I successfully deployed two test App Services: http://chenwebapp.azurewebsites.net/, http://chenwebappea.azurewebsites.net/. I can open these two services without any problem.
Now I created a Traffic Manager in the portal, and set up these two portals as end points. The Traffic Manager DNS I got is chentmtest.trafficmanager.net with a status of "Enabled". But I cannot open chentmtest.trafficmanager.net in IE. What should I do?