Teledyne LeCroy SAS Verification Test Descriptions User Manual
Page 98
The University of New Hampshire
InterOperability Laboratory
Serial Attached SCSI Consortium
97
SAS Link and Transport Layer Test Suite v0.13
Test 9.6.4 - SSP ERROR HANDLING – Extra RESPONSE frame Received
Purpose: To determine that the DUT, an SSP Initiator port, responds properly when a RESPONSE frame is
improperly retransmitted.
References:
9.2.4.5 SAS Standard
Resource Requirements: SAS Protocol Analyzer and Generator.
Revision History: September 28, 2004
Test Setup: The DUT and the Testing Station are physically connected.
Test Procedure (SSP Initiator):
• The Testing Station should start and complete a Phy Reset sequence followed by an Identify sequence
with the DUT. Since the DUT is an initiator the Testing Station should transmit an Identify Address
frame indicating that it is a SAS Target.
• Allow the DUT to open an SSP connection to the Testing Station and transmit a SCSI INQUIRY
command.
• The Testing Station should open a connection to the DUT and transmit DATA and 2 RESPONSE
frames to the DUT. The second response frame should have the retransmit bit set to 1. Close the
connection.
Observable Results: Verify that if the DUT discards the second RESPONSE frame and does not transmit ACK or
NAK in response to it.