US 2003/0156536 A1 · Node, an optical/electrical path integrated network using the node, and a program which controls the node

Abstract

The invention relates to a node, an optical/electrical path integrated network using this node, and a program which controls the node. The node according to the invention is suited to use in an optical/electrical path integrated network constructed from a plurality of electrical sub-networks comprising nodes which are interconnected by electrical paths in which routing is performed based on packet header information and a photonic core network comprising nodes which are interconnected by optical paths, the photonic core network and the plurality of electrical sub-networks being interconnected by optical paths, wherein the node comprises a device which outputs to other nodes, a traffic quantity between the node to which it belongs and other nodes.

Claims53

Dependent claims

A node, for use with an optical/electrical path integrated network which includes a plurality of electrical sub-networks comprising nodes which are interconnected by electrical paths and which performs routing based on packet header information and a photonic core network comprising nodes which are interconnected by optical paths, the photonic core network and the plurality of electrical sub-networks being interconnected by optical paths, wherein;

the node comprises an outputting device which outputs to other nodes a quantity of traffic between an own electrical sub-network to which the node belongs and other electrical sub-networks.

An optical/electrical path integrated network, comprising:

a plurality of electrical sub-networks comprising nodes which are interconnected by electrical paths, in which routing is performed based on packet header information;
and
a photonic core network comprising nodes which are interconnected by optical paths, wherein
the photonic core network and the plurality of electrical sub-networks are interconnected over optical paths by nodes comprising a device which outputs to other nodes a quantity of traffic between an own electrical sub-network and other electrical sub-networks.

1 more element

A program, which by installation on an information processing device enables the information processing device to realize functions required of an apparatus which controls nodes provided in an optical/electrical integrated network which includes a plurality of electrical sub-networks comprising nodes in which routing is performed based on packet header information and a photonic core network comprising nodes which are interconnected by optical paths, the photonic core network and the plurality of electrical sub-networks being interconnected by optical paths,

wherein the functions allow each node to output to other nodes a quantity of traffic between an own electrical sub-network and other electrical sub-networks.

A storage medium readable by an information processing device, on which a program is stored which by installation on an information processing device enables the information processing device to realize functions required of an apparatus which controls nodes provided in a optical/electrical integrated network including a plurality of electrical sub-networks comprising nodes in which routing is performed based on packet header information and a photonic core network comprising nodes which are interconnected by optical paths, in which the photonic core network and the plurality of electrical sub-networks are interconnected by optical paths,

wherein the functions allow each node to realize a function which outputs to other nodes a quantity of traffic between an own electrical sub-network and other electrical sub-networks.

A path establishment method, used with an optical/electrical path integrated network comprising electrical sub-networks which exchange data in packet units and a photonic core network which interconnects the electrical sub-networks, in which the photonic core network comprises a photonic border node and a photonic core node, and the electrical sub-networks comprise an electrical border node and an electrical core node, and the electrical border node and the photonic border node provided in the electrical sub-network and the photonic core network adjacent to the electrical sub-networks are connected, comprising the steps of:

the photonic border node stores topology information for the photonic core network;
the photonic border node calculates a shortest path between photonic border nodes based on the stored topology information of the photonic core network;
the photonic border node establishes an optical path over the calculated shortest path between the photonic border nodes;
the electrical border node stores topology information for a network constructed from optical paths established over the photonic core network;
the electrical border node calculates a shortest path between electrical border nodes based on the stored topology information of the network;
the electrical border node establishes an electrical path over the calculated shortest path between the electrical border nodes;
the electrical border node detects two electrical sub-networks which are exchanging a highest quantity of traffic among from electrical sub-networks which are not yet connected by an optical path;
and
the electrical border node establishes an optical path between the two detected electrical sub-networks.

6 more elements

Dependencies are inferred from the claim text.

Node, an optical/electrical path integrated network using the node, and a program which controls the node

Life of this patent

Node, an optical/electrical path integrated network using the node, and a program which controls the node

Life of this patent

Abstract

Claims53