The goal of this document is to describe the potential benefits of
applications using a transport that enables Explicit Congestion
Notification (ECN). The document outlines the principal gains in
terms of increased throughput, reduced delay, and other benefits when
ECN is used over a network path that includes equipment that supports
Congestion Experienced (CE) marking. It also discusses challenges
for successful deployment of ECN. It does not propose new algorithms
to use ECN nor does it describe the details of implementation of ECN
in endpoint devices (Internet hosts), routers, or other network
devices.
