[71attendees] ietf71 wireless problems
Michael Richardson <mcr@xelerance.com> Mon, 10 March 2008 15:43 UTC
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From: Michael Richardson <mcr@xelerance.com>
To: 71attendees@ietf.org
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Date: Mon, 10 Mar 2008 10:56:00 -0400
Message-ID: <5805.1205160960@marajade.sandelman.ca>
Cc: mtd@ietf.org
Subject: [71attendees] ietf71 wireless problems
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I'm having layer-2 problems with the wireless.
(I will have to go plugin at the terminal room to send this)
I tried most of Sunday to get online, but I never succeeded. It is
no better this morning.
I am sending this in the hope that I am not alone. Many people can
online a bit, but get very poor performance, or are unable to stay on
very long. My case seems pathological.
It looks like there are just too many APs to me. My poor card doesn't
stay associated to any one of them long enough to get any data through.
I am using an external orinoco 802.11b card "Lucent Technologies GOLD",
but I have similar experiences with cisco Aironet cards. (Yes, this is a
card from an ietf 40-something meeting). The driver/orinoco-firmware
combination does not let me get a list of APs (too old), while the cisco
one does, but the cisco one never sees any AP, even though it can get a
list of them.
I've never had problems with wireless, and I'm pretty kernel competent,
and the same cards were last used 2008-03-06. I'm running debian
"GNU/Linux" etch with a custom 2.6.20.6 kernel. I suspect that my cards
might need firmware upgrades to deal with some new-fangled mechanism, but I am
ignorant of what that might be.
(I am in the market for an external 802.11a card that has a sufficiently
enlightened policy about releasing details such that quality open source
drivers can be written. No binary blobs please. The last one I ran
overheated the internal radio, and destroyed my motherboard)
Sitting at one end of the breakfast area I get:
(note link quality)
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.412 GHz Access Point: 00:17:DF:AA:3F:42
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:2
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.462 GHz Access Point: 00:17:DF:AA:38:82
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:4
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.412 GHz Access Point: 00:17:DF:AA:30:52
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:4
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.412 GHz Access Point: 00:17:DF:AA:30:52
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:13
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.412 GHz Access Point: None
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:17
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.437 GHz Access Point: 00:17:DF:AA:36:12
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:28
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.462 GHz Access Point: 00:17:DF:AA:38:80
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:30
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.462 GHz Access Point: 00:17:DF:AA:38:82
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:34
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.412 GHz Access Point: 00:17:DF:A9:DA:52
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:36
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"" Nickname:"HERMES I"
Mode:Managed Frequency:2.412 GHz Access Point: 00:17:DF:A9:DA:52
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:38
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1 essid 'ietf'
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"ietf" Nickname:"HERMES I"
Mode:Managed Frequency:2.462 GHz Access Point: 00:17:DF:AA:38:80
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:164
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
...
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"ietf" Nickname:"HERMES I"
Mode:Managed Frequency:2.462 GHz Access Point: 00:17:DF:AA:38:80
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:165
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
marajade:/home/mcr# iwconfig eth1
eth1 IEEE 802.11b ESSID:"ietf" Nickname:"HERMES I"
Mode:Managed Frequency:2.412 GHz Access Point: 00:17:DF:AA:30:50
Bit Rate:2 Mb/s Sensitivity:1/3
Retry limit:4 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=0/92 Signal level=134/153 Noise level=134/153
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:168
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
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- [71attendees] ietf71 wireless problems Michael Richardson
- Re: [71attendees] ietf71 wireless problems Jim Reid
- Re: [71attendees] ietf71 wireless problems Iljitsch van Beijnum
- Re: [71attendees] ietf71 wireless problems Rosen, Brian
- Re: [71attendees] ietf71 wireless problems Romascanu, Dan (Dan)
- Re: [71attendees] ietf71 wireless problems Yaakov Stein
- Re: [71attendees] ietf71 wireless problems Morgan Sackett
- Re: [71attendees] ietf71 wireless problems Carsten Bormann
- Re: [71attendees] ietf71 wireless problems Morgan Sackett
- Re: [71attendees] ietf71 wireless problems Romascanu, Dan (Dan)
- Re: [71attendees] ietf71 wireless problems Stephane Bortzmeyer
- Re: [71attendees] ietf71 wireless problems Stephane Bortzmeyer
- Re: [71attendees] ietf71 wireless problems Gene Chang (genchang)
- Re: [71attendees] ietf71 wireless problems Daniel Ellard
- Re: [71attendees] ietf71 wireless problems Jeffrey Hutzelman
- Re: [71attendees] ietf71 wireless problems Derek Atkins