Analysis and testing of network devices

• US 10,263,869 B1
• Filed: 03/16/2015
• Issued: 04/16/2019
• Est. Priority Date: 03/16/2015
• Status: Active Grant

• Current Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Original Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Inventors: Dzierwinski, Kevin Michael
• Primary Examiner(s): Nano, Sargon N
• Application Number:
  US14/659,441
• Time in Patent Office: 1,492 Days
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 41/22 comprising specially adapted graphical user interfaces [GUI]
• CPC Class Codes: H04L 43/0811 by checking connectivity
• CPC Class Codes: H04L 43/10 Active monitoring, e.g. heartbeat, ping or trace-route
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

A network administrator utilizes a user client device to connect to a server within a network and provide a test plan comprises various tests to be performed on pairs of devices having physical connections within the network. The server selects, from the various pairs of devices, a pair of devices that are to be tested. Subsequently, the server transmits to each device of the selected pair of devices, instructions that may cause each device to perform the tests specified within the test plan. Once the tests have been completed, the server obtains the test results from the pair of devices and compiles these results.

Claims

1. A computer-implemented method, comprising:

obtaining, from a user client device, a test plan that specifies a set of tests to be performed to test connections between pairs of devices in a network;

obtaining, from a network topology service, network topology information that specifies physical connections between devices of the pairs of devices in the network;

using the network topology information to select one of the pairs of devices in the network to be a selected pair of devices, the selected pair of devices in the network indicated by the network topology information as having a connection connecting the selected pair of devices;

transmitting instructions to the devices in the selected pair of devices, wherein the instructions, as a result of being executed by the selected pair of devices, cause the set of tests to be performed to test the connection between the selected pair of devices according to the test plan, performance of the set of tests comprising;

activating interfaces of the selected pair of devices to enable communication through the connection;

changing addresses of the interfaces of the selected pair of devices from an initial set of Internet Protocol addresses to a set of test-specific Internet Protocol addresses to the interfaces; and

returning the selected pair of devices to a configuration prior to performing the set of tests at least by resetting addresses of the interfaces of the selected pair of devices to the initial set of Internet Protocol addresses as a result of completing the set of tests;

obtaining test results of the performed set of tests; and

providing, to the user client device, information generated based at least in part on the test results.

2. The computer-implemented method of claim 1, wherein the method further comprises, as a result of the test results indicating one or more errors associated with at least one device of the selected pair of devices, modifying a route table of the at least one device to avoid routing of network traffic over the physical connections.

3. The computer-implemented method of claim 1, wherein the connection is a physical connection connecting the selected pair of devices.

4. The computer-implemented method of claim 3, wherein:

the set of tests include a subset of tests that, when performed, causes the selected pair of devices to determine whether there is a problem with interfaces of the devices in the selected pair of devices or with the physical connections connecting the devices in the selected pair of devices; and

the method further comprises, as a result of the subset of tests indicating there is no problem with the interfaces or the physical connection, performing a set of remaining tests of the set of tests.

5. A system, comprising at least one computing device that implements one or more services, wherein the one or more services:

obtain a test plan that specifies a set of tests to be performed to test a connection between a selected pair of devices in a network;

transmit instructions to the selected pair of devices, the instructions, as a result of execution by the selected pair of devices, causing the set of tests to be performed to test the connection between the selected pair of devices according to the test plan, performance of the set of tests causing the selected pair of devices to;

activate interfaces of the selected pair of devices to enable communication through the connection;

change addresses of the interfaces of the selected pair of devices from an initial set of addresses to a set of test-specific addresses to the interfaces; and

return the selected pair of devices to a configuration prior to performing the set of tests at least by reset addresses of the interfaces of the selected pair of devices to the initial set of addresses as a result of completing the set of tests; and

obtain a set of test results of the performed set of tests.

6. The system of claim 5, wherein the one or more services further provide the set of test results to a network topology service, causing the network topology service to compile the set of test results with other sets of test results for other pairs of devices in the network.

7. The system of claim 5, wherein:

the test plan is provided by a user client device connected to the one or more services; and

the one or more services further provide the set of test results to the user client device.

8. The system of claim 5, wherein the set of tests cause devices in the selected pair of devices to:

the set of test-specific addresses are test-specific Internet Protocol addresses;

assign the test-specific Internet Protocol addresses to interfaces of the devices in the selected pair of devices; and

reset the devices in the selected pair of devices to restore Internet Protocol addresses of the devices in the selected pair of devices used prior to performance of the set of tests.

9. The system of claim 5, wherein the one or more services further:

obtain, from a network topology service, network topology information that specifies physical connections between devices in the network; and

utilize the network topology information to select the selected pair of devices in the network.

10. The system of claim 5, wherein the one or more services further, as a result of the set of test results indicating one or more errors associated with at least one device of the selected pair of devices, provide a request to the devices in the selected pair of devices to update a route table to route network traffic around a physical connection between the selected pair of devices.

11. The system of claim 5, wherein:

the set of tests include a subset of tests that, when performed, causes the selected pair of devices to identify any failures or errors associated with interfaces of devices in the selected pair of devices or with a physical connection connecting the devices in the selected pair of devices; and

the one or more services further provide instructions to the devices in the selected pair of devices to perform further tests of the set of tests upon detecting no failures or errors associated with the interfaces of the devices or the physical connection.

12. The system of claim 5, wherein the set of tests cause devices in the selected pair of devices to, based at least in part on a determination of whether any interfaces of the devices in the selected pair of devices are offline, activate offline interfaces of the devices in the selected pair of devices to enable communication a physical connection.

13. A non-transitory computer-readable storage medium having stored thereon executable instructions that, as a result of being executed by one or more processors of a computer system, cause the computer system to:

provide test instructions obtained from a user client device to a selected pair of devices in a network, the test instructions, as a result of being executed by the selected pair of devices, cause performance of a set of tests from a test plan to;

activate interfaces of the selected pair of devices to enable communication through a connection between the selected pair of devices;

change addresses of the interfaces of the selected pair of devices from an initial set of addresses to a set of test-specific addresses to the interfaces;

test the connection between the selected pair of devices; and

return the selected pair of devices to a configuration prior to performing the set of tests at least by reset addresses of the interfaces of the selected pair of devices to the initial set of addresses; and

compile test results of the performed set of tests into a report for identifying a status of a physical connection between the selected pair of devices.

14. The non-transitory computer-readable storage medium of claim 13, wherein the executable instructions further cause the computer system to, as a result of the test results indicating that one or more errors are associated with at least one device of the selected pair of devices, providing a request to the devices in the selected pair of devices to adjust a weight for the physical connection within a route table to alter routing of network traffic over the physical connection.

15. The non-transitory computer-readable storage medium of claim 13, wherein the executable instructions further cause the computer system to:

provide a request to a network topology service to obtain network topology information that specifies physical connections between devices of pairs of devices in the network; and

use the network topology information to select the selected pair of devices in the network.

16. The non-transitory computer-readable storage medium of claim 13, wherein the set of tests cause the selected pair of devices to activate one or more offline interfaces of the devices in the selected pair of devices to enable communication through the physical connection.

17. The non-transitory computer-readable storage medium of claim 13, wherein:

the set of tests include a subset of tests that identifies issues associated with interfaces of the selected pair of devices or the physical connection; and

the executable instructions further cause the computer system to provide the test instructions to the selected pair of devices to perform further tests of the set of tests upon determining that the subset of tests was passed.

18. The non-transitory computer-readable storage medium of claim 13, wherein the executable instructions further cause the computer system to provide the set of test results to a network topology service, causing the network topology service to catalog the set of test results and enable network administrators to access the set of test results.

19. The non-transitory computer-readable storage medium of claim 13, wherein the set of test-specific addresses are test-specific Internet Protocol addresses and the set of tests cause the selected pair of devices to assign the test-specific Internet Protocol addresses to interfaces of the selected pair of devices to establish Internet Protocol connectivity through the physical connection.

20. The non-transitory computer-readable storage medium of claim 13, wherein the executable instructions further cause the computer system to provide the test results to a user client device.