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:
May. 29, 2012
Filed:
Dec. 17, 2007
Bakul Khanna, Lexington, MA (US);
William A. Miller, Iii, Groton, MA (US);
Jozef Babiarz, Kanata, CA;
Bakul Khanna, Lexington, MA (US);
William A. Miller, III, Groton, MA (US);
Jozef Babiarz, Kanata, CA;
Avaya Inc., Basking Ridge, NJ (US);
Abstract
An embodiment of the present invention includes a technique to provide anti-replay protection with QoS queues. A single global anti-replay window is maintained to have global lowest and highest sequence numbers for an Internet protocol security (IPSec) security association (SA). The single global anti-replay window is associated with individual differentiated services code point (DSCP) or DSCP group, the individual DSCP or DSCP group corresponding to individual per-DSCP anti-replay windows. A received packet having a sequence number is pre-processed before packet processing using the single global anti-replay window. The received packet is post-processed after packet processing using the individual per-DSCP anti-replay windows.