The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 30, 2014

Filed:

Jan. 14, 2010
Applicants:

Juha-petteri Nieminen, Espoo, FI;

Mika Silvola, Kempele, FI;

Mikko Laulainen, Helsinki, FI;

Inventors:

Juha-Petteri Nieminen, Espoo, FI;

Mika Silvola, Kempele, FI;

Mikko Laulainen, Helsinki, FI;

Assignee:

Tellabs Oy, Espoo, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/42 (2006.01);
U.S. Cl.
CPC ...
H04L 12/42 (2013.01);
Abstract

In a system, the functionality is decentralized in a data transmission network so that the need of communications produced by and addressed to data terminals to pass by way of a single point in the data transmission network is diminished. A first data transmission installation is adapted to signal second data transmission installations, each of which is part of a ring-shaped data transmission topology, to be capable of building logical data transmission tunnels directed to the data terminals. Thereby, all the logical data transmission tunnels need not commence or, depending on the direction, terminate at the same point of a data transmission network. In addition, the data transmission installations present in a ring-shaped data transmission topology need not necessarily be taught routing information in order to enable each of these data transmission installations to send data transmission frames to be transmitted to another one of these data transmission installations.


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