Скачать или смотреть Tech Brief Video Series - Enterprise Networking | Multipath TCP Use Cases

The 12th video in the Enterprise Networking series. More information at www.network-insight.net

Multipath TCP is particularly useful in multipath data center and mobile phone environments. All mobiles allow you to connect via WiFi and 3G network. MPTCP enables either the combined throughput and the switching of interfaces ( Wifi / 3G ) without disrupting the end-to-end TCP connection.

For example, if you are currently on a 3G network with an active TCP stream, the TCP stream is bound to that interface. If you want to move to the Wifi network you need to reset the connection and all ongoing TCP connections will, therefore, get reset. With MPTCP the swapping of interfaces is transparent.

Next generation leaf and spine data centre networks are built with Equal-Cost Multipath (ECMP). Within the data centre, any two endpoints are equidistant. For one endpoint to communicate to another, a TCP flow is placed on a single link, not spread over multiple links. As a result, single-path TCP collisions may occur, reducing the throughput available to that flow. This is commonly seen for large flows and not small mice flows.

Music from bensound.