Master's Dissertation

SCTP performance test 100Mbps Ethernet network

Scenario: COP as server, SOLDIER as client, Ethernet 100Mbps

Throughput - variation of message size

Protocol	10	100	1000	10000
TCP	20578	91782	90984	89972
TCPM	15076	82114	90886	89954
SCTP	1952	19926	87994	81118

Message size in bytes, throughput in kbps (1kbps = 1000 bits/s).

Tests show that (apparently) chunk bundling is not implemented in the tested version of LK-SCTP. (Chunk bundling is transmission of several small messages bundled in one SCTP datagram).

As message size increases, the overhead and chunk bundling costs get dilluted, and do less harm to SCTP performance.

Latency - variation of message size

Protocol	10	100	1000	10000
TCPM	101,5	138,5	463,0	1793,0
SCTP	128,0	163,0	505,0	2223,0

Message size in bytes, latency in µs

The latency that SCTP had shown in loopback tests, is now masked by the inherent network latency.