Bonjour,
Supervisant de nombreuses agences réparties dans le monde, dans le cade pro, je souhaite tester leur bande passante à l'aide d'Iperf.
Je viens de me rendre compte que pour des débits (udp bandwidth > 23Mb/s), prenons 30Mb/s par exemple, mon débit est "bridé" vers les 23.6Mb/s :
- TEST à 23 mb/s :
E:\Softs\jperf-2.0.2\bin>iperf.exe -c 8.8.8.8 -u -P 1 -i 1 p 5001 -f k -b 23m -t
10 -d -L 5001 -T 1
iperf.exe: ignoring extra argument -- p
iperf.exe: ignoring extra argument -- 5001
------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size: 8.00 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 8.8.8.8, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 63.0 KByte (default)
------------------------------------------------------------
[176] local 10.1.5.40 port 53624 connected with 8.8.8.8 port 5001
[ ID] Interval Transfer Bandwidth
[176] 0.0- 1.0 sec 2778 KBytes 22756 Kbits/sec
[176] 1.0- 2.0 sec 2799 KBytes 22932 Kbits/sec
[176] 2.0- 3.0 sec 2801 KBytes 22944 Kbits/sec
[176] 3.0- 4.0 sec 2779 KBytes 22767 Kbits/sec
[176] 0.0- 4.1 sec 11382 KBytes 22837 Kbits/sec
.......
- TEST à 30 mb/s :
E:\Softs\jperf-2.0.2\bin>iperf.exe -c 8.8.8.8 -u -P 1 -i 1 p 5001 -f k -b 30m -t
10 -d -L 5001 -T 1
iperf.exe: ignoring extra argument -- p
iperf.exe: ignoring extra argument -- 5001
------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size: 8.00 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 8.8.8.8, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 63.0 KByte (default)
------------------------------------------------------------
[176] local 10.1.5.40 port 54641 connected with 8.8.8.8 port 5001
[ ID] Interval Transfer Bandwidth
[176] 0.0- 1.0 sec 2878 KBytes 23579 Kbits/sec
[176] 1.0- 2.0 sec 2871 KBytes 23520 Kbits/sec
[176] 2.0- 3.0 sec 2887 KBytes 23649 Kbits/sec
[176] 0.0- 3.3 sec 9424 KBytes 23574 Kbits/sec
....
Comment celà peut il être possible ?
Si par contre je baisse le MTU, j'obtiens le débit correct, exemple à 50M et MTU 1000 :
E:\Softs\jperf-2.0.2\bin>iperf.exe -c 8.8.8.8 -u -P 1 -i 1 p 5001 -f k -b 50m -t
10 -d -L 5001 -T 1 -l 1000
iperf.exe: ignoring extra argument -- p
iperf.exe: ignoring extra argument -- 5001
------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1000 byte datagrams
UDP buffer size: 8.00 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 8.8.8.8, UDP port 5001
Sending 1000 byte datagrams
UDP buffer size: 63.0 KByte (default)
------------------------------------------------------------
[188] local 10.1.5.40 port 55033 connected with 8.8.8.8 port 5001
[ ID] Interval Transfer Bandwidth
[188] 0.0- 1.0 sec 6105 KBytes 50016 Kbits/sec
[188] 1.0- 2.0 sec 6104 KBytes 50000 Kbits/sec
[188] 0.0- 2.2 sec 13515 KBytes 49983 Kbits/sec
Merci de votre aide,