A knee protection apparatus includes an airbag and an airbag support that is attached to the airbag. In this method, an aqueous dispersion-type PSA composition is applied to at least a first side of the non-woven fabric substrate and the composition is allowed to dry to form a PSA layer. Next, the throughput available in a peer-to-peer network for delivering the content file to the client is determined. Additionally, a replica for emulating the behaviour of the line driver can also be provided.