230000005540 biological transmission Effects 0.000 description 2.238000006011 modification reaction Methods 0.000 description 4.238000006243 chemical reaction Methods 0.000 description 4.238000004590 computer program Methods 0.000 claims description 24.Assignors: NGUYEN, PHUONG THANH, BOOTH, III EARL HARDIN, LINGAFELT, CHARLES STEVEN, TEMOSHENKO, LEO, WANG, XIAOGANG Application granted granted Critical Publication of US6816462B1 publication Critical patent/US6816462B1/en Adjusted expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by International Business Machines Corp filed Critical International Business Machines Corp Priority to US09/630,794 priority Critical patent/US6816462B1/en Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION reassignment INTERNATIONAL BUSINESS MACHINES CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee International Business Machines Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related, expires Application number US09/630,794 Inventor Earl Hardin Booth, III Charles Steven Lingafelt Phuong Thanh Nguyen Leo Temoshenko Xiaogang Wang Current Assignee (The listed assignees may be inaccurate. Google Patents System and method to determine connectivity of a VPN secure tunnelÄownload PDF Info Publication number US6816462B1 US6816462B1 US09/630,794 US63079400A US6816462B1 US 6816462 B1 US6816462 B1 US 6816462B1 US 63079400 A US63079400 A US 63079400A US 6816462 B1 US6816462 B1 US 6816462B1 Authority US United States Prior art keywords network element tunnel connectivity network connectivity test Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US6816462B1 - System and method to determine connectivity of a VPN secure tunnel US6816462B1 - System and method to determine connectivity of a VPN secure tunnel
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