公开(公告)号：US11516133B2

公开(公告)日：2022-11-29

申请号：US16920993

申请日：2020-07-06

Applicant: Nokia Solutions and Networks OY

Inventor： Hyunseok Chang ,  Fang Hao ,  Muralidharan Kodialam ,  T. V. Lakshman ,  Sarit Mukherjee ,  Limin Wang

IPC: H04L12/747 ,  H04L12/721 ,  G06F12/0802 ,  H04L12/743 ,  H04L12/931 ,  H04L45/74 ,  H04L45/7453 ,  H04L49/00 ,  H04L45/00

Abstract: Packet-processing circuitry including one or more flow caches whose contents are managed using a cache-entry replacement policy that is implemented based on one or more updatable counters maintained for each of the cache entries. In an example embodiment, the implemented policy enables the flow cache to effectively catch and keep elephant flows by giving to the caught elephant flows appropriate preference in terms of the cache dwell time, which can beneficially improve the overall cache-hit ratio and/or packet-processing throughput. Some embodiments can be used to implement an Open Virtual Switch (OVS). Some embodiments are advantageously capable of implementing the cache-entry replacement policy with very limited additional memory allocation.

公开(公告)号：US11115324B2

公开(公告)日：2021-09-07

申请号：US16552437

申请日：2019-08-27

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Adiseshu Hari ,  T. V. Lakshman

IPC: H04L12/723 ,  H04L12/715 ,  H04L12/947 ,  H04L12/721 ,  H04L12/741

Abstract: A method for controlling packet routing in a network includes identifying segment identifications (IDs) for a number of switches and arranging a first number of the segment IDs into a multi-protocol label switching (MPLS) label field. The method further includes identifying an output port of a respective one of the number of switches located along a network path between source and destination nodes. The switches may route the packet based on corresponding ones of the segment IDs in the MPLS label field. In performing this routing operation, each switch may modify the MPLS label field with remaining ones of the segment IDs that have been shifted in position and padded with zeros, after the segment ID corresponding to the switch has been popped from the MPLS label field. The method therefore presents a technique for performing segment routing through network equipment designed to support MPLS routing.

公开(公告)号：US11811801B2

公开(公告)日：2023-11-07

申请号：US16999548

申请日：2020-08-21

Applicant: Nokia Solutions and Networks Oy

Inventor： Hyunseok Chang ,  Muralidharan Kodialam ,  T. V. Lakshman ,  Sarit Mukherjee

IPC: G06F21/00 ,  H04L9/40 ,  G06F11/34 ,  G06F18/214 ,  G06N3/044

CPC classification number: H04L63/1425 ,  G06F11/3409 ,  G06F18/214 ,  G06N3/044 ,  H04L63/0227 ,  H04L63/1441

Abstract: System, method, and software for detecting anomalies in data generated by microservices. In one embodiment, an anomaly detector collects performance metrics for a microservice deployed in a data center for an application. The anomaly detector transforms the performance metrics into a time-series structured dataset for the microservice, and feeds the structured dataset to a machine learning system to determine whether an anomaly exists in the structured dataset based on an anomaly detection model. The anomaly detector performs an anomaly classification with the machine learning system based on an anomaly classification model and the structured dataset when an anomaly is detected in the structured dataset, and performs an action based on the anomaly classification.