The paper is suggesting a variant of the local area network (LAN) architecture, allowing to share resources of the isolated users. The main task was to find a LAN construction method with high protection and confidence for any traffic generated by some users groups. The key aspect of the LAN architecture is the operation with regular structures and typical elements (Ethernet switches) for all designed nodes. We consider in details two suggested methods of design of asymmetric VLAN with such architecture. This consideration shows the practical way of LAN designing to be used for standardized and reproducible solutions, depending on required system functionality and required access to resources. One can find recommendations on how to choose the way of building a LAN, restrictions and advantages of the method.

Programming, parallel computing, multimedia