I would be wondering if Skype had anything in their patent portfolio that could give Microsoft an edge in controlling peer-to-peer traffic.

In June 2007, Westnet stated that it had been "trialling" traffic prioritisation for a year, deprioritising peer-to-peer traffic, and would be continuing to do so in future.

Whirlpool News's article also suggested that the admission followed assertions by competing ISP Exetel that it was not the only ISP restricting peer-to-peer traffic.

In a blog post, Arbor Networks explains that normally, the little IPv6 traffic that they see is encrypted file transfers, peer-to-peer traffic, and experimental protocols.

In 2007, Comcast took steps to ease network congestion by interfering with peer-to-peer traffic.

Comcast's limit, put into place after it got caught secretly throttling peer-to-peer traffic, is 250GB-which the company says less than 99 percent of users hit.

The FCC is preparing to investigate accusations that cable provider Comcast is disrupting peer-to-peer file-sharing traffic on its network.

In November 2006, Exetel began restricting peer-to-peer traffic to 50 per cent of its total network capacity during peak periods.

Rogers already engages in several questionable practices, like impeding the usage of peer-to-peer traffic on its network.

Some ISPs deal with this traffic by increasing their capacity whilst others use specialised systems to slow peer-to-peer traffic to cut costs.