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.
Patent No.:
Date of Patent:
Dec. 13, 2005
Filed:
Oct. 13, 1999
Robin Parry, Watford, GB;
Justin a Drummond-murray, Chorleywood, GB;
David J Law, Kempston, GB;
Daniel M O'keeffe, Ballyhooly, IE;
Robin Parry, Watford, GB;
Justin A Drummond-Murray, Chorleywood, GB;
David J Law, Kempston, GB;
Daniel M O'Keeffe, Ballyhooly, IE;
3Com Technologies, Georgetown, KY;
Abstract
An Ethernet data packet including a VLAN tag header and a VLAN identification field is modified. The modification is accomplished by inserting in place of the VLAN tag header a field of the same size including selected information. The VLAN identification may be retained. The inserted field may include a first field indicating the presence of the VLAN identification field and a second field of selected information, the second field being longer than the first field.