Thread: [Madwifi-users] Madwifi on Ubuntu 9.04 high latency
Status: Beta
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From: MadWifi S. <ma...@pi...> - 2009-10-22 14:03:58
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Hi, i am using a PRONET PN-108WPCI wifi pci card on ubuntu 9.04 desktop 32bit. i install the latest madwifi from the following svn checkout http://svn.madwifi-project.org/madwifi/trunk madwifi i using the following configuration iwconfig ath0 essid ubuntu iwconfig ath0 channel 11 iwconfig ath0 key ---------- ifconfig ath0 2.2.2.1 netmask 255.255.255.0 up /usr/local/bin/wlanconfig ath1 create wlandev wifi0 wlanmode ap iwconfig ath1 essid Guest iwconfig ath1 channel 11 ifconfig ath1 up both the essid's run in master mode when i connect any device i get a very high latency and packet drop, i am not able identify the problem. 64 bytes from 2.2.2.2: icmp_seq=13 ttl=64 time=1690 ms 64 bytes from 2.2.2.2: icmp_seq=14 ttl=64 time=2589 ms 64 bytes from 2.2.2.2: icmp_seq=15 ttl=64 time=3400 ms 64 bytes from 2.2.2.2: icmp_seq=16 ttl=64 time=4325 ms 64 bytes from 2.2.2.2: icmp_seq=17 ttl=64 time=5270 ms 64 bytes from 2.2.2.2: icmp_seq=18 ttl=64 time=6294 ms 64 bytes from 2.2.2.2: icmp_seq=19 ttl=64 time=7252 ms 64 bytes from 2.2.2.2: icmp_seq=20 ttl=64 time=7851 ms 64 bytes from 2.2.2.2: icmp_seq=21 ttl=64 time=7985 ms 64 bytes from 2.2.2.2: icmp_seq=22 ttl=64 time=8149 ms 64 bytes from 2.2.2.2: icmp_seq=23 ttl=64 time=8357 ms 64 bytes from 2.2.2.2: icmp_seq=28 ttl=64 time=7329 ms 64 bytes from 2.2.2.2: icmp_seq=29 ttl=64 time=7263 ms 64 bytes from 2.2.2.2: icmp_seq=30 ttl=64 time=7020 ms 64 bytes from 2.2.2.2: icmp_seq=31 ttl=64 time=6851 ms 64 bytes from 2.2.2.2: icmp_seq=33 ttl=64 time=5917 ms 64 bytes from 2.2.2.2: icmp_seq=34 ttl=64 time=5642 ms 64 bytes from 2.2.2.2: icmp_seq=36 ttl=64 time=4257 ms 64 bytes from 2.2.2.2: icmp_seq=37 ttl=64 time=3370 ms 64 bytes from 2.2.2.2: icmp_seq=38 ttl=64 time=2430 ms 64 bytes from 2.2.2.2: icmp_seq=39 ttl=64 time=1934 ms lspci 01:05.0 Ethernet controller: Atheros Communications Inc. Atheros AR5001X+ Wireless Network Adapter (rev 01) dmesg [ 1153.859801] ath_pci 0000:01:05.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21 [ 1154.465909] MadWifi: ath_attach: Switching rfkill capability off. [ 1154.469326] wifi0: Atheros AR2414 chip found (MAC 7.9, PHY 2112A 4.5, Radio 5.6) [ 1154.470424] ath_pci: wifi0: Atheros 5212: mem=0xfdce0000, irq=21 uname -a Linux ubuntu 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 18:40:08 UTC 2009 i686 GNU/Linux Kindly help, Regards Swapnil |
From: MadWifi S. <ma...@pi...> - 2009-10-26 07:16:41
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waiting for a response On Thu, Oct 22, 2009 at 7:33 PM, MadWifi Support <ma...@pi...>wrote: > Hi, > > i am using a PRONET PN-108WPCI wifi pci card on ubuntu 9.04 desktop 32bit. > > i install the latest madwifi from the following > > svn checkout http://svn.madwifi-project.org/madwifi/trunk madwifi > > i using the following configuration > > iwconfig ath0 essid ubuntu > iwconfig ath0 channel 11 > iwconfig ath0 key ---------- > ifconfig ath0 2.2.2.1 netmask 255.255.255.0 up > /usr/local/bin/wlanconfig ath1 create wlandev wifi0 wlanmode ap > iwconfig ath1 essid Guest > iwconfig ath1 channel 11 > ifconfig ath1 up > > both the essid's run in master mode > > when i connect any device i get a very high latency and packet drop, i am > not able identify the problem. > > 64 bytes from 2.2.2.2: icmp_seq=13 ttl=64 time=1690 ms > 64 bytes from 2.2.2.2: icmp_seq=14 ttl=64 time=2589 ms > 64 bytes from 2.2.2.2: icmp_seq=15 ttl=64 time=3400 ms > 64 bytes from 2.2.2.2: icmp_seq=16 ttl=64 time=4325 ms > 64 bytes from 2.2.2.2: icmp_seq=17 ttl=64 time=5270 ms > 64 bytes from 2.2.2.2: icmp_seq=18 ttl=64 time=6294 ms > 64 bytes from 2.2.2.2: icmp_seq=19 ttl=64 time=7252 ms > 64 bytes from 2.2.2.2: icmp_seq=20 ttl=64 time=7851 ms > 64 bytes from 2.2.2.2: icmp_seq=21 ttl=64 time=7985 ms > 64 bytes from 2.2.2.2: icmp_seq=22 ttl=64 time=8149 ms > 64 bytes from 2.2.2.2: icmp_seq=23 ttl=64 time=8357 ms > 64 bytes from 2.2.2.2: icmp_seq=28 ttl=64 time=7329 ms > 64 bytes from 2.2.2.2: icmp_seq=29 ttl=64 time=7263 ms > 64 bytes from 2.2.2.2: icmp_seq=30 ttl=64 time=7020 ms > 64 bytes from 2.2.2.2: icmp_seq=31 ttl=64 time=6851 ms > 64 bytes from 2.2.2.2: icmp_seq=33 ttl=64 time=5917 ms > 64 bytes from 2.2.2.2: icmp_seq=34 ttl=64 time=5642 ms > 64 bytes from 2.2.2.2: icmp_seq=36 ttl=64 time=4257 ms > 64 bytes from 2.2.2.2: icmp_seq=37 ttl=64 time=3370 ms > 64 bytes from 2.2.2.2: icmp_seq=38 ttl=64 time=2430 ms > 64 bytes from 2.2.2.2: icmp_seq=39 ttl=64 time=1934 ms > > > lspci > 01:05.0 Ethernet controller: Atheros Communications Inc. Atheros AR5001X+ > Wireless Network Adapter (rev 01) > > dmesg > [ 1153.859801] ath_pci 0000:01:05.0: PCI INT A -> GSI 21 (level, low) -> > IRQ 21 > [ 1154.465909] MadWifi: ath_attach: Switching rfkill capability off. > [ 1154.469326] wifi0: Atheros AR2414 chip found (MAC 7.9, PHY 2112A 4.5, > Radio 5.6) > [ 1154.470424] ath_pci: wifi0: Atheros 5212: mem=0xfdce0000, irq=21 > > uname -a > > Linux ubuntu 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 18:40:08 UTC 2009 > i686 GNU/Linux > > Kindly help, > > Regards > > > Swapnil > |
From: Pavel R. <pr...@gn...> - 2009-10-26 23:22:05
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On Mon, 2009-10-26 at 12:46 +0530, MadWifi Support wrote: > waiting for a response Instead of waiting, you could have tried to localize the problem. For instance: 1) Use only one interface on the AP side. 2) Use private IP addresses, e.g. 192.168.x.y. 3) Try different clients. 4) Try turning off power management. I tried to reproduce your problem, but could not. I get ping times averaging to less than 10 ms. -- Regards, Pavel Roskin |