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:
Jul. 23, 2024

Filed:

Oct. 21, 2021
Applicant:

Beckhoff Automation Gmbh, Verl, DE;

Inventors:

Holger Büttner, Berlin, DE;

Dirk Janssen, Verl, DE;

Erik Vonnahme, Salzkotten, DE;

Thomas Rettig, Rheda-Wiedenbrück, DE;

Hans Beckhoff, Verl, DE;

Thorsten Bunte, Gütersloh, DE;

Johannes Beckhoff, Schloß Holte-Stukenbrock, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/40 (2006.01); H04L 45/745 (2022.01); H04L 49/00 (2022.01);
U.S. Cl.
CPC ...
H04L 12/40169 (2013.01); H04L 45/745 (2013.01); H04L 49/30 (2013.01);
Abstract

A network distributor has a plurality of input-output ports, a processor unit, and a memory unit. The ports connect network subscribers via a data line network, where the network subscribers include protocol subscribers to process telegrams as protocol telegrams. The processor unit receives telegrams via one port and outputs telegrams via another port, which is stored in a routing table in the memory unit. The processor unit further determines whether a telegram is a protocol telegram received via a port for which no port identifier is stored in the memory unit, and to discard the telegram if so. Checking and discarding of telegrams can be subject to a precondition, where fulfillment of the precondition leads to an exception from discarding the telegram.


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