公开(公告)号：US20190068470A1

公开(公告)日：2019-02-28

申请号：US15692709

申请日：2017-08-31

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04L12/26 ,  H04L12/24

Abstract: Understanding the performance of a Service Function Chain (SFC) and how Virtual Network Functions (VNFs) contribute to the performance of the SFC can assist in the maintenance of services and quality of experience the VNFs are expected to provide. In an exemplary embodiment, a residence time of packets traversing a service function or virtual network function is measured. The residence time characterizes the processing delay a service function introduces into a network.

公开(公告)号：US20200084522A1

公开(公告)日：2020-03-12

申请号：US16127213

申请日：2018-09-10

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04Q9/02 ,  H04L12/801 ,  H04L12/26

Abstract: The disclosed techniques can collect and transport telemetry information on-path when a packet of a service flow traverses a communication network. The collected telemetry information can be analyzed to identify potential issues experienced by a user of a service and simplify the association of data with the service. Thus, apparatuses, methods, computer readable media, and systems are disclosed for an on-path collection and transportation of telemetry information in a communication network.

公开(公告)号：US20200044964A1

公开(公告)日：2020-02-06

申请号：US16601569

申请日：2019-10-14

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04L12/723

Abstract: This disclosure addresses improving the reliability of network connections between nodes, detection of failures of network connections, and the reduction of control packets exchanged between nodes. A second node may stop sending control packets to a first node causing a reduction in network throughput and increased network capacity. The network connection from the first node to the second may be of a first type and the connection from the second node to the first node may be of a second type. When a failure of the connection of the first type occurs, communication of the failure may be sent in a flag from the second node to the first node using the second type. A response to the flag received at the first node may be sent to the second node. The response may be sent using the second type of network connection because the first type failed.

公开(公告)号：US20190273813A1

公开(公告)日：2019-09-05

申请号：US15912512

申请日：2018-03-05

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04L29/06 ,  H04L12/741 ,  H04L12/803 ,  H04L12/801

Abstract: A packet communication method that generates a header that includes information to route a packet through a ring communication network is described. The header can include a target node identifier that identifies a target node to which the packet is to travel, and a direction identifier that identifies a direction to be traversed by the packet through the ring communication network. In some embodiments, the direction indicated by the direction identifier can be clockwise or counter-clockwise relative to a starting node from which the packet is to travel.

公开(公告)号：US20220014453A1

公开(公告)日：2022-01-13

申请号：US16926540

申请日：2020-07-10

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04L12/26 ,  H04L12/24

Abstract: Techniques are described for performing error performance measurement in a packet data communication network such as a packet switching network (PSN). An example method of error performance measurement includes determining, upon expiration of a time period, that a number of one or more test packets received by the first device during the time period is less than an expected number of test packets, where the one or more test packets are received by the first device from the second device in a packet data communication network, and triggering, based on the determining, an error performance measurement that includes evaluating a type of failure for the time period and evaluating one or more types of failures for one or more consecutive time periods that immediately precede the time period.

公开(公告)号：US20190268256A1

公开(公告)日：2019-08-29

申请号：US15908636

申请日：2018-02-28

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04L12/26

Abstract: A first network node generates a message to be transmitted to a second network node. The message can include a value that identifies a type of the operational session, an identifier of the first network node that can control transmission of packets used during the operational session, and a length of the identifier. Further, the first and second network nodes can operate in an operational session in which the second network node can detect a failure.

公开(公告)号：US20190097908A1

公开(公告)日：2019-03-28

申请号：US15716110

申请日：2017-09-26

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04L12/26

Abstract: Residence time is a variable part of the propagation delay of the packet. Information about the propagation delay for each transient node can be used as performance metric to calculate the Traffic Engineered route that can conform to delay and delay variation requirements. In an exemplary embodiment, a computing device uses special test packets to measure residence time. The computing device calculates routes to direct special test packets to one or more nodes. A node may calculate the residence time metric, such as a residence time variation (RTV), or residence time (RT) per ordered set of ingress and egress interfaces of the node. The computing device may also collect the residence time metric per test set from each node and may use this information to calculate the Test Engineered route.

公开(公告)号：US11509561B2

公开(公告)日：2022-11-22

申请号：US17152062

申请日：2021-01-19

Applicant: ZTE Corporation

Inventor： Gregory Mirsky ,  Min Xiao

IPC: H04L43/10 ,  H04L43/0829 ,  H04L43/0852

Abstract: Techniques are described for generating and using an extended Bi-directional Forwarding Detection (BFD) control packet in a network. The extended BFD control packet includes a control message that includes a BFD session information, an identifier associated with the device sending the BFD control packet, and a payload part. The extended BFD control packet may be used to perform packet loss and/or packet delay related measurements.

公开(公告)号：US11303551B2

公开(公告)日：2022-04-12

申请号：US16926540

申请日：2020-07-10

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04L43/0829 ,  H04L41/0631 ,  H04L43/50

Abstract: Techniques are described for performing error performance measurement in a packet data communication network such as a packet switching network (PSN). An example method of error performance measurement includes determining, upon expiration of a time period, that a number of one or more test packets received by the first device during the time period is less than an expected number of test packets, where the one or more test packets are received by the first device from the second device in a packet data communication network, and triggering, based on the determining, an error performance measurement that includes evaluating a type of failure for the time period and evaluating one or more types of failures for one or more consecutive time periods that immediately precede the time period.

公开(公告)号：US10979787B2

公开(公告)日：2021-04-13

申请号：US16127213

申请日：2018-09-10

Applicant: ZTE Corporation

Inventor： Gregory Mirsky

IPC: H04Q9/02 ,  H04L12/26 ,  H04L12/801

Abstract: The disclosed techniques can collect and transport telemetry information on-path when a packet of a service flow traverses a communication network. The collected telemetry information can be analyzed to identify potential issues experienced by a user of a service and simplify the association of data with the service. Thus, apparatuses, methods, computer readable media, and systems are disclosed for an on-path collection and transportation of telemetry information in a communication network.