Patent ID: 6519634
Filing Date: 2003-02-11
Classification: H04L

Abstract:
A method for establishing an IEEE 1394 virtual network, comprising the steps of:connecting a virtual network controller to a first node of a predetermined IEEE 1394 network, wherein the virtual network controller generates a virtual self ID packet including virtual node ID information required for constructing the IEEE 1394 virtual network, and the virtual network controller determines whether respective nodes of the virtual network are branches or leaves by performing virtual bus initialization; determining parent ports and child ports with respect to ports of the respective nodes and a root node by performing a virtual tree identification which establishes the first node as the root node; determining physical node IDs of the respective nodes by sending the prepared virtual self ID packet; wherein said virtual tree identification step comprises the steps of: setting a port of a leaf node as a parent node by the virtual network controller and the leaf node sending a parent_notify signal to a branch node; and the branch node transferring a child_notify signal to the virtual network controller and the leaf node, then setting itself as a child port and becoming the root node when the branch node receives the parent_notify signal.