Determining the path of user datagram protocol (UDP) traceroute probes

Patent metadata

Field	Value
Publication number	US-11949577-B2
Application number	US-202318317733-A
Country	US
Kind code	B2
Filing date	May 15, 2023
Priority date	Jan 14, 2021
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

Techniques for determining the path of User Datagram Protocol (UDP) traceroute probes using Transmission Control Protocol (TCP) and Internet Control Message Protocol (ICMP). Various embodiments include sending a plurality of probes to one or more legs in a network path; obtaining measurements from each of the plurality of probes for each of the one or more legs in the network path; and performing one or more actions based on the measurements from each of the plurality of probes. The steps further include overlapping the measurements to determine latency to a destination and identifying throttling of UDP traffic based on the overlapping of measurements from the plurality of probes.

First claim

What is claimed is:

1. A non-transitory computer-readable medium comprising instructions that, when executed, cause one or more processors to perform steps of:
sending a plurality of probes to one or more legs in a network path, wherein the plurality of probes are sent using a plurality of protocols;
obtaining measurements from each of the plurality of probes for each of the one or more legs in the network path; and
performing one or more actions based on the measurements from each of the plurality of probes.

2. The non-transitory computer-readable medium of claim 1 , wherein the plurality of protocols include any of Transmission Control Protocol (TCP), Internet Control Message Protocol (ICMP), and User Datagram Protocol (UDP).

3. The non-transitory computer-readable medium of claim 1 , wherein the steps further comprise:
responsive to obtaining measurements from each of the plurality of probes, overlapping the measurements to determine latency to a destination.

4. The non-transitory computer-readable medium of claim 3 , wherein the steps further comprise:
identifying throttling of User Datagram Protocol (UDP) traffic based on the overlapping of measurements from the plurality of probes.

5. The non-transitory computer-readable medium of claim 1 , wherein the steps further comprise:
determining a degradation on a penultimate leg of the network path; and
one or more of providing a notification to a user of the degradation and causing a remedial action based on the degradation.

6. The non-transitory computer-readable medium of claim 1 , wherein the network path is between a client and a User Datagram Protocol (UDP) endpoint.

7. A method comprising steps of:
sending a plurality of probes to one or more legs in a network path, wherein the plurality of probes are sent using a plurality of protocols;
obtaining measurements from each of the plurality of probes for each of the one or more legs in the network path; and
performing one or more actions based on the measurements from each of the plurality of probes.

8. The method of claim 7 , wherein the plurality of protocols include any of Transmission Control Protocol (TCP), Internet Control Message Protocol (ICMP), and User Datagram Protocol (UDP).

9. The method of claim 7 , wherein the steps further comprise:
responsive to obtaining measurements from each of the plurality of probes, overlapping the measurements to determine latency to a destination.

10. The method of claim 9 , wherein the steps further comprise:
identifying throttling of User Datagram Protocol (UDP) traffic based on the overlapping of measurements from the plurality of probes.

11. The method of claim 7 , wherein the steps further comprise:
determining a degradation on a penultimate leg of the network path; and
one or more of providing a notification to a user of the degradation and causing a remedial action based on the degradation.

12. The method of claim 7 , wherein the network path is between a client and a User Datagram Protocol (UDP) endpoint.

13. A method comprising steps of:
sending a plurality of probes to one or more legs in a network path;
obtaining measurements from each of the plurality of probes for each of the one or more legs in the network path;
performing one or more actions based on the measurements from each of the plurality of probes;
responsive to obtaining measurements from each of the plurality of probes, overlapping the measurements to determine latency to a destination; and
identifying throttling of User Datagram Protocol (UDP) traffic based on the overlapping of measurements from the plurality of probes.

14. The method of claim 13 , wherein the plurality of probes are sent using a plurality of protocols.

15. The method of claim 14 , wherein the plurality of protocols include any of Transmission Control Protocol (TCP), Internet Control Message Protocol (ICMP), and User Datagram Protocol (UDP).

16. The method of claim 13 , wherein the steps further comprise:
determining a degradation on a penultimate leg of the network path; and
one or more of providing a notification to a user of the degradation and causing a remedial action based on the degradation.

17. The method of claim 13 , wherein the network path is between a client and a User Datagram Protocol (UDP) endpoint.

Assignees

• Zscaler Inc

Inventors

• Balaiah Chakkaravarthy Periyasamy
• Kamath Sandeep
• Devarajan Srikanth
• Chhabra Pankaj

Classifications

• H04L43/10 Primary

  Active monitoring, e.g. heartbeat, ping or trace-route · CPC title

• H04L47/12

  Avoiding congestion; Recovering from congestion · CPC title

• H04L43/0858 Primary

  One way delays · CPC title

• H04L12/4633

  Interconnection of networks using encapsulation techniques, e.g. tunneling · CPC title

• H04L41/0894

  Policy-based network configuration management · CPC title