Explorer II

Question

Fortiswitch - ISL query

Forum|Forum|4 years ago
April 19, 2022
2 replies
2054 views

Hi, I am new to Fortiswitch. We have 2 Fortiswitch (124) acting as our WAN switch to do WAN link extension to our Fortigate A-P cluster. I read lot of documents which says to connect ISL link between two fortiswitches. But I really dont want ISL link between these switches to pass vlans across switches. I will connect ISP link at each switches and just want to do L2 cross connection/extension of these WAN links to FG cluster. For management, I want to connect Fortilink from both the fortigate to fortiswitches. Can I skip ISL link on this scenario?

FortiSwitch v6.4

New Contributor III

Hello rajamanickam,

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.

Thanks,

Fortinet Community Team

Staff

Hi,

From what i understand, you want to connect FGT (2 ports) - 1 port connecting to FSW1 and 1 port connecting to FSW2. Both switches managed by FGT.

FSW1 connected to ISP1 and FSW-ISP2.

This can be achieved. You can use interface type as "hardware switch" on FGT https://docs.fortinet.com/document/fortiswitch/7.0.4/devices-managed-by-fortios/801202/single-fortigate-unit-managing-multiple-fortiswitch-units-using-a-hardware-or-software-switch-interface

Could you please send the documentation link where it says to connect ISL.