FIELD: method for protecting isolation of Ethernet network services, in particular, method for realization of virtual private network (VPN) on Layer 2 Ethernet, which is used by providers of telecommunication services for providing services of Ethernet network.
SUBSTANCE: method for protective isolation of service in Ethernet network is claimed for fulfilling the need of providers of telecommunication services in creation of second virtual private network of Ethernet services, where firstly client identifier is distributed for physical port, used for connecting client service; a service received in physical port is marked by client identifier; after procedure of commutation and routing of service it is determined whether the client identifier in the service coincides with identifier of client in the port, if loading of service from specific physical port is concerned, and only after that appropriate service may be loaded.
EFFECT: solution of problem of limited usage of virtual local network (VLAN) for Ethernet network within limits of one enterprise, solution of problem of protective isolation when providing services of Ethernet/VLAN network to large number of enterprises, and provision of method for realization of VPN technology on Layer 2 Ethernet, and also provision of full virtual bridge for providing transparent data transmission.
13 cl, 2 dwg
