Two nics, one server - unmanaged switch

Discussion in 'Server Networking' started by Boe, Aug 4, 2007.

  1. Boe

    Boe Guest


    I was curious if there is a way to give my server more throughput. I
    currently have all gigabit switches (unmanaged). My server is a 2950 and
    we work with a lot of very large files. I have enough memory and
    processing power however the network throughput is a little high.
    Currently I have one nic connected.

    Boe, Aug 4, 2007
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  2. Hello,
    2950? Dell I assume, but the digit alone doesn't tell anything.
    Did you install the network drivers, which came with the Dell CD (or have
    they been preinstalled)?
    In this case you should find the Broadcom utility in Startmenu / All
    Programs Programs / Broadcom / Advanced Control Suite 2, which allows you to
    configure a team. (You will need 3 IP addresses, one for each physical
    interface and the one for the virtual (teamed).
    Best greetings from Germany
    Olaf Engelke [MVP Windows Server], Aug 5, 2007
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  3. Boe

    Boe Guest

    GOod info - thanks. I'm looking forward to giving it a try but I need to
    install the latest drivers. Right now I'm in the middle of transferring
    over a terabyte of data so I don't want to interrupt it.
    Boe, Aug 5, 2007
  4. You have to make sure your switch can handle it. Since a switch associates
    a MAC Address with a specific single switch port it may lock onto only one
    port (and hence only one nic) and you won't gain anything.

    Phillip Windell

    The views expressed, are my own and not those of my employer, or Microsoft,
    or anyone else associated with me, including my cats.
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    Phillip Windell, Aug 6, 2007
  5. You can't do adapter teaming with a unmanaged switch. Switch needs to be
    managed and support one of the teaming protocols.
    Joshua Bolton, Aug 7, 2007
  6. Boe

    Chris Guest

    As long as both NIC's are plugged into the same unmanaged switch you should
    be able to team successfully and get the both NIC's to work as one. The only
    thing in using an unmanaged switch id that you will get 2gb throughput on
    send but only the primary nic will be able to receive data (1gb)

    If you want to get full teaming you'll need a managed switch which supports
    803.2ad standard. You can then have multiple stacks of switches and
    distribute between switches in the same stack for failover.

    Usually the manufacturer will supply some teaming software. I have used
    broadcom and intel in the past with no problems


    Chris, Aug 8, 2007
  7. Boe

    Boe Guest

    I'm getting lots of good info - THanks everyone - I'm going to give the
    built in broadcom nics a try (which have teaming capabilities) and we are
    about to try out the new netgear smart switches (semi managed) GS748TS
    Boe, Aug 8, 2007
  8. Boe

    Chris Guest

    Looking at the spec Boe you should get full teaming capabilities. One thing
    to check is that you may need to physically pair the ports on the switches
    for the team to work. Some will automatically team if the NIC's are teamed
    and spanning tree is enabled.

    One thing to note if you are using 2 switches and not using the stacking
    modules to stack the units (ie using a cat 5 uplink cable) you will need to
    put both nic's in the same switch.
    Chris, Aug 8, 2007
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