ramachandran - thanks again for your questions. Just a reminder that this area of Mentor Communities is for general community questions and suggestions. Your questions are of a specific product usage nature. Posting those in the appropriate PCB community will provide them with much greater visibility by members who may be able to offer some insight on your question. I will move your question to the PCB area. BTW - I am assuming you are using our Xpedition flow. Let me know if you are using our PADS flow and i will move it to that community Thanks again for participating in our communities.