Scenario: Virtual LAN (VLAN) support
VLAN technology works according to IEEE Standard 802.1Q by logically segmenting the network into different broadcast domains. Thus packets are switched only between ports that are designated for the same VLAN.
By containing traffic that originates on a particular LAN to other LANs within the same VLAN, switched virtual networks avoid wasting bandwidth. Wasted bandwidth is a drawback inherent in traditional bridged/switched networks where packets are often forwarded to LANs that do not require them.
Building a Linux® kernel with VLAN and OSA-Express support is a prerequisite for using VLAN under Linux.
The qeth device driver for OSA-Express (QDIO) and HiperSockets supports priority tags as specified by IEEE Standard 802.1Q for both layer2 and layer3.