Data transmitting node and network inter-connection node suitable for home network environment

A data transmitting node connected with a physical network, comprising:

• a first transmission unit for transmitting a control message in a case of transmitting information data to a receiving node connected with the physical network or another physical network, the control message including an IP (Internet Protocol) address information of a data transmission destination, a header or channel information dependent on the physical network, and an information on a format of the information data to be transmitted according to the header or channel information so as to notify a network connection device on a communication path that the information data that pass through the communication path established by the control message will be in the indicated format;
• and
• a second transmission unit for transmitting the information data in said format which contains the header or channel information to the receiving node.

A method of data transmission at a data transmitting node connected with a physical network, comprising the steps of:

• (a) transmitting a control message in a case of transmitting information data to a receiving node connected with the physical network or another physical network, the control message including an IP (Inertnet Protocol) address information of a data transmission destination, a header or channel information dependent on the physical network, and an information indicating a required communication resource so as to notify a network connection device on a communication path that the information data that pass through the communication path established by the control message are reciuiring an indicated amount of communication resource;
• and
• (b) transmitting the information data containing the headef/ehaftnel header or channel information for which the required communication resource is reserved, to the receiving node.

A method of data transmission at a data transmitting node connected with a physical network, comprising the steps of:

• (a) transmitting a control message in a case of transmitting information data to a receiving node connected with the physical network or another physical network, the control message including an IP (Internet Protocol) address information of a data transmission destination, header or channel information dependent on the physical network, and an information on a format of the information data to be transmitted according to the header or channel information so as to notify a network connection device on a communication path that the information data that pass through the communication path established by the control message will be in the indicated format;
• and
• (b) transmitting the information data in said format which contains the header or channel information, to the receiving node.