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Patent Title: Apparatus and method for setting A/C bits in token ring frames for switches

Assignee: IBM
Patent Number: US6266336
Issue Date: 07-24-2001
Application Number:
File Date:02-18-1998

Abstract: An apparatus for use in token ring switches for selectively setting the A/C bits in token ring frames. The apparatus includes a database with addresses of stations on the ring connected to the port. The apparatus compares the destination addresses of frames received from the ring with the addresses in the database and sets the A/C bits only if a match does not occur. By setting the A/C bits selectively, by the port, errors that would otherwise occur, either by setting the A/C bits on all frames or not setting the bits on all frames, are obviated.


Link to USPTO

IBM Pledge dated 1/11/2005