Extended wrap mode with source/destination wrap
AssigneeInternational Business Machines Corporation
InventorsJohn Lloyd, Timothy James Smith
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Abstract
Apparatus and method for automatically testing hardware and software components of a system. A request type message is generated in the software component of the system. A request-type message, including a destination address and a source address, is made to traverse the transmit channel of the system. The destination address and source address are swapped, i.e., interchanged, and the message is wrapped into the receive channel where it is forwarded to the software component for further analysis. Modification is in the transmit channel to modify the message by swapping the source address and the destination address to preclude discarding of the message by the receive channel.
Claims5
In a system including
- means for generating messages containing source addresses and destination addresses,
- transmission means for transmitting messages, and
- reception means for receiving messages,
- the improvement comprising:
- selector means for selectively coupling messages from the transmission means to the reception means;
- and
- swapping means included in said transmission means for interchanging source addresses and destination addresses in messages.
A method of self-test of a system capable of communication comprising the steps of:
- originating a test message which includes a source address and a destination address;
- passing the test message via a transmission channel;
- swapping the source address and destination address in the transmission channel;
- transmitting the message via an output port;
- wrapping the output port of the system to the receiving port;
- and
- verifying the integrity of the received message to establish the system is error free.
Dependencies are inferred from the claim text.