6 Responses

  1. NiTRo
    NiTRo at |

    Hi Chris, this is an interesting testing indeed. In case you didn’t noticed, VMware specified this statement in the 5.1 release notes (http://www.vmware.com/support/vsphere5/doc/vsphere-esx-vcenter-server-51-release-notes.html#networkingissues) : “vSphere 5.1 network I/O control limits have been narrowed to a per uplink basis.” But that doesn’t explain the 100mbps behavior…

    Reply
  2. Technology Short Take #28 - blog.scottlowe.org - The weblog of an IT pro specializing in virtualization, storage, and servers

    [...] Wahl has a nice write-up on the behavior of Network I/O Control with multi-NIC vMotion traffic. It was pointed out in the comments that the behavior Chris describes is documented, but the [...]

  3. Loren
    Loren at |

    I believe with a distributed switch you can configure ingress traffic shaping per port group in order to mitigate the many-to-one situation…

    Reply
  4. Leveraging Traffic Shaping to Control Multi-NIC vMotion Bandwidth via @ChrisWahl | Wahl Network

    [...] to know more about setting host limits using NIOC? Check out my “Testing vSphere NIOC Host Limits on Multi-NIC vMotion Traffic” [...]

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