How to configure jumbo frames on a VLAN tagged interface ?

Solution Verified - Updated -

Issue

  • Jumbo frames need to be configured on one or more VLAN tagged interface.
  • Adding MTU=9000 to the VLAN device's /etc/sysconfig/network-scripts/ifcfg file has no effect. The MTU is still 1500 in ip a output.
  • Can different VLANs attached to the same bond device have a different MTU than the bond?

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • Red Hat Enterprise Linux (RHEL) 7
  • Red Hat Enterprise Linux (RHEL) 8
  • Red Hat Enterprise Linux (RHEL) 9 Beta

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