Network monitoring system, network monitoring method, and program

Patent metadata

Field	Value
Publication number	US-11582086-B2
Application number	US-201917260743-A
Country	US
Kind code	B2
Filing date	Aug 7, 2019
Priority date	Aug 15, 2018
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

In the present disclosure, a network monitoring system is provided including an IP network monitoring unit (610) that monitors an IP network to which an IP device is connected; and a non-IP device monitoring unit (630) that monitors a non-IP device. It is possible to monitor both the IP network and the non-IP device in a system that includes the IP network including the IP device and the non-IP device.

First claim

The invention claimed is:

1. A network monitoring system, comprising:
Internet Protocol (IP) network monitoring circuitry configured to monitor an IP network to which a plurality of IP devices is connected, the plurality of IP devices in the IP network being configured to communicate via the IP protocol, wherein the IP network monitoring circuitry is further configured to extract a first failure that has occurred in the IP network according to a first pre-classified primary isolation cause, and extract a root cause of the first failure based on the first primary isolation cause; and
non-IP device monitoring circuitry configured to monitor a non-IP device using particular data of the non-IP device received via the IP network and the IP network monitoring circuitry, wherein the non-IP device is not configured to communicate via the IP protocol with any IP device connected to the IP network, and the non-IP device monitoring circuitry is further configured to extract, using the received particular data of the non-IP device, a second failure that has occurred in the non-IP device according to a second pre-classified primary isolation cause, and extract a root cause of the second failure based on the second primary isolation cause.

2. The network monitoring system according to claim 1 , wherein the IP network monitoring circuitry includes IP device monitoring circuitry configured to monitor an IP device in the IP network, and IP switch monitoring circuitry configured to monitor a software defined network (SDN) IP switch of the IP network.

3. The network monitoring system according to claim 1 , wherein the IP network monitoring circuitry is further configured to extract, as the first primary isolation cause, at least one of a failure of video information in the IP network, a failure of control information in the IP network, and a failure of synchronization information of an IP device in the IP network.

4. The network monitoring system according to claim 1 , wherein the IP network monitoring circuitry is further configured to extract, as the root cause of the first failure, at least one of a failure of a cable provided in the IP network, a failure of an IP switch in the IP network, and a failure of an IP device in the IP network.

5. The network monitoring system according to claim 1 , wherein the IP network monitoring circuitry is further configured to extract a solution to the first failure that has occurred in the IP network by performing a detection for the extracted root cause of the first failure.

6. The network monitoring system according to claim 1 , wherein the IP network monitoring circuitry is further configured to monitor the IP network by visualizing a flow of the IP network on a per-flow basis.

7. The network monitoring system according to claim 6 , wherein the IP network monitoring circuitry is further configured to determine the flow based on at least one of information collected from a system controller, information set by a user, and information collected from an application for specifying the flow.

8. The network monitoring system according to claim 7 , wherein the IP network monitoring circuitry is further configured to acquire and visualize, for the determined flow, statistical information of the flow by an SDN function configured to acquire the statistical information of the flow or a function of performing detailed analysis of packets obtained by a packet capture device.

9. The network monitoring system according to claim 1 , wherein the non- 1 P device monitoring circuitry is further configured to extract a solution to the second failure that has occurred in the non-IP device by performing a detection for the extracted root cause of the second failure.

10. The network monitoring system according to claim 1 , further comprising:
system failure automatic detection circuitry configured to constantly detect system failures in the IP network; and
designated-failure detection circuitry configured to designate an operation of a specific IP device in the IP network to detect a particular failure.

11. The network monitoring system according to claim 10 , wherein the system failure automatic detection circuitry is further configured to detect at least one of a failure related to a connection port in the IP network, a failure related to a network cable, a failure related to an IP switch in the IP network, a failure related to duplicate IP addresses, a failure related to bandwidth, and a failure related to unknown traffic.

12. The network monitoring system according to claim 10 , wherein the system failure automatic detection circuitry or the designated-failure detection circuitry is further configured to add a flow for monitoring when there is a flow that cannot be monitored in the IP network.

13. The network monitoring system according to claim 12 , wherein the designated-failure detection circuitry is further configured to designate the operation by designating from a UI of a failure analysis function, notifying with an API call from a system controller, or identifying by performing analysis using the failure analysis function, and collate whether or not the designated operation is performed with the IP device and the IP network, to detect the particular failure.

14. The network monitoring system according to claim 13 , wherein the detection of the particular failure based on the designated operation is performed by the IP network monitoring circuitry and the non-IP device monitoring circuitry.

15. The network monitoring system according to claim 11 , wherein the system failure automatic detection circuitry is further configured to constantly monitor an ARP and an ARP reply, and hold a list of IP addresses/MACS in use, and the system failure automatic detection circuitry is further configured to detect, when an IP address in use is in use for another device, a failure related to the duplicate IP addresses.

16. A network monitoring method, comprising:
monitoring, by IP network monitoring circuitry, an IP network to which a plurality of IP devices is connected, the plurality of IP devices in the IP network being configured to communicate via the IP protocol, wherein the monitoring by the IP network monitoring circuitry further comprises extracting a first failure that has occurred in the IP network according to a first pre-classified primary isolation cause, and extracting a root cause of the first failure based on the first primary isolation cause; and
monitoring, by non-IP network monitoring circuitry, a non-IP device using particular data of the non-IP device received via the IP network and the IP network monitoring circuitry, wherein the non-IP device is not configured to communicate via the IP protocol with any IP device connected to the IP network, and the monitoring by the non-IP device monitoring circuitry further comprises extracting, using the received particular data of the non-IP device, a second failure that has occurred in the non-IP device according to a second pre-classified primary isolation cause, and extracting a root cause of the second failure based on the second primary isolation cause.

17. A network monitoring method for a transmission system in which AV signals are converted into IP packets, the network monitoring method comprising:
monitoring, by IP network monitoring circuitry, an IP network to which a plurality of IP devices is connected, the plurality of IP devices in the IP network being configured to communicate via the IP protocol wherein the monitoring by the IP network monitoring circuitry further comprises extracting a first failure that has occurred in

Assignees

• Sony Corp

Inventors

• RANATUNGA Vijitha Sanjeewa
• Kure Yoshinobu
• Kosaka Yoshihiro
• Choki Yuta
• Yu Chuan

Classifications

• H04L43/20

  the monitoring system or the monitored elements being virtualised, abstracted or software-defined entities, e.g. SDN or NFV · CPC title

• H04L43/08

  Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters · CPC title

• H04L41/122

  of virtualised topologies, e.g. software-defined networks [SDN] or network function virtualisation [NFV] · CPC title

• H04L41/40

  using virtualisation of network functions or resources, e.g. SDN or NFV entities · CPC title

• H04L41/342

  between virtual entities, e.g. orchestrators, SDN or NFV entities · CPC title