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Arista MLAG to EX4200 ?

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  • 1.  Arista MLAG to EX4200 ?

    Posted 09-27-2019 12:29


    I have 2x Arista Fiber Switches and they are working in MLAG mode and i want to connect 1 fiber from each arista to one of my juniper ex4200, so i want to know can i create lacp on juniper with these 2 fiber from two different arista without any issue or problem?

    THank you.

  • 2.  RE: Arista MLAG to EX4200 ?

    Posted 09-27-2019 12:35

    At the Juniper EX4200 you would create an AE that contain the multiple links, and then run LACP on top of this.  LACP enabled is not default action for a Junos AE.  On the Arista side, both their MLAG ports on the different switches should be configured to run LACP as well.

  • 3.  RE: Arista MLAG to EX4200 ?

    Posted 09-27-2019 21:52


    i want to just make sure they are comptible if i configure them in this way and there is no incompatibility,

  • 4.  RE: Arista MLAG to EX4200 ?
    Best Answer

    Posted 09-28-2019 03:32

    Yes the standard ae with lacp is standards based so will be compatible with the MLAG link.