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:
Jul. 22, 2014
Filed:
Oct. 22, 2004
Dehua Huang, Fremont, CA (US);
Adam J. Sweeney, Sunnyvale, CA (US);
Pradeep S. Sudame, Fremont, CA (US);
Silviu Dobrota, San Jose, CA (US);
Premkumar Jonnala, Santa Clara, CA (US);
Dehua Huang, Fremont, CA (US);
Adam J. Sweeney, Sunnyvale, CA (US);
Pradeep S. Sudame, Fremont, CA (US);
Silviu Dobrota, San Jose, CA (US);
Premkumar Jonnala, Santa Clara, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Protocol status information is used to perform traffic filtering by dropping messages that are not consistent with the protocol status information. In one embodiment, a method involves comparing message information and protocol status information. The message information is associated with a first message. The protocol status information is obtained in response to one or more second messages, which are conveyed according to a protocol used to assign network addresses to clients. The method also involves determining whether to discard the first message, based on an outcome of the comparison of the message information and the protocol status information. For example, it can be determined that the first message should be discarded, if the message information does not match the protocol status information.