Supporting multi-domain congestion control by a lightweight PEP
Attila Mihály, Szilveszter Nádas, Sándor Molnár, Zsolt Krämer, Robert Skog, Marcus Ihlar · 2017
The performance issues of current transport protocols (mainly TCPs) operating in today's heterogeneous networks motivate the application of Performance Enhancing Proxies (PEPs). However, current PEPs can introduce several undesired effects like extra delay, non-negligible processing demands and ossification of the transport layer. The ossification resulted in the encryption of the end-to-end transport layer, which made transparent PEPs impossible to use. We propose a lightweight transport protocol PEP solution which enables Multi-Domain Congestion Control and requires no client modification. This PEP proposal is declarative, explicit and does not contribute to ossification. The potential performance improvement by the PEP is demonstrated with simulation examples.