Packet drop differentiator (2)
TCP flows get lower throughput because delay differentiation increases RTT of TS flows.
PDD aims to compensate TS class by decreasing its drop probability.
Example: PDD mechanism that assumes RED as an AQM employed in the router.
- Majority of throughput-sensitive applications use TCP as transport protocol.
- A simple model of the TCP throughput is derived in [Towsley, 2000]: