The method and apparatus of the present invention provides a flexible and scalable network virtual trimmed. Segments within the virtual network identified as segment bundling device supports. A first support section host virtual network device connected to the first bridge and the second bridge connected to the second host device. Segment bundling device for receiving a description of the virtual network segment segment identifier (ID), virtual network addressing information, receiving the virtual network segment ID for the virtual network traffic of the first host and the second host. Generating segment using the segment bundling device bundling table, based on the segment bundling table ID and the segment ID of the virtual network ID bundle ID virtual network segment identifier. Segment bundling device for distributing traffic segment bundling table to the virtual network forwarding devices, bridge traffic forwarding device and the first device and the second bridge apparatus connected to the interface.