Topic
5 replies Latest Post - ‏2013-04-05T10:19:22Z by SystemAdmin
SystemAdmin
SystemAdmin
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Pinned topic IBM Flex System x240 Compute Node

‏2013-03-31T15:55:03Z |
Hi,

How to make 10 GB LOM to work at 1GB exterNAL swicth?

http://www-03.ibm.com/systems/flex/compute-node/x86/x240/specs.html

Ethernet IBM Virtual Fabric 2 x 10GbE LOM

thanks
Updated on 2013-04-05T10:19:22Z at 2013-04-05T10:19:22Z by SystemAdmin
  • Singy2002
    Singy2002
    4 Posts
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    Re: IBM Flex System x240 Compute Node

    ‏2013-04-02T15:26:18Z  in response to SystemAdmin
    Have you got a 4093 switch in the chassis? then you want to connect it into a 1GB uplink switch?

    If so then you need to buy a couple of the 1GB RJ45 SPF to connect from the chassis switch to your 1GB core network.

    This looks to be the correct one.

    IBM SFP RJ-45 Transceiver (does not support 10/100 Mbps) 81Y1618 3268 / EB29
    • SystemAdmin
      SystemAdmin
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      Re: IBM Flex System x240 Compute Node

      ‏2013-04-02T17:35:43Z  in response to Singy2002
      Hi

      We have EN4091 Pass thru module.
      • Singy2002
        Singy2002
        4 Posts
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        Re: IBM Flex System x240 Compute Node

        ‏2013-04-03T07:45:36Z  in response to SystemAdmin
        You will still need the RJ45 transceiver as per this redbook:

        http://www.redbooks.ibm.com/abstracts/tips0865.html

        81Y1618 3268 / EB29 IBM SFP RJ-45 Transceiver (does not support 10/100 Mbps)
        • Singy2002
          Singy2002
          4 Posts
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          Re: IBM Flex System x240 Compute Node

          ‏2013-04-03T07:47:19Z  in response to Singy2002
          additional excerpt

          With the flexibility of the IBM Flex System EN4091 10Gb Ethernet Pass-thru Module, clients can take advantage of the technologies that they require for multiple environments:

          For 1 GbE links, you can use SFP transceivers plus RJ-45 cables or LC-to-LC fiber cables, depending on the transceiver.

          For 10 GbE, you can use direct-attached copper (DAC, also known as Twinax) cables, which come in lengths between 1 m and 5 m. These DAC cables are a cost-effective and low-power alternative to transceivers, and are ideal for all 10 Gb Ethernet connectivity to the Top-of-the-Rack (TOR) switches. For longer distances, you can use SFP+ transceivers (SR or LR) plus LC-to-LC fiber optic cables.