Routing system

A routing system for establishing a plurality of connections for each call between a transmission terminal and a reception terminal through a plurality of nodes, prior to transmission of information from said transmission terminal to said reception terminal, and for selecting one connection from among said plurality of connections for each unit of information;

• said routing system comprising:
• means provided at said node, for a section where all of said connections take different routes, for establishing said connections without changing the routes, and for a section where at least two connections take the same route, for combining said connections that take the same route into one connection;
• and
• means provided at said node, for making arbitrary connections between a first connection at an input side of said node which is a combined connection or is selected from a plurality of connections, and a second connection at an output side of said node which is a combined connection or is selected from a plurality of connections
• wherein, said means for making arbitrary connections includes means for changing connecting relationship between said first connection and said second connection for each said unit of information in accordance with information held by said node indicative of at least one of a congestion state and a load condition of a network including said transmission terminal, said reception tenninal, and said plurality of nodes.

A routing system for establishing a plurality of connections for each call between a transmission terminal and a reception terminal through a plurality of nodes, prior to transmission of information from said transmission terminal to said reception terminal, and for selecting one connection from among said plurality of connections for each unit of information;

• said routing system comprising:
• means provided at said node, for a section where all of said connections take different routes, for establishing said connections without changing the routes, and for a section where at lest two connections take the same route, for combing said connections that take the same route into one connection;
• and
• means provided at said node, for making arbitrary connections between a first connection at an input side of said node which is a combined connection or is selected from a plurality of connections, and a second connection at an output side of said node which is a combined connection or is selected from a plurality of connections
• wherein, said means for establishing connection includes means for establishing said plurality of connections, and thereafter, for a section where all of the connections take the same route, for combining said connections into one connection, and for identifying the unused connections as a result of said combining as unused connection identifiers.

A routing system for establishing a plurality of connections for each call between a transmission terminal and a reception terminal through a plurality of nodes, prior to transmission of information from said transmission terminal to said reception terminal, and for selecting one connection from among said plurality of connections for each unit of information;

• said routing system comprising:
• means provided at said node, for a section where all of said connections take different routes, for establishing said connections without changing the routes, and for a section where at lest two connections take the same route, for combing said connections that take the same route into one connection;
• and
• means provided at said node, for making arbitrary connections between a first connection at an input side of said node which is a combined connection or is selected from a plurality of connections, and a second connection at an output side of said node which is a combined connection or is selected from a plurality of connections
• wherein, said means for establishing connection includes means for mapping the connection identifier of said first connection and said second connection wherein said second connection is already set up for a destination which is same as that of said first connection and for setting up each plurality of connections as a combined connection.

A routing system for establishing a plurality of connections having Virtual Channel Identifiers (VCIs) or Virtual Path Identifiers (VPIs) for each call between a transmission terminals and a reception terminal through a plurality of nodes, prior to transmission of information from said transmission terminal to said reception terminal, and for selecting one connection from among said plurality of connections for each unit of information;

• said routing system comprising:
• a node, said node having a first section where all said connections take different routes, and for establishing said connections without changing the routes, and a second section where at least two connections that take the same route and for combining said connections that take the same route into a combine connection having one VCI or one VPU;
• and
• a connecting device for making arbitrary connections between a first connection at an input side of at least one of said nodes which is a combined connection or is selected from a plurality of connections, and a second connection at an output side of at least one of said nodes which is a combined connection or is selected from a plurality of connections.

A routing system for establishing a plurality of connections for each call between a transmission terminal and a reception terminal through a plurality of nodes, prior to transmission of information from said transmission terminal to said reception terminal, and for selecting one connection from among said plurality of connections for each unit of information;

• said routing system comprising:
• a node, said node having a first section where all said connections take different routes, and for establishing said connections without changing the routes, and a second section where at least two connections that take the same route and for combining said connections that take the same route into one connection;
• and
• a connecting device, provided at said node, for making arbitrary connections between a first connection at an input side of said nodes which is a combined connection or is selected from a plurality of connections, and a second connection at an output side of said node which is a combined connection or is selected from a plurality of connections,
• wherein said connecting device for making arbitrary decisions includes a changing connection unit for changing connecting relationship between said first connection and said second connection for each said unit of information in accordance with information held by said node indicative of at least one of a congestion state and a load condition of a network including said transmission terminal, said reception terminal, and said plurality of nodes.

A routing system for establishing a plurality of connections for each call between a transmission terminal and a reception turminal through a plurality of nodes, prior to transmission of information from said transmission terminal to said reception terminal, and for selecting one connection from among said plurality of connections for each unit of information;

• said routing system comprising:
• a node, said node having a first section where all said connections take different routes, and for establishing said connections without changing the routes, and a second section where at least two connections that take the same route and for combining said connections that take the same route into one connection;
• and
• a connecting device, provided at said node, for making arbitrary connections between a first connection at an input side of said nodes which is a combined connection or is selected from a plurality of connections, and a second connection at an output side of said node which is a combined connection or is selected from a plurality of connections,
• wherein said connection device for establishing said connections includes a connection unit for establishing said plurality of connections, and thereafter, for said second section where all of the connections taking the same route are combined into one connection and said connection device identifies the unused connections as a result of said combining as unused connection identifiers.

A routing system for establishing a plurality of connections for each call between a transmission terminal and a reception terminal through a plurality of nodes, prior to transmission of information from said transmission terminal to said reception terminal, and for selecting one connection from among said plurality of connections for each unit of information;

• said routing system comprising:
• a node, said node having a first section where all said connections take different routes, and for establishing said connections without changing the routes, and a second section where at least two connections that take the same route and for combining said connections that take the same route into one connection;
• and
• a connecting device, provided at said node, for making arbitrary connections between a first connection at an input side of said nodes which is a combined connection or is selected from a plurality of connections, and a second connection at an output side of said node which is a combined connection or is selected from a plurality of connections,
• wherein said connection device includes a mapping unit for mapping the connection identifiers of said first connection and said second connection wherein said second connection is already set up for a destination which is the same as that of said first connection and for setting up each plurality of connections as a combined connection.