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  • 1.  ESXi network redundancy

    Posted Mar 05, 2016 08:55 AM

    Hello All

    I would like to ask some questions regarding my network design.

    I  use small blade solution from DELL. (Dell VRTX).

    Currently we have two blade servers M620 in HA cluster installed with ESXi 5.5 with Essential plus licence.

    I did decision to make my network setup more redundant.

    Every blade has two-port 10gb LOM connected to internal switch (I/O module inside Blade chassis) and additionaly connected two-port PCI Network cards.

    In attachement you can find my network design layout.



    NIC1,NIC2 = LOM


    NIC1+NIC3 = Kernel Ports (NIC 1 - Standby adapter)

    NIC2*NIC4 = Standart ports (NIC2 - Standby adapter)

    VSWITCH1 = Used for V-MOTION , MANAGEMENT NETWORK , (same network as our LAN network , VLAN7)

    VSWITCH2 = MPLS Network for branch offices with 3 VLans

    RED CONNECTION = untaged vlan 7 traffic

    BLUE CONNECTION = Trunk (VLAN1,2,3)

    GREEN CONNECTION = Trunk (VLAN 1,2,3,7)

    BB SWITCH is two node stucked switch.

    I would like to ask if my design is correct.

    Thanks in Advance

  • 2.  RE: ESXi network redundancy
    Best Answer

    Posted Mar 05, 2016 10:11 AM

    Hi Roman,

    First, I would split management and vMotion traffic into seperate VLANs. I've seen some vMotion process going wild, I like to keep that seperated ;-)

    So you could use NIC1 for management, with NIC3 on standby for that and use NIC3 for vMotion with NIC1 on standby.

    Second I would recommend to use NIC2 and NIC4 in active/active mode, so you actually use the second card for load balancing the VM network traffic and not wasting it in standby mode.



  • 3.  RE: ESXi network redundancy

    Posted Mar 08, 2016 02:04 PM

    Thank you for your answer.

    I would like to ask last thing. Can I use load balancing trough the two separate switches .. ?

    Thanks in Advance


  • 4.  RE: ESXi network redundancy

    Posted Mar 08, 2016 02:19 PM


    yes. In the default setting the ESXi will distribute the VMs onto both NICs without any configuration need on the switches.

    It's just a simple "load balancing".

    The first VM started will use nic1, the second VM use nic2, the third nic1, etc.