nic teaming on esxi management interface

Posted on 2009-12-22
Last Modified: 2012-05-08
Hi Guys,
i have installed vmware esxi 4.0 on Dell PE blade server. it has got one quadcore NIC. i want to enable active-active laod balancing/nic teaming on management intefrace.but the problem is when enable the nic teaming on management interface from VI client and try accessing it i'm loosing connectivity to the management interface.can some one suggest what i'm supposed to do?
Question by:APPIREDDY
    LVL 42

    Expert Comment

    If you're setting up a VM Network on the same vswitch as your management interface and you have 4 nics attached to it then vmware will do a very basic load balance.  It will assign the VMs to different physical nics and will run then on that interface untill there is a need to failover.

    The only way to do active load balancing is to setup Cisco ehterchannel on a switch and setup trunk ports.  This will aggregate and load balance the 4 ports.

    You can also create a separate vswitch for your virtual machines so that your management port is on a separate vswitch and is not competing for bandwidth (albeit it is not large amount)

    On the new vswitch you can assign 2 or 3 physical nics and you're set.  Unless you have a lot of VMs and/or high throuphput VMs the basic load balancing works just fine, I have had several dozon VMs on a single vswitch with 2 physical nics with no issues in the past
    LVL 24

    Expert Comment

    Like paul said, if you dont have many VMs the internal load balancing is good enough but take note, as this is only for outbound traffic for proper load balancing outbound& inbound traffic standard link aggregation protocol such as LACP is required

    I suggest the following

    vSwitch0(mgmt/vmk) = vmnic0 & vmnic1 (put both to active in the vSwitch failover policy)
    vSwitch1(VM network) = vmnic2 & vmnic3 (put both to active in the vSwitch failover policy)

    Accepted Solution

    Hi Guys,
    Thanks for the suggestions.i have already taken care of layout of what NIC's should go on which switch and load balancing e.t.c. My question was as soon as i enable the Nic teaming on Management interface/Vm Network(combination), i was loosing the connection to the Host from VI client.

    This issues has now been resolved. I think i will outline the cause and how i fixed it, so that other can benefit.
    Problem: By default, when you enable the nic teaming on esxi 4.0 management/vmnetwork, you will loose the connection to host and you won't be able to manage the host using VI client.

    Usual Setup: i have 1 quad core nic [4-ports, i.e 4-vmnic(vmnic0,vmnic1,vmnic2,vmnic3)]
    Initial esxi 4.0 installation: both Management network and vmnetwork are on vmnic0 on vswitch0
    Physical Switch used: cisco 2960 (layer-2 switch)
    Physical switch configuration: ether channel with trunking enabled ( 2 ether channels one for management/vmnetwork and another trunk for iSCSI network)
    Network ty: Network with multiple VLAN and Routing in place

    --Reason why one may loose connection to esxi 4.0 host after enabling failover/nic teaming?
    VLAN tagging is not enabled. i mean both management  and vmnet must be tagged with vlan id, which will enable the routing of the packets in a VLAN environment.
    Fix: Just give Vlan ID for both Management and vmnetwork and then enable failover/nic teaming and use Route based of Ip-hash
    make sure you do this for both management network and vmnetwork on the same switch invidually enabling the nic teaming by selecting the checkboxes under failover.

    This fixed my issue.
    Hope this will help you guys.
    if you need any more explanation, please let me know


    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Do You Know the 4 Main Threat Actor Types?

    Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

    Suggested Solutions

    Title # Comments Views Activity
    vSphere 6 client with vCenter 5.5 2 47
    Admin EMC vnx and BMC 4 44
    Vmkernel por 4 29
    execute powerhsell script on multipl vm 6 29
    VMware ESX/ESXi Backup Guide If you have a licensed version of ESX/ESXi, (paid for license) you could purchase the following third party applications to perform backups. If you do not have a licensed version of ESX/ESXi, your options are limited,…
    In vSphere 4 1 and 5.0, you can enable both Remote SSH and the ESXi Shell for management of hosts from the vSphere Client and from the Direct Console User Interface. You may have noticed that on enabling both Remote SSH and the ESXi Shell for man…
    Teach the user how to configure vSphere clusters to support the VMware FT feature Open vSphere Web Client: Verify vSphere HA is enabled: Verify netowrking for vMotion and FT Logging is in place or create it: Turn On FT for a virtual machine: Verify …
    Teach the user how to join ESXi hosts to Active Directory domains Open vSphere Client: Join ESXi host to AD domain: Verify ESXi computer account in AD: Configure permissions for domain user in ESXi: Test domain user login to ESXi host:

    759 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    9 Experts available now in Live!

    Get 1:1 Help Now