公开(公告)号：US12261780B2

公开(公告)日：2025-03-25

申请号：US17688994

申请日：2022-03-08

Applicant: Cisco Technology, Inc.

Inventor： Changhong Shen ,  Chingsung Lin ,  Yubei Cao ,  Sandy X. Chang

IPC: H04L47/22 ,  H04L9/40 ,  H04L47/27 ,  H04L47/34

Abstract: In one embodiment, a method includes receiving, by a network node, a packet associated with a session. The method also includes performing, by the network node, a sequence-based anti-replay check and determining, by the network node, that the sequence-based anti-replay check rejected the packet. The method further includes performing, by the network node, a time-based anti-replay check, performing, by the network node, a selective anti-replay check, and determining, by the network node, whether to dynamically adjust a time-based anti-replay window size.

公开(公告)号：US20230188469A1

公开(公告)日：2023-06-15

申请号：US17688994

申请日：2022-03-08

Applicant: Cisco Technology, Inc.

Inventor： Changhong Shen ,  Chingsung Lin ,  Yubei Cao ,  Sandy X. Chang

IPC: H04L47/22 ,  H04L47/34 ,  H04L47/27 ,  H04L9/40

CPC classification number: H04L47/225 ,  H04L47/27 ,  H04L47/34 ,  H04L63/0227

Abstract: In one embodiment, a method includes receiving, by a network node, a packet associated with a session. The method also includes performing, by the network node, a sequence-based anti-replay check and determining, by the network node, that the sequence-based anti-replay check rejected the packet. The method further includes performing, by the network node, a time-based anti-replay check, performing, by the network node, a selective anti-replay check, and determining, by the network node, whether to dynamically adjust a time-based anti-replay window size.