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ABRtest, An Implementation Tool for Conformance Testing the ATM
ABR Service Rate Control
The Implementation Tool was developed at the National Institute
of Standards and Technology (NIST) to facilitate the implementation
of conformance test suites. This product is intended to provide a
tool for ATM product developers and ATM test equipment designers
who need to construct test facilities for standard conformance testing
of ABR service rate control implementations. The protocol that is
the target of this effort is provided in the Available Bit Rate (ABR)
rate control scheme specified in section 5.10 of the ATM Forum Traffic
Management (TM) Specification V4.0. The Implementation Tool provides
the user with an environment for executing all of the conformance test
cases proposed by NIST to the ATM Forum for ABR rate control
(ATM Forum/97-0034). This environment includes a graphical user
interface for setting service parameters, setting timer values, and
executing the test cases. The test system that is constructed
using this tool may then be used for formal conformance testing of
an ABR rate control implementation, or for product testing in the
early stages of the product development cycle.
The Implementation Tool consists of two distinct parts: an Upper
Tester (UT) which resides on the same platform as the system under
test, and a Lower Tester (LT) which resides on a separate platform.
The UT and LT require programming interfaces to the AAL5 (for the UT)
and ATM (for the LT) layers. The system uses a set of application
program interface routines to access the system dependent features
such as timers, ATM hardware and protocol layer interfaces. The
function of these routines are described in the users' manual.
They must be provided by the implementor who is porting this tool.
The tool is written in the C++ programming language.
SOFTWARE AND DOCUMENTATION
Project Contact
For inquiries regarding this project, contact
David Su.
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