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  • 1.  Jumbo frames on linux guest

    Posted Mar 10, 2010 07:36 PM

    We setup Jumbo Frames throughout all our network settings and have it working. The interesting thing and my question as to why:

    On linux guests (all I've tested) and vmxnet3 even if the MTU is set to 1500, ping -s 9000 host works just fine.

    Is this to be expected? Is there no need to ifconfig eth? mtu 9000 on the hosts like in the physical world?

  • 2.  RE: Jumbo frames on linux guest
    Best Answer

    Posted Mar 10, 2010 08:12 PM

    The packets are likely being fragmented.

    try a 'ping -s 9000 -M do x.x.x.x ' to set the no fragment bit. Additionally, try pinging with a packet size of 10000, if those work fine, the packets are being fragmented.

    Hope this helps!