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. 03, 2022
Filed:
Oct. 22, 2020
Allot Ltd., Hod HaSharon, IL;
Itai Ephraim Zilbershtein, Hod HaSharon, IL;
Nimrod Dezent, Kfar Saba, IL;
Alon Hazay, Ramat HaSharon, IL;
Itai Weissman, Kiryat Ono, IL;
Boris Lifshitz, Kokhav Yair, IL;
ALLOT LTD., Hod Hasharon, IL;
Abstract
Method, device, and system for providing hot reservation for in-line deployed network functions with multiple network interfaces. A system includes a first Network Function (NF) unit, connected to an ingress router and to an egress router; and a second NF unit, connected to the ingress router and to the egress router. The first NF unit is initially configured as a controlling NF. The second NF unit is initially configured as a backup NF. The two NF units periodically exchange keep-alive messages via the two routers. The second NF unit, operating as the backup NF, automatically triggers a switchover if the second NF unit did not receive a keep-alive message from the first NF unit for at least a pre-defined time-period. Additionally or alternatively, the controlling NF initiates a switchover if the maintenance status parameters of the backup NF are better than those of the controlling NF.