As the integration scale of a chip increases, on-chip interconnects suffer from the increased area occupied by a large number of bus signals. To reduce the overhead for communication, this paper formulates a new concept of an on-chip communication approach, called phase-based interconnection, with an example protocol, system-on-chip network protocol (SNP). In the phase-based communication, a small number of signals called phase signals are used to distinguish the types of signals transmitted through the main communication channel

If you are downloading a big file using the bit torrent P2P protocol, you might encounter bandwidth slowdown in your other applications.  According to Wikipedia, BitTorrent is one of the most common protocols for transferring large files, and by some estimates it accounted for approximately 35% of all traffic on the entire Internet in 2004. In most cases when bandwidth is limited, enabling an unlimited BitTorrent download and upload rate could impact your other apps.

See the article here:
How to limit Torrent bandwidth usage in Bitlord