The Direct Attach feature, which is based on the IEEE version of VEPA, eliminates the virtual switch layer, simplifying the network and improving performance.
Direct Attach enables data center simplification by reducing network tiers from four or five tiers to just two or three tiers, depending on the size of the data center.
This feature pack is included with all ExtremeXOS software licenses and can be enabled by purchasing and enabling a feature pack license key.
For more information about the direct attach feature, see "Managing Direct Attach to Support VEPA" in the ExtremeXOS 16.2 User Guide.