13-2023

Hi Jacky, Disable dhcp-snooping if enabled on vlans. If you still see issue then provide the following logs in the TAC ticket with FSW serial no. show full-configuration diagnose switch pdu-counters listdiagnose debug crashlog readdiag debug report R...

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Troubleshooting Tip: FortiLink ISL timing out for trunk after upgrading FortiSwitch to v7.6.4

Technical Tip: Connecting multiple Tier-2 MCLAG-ICL FortiSwitch pairs causes network instability

Technical Tip: Configuring uplinks for MCLAG-ICL pair in L3 FortiSwitch deployment

Technical Tip: Unable to log in to FortiSwitch using LDAP credentials

Troubleshooting Tip: Continuous Error 0A000416:SSL routines::sslv3 alert certificate unknown

Re: Issue with VLANs in FortiLink and FSW – No DHCP on vlans

Re: Issue with VLANs in FortiLink and FSW – No DHCP on vlans

Re: FortiSwitch QoS Configuration for Audinate Dante devices (PTP and Audio)

Re: Migrate Fortinet switches to FortiSwitch Manager

Re: FortiSwitch FS-108F got CPU_SENSOR warning event and Memory high usage and System high temperatu

Technical Tip: FortiLink P2P supported network top...

Technical Tip: HTTPS access to managed FortiSwitch

Technical Tip: Understanding FortiLink Trunks and ...

Re: Issue with VLANs in FortiLink and FSW – No DHC...

Re: Issue with VLANs in FortiLink and FSW – No DHC...

Re: FortiSwitch QoS Configuration for Audinate Dan...

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