公开(公告)号：US11902146B1

公开(公告)日：2024-02-13

申请号：US17446568

申请日：2021-08-31

Applicant: Juniper Networks, Inc.

Inventor： Dennis Gordon Montgomery ,  Anna Yungelson

IPC: H04L12/18 ,  H04L12/46 ,  H04L45/122 ,  H04L45/12 ,  H04L9/32 ,  H04L45/24 ,  H04L45/745 ,  H04L45/00

CPC classification number: H04L45/122 ,  H04L9/3242 ,  H04L45/126 ,  H04L45/22 ,  H04L45/24 ,  H04L45/745

Abstract: Techniques are disclosed for identifying a maximum segment size (MSS) for a path. For example, a first router includes a routing engine and a packet forwarding engine. The routing engine is configured to identify a path maximum transmission unit (MTU) corresponding to a path between the first router and a second router; and identify a maximum packet overhead size corresponding to a session between a first client device and a second client device over the path between the first router and the second router. Additionally, the routing engine is configured to calculate, based on the path MTU and the maximum packet overhead size, a path maximum segment size (MSS), wherein the path MSS represents a maximum packet payload size corresponding to the path; and control the packet forwarding engine to output information indicative of the path MSS.

公开(公告)号：US11799779B1

公开(公告)日：2023-10-24

申请号：US17452533

申请日：2021-10-27

Applicant: Juniper Networks, Inc.

Inventor： Anna Yungelson ,  Dennis Gordon Montgomery ,  Kaushik Adesh Agrawal

IPC: H04L45/745 ,  H04L45/00 ,  H04L67/142 ,  H04L45/12 ,  H04L67/561

CPC classification number: H04L45/745 ,  H04L45/123 ,  H04L45/38 ,  H04L45/566 ,  H04L67/142 ,  H04L67/561

Abstract: Techniques are disclosed for generating session-specific packet capture records. In one example, a first network device receives a first packet of a session between first and second client devices, the session comprising forward and reverse packet flows. The first network device modifies the first packet to include metadata comprising a packet capture indicator that indicates whether packet capture is to be performed for the session. The first network device stores at least a portion of the first packet and each subsequent packet of the session and forwards the modified first packet. A second network device receives the modified first packet and, based on the packet capture indicator, stores at least a portion of the first packet and each subsequent packet of the session in a session-specific packet capture record. The first and second network devices may generate, from the stored packet data, a packet capture record for the session.