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Setting MTU on ibmveth-NIC larger than 2000 Bytes not possible on a pSeries server

This document (3086596) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 10


Setting MTU on ibmveth-NIC larger than 2000 bytes is not possible on a pSeries server

ifconfig eth0 mtu 9000
SIOCSIFMTU: Invalid argument


Enable the setting /sys/class/net/eth0/device/pool2/active in the following
way in order to be able to use MTUs larger than 2000:
echo 1 >/sys/class/net/eth0/device/pool2/active
ifconfig eth0 mtu 9000


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  • Document ID:3086596
  • Creation Date: 16-Feb-2007
  • Modified Date:22-Feb-2021
    • SUSE Linux Enterprise Server

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