公开(公告)号：US11496235B2

公开(公告)日：2022-11-08

申请号：US17247881

申请日：2020-12-29

Applicant: Juniper Networks, Inc.

Inventor： Prabhu Raj V. K. ,  Kamatchi Soundaram Gopalakrishnan ,  M. Ramana Reddy

IPC: H04L45/24 ,  H04J3/06 ,  H04L41/12 ,  H04L47/24

Abstract: A network device may assign, to a port of a plurality of ports on the network device, a precision timing protocol (PTP) port priority for PTP communications between the network device and another network device. The network device and the other network device may be communicatively connected via a plurality of links in a link aggregation group (LAG). Each port, of the plurality of ports, may be associated with a respective link, of the plurality of links, in the LAG. The network device may generate a link layer discovery protocol (LLDP) frame that includes information identifying the PTP port priority assigned to the port. The network device may transmit the LLDP frame to the other network device to identify, to the other network device, the PTP port priority.

公开(公告)号：US09760114B1

公开(公告)日：2017-09-12

申请号：US14146830

申请日：2014-01-03

Applicant: Juniper Networks, Inc.

Inventor： Kamatchi Soundaram Gopalakrishnan

IPC: H04L7/00 ,  H04B17/00 ,  G06F1/12 ,  G06F15/16

CPC classification number: G06F1/12

Abstract: A computer-implemented method for improving clock synchronization between master and slave devices may include receiving at least one clock-synchronization packet transferred from a master device to a slave device via a network that supports an IP. The method may also include identifying at least one item of IP information added to the clock-synchronization packet during the transfer from the master device to the slave device. The method may further include determining that the clock-synchronization packet experienced a delay that exceeds a predetermined threshold during the transfer based at least in part on the item of IP information. Finally, the method may include discarding the clock-synchronization packet from a set of clock-synchronization packets capable of being used to synchronize the slave device with the master device in response to the determination. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US10423190B1

公开(公告)日：2019-09-24

申请号：US15670280

申请日：2017-08-07

Applicant: Juniper Networks, Inc.

Inventor： Kamatchi Soundaram Gopalakrishnan

IPC: H04L7/00 ,  H04B17/00 ,  G06F1/12 ,  G06F15/16

Abstract: A computer-implemented method for improving clock synchronization between master and slave devices may include receiving at least one clock-synchronization packet transferred from a master device to a slave device via a network that supports an IP. The method may also include identifying at least one item of IP information added to the clock-synchronization packet during the transfer from the master device to the slave device. The method may further include determining that the clock-synchronization packet experienced a delay that exceeds a predetermined threshold during the transfer based at least in part on the item of IP information. Finally, the method may include discarding the clock-synchronization packet from a set of clock-synchronization packets used to synchronize the slave device with the master device in response to the determination. Various other methods, systems, and computer-readable media are also disclosed.