On Sat, 29 Nov 2003, Petri Helenius wrote:
If you are an access provider, specially in the consumer space, you can do many things to help the "Greater Internet" by keeping your own back yard in good shape. In the transit business, you are expected to deliver the bits regardless of the content so there the only viable option is to drop packets where the source or destination addresses don�t make sense.
What is the difference between a transit provider and an access provider, specially in the consumer space? Why is a transit provider expected to deliver the bits, but the access provider isn't? Since the bulk of Internet access is actually provided by wholesale providers (e.g. AOL/Earthlink buy wholesale modem access from UUNET/Level3), who is the access provider and who is the transit provider?