Browse Prior Art Database

Method for a multi-node NIC test

IP.com Disclosure Number: IPCOM000012558D
Publication Date: 2003-May-14
Document File: 3 page(s) / 104K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a multi-node network interface card (NIC) test. Benefits include improved functionality and an improved test environment.

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Method for a multi-node NIC test

Disclosed is a method for a multi-node network interface card (NIC) test. Benefits include improved functionality and an improved test environment.

Background

        � � � � � Conventionally, when a network adapter is tested, the unit under test (UUT) is tested one adapter port at a time. This is problematic because it increases the test time for multi-node network adapters from seconds to minutes. For computer system vendors, the extra time requirement can mean producing fewer computer systems per hour. Too much time is required to run the end-of-line diagnostic tests on multiple network adapter chips, causing a slow down of production lines. System vendors have requested the capability to simultaneously test the four ports on the four adapters (16 ports) of a multi-node network adapter.

General description

        � � � � � The disclosed method is an algorithm that enables multiple network adapters to be tested simultaneously in a single-threaded or multi-threaded operating system.

Advantages

        � � � � � The disclosed method provides advantages, including:

•        � � � � Improved functionality due to enabling the simultaneous testing of the nodes in multi-node network adapters

•        � � � � Improved test environment due to enabling manufacturers to build and test more machines with multi-node network adapters in less time

Detailed description

        � � � � � The disclosed method enables some number from 1 to N adapter ports connected to either a switch/hub or a crossover cable to be tested simultaneously.

        � � � � � The disclosed method is as follows (see Figure 1):

1.        � � The hardware bus is scanned for network adapter ports (201).
2.        � � All network adapter ports that are to be tested are added to the test list (202).
3.        � � From 2 to N network adapter ports on the multi-port NIC are cross-linked together in sequence by crossover Ethernet cables (203). An example of this would be taking a quad port Ethernet NIC and linking port 0 and port 1 and linking port 2 and port 3 with a c...