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:
Jan. 26, 2010
Filed:
Aug. 16, 2002
Thomas Eric Ryle, Raleigh, NC (US);
Sanjeev Rampal, Cary, NC (US);
Jimmy Philip Ervin, Raleigh, NC (US);
Charles Allen Carriker, Jr., Cary, NC (US);
Russell Eugene Gardo, Raleigh, NC (US);
Thomas Eric Ryle, Raleigh, NC (US);
Sanjeev Rampal, Cary, NC (US);
Jimmy Philip Ervin, Raleigh, NC (US);
Charles Allen Carriker, Jr., Cary, NC (US);
Russell Eugene Gardo, Raleigh, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and system for emulating an Ethernet link over a Sonet path to provide link integrity is disclosed. The method generally includes receiving an error code at a local Ethernet port upon detection of a link failure at a remote Ethernet port. The error code is received over a Sonet path in a Sonet path overhead. If the error code is still present after a specified period of time, the local Ethernet port is disabled. Methods for providing link stability and link availability are also disclosed.