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:
Nov. 15, 2011
Filed:
Jul. 31, 2008
Faisal Mushtaq, Santa Clara, CA (US);
Sitaram Dontn, Sunnyvale, CA (US);
Shreeram Bhide, San Jose, CA (US);
Ali Golshan, Palo Alto, CA (US);
Michael R. Smith, Morgan Hill, CA (US);
Faisal Mushtaq, Santa Clara, CA (US);
Sitaram Dontn, Sunnyvale, CA (US);
Shreeram Bhide, San Jose, CA (US);
Ali Golshan, Palo Alto, CA (US);
Michael R. Smith, Morgan Hill, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Various methods and systems for detecting whether a network device supports a protocol, which defines a supplemental header, are disclosed. One method involves detecting a value within a preamble generated by a sending device and verifying that a header format of a header, also generated by the sending device, conforms to a header format definition of a protocol. The header format definition of the protocol defines a supplemental header. The preamble can be an Ethernet preamble. In one embodiment, the preamble is a converged data link (CDL) preamble or other type of preamble that is used to convey operation, administration and management (OAM) information.