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VDX-6740(any vdx?) two switches - logical chassis vs any other setup - which?

  • 1.  VDX-6740(any vdx?) two switches - logical chassis vs any other setup - which?

    Posted 09-11-2018 12:46
    hi everyone,

    I'm preparing two switches to put into rack's top and I wonder...

    Most, almost all of the nodes in the rack, Linuxes, are using LAGs or what is in modern linuxes called net-team devices.

    Stack from which I'm hoping to migrate away is Dell's and it's one stack(three switches) which would be in Brocade's nomenclature be called a logical chassis, I understand.

    Redundancy is "assured" by switches and LAGs and net-team devs are in LACP modes.

    One major difference between my Dells & Brocades is that Dells are single whereas Brocades are dual PSU.

    Now, back to what I wonder about... Is, in scenario with two Brocades(three max) a logical chassis the only way for how have the rest of the stack?

    I imagine logical chassis would be the easiest to manage setup but maybe there is better, more beneficial, more resilient configuration, like...
    With NOS upgrades in mind and Lossless Upgrades - that would be nice to have, but is this possible with only two switches/logical chassis setup?

    And those vLAGs - only starting reading docs and I'm new to Brocade - would these be better alternative?

    many thanks, L.



  • 2.  RE: VDX-6740(any vdx?) two switches - logical chassis vs any other setup - which?

    Posted 09-13-2018 11:28
    I would suggest that the option you have chosen logical chassis with two nodes offers you the best redundancy / resilience.

    Each node could be upgraded individually whilst maintaining service through out, assuming all nodes are connected to the fabric using LACP vLAG