Although the thread is a bit old, here's my new understanding after a few hours of reading and fidgeting.After reading the wikipedia entry for 802.1q, this makes a bit more sense. If you want to send, for example, two subnets (vlans) over one link, ...
Any resolution to this Jeffery? I have a similar setup where I wish to push two subnets across a street using two Aironet 1310s. The answer you got that showed how to mark a port as trunked or not is where I'm hung up too. Your interface and mine ...