Hi,
I did several benchmarks using Intel e1000 NIC and it seems there is a
network throughput problem for MTU > 12000 (e1000 supports up to 16110
MTU).
Configuration:
Two identical PCs, connected back to back, Intel Xeon 2.8GHz (SMP/SMT
disabled), 512MB RAM, e1000 (82546EB)
Linux 2.6.11.7
netperf 2.3pl1
http://members.hellug.gr/iatrou/plain_ip_mtu.png
http://members.hellug.gr/iatrou/plain_ip_mtu.dat
--
Michael Iatrou
Electrical and Computer Engineering Dept.
University of Patras, Greece
1500 936.14
1550 938.45
1600 927.26
1650 943.06
1700 942.91
1750 943.94
1800 947.95
1850 945.14
1900 952.91
1950 948.15
2000 948.55
2050 949.63
2100 953.98
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2500 964.36
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2800 968.12
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4000 977.68
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15950 825.10
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