Skip to main content
Ydaew
Ydaew
New Member
May 30, 2019
Question

Link Aggregation

  • May 30, 2019
  • 2 replies
  • 22219 views

Hello,

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

    2 replies

    Toshi_Esumi
    SuperUser
    Toshi_Esumi
    SuperUser
    May 30, 2019

    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.

    Ydaew
    YdaewAuthor
    New Member
    May 30, 2019

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

    ede_pfau
    SuperUser
    ede_pfau
    SuperUser
    May 31, 2019

    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
    kenneth_goh
    New Member
    September 6, 2019

    Does FortiGate 50e support Link Aggregation?

    SecurityPlus
    SecurityPlus
    Explorer III
    September 6, 2019
    I have the same question. Would like a link to a Fortinet list of FortiGate models that provide LAG. Thanks,
    NKL
    NKL
    New Member
    September 6, 2019

    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)

    Terms & ConditionsAccessibility statement