Faster and more efficient: P2P preparation and upgrade P4P

Driver House [original] by: Shang Fang Wen Q
People who are crazy about downloading Bt and donkey must be familiar with P2P (peer-to-peer) networks. However, while facilitating sharing, the bandwidth usage that comes along with it is also a headache. Therefore, the distributed computing industry association (dcia) proposed the "P4P" network protocol concept, and Verizon's recent experiments also prove that this P2P network upgrade can indeed greatly increase the download speed, and significantly reduce network congestion.

P4P stands for "proactive network provider participant ipation for P2P". It is intended to enhance the communication between service providers (ISPs) and client programs and reduce the transmission pressure and operation costs of backbone networks, it also improves the performance of improved P2P file transmission. Different from P2P randomly selected peer (PEER), The P4P protocol can coordinate network topology data and effectively select peer, thus improving network routing efficiency.

Doug Pasko, Senior Verizon engineer and co-chair of the P4P Working Group, said that Verizon's tests using Pando showed that P4P could improve download performance by about 200%, sometimes up to 600%. Doug Pasko pointed out that although P2P faces many legal challenges, it has been legalized in many large commercial content publishing systems, and P4P can make P2P more commercially available and reduce the network burden.

Since the efficiency of the P4P Protocol depends on the availability of network topology information, Verizon and P4P workgroup plan to make it an industry standard and encourage other operators to share their data, currently, it has been supported by many ISPs, such as Comcast, the number one cable network operator in the United States.

A White Paper (PDF) published by the P4P Working Group pointed out that although many operators try to block P2P applications, the results are often minimal and it is impossible and unrealistic to completely eliminate such applications; by using P4P technology and enhancing the communication between P2P and the network, client programs can better use network status information, thus reducing network pressure and operating costs. -- In short, blocking is better than dredging.