This is my experiment environment with netperf.
source
| 35 Mbps
router1
| 2 Mbps
router2
| 100 Mbps
destination
rtt from source to destination is 35.3ms
So receiver's window size set to 88250 bytes(2Mbps * 35.3 ms) and
sender's window size set to 88250 bytes.
netperf's result is
TCP STREAM TEST to destination : histogram
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
88250 88250 88250 10.04 17.81
it's 17.81Mbps
I think that since bottleneck bandwidth is 2Mbps,
throughput is less than it.
Could you give the information about this result?
Thank you in advance.
- Jaeyoung Lee