公开(公告)号：US20210044476A1

公开(公告)日：2021-02-11

申请号：US17076854

申请日：2020-10-22

申请人： ALLOT LTD.

发明人： Itai Ephraim Zilbershtein ,  Nimrod Dezent ,  Alon Hazay ,  Itai Weissman ,  Boris Lifshitz

IPC分类号： H04L12/24 ,  H04L29/12 ,  H04L12/26 ,  H04L12/851 ,  H04L12/947

摘要： 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.

公开(公告)号：US11323310B2

公开(公告)日：2022-05-03

申请号：US17076854

申请日：2020-10-22

申请人： ALLOT LTD.

发明人： Itai Ephraim Zilbershtein ,  Nimrod Dezent ,  Alon Hazay ,  Itai Weissman ,  Boris Lifshitz

IPC分类号： H04L12/24 ,  H04L12/947 ,  H04L41/0668 ,  H04L41/0806 ,  H04L61/10 ,  H04L61/5007 ,  H04L47/24 ,  H04L49/25 ,  H04L43/0829

摘要： 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.