What do you want to do next?
Use the Error Detector.
Set up the serial error detector.
Set error detector advanced settings.
Specify the error detector test pattern.
Set the error detector stop condition.
Error detector setups  
210  DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series