Remote network device component testing

• US 8,797,880 B2
• Filed: 02/09/2010
• Issued: 08/05/2014
• Est. Priority Date: 02/09/2010
• Status: Active Grant

• Current Assignee: Juniper Networks Incorporated
• Original Assignee: Juniper Networks Incorporated
• Inventors: Li, Xianzhi, Luo, Michael
• Primary Examiner(s): Nguyen, Brian D
• Assistant Examiner(s): Shand, Roberta A
• Application Number:
  US12/702,545
• Publication Number:
  US 20110194425A1
• Time in Patent Office: 1,638 Days
• Field of Search: None
• US Class Current: 370/241
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

A network device receives, from a remote user device, a requested test that includes test Internet protocol (IP) packets, and converts the test IP packets into hardware test commands. The network device also performs, based on the hardware test commands, the requested test on a component of a network device card to produce hardware test results. The network device further converts the hardware test results into test results in an IP packet format, and provides the tests results in the IP packet format to the remote user device.

Claims

1. A method comprising:

receiving, by a network device and from a remote user device, a requested test that includes test Internet protocol (IP) packets,

the requested test being to test the network device;

identifying, by the network device, a component of a network device card associated with the network device,

the requested test being performed on the component of the network device card;

determining, by the network device, a type of packet format that is understood by the component of the network device card;

determining, by the network device, that a format of the test IP packets is not associated with the type of packet format that is understood by the component of the network device card;

converting, by the network device and based on determining that the format of the test IP packets is not associated with the type of packet format that is understood by the component of the network device card, the test IP packets into hardware test commands,

the hardware test commands being associated with the type of packet format that is understood by the component of the network device card;

performing, by the network device and based on the hardware test commands, the requested test on the component of the network device card to produce hardware test results;

converting, by the network device, the hardware test results into test results in an IP packet format; and

providing, by the network device, the tests results in the IP packet format to the remote user device.

2. The method of claim 1, where the requested test includes information associated with analyzing and debugging the component of the network device card.

3. The method of claim 1, where the component of the network device card comprises one of:

an application-specific integrated circuit (ASIC) of the network device card, or

a field-programmable gate array (FPGA) of the network device card.

4. The method of claim 1, where converting the test IP packets comprises:

converting the test IP packets into joint test action group (JTAG) test commands.

5. The method of claim 4, where performing the requested test comprises:

performing, based on the JTAG test commands, the requested test on a field-programmable gate array (FPGA) of the network device card to produce test results in a JTAG format.

6. The method of claim 5, where converting the hardware test results comprises:

converting the test results, from the JTAG format, into tests results in the IP packet format.

7. The method of claim 1, where the network device comprises one or more of:

a gateway,

a router,

a switch,

a firewall,

a network interface card (NIC),

a hub,

a bridge,

a proxy server, or

an optical add-drop multiplexer (OADM).

8. A network device comprising:

a processor to;

receive, from a remote user device, a requested test that includes test Internet protocol (IP) packets,

the requested test being to test the network device; and

provide the test IP packets to a control processor;

the control processor to;

identify a component of a network device card associated with the network device,

the requested test being performed on the component of the network device card;

determine a type of packet format that is understood by the component of the network device card;

determine that a format of the test IP packets is not associated with the type of packet format that is understood by the component of the network device card;

convert, based on determining that the format of the test IP packets is not associated with the type of packet format that is understood by the component of the network device card, the test IP packets into hardware test commands,

the hardware test commands being associated with the type of packet format that is understood by the component of the network device card; and

provide the hardware test commands to a control manager of the network device card; and

the control manager to;

perform, based on the hardware test commands, the requested test on the component of the network device card to produce hardware test results; and

provide the hardware test results to the control processor;

the control processor being further to;

convert the hardware test results into test results in an IP packet format; and

provide the test results in the IP packet format to the processor;

the processor being further to;

provide the tests results in the IP packet format to the remote user device.

9. The network device of claim 8, where the network device comprises one or more of:

a gateway,

a router,

a switch,

a firewall,

a network interface card (NIC),

a hub,

a bridge,

a proxy server, or

an optical add-drop multiplexer (OADM).

10. The network device of claim 8, where the requested test includes information associated with analyzing and debugging the component of the network device card.

11. The network device of claim 8, where the network device card comprises one of:

an input input/output (I/O) card,

a quality of service (QoS) card,

connectivity fault management (CFM) card,

a secure processing card, or

a card for routing data.

12. The network device of claim 8, where the component of the network device card comprises one of:

an application-specific integrated circuit (ASIC) of the network device card, or

a field-programmable gate array (FPGA) of the network device card.

13. The network device of claim 8, where the hardware test commands include joint test action group (JTAG) test commands.

14. The network device of claim 13, where, when performing the requested test, the control manager is further to:

perform, based on the JTAG test commands, the requested test on a field-programmable gate array (FPGA) of the network device card to produce test results in a JTAG format.

15. The network device of claim 14, where, when converting the hardware test results, the control processor is further to:

convert the test results, from the JTAG format, into tests results in the IP packet format.

16. A system comprising:

a network device in communication with a user device, the network device being to;

receive, from the user device, a requested test that includes test Internet protocol (IP) packets,

the requested test being to test the network device;

identify a component of a network device card associated with the network device,

the requested test being performed on the component of the network device card;

determine a type of packet format that is understood by the component of the network device card;

determine that a format of the test IP packets is not associated with the type of packet format that is understood by the component of the network device card;

convert, based on determining that the format of the test IP packets is not associated with the type of packet format that is understood by the component of the network device card, the test IP packets into hardware test commands,

the hardware test commands being associated with the type of packet format that is understood by the component of the network device card;

perform, based on the hardware test commands, the requested test on the component of the network device card to produce hardware test results;

convert the hardware test results into test results in an IP packet format; and

provide the tests results in the IP packet format to the remote user device.

17. The system of claim 16, where the requested test includes information associated with analyzing and debugging the component of the network device card.

18. The system of claim 16, where the component of the network device card comprises one of:

an application-specific integrated circuit (ASIC) of the network device card, or

a field-programmable gate array (FPGA) of the network device card.

19. The system of claim 16, where the network device is further to:

convert the test IP packets into joint test action group (JTAG) test commands,

perform, based on the JTAG test commands, the requested test on a field-programmable gate array (FPGA) of the network device card to produce test results in a JTAG format, and

convert the test results, in the JTAG format, into tests results in the IP packet format.

20. The system of claim 16, where the network device comprises one or more of:

a gateway,

a router,

a switch,

a firewall,

a network interface card (NIC),

a hub,

a bridge,

a proxy server, or

an optical add-drop multiplexer (OADM).