MTU for vlan iface.

[linux-system-roles]

MTU for vlan iface.

[tyll]

There was a bug in NM about setting MTU for VLANs that was fixed in the meantime: https://bugzilla.redhat.com/show_bug.cgi?id=1414901

@vkhatuwala can you please check if the bug is still present?

[pcahyna]

It is defnitely broken, here is my test playbook:

network_connections:
  - name: eth1
    type: ethernet
    autoconnect: no
    state: up
    mtu: 1500
    ip:
      dhcp4: no
      auto6: no

  - name: eth1.90
    parent: eth1
    type: vlan
    vlan_id: 90
    mtu: 1500
    ip:
      dhcp4: no
      auto6: no

I get the following error:

failure: created connection failed to normalize: nm-connection-error-quark:
connection.type: property is missing (6)

the mtu setting on eth1 is not a problem, but on eth1.90 it is.

[pcahyna]

This is on RHEL 7.6.

[tyll]

@thom311 do you have an idea what the error message means?