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:
Aug. 12, 2008
Filed:
May. 28, 2003
Swarup Acharya, New Providence, NJ (US);
Bhawna Gupta, Edison, NJ (US);
Pankaj Risbood, Roselle, NJ (US);
Anurag Srivastava, Roselle, NJ (US);
Swarup Acharya, New Providence, NJ (US);
Bhawna Gupta, Edison, NJ (US);
Pankaj Risbood, Roselle, NJ (US);
Anurag Srivastava, Roselle, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Techniques are disclosed for restoration of virtually-concatenated data traffic in a data transmission network. A virtually-concatenated group is formed comprising: (i) a plurality of primary members each associated with a corresponding data stream, and (ii) at least one backup member. Each of the plurality of primary members and the backup member of the virtually-concatenated group may be assigned a corresponding one of a plurality of data transmission routes between first and second nodes of the network. Responsive to a failure of a given one of the plurality of primary members, the backup member is utilized for restoring at least a portion of the data traffic of the given member. The invention also provides a modified link capacity adjustment scheme (LCAS) protocol which substantially reduces the time required to report changes in member status information from a sink node to a source node, thereby substantially reducing the amount of time required to perform a restoration operation.