Le satellite, entraine une latence importante. Tuxtt nous a permis de réaliser des tests de latence et de débit (avec iperf) ave cune connexion 1024 Kb/s en download (256 Kb/s en upload) de la société http://www.sat2way.fr/$ ping -c 10 free.frPING free.fr (212.27.48.10) 56(84) bytes of data.
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=1 ttl=116 time=853 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=2 ttl=116 time=941 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=3 ttl=116 time=816 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=4 ttl=116 time=903 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=5 ttl=116 time=802 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=6 ttl=116 time=893 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=7 ttl=116 time=984 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=8 ttl=116 time=905 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=9 ttl=116 time=995 ms
64 bytes from
www.free.fr (212.27.48.10): icmp_seq=10 ttl=116 time=899 ms
--- free.fr ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9005ms
rtt min/avg/max/mdev = 802.371/899.579/995.349/60.522 ms
$ traceroute free.frtraceroute to free.fr (212.27.48.10), 30 hops max, 40 byte packets
1 routeur.langmatt.lan (10.0.0.250) 0.177 ms 0.141 ms 0.103 ms
2 * * *
3 * * *
4 192.168.1.1 (192.168.1.1) 800.610 ms 972.704 ms 974.817 ms
5 192.168.1.254 (192.168.1.254) 976.628 ms 978.104 ms 979.771 ms
6 217.159.0.44 (217.159.0.44) 1314.662 ms 1313.935 ms 1315.694 ms
7 * h-213.61.175.85.host.de.colt.net (213.61.175.85) 875.371 ms 897.160 ms
8 ge7-2-pr1.FRA.router.COLT.NET (212.74.65.142) 896.535 ms 896.232 ms 896.038 ms
9 * decix.proxad.net (80.81.192.223) 938.492 ms *
10 * * *
11 bzn-6k-sys-po21.intf.routers.proxad.net (212.27.50.6) 921.700 ms 918.600 ms 914.396 ms
12 * * *
13 * * *
$ iperf -c 212.27.33.25 -m -w 216K -i 5 -t 30 -r------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 206 KByte (WARNING: requested 216 KByte)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 212.27.33.25, TCP port 5001
TCP window size: 206 KByte (WARNING: requested 216 KByte)
------------------------------------------------------------
[ 4] local 84.235.162.142 port 37933 connected with 212.27.33.25 port 5001
[ 5] local 84.235.162.142 port 5001 connected with 212.27.33.25 port 59753
[ 5] 0.0- 5.0 sec 358 KBytes 587 Kbits/sec
[ 4] 0.0- 5.0 sec 376 KBytes 616 Kbits/sec
[ 5] 5.0-10.0 sec 378 KBytes 619 Kbits/sec
[ 4] 5.0-10.0 sec 136 KBytes 223 Kbits/sec
[ 5] 10.0-15.0 sec 401 KBytes 657 Kbits/sec
[ 4] 10.0-15.0 sec 144 KBytes 236 Kbits/sec
[ 5] 15.0-20.0 sec 391 KBytes 641 Kbits/sec
[ 4] 15.0-20.0 sec 192 KBytes 315 Kbits/sec
[ 5] 20.0-25.0 sec 317 KBytes 519 Kbits/sec
[ 4] 20.0-25.0 sec 184 KBytes 301 Kbits/sec
[ 5] 25.0-30.0 sec 390 KBytes 639 Kbits/sec
[ 4] 25.0-30.0 sec 184 KBytes 301 Kbits/sec
[ 4] 0.0-30.9 sec 1.20 MBytes 325 Kbits/sec
[ 4] MSS size 812 bytes (MTU 852 bytes, unknown interface)
[ 5] 0.0-33.7 sec 2.50 MBytes 622 Kbits/sec
[ 5] MSS size 812 bytes (MTU 852 bytes, unknown interface)