Roll Bar Fence DIY – Keep Your Pets In & Others Out:
https://yoursassyself.com/roll-bar-fence-diy-keep-your-pets-in-others-out/?fbclid=IwAR2P5lc5ryrPV7Z6HdFFNP7opBNbmdsFOfxZjL2jnkliaH1PaeLi8fVIeys

If you’re a dog owner, you know that dogs have an amazing sense of smell and a wonderful curiosity about everything happening outside their own fenced yards. If your dogs are anything like mine, they thoroughly investigate every inch of the yard and even try to push the boundaries as often as they can. Enter this roll bar fence DIY & my Dad to the rescue. FYI we’re not a professional builders, just dog owners that needed a solution and this totally helped us with our problem.

IMPORTANT: This is being used successfully by some folks who have had dogs who jump or climb over their fences. It is not meant to be the only solution, but might help if you have tried everything else. Fairly easy to construct and worth trying.