公开(公告)号：US20220294717A1

公开(公告)日：2022-09-15

申请号：US17198298

申请日：2021-03-11

Applicant: MELLANOX TECHNOLOGIES TLV LTD.

Inventor： Alan Lo ,  Matty Kadosh ,  Marian Pritsak ,  Yonatan Piasetsky

IPC: H04L12/26 ,  H04W24/08

Abstract: In one embodiment, a system includes a first data communication device including packet processing circuitry to provide a probe packet including an egress timestamp TS1 indicating a time at which the probe packet egresses the first data communication device, and a network interface to send the probe packet via at least one network connection to a second data communication device, and receive from the second data communication device a response packet including the egress timestamp TS1, wherein the packet processing circuitry is configured to associate with the response packet an ingress timestamp TS2 indicating a time at which the response packet ingresses the first data communication device, and a network metric processor to compute a data latency in the at least one network connection responsively to TS1, TS2, and an indication of an internal latency of the probe packet in the second data communication device.

公开(公告)号：US20200162421A1

公开(公告)日：2020-05-21

申请号：US16194343

申请日：2018-11-18

Applicant: MELLANOX TECHNOLOGIES TLV LTD.

Inventor： Alan Lo ,  Matty Kadosh ,  Otniel Van Handel ,  Yonatan Piasetzky ,  Marian Pritsak ,  Omer Shabtai

IPC: H04L29/12 ,  H04L29/08

Abstract: A method including providing: a switching device including a main mapping unit configured to provide a main mapping which maps virtual addresses to direct addresses; management logic configured to store a connection tracking table stored in memory and configured for storing a plurality of connection mappings each including a virtual-to-direct mapping from a virtual address to a direct address; and a migrated connection table stored in memory and configured for storing a plurality of migrated connection mappings each including a virtual-to-migrated-direct mapping from a virtual address to a migrated direct address. Upon receiving an indication that a direct address has changed: when the indication that a direct address has changed includes an indication that a direct address stored in one or more connection mappings in the connection tracking table is not active, copying the one or more connection mappings from the connection tracking table to the migrated connection table, when the indication that a direct address has changed includes an indication that a new direct address has become active, creating one or more connection mappings in the migrated connection table, and altering the main mapping in accordance with the direct address change.

公开(公告)号：US11711283B2

公开(公告)日：2023-07-25

申请号：US17198298

申请日：2021-03-11

Applicant: MELLANOX TECHNOLOGIES TLV LTD.

Inventor： Alan Lo ,  Matty Kadosh ,  Marian Pritsak ,  Yonatan Piasetsky

IPC: H04L43/0864 ,  H04W24/08 ,  H04L43/106

CPC classification number: H04L43/0864 ,  H04L43/106 ,  H04W24/08

Abstract: In one embodiment, a system includes a first data communication device including packet processing circuitry to provide a probe packet including an egress timestamp TS1 indicating a time at which the probe packet egresses the first data communication device, and a network interface to send the probe packet via at least one network connection to a second data communication device, and receive from the second data communication device a response packet including the egress timestamp TS1, wherein the packet processing circuitry is configured to associate with the response packet an ingress timestamp TS2 indicating a time at which the response packet ingresses the first data communication device, and a network metric processor to compute a data latency in the at least one network connection responsively to TS1, TS2, and an indication of an internal latency of the probe packet in the second data communication device.