UPDATED 2010-11-23: There were a couple of typos in the code & a few lines in the wrong order. Thanks to Vic for letting me know about them.
Hopefully after reading Part 1 you have a general idea of what is going on. In this part we will do the configuation needed on CS1 and start to configure wlan1. I strongly recommend connecting via the console for this but it should be possible (if you are careful in which order you enter the commands that you could do this over ssh/telnet). During this period wlan1 will be unavailable to the users but wlan2 will be running fine so they shouldn’t notice any down time.