Fault tolerant network architecture

The invention claims a fault-tolerant network frame, wherein a a addressable network the first network interface network node. A arranged in the first network interface IP address of the first IP address distance is defined to the first network interface. The network node - comprising a IP address distance of the first IP address spaced at least one virtual IP address of two. The first network interface at least virtual IP address round to addressable network, and capable addressing to at least virtual IP address data packet is connected to the first network interface.