Indicate whether this virtual Ethernet adapter is the trunk adapter on this virtual Local Area Network (LAN).
A trunk adapter is an Ethernet adapter that links its LAN to an external network. If a data transmission on the virtual LAN is addressed to an Ethernet adapter that does not exist on the virtual LAN, the data transmission is sent to the trunk adapter. The trunk adapter can then forward the data transmission to an external network.
Selecting this option will not automatically connect the virtual LAN to an external network. You must also configure the operating system of the logical partition to forward information to the external network.
Not all versions of all operating systems support trunk adapters. Your operating system might support other methods for connecting logical partitions to external networks. To determine which method is appropriate for your situation, consult the documentation for your operating system.
A virtual LAN can have only one active trunk adapter at a time. You can create only one trunk adapter for each virtual LAN on your managed system unless you are creating redundant trunk adapters for virtual trunk adapter failover capability. If you create redundant trunk adapters for virtual trunk adapter failover capability, you must follow these rules when creating these adapters: