How do you set up a CVP line?

Excuse me, could you elaborate on the process of establishing a CVP line? I'm particularly interested in the initial steps and any key considerations that need to be made along the way. Are there any prerequisites or specific tools that are required for setting up a CVP line? Additionally, could you provide some insight into the potential challenges that one might face during the setup process and how they could be overcome? Thank you in advance for your guidance.