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#1 Le 10/04/2008, à 20:11

bilbo-le-hobbit

Mon wifi se traine, comment mieux configurer?

Salut, j'ai un petit problème, mon wifi se traîne, au lieu d'avoir un débit max de 54mb/s, j'ai au mieux 24mb/s (ce qui est mieux que rien), voire 1mb/s (ce qui est moins que rien) . J'aimerais pouvoir utiliser au moins l'un de mes wifi au maximum de ses capacités. Pour le débit de 1mb, ça vient de ralink rt2500, bug enregistré sur launchpad il me semble (y a plus qu'à attendre le patch? ), par contre je ne comprends pas pourquoi le dongle sagem de la livebox plafonne à 24 mb (modèle xg760A) .Ça vient de quoi? Du réglage livebox? Du wpa? Un réglage dans linux? Autre chose? J'attends vos suggestions, merci d'avance!

Quelques infos sur ma config:
Ubuntu Hardy
2.6.24-15-generic i686
Livebox sagem

eric@ISILDUR:~$ cat  /etc/network/interfaces
auto lo
iface lo inet loopback
eric@ISILDUR:~$ lsusb
Bus 005 Device 007: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 005 Device 006: ID 05e3:0710 Genesys Logic, Inc. USB 2.0 33-in-1 Card Reader
Bus 005 Device 005: ID 079b:004a Sagem 
Bus 005 Device 003: ID 04b8:011e Seiko Epson Corp. Perfection 1660 Photo
Bus 005 Device 002: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 005 Device 001: ID 0000:0000  
Bus 004 Device 001: ID 0000:0000  
Bus 003 Device 001: ID 0000:0000  
Bus 002 Device 003: ID 13fe:1a00 Kingston Technology Company Inc. 512MB/1GB Flash Drive
Bus 002 Device 002: ID 0451:2046 Texas Instruments, Inc. TUSB2046 Hub
Bus 002 Device 001: ID 0000:0000  
Bus 001 Device 001: ID 0000:0000
eric@ISILDUR:~$ lspci
00:00.0 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. K8T800Pro Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800/K8T890 South]
00:07.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
00:08.0 RAID bus controller: Promise Technology, Inc. PDC20378 (FastTrak 378/SATA 378) (rev 02)
00:0a.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller (rev 13)
00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
00:0e.0 Network controller: RaLink RT2500 802.11g Cardbus/mini-PCI (rev 01)
00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:11.6 Communication controller: VIA Technologies, Inc. AC'97 Modem Controller (rev 80)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation NV40 [GeForce 6800] (rev a1)
eric@ISILDUR:~$ sudo lshw -C network
[sudo] password for eric: 
  *-network:0             
       description: Ethernet interface
       product: 88E8001 Gigabit Ethernet Controller
       vendor: Marvell Technology Group Ltd.
       physical id: a
       bus info: pci@0000:00:0a.0
       logical name: eth0
       version: 13
       serial: 00:11:2f:d2:c6:27
       capacity: 1GB/s
       width: 32 bits
       clock: 66MHz
       capabilities: pm vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=skge driverversion=1.13 firmware=N/A latency=64 link=no maxlatency=31 mingnt=23 module=skge multicast=yes port=twisted pair
  *-network:1 DISABLED
       description: Ethernet interface
       product: RTL-8139/8139C/8139C+
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: d
       bus info: pci@0000:00:0d.0
       logical name: eth1
       version: 10
       serial: 00:50:fc:96:99:f4
       size: 10MB/s
       capacity: 100MB/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=8139too driverversion=0.9.28 duplex=half latency=64 link=no maxlatency=64 mingnt=32 module=8139too multicast=yes port=MII speed=10MB/s
  *-network:2 DISABLED
       description: Wireless interface
       product: RT2500 802.11g Cardbus/mini-PCI
       vendor: RaLink
       physical id: e
       bus info: pci@0000:00:0e.0
       logical name: wmaster0
       version: 01
       serial: 00:11:2f:c6:e9:0a
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list logical ethernet physical wireless
       configuration: broadcast=yes driver=rt2500pci ip=192.168.1.12 latency=64 module=rt2500pci multicast=yes wireless=IEEE 802.11g
  *-network
       description: Wireless interface
       physical id: 1
       logical name: eth2
       serial: 00:60:b3:e3:3d:ac
       capabilities: ethernet physical wireless
       configuration: broadcast=yes ip=192.168.1.13 multicast=yes wireless=IEEE 802.11b/g
eric@ISILDUR:~$ lsmod
Module                  Size  Used by
michael_mic             3456  2 
ieee80211_crypt_tkip    11648  1 
ieee80211_crypt_ccmp     7936  1 
nls_iso8859_1           4992  1 
nls_cp437               6656  1 
vfat                   14464  1 
fat                    54556  1 vfat
af_packet              23812  4 
rfcomm                 41744  2 
l2cap                  25728  13 rfcomm
bluetooth              61156  4 rfcomm,l2cap
ipv6                  267780  14 
vboxdrv                61360  0 
ppdev                  10372  0 
powernow_k8            16704  0 
cpufreq_powersave       2688  0 
cpufreq_stats           7104  0 
cpufreq_conservative     8712  0 
cpufreq_userspace       5284  0 
cpufreq_ondemand        9740  1 
freq_table              5536  3 powernow_k8,cpufreq_stats,cpufreq_ondemand
video                  19856  0 
output                  4736  1 video
container               5632  0 
sbs                    15112  0 
sbshc                   7680  1 sbs
dock                   11280  0 
battery                14212  0 
iptable_filter          3840  0 
ip_tables              14820  1 iptable_filter
x_tables               16132  1 ip_tables
aes_i586               33536  1 
dm_crypt               15364  0 
dm_mod                 62660  1 dm_crypt
ac                      6916  0 
w83627hf               23444  0 
hwmon_vid               4352  1 w83627hf
f75375s                15636  0 
sbp2                   24072  0 
lp                     12324  0 
arc4                    2944  4 
ecb                     4480  4 
blkcipher               8324  1 ecb
snd_mpu401              9448  0 
analog                 13600  0 
parport_pc             36260  1 
snd_via82xx            29464  4 
parport                37832  3 ppdev,lp,parport_pc
gameport               16008  2 analog,snd_via82xx
snd_mpu401_uart         9728  2 snd_mpu401,snd_via82xx
evdev                  13056  5 
snd_seq_dummy           4868  0 
usb_storage            73664  1 
zd1211rw               56964  0 
libusual               19108  1 usb_storage
ieee80211softmac       30976  1 zd1211rw
ieee80211              35528  2 zd1211rw,ieee80211softmac
ieee80211_crypt         7040  3 ieee80211_crypt_tkip,ieee80211_crypt_ccmp,ieee80211
serio_raw               7940  0 
snd_seq_oss            35584  0 
snd_seq_midi            9376  0 
psmouse                40336  0 
rt2500pci              20352  0 
rt2x00pci              11264  1 rt2500pci
rt2x00lib              22528  2 rt2500pci,rt2x00pci
snd_rawmidi            25760  2 snd_mpu401_uart,snd_seq_midi
snd_via82xx_modem      16264  0 
snd_ac97_codec        101028  2 snd_via82xx,snd_via82xx_modem
rfkill                  8592  1 rt2x00lib
snd_seq_midi_event      8320  2 snd_seq_oss,snd_seq_midi
ac97_bus                3072  1 snd_ac97_codec
snd_pcm_oss            42144  0 
snd_mixer_oss          17920  1 snd_pcm_oss
input_polldev           5896  1 rt2x00lib
crc_itu_t               3072  1 rt2x00lib
snd_seq                54224  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_seq_device          9612  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
mac80211              165652  3 rt2500pci,rt2x00pci,rt2x00lib
snd_pcm                78596  4 snd_via82xx,snd_via82xx_modem,snd_ac97_codec,snd_pcm_oss
pcspkr                  4224  0 
k8temp                  6656  0 
snd_timer              24836  2 snd_seq,snd_pcm
snd_page_alloc         11400  3 snd_via82xx,snd_via82xx_modem,snd_pcm
snd                    56996  22 snd_mpu401,snd_via82xx,snd_mpu401_uart,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_via82xx_modem,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore               8800  1 snd
cfg80211               15112  1 mac80211
i2c_viapro              9876  0 
eeprom_93cx6            3200  1 rt2500pci
nvidia               7825536  44 
i2c_core               24832  3 f75375s,i2c_viapro,nvidia
shpchp                 34452  0 
pci_hotplug            30880  1 shpchp
button                  9232  0 
amd64_agp              13444  1 
agpgart                34760  2 nvidia,amd64_agp
ext3                  136712  3 
jbd                    48404  1 ext3
mbcache                 9600  1 ext3
sr_mod                 17956  0 
cdrom                  37408  1 sr_mod
pata_via               13316  6 
sg                     36880  0 
sd_mod                 30720  12 
pata_acpi               8320  0 
floppy                 59588  0 
8139too                27520  0 
ehci_hcd               37900  0 
uhci_hcd               27024  0 
ata_generic             8324  0 
sata_via               12420  3 
sata_promise           14724  0 
usbcore               146028  6 usb_storage,zd1211rw,libusual,ehci_hcd,uhci_hcd
8139cp                 24704  0 
mii                     6400  2 8139too,8139cp
skge                   43536  0 
libata                159344  5 pata_via,pata_acpi,ata_generic,sata_via,sata_promise
scsi_mod              151436  6 sbp2,usb_storage,sr_mod,sg,sd_mod,libata
ohci1394               33584  0 
ieee1394               93752  2 sbp2,ohci1394
thermal                16796  0 
processor              36872  2 powernow_k8,thermal
fan                     5636  0 
fbcon                  42912  0 
tileblit                3456  1 fbcon
font                    9472  1 fbcon
bitblit                 6784  1 fbcon
softcursor              3072  1 bitblit
fuse                   50580  8
eric@ISILDUR:~$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      no wireless extensions.

eth2      IEEE 802.11b/g  ESSID:"Wanadoo_4ca5"  Nickname:"zd1211"
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:10:C6:CA:7A:52   
          Bit Rate=24 Mb/s   
          Link Quality=79/100  Signal level=28/100  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

wmaster0  no wireless extensions.

wlan0     IEEE 802.11g  ESSID:"Wanadoo_4ca5"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: Not-Associated   
          Tx-Power=27 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2346 B   
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
eric@ISILDUR:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:11:2f:d2:c6:27  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
          Interruption:17 

eth2      Link encap:Ethernet  HWaddr 00:60:b3:e3:3d:ac  
          inet adr:192.168.1.13  Bcast:192.168.1.255  Masque:255.255.255.0
          adr inet6: fe80::260:b3ff:fee3:3dac/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:20536 erreurs:8820 :10 overruns:0 frame:8807
          TX packets:16131 errors:4566 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:26172729 (24.9 MB) Octets transmis:2073927 (1.9 MB)

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          Packets reçus:3367 erreurs:0 :0 overruns:0 frame:0
          TX packets:3367 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:212465 (207.4 KB) Octets transmis:212465 (207.4 KB)
eric@ISILDUR:~$ iwlist scan
lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

eth1      Interface doesn't support scanning.

eth2      Scan completed :
          Cell 01 - Address: 00:10:C6:CA:7A:52
                    ESSID:"Wanadoo_4ca5"
                    Protocol:IEEE 802.11g
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality=100/100  Signal level=82/100  
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 32ms ago
          Cell 02 - Address: 00:17:33:5B:A2:A8
                    ESSID:"Neuf WiFi"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality=100/100  Signal level=5/100  
                    Extra: Last beacon: 392ms ago
          Cell 03 - Address: 00:17:33:5B:A2:A1
                    ESSID:"NEUF_A2A0"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality=100/100  Signal level=5/100  
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    Extra: Last beacon: 1008ms ago

wmaster0  Interface doesn't support scanning.

wlan0     No scan results

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#2 Le 10/04/2008, à 20:17

kvb

Re : Mon wifi se traine, comment mieux configurer?

http://fr.wikipedia.org/wiki/Wifi

norme g (de wifi g) :
54 Mbit/s théoriques soit environ 25 Mbit/s rééls


voilà
sinon recemment il y a un autre fai (free) qui integre la norme n du wifi (300 Mbits/s theorique)

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#3 Le 10/04/2008, à 20:44

bilbo-le-hobbit

Re : Mon wifi se traine, comment mieux configurer?

Donc ce serait normal... C'est quand même bizarre de mélanger  ainsi le débit théorique et réel dans la config elle même!


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