Consolidation of network test automation tools

Patent metadata

Field	Value
Publication number	US-10015072-B2
Application number	US-201615204819-A
Country	US
Kind code	B2
Filing date	Jul 7, 2016
Priority date	Jul 7, 2016
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

An automated network test system includes an integrated network switch connected to a network under test. The network switch includes a first and second plurality of network switch ports. The network switch further includes a physical layer engine coupled to the first plurality of network switch ports. The network switch also includes at least one processor having a plurality of processing cores that can each asynchronously execute a test execution context and a test engine having a plurality of dynamically configurable function modules. The test engine is coupled to the second plurality of network switch ports, the physical layer engine and at least one processor. The test engine is configured for automatic testing of the network under test.

First claim

What is claimed is:

1. An automated network test system comprising:
an integrated network switch connected to a network under test, the network switch comprising:
a first and second plurality of network switch ports;
a physical layer engine coupled to the first plurality of network switch ports;
at least one processor having a plurality of processing cores that can each asynchronously execute a test execution context; and
a test engine having a dynamically configurable impairment injection module, the test engine coupled to the second plurality of network switch ports, the physical layer engine and the at least one processor, the test engine configured for automatic testing of the network under test.

2. The automated network test system as recited in claim 1 , wherein the plurality of dynamically configurable function modules comprises a field programmable gate array (FPGA).

3. The automated network test system as recited in claim 2 , wherein the test engine further includes dynamically configurable function modules consisting of: a data analysis module, a data traffic generator module, a network application simulator module and a statistics collector module.

4. The automated network test system as recited in claim 1 , wherein at least one of the plurality of processing cores comprises an embedded processor core for executing program instructions associated with one or more test control applications, the embedded processor core coupled to a CPU bus interconnecting the embedded processor with the test engine.

5. The automated network test system as recited in claim 1 , wherein at least one of the plurality of processing cores comprises an embedded processor core for executing program instructions associated with packet processing, the packet processing core configured for sending and receiving control data to/from the test engine.

6. The automated network test system as recited in claim 1 , further comprising image storage coupled to the test engine for storing a plurality of configuration images, wherein each of the plurality of configuration images comprises a plurality of test tools configuration settings corresponding to a particular test.

7. The automated network test system as recited in claim 6 , further comprising a remote application hosted by an external device operatively coupled to the integrated network switch, wherein the remote application enables a user to specify one or more test tool configurations to be loaded into the integrated network switch and wherein the remote application enables a user to specify one or more test suites to be executed by the integrated network switch.

8. The automated network test system as recited in claim 7 , wherein the at least one processor is further configured to retrieve from the image storage the one or more test tool configurations specified by the user and further configured to load the one or more test tool configurations into the test engine of the integrated network switch.

9. The automated network test system as recited in claim 5 , further comprising packet memory coupled to the test engine for storing packets to be used for the automatic testing of the network under test and to be used for subsequent packet analysis.

10. The automated network test system as recited in claim 9 , wherein the test engine further comprises:
a parser coupled to the second plurality of network switch ports;
a crossbar switch interconnect fabric coupled to the parser and to at least one of the plurality of processing cores, the crossbar switch fabric portion including a control module configured to receive the control data from the at least one of the plurality of processing cores and configured to generate traffic data based on the received control data;
a fast-path packet data driver coupled to the crossbar switch interconnect fabric, the fast-path packet data driver configured to receive and process the generated traffic data; and
one or more memory controllers configured to manage traffic data determined to be stored to the packet memory by the fast-path packet data driver.

Assignees

• Netscout Systems Inc

Inventors

• Cantwell Larry
• Schmidt Steve
• Houvig Flex
• Higgins Bill

Classifications

• H04L43/20

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

• H04L43/50 Primary

  Testing arrangements · CPC title

• H04L43/08

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