Problem

How to add another LPAR with a new vlan to an existing SEA.

Solution

  • Without downtime: Create one more virtual Ethernet with new vlan, then add this adapter to the current SEA and change the property with chdev command.

    (where entX is the SEA and entY is the adapter that was already part of the SEA and entZ is the new virtual adapter.
  • With Downtime: Simple destroy and recreate the SEA with extra vlan tag port.