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Question

Link Aggregation

12 replies
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Hello,

Is it possible to aggregate FortiGate 3100D 4 links to 4 different Cisco switches ?

Toshi_Esumi

SuperUser

It's not about the FGT, but it's about the Cisco switches. I think you have to have those switches stacked to have one Port-channel spread to multiple chassis.

YdaewAuthor

New Member

Thanks, Actually they are going to be stacked. So no special requirements but the switches to be stacked

ede_pfau

SuperUser

Yes, MCLAG is supported. I used to trunk a FGT cluster to H3C switch stacks.

Only thing to watch is that you should enable "fast mode" on the LACP trunk ports - check interval is 2 seconds then, instead of 30s. And active LACP, not passive or static.

kenneth_goh

New Member

Does FortiGate 50e support Link Aggregation?

SecurityPlus

Explorer III

I have the same question. Would like a link to a Fortinet list of FortiGate models that provide LAG. Thanks,

NKL

New Member

According to the FortiOS 6.2.1 "new features" (https://docs.fortinet.com/document/fortigate/6.2.1/new-features/226063/lacp-support-on-entry-level-e-series-devices), LACP is now also supported on generation E entry-level devices, specifically "90E, 80E, 60E, 50E, and 30E". Adding to the models of 100 and above, which already support LACP with older FortiOS releases.

So, I would assume the following (unconfirmed) list of LACP-capable FortiGate-/FortiWifi-devices:

30E (FortiOS 6.2.1 or higher)

50E (FortiOS 6.2.1 or higher)

60E (FortiOS 6.2.1 or higher)

80E (FortiOS 6.2.1 or higher)

90E (FortiOS 6.2.1 or higher)

100x and above (any FortiOS release)

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