From: "Lars Ericsson" <Lars_Ericsson@telia.com>
To: <linux-wireless@vger.kernel.org>, <hostap@lists.shmoo.com>
Subject: Roaming problems
Date: Tue, 22 Apr 2008 17:09:14 +0200 [thread overview]
Message-ID: <00ff01c8a48a$d4063d80$0b3ca8c0@gotws1589> (raw)
[-- Attachment #1: Type: text/plain, Size: 1896 bytes --]
Hi,
I'm currently running a number of sites using the RT61 WLAN chipset.
>From time to time we have fatal roaming problems.
I have collected a trace that show normal and problem situation.
Any help explaining the cause of the problem is appreciated.
Below is a summary of the trace. Attached it the complete trace.
/Lars
CASE 1: The above trace is a typical trace from a roaming atempt.
==========================================================
361830.763657 We lost conatct with current AP 00:0e:d7:ac:84:20
361831.252992 We have selected the new AP 00:0f:24:d1:5e:e0
361831.256287 Why do we try to authenticate with previous AP
00:0e:d7:ac:84:20 ? <-----
361831.261071 Finaly we selected the correct AP 00:0f:24:d1:5e:e0
361831.295573 We are up and running
CASE 2: The above trace is a typical trace from a roaming atempt.
==========================================================
362123.346748 We lost conatct with current AP 00:0f:24:d1:5e:e0
362123.842242 We have selected the new AP 00:0e:d7:ac:84:20
362123.861586 We try connect AP 00:0e:d7:ac:84:20
362123.874442 We are up and running
CASE 3: The above trace is a typical trace from a roaming atempt.
===================================================================
362441.946825 We lost conatct with current AP 00:0e:d7:ac:84:20
362442.449435 We have selected the new AP 00:0f:24:a3:b8:60
362442.466944 Why do we try to authenticate with previous AP
00:0e:d7:ac:84:20 ? <-----
362442.470147 Finaly we selected the correct AP 00:0f:24:a3:b8:60
361831.295573 We are up and running
362443.066379 Timeout.
362444.886776 New try with selected AP 00:0f:24:a3:b8:60
362444.904429 Associated
362444.904883 What initiate this 'Initial auth_alg=0' with the associated
AP ? <-----
362444.908677 What initiate this 'Initial auth_alg=0' with AP
00:0f:24:d1:5e:e0 ? <-----
362445.505964 No one reacts on the 'timed out' event <-----
[-- Attachment #2: trace.txt --]
[-- Type: text/plain, Size: 10936 bytes --]
Hi,
I'm currently running a number of sites using the RT61 WLAN chipset.
>From time to time we have fatal roaming problems.
I have collected a trace that show normal and problem situation.
Any help explaning the cause of the problem is apprechiated.
/Lars
[361830.763657] wlan0: To few (3) beacons from current AP 00:0e:d7:ac:84:20 - assume out of range
[361830.763726] phy0: Removed STA 00:0e:d7:ac:84:20
[361830.903691] HW CONFIG: channel=1 freq=2412 phymode=2
[361830.959483] HW CONFIG: channel=6 freq=2437 phymode=2
[361831.032651] HW CONFIG: channel=7 freq=2442 phymode=2
[361831.104153] HW CONFIG: channel=11 freq=2462 phymode=2
[361831.174702] HW CONFIG: channel=13 freq=2472 phymode=2
[361831.239425] HW CONFIG: channel=1 freq=2412 phymode=2
[361831.252992] wlan0: set_encrypt - unknown addr 00:0f:24:d1:5e:e0
[361831.253576] HW CONFIG: channel=1 freq=2412 phymode=2
[361831.256238] wlan0: Initial auth_alg=0
[361831.256287] wlan0: authenticate with AP 00:0e:d7:ac:84:20
[361831.258615] wlan0: RX authentication from 00:0e:d7:ac:84:20 (alg=0 transaction=2 status=0)
[361831.258662] wlan0: authenticated
[361831.258692] wlan0: associate with AP 00:0e:d7:ac:84:20
[361831.260485] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 4, CWmax: 10, Aifs: 2.
[361831.260544] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 4, CWmax: 10, Aifs: 2.
[361831.260586] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 2 - CWmin: 4, CWmax: 10, Aifs: 2.
[361831.260628] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 3 - CWmin: 4, CWmax: 10, Aifs: 2.
[361831.260670] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 4 - CWmin: 4, CWmax: 10, Aifs: 2.
[361831.260712] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 7 - CWmin: 5, CWmax: 10, Aifs: 2.
[361831.261031] wlan0: Initial auth_alg=0
[361831.261071] wlan0: authenticate with AP 00:0f:24:d1:5e:e0
[361831.282732] wlan0: RX authentication from 00:0f:24:d1:5e:e0 (alg=0 transaction=2 status=0)
[361831.282783] wlan0: authenticated
[361831.283546] wlan0: associate with AP 00:0f:24:d1:5e:e0
[361831.295124] wlan0: RX ReassocResp from 00:0f:24:d1:5e:e0 (capab=0x431 status=0 aid=95)
[361831.295221] wlan0: associated
[361831.295269] wlan0: CTS protection enabled (BSSID=00:0f:24:d1:5e:e0)
[361831.295573] phy0: Added STA 00:0f:24:d1:5e:e0
[361831.295628] wlan0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 burst=0
[361831.295668] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 2 - CWmin: 4, CWmax: 10, Aifs: 3.
[361831.295712] wlan0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 burst=0
[361831.295749] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 3 - CWmin: 4, CWmax: 10, Aifs: 7.
[361831.295792] wlan0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 burst=30
[361831.295829] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 3, CWmax: 4, Aifs: 2.
[361831.295872] wlan0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 burst=15
[361831.295908] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 2, CWmax: 3, Aifs: 2.
CASE 1: The above trace is a typical trace from a roaming atempt.
==========================================================
361830.763657 We lost conatct with current AP 00:0e:d7:ac:84:20
361831.252992 We have selected the new AP 00:0f:24:d1:5e:e0
361831.256287 Why do we try to authenticate with previous AP 00:0e:d7:ac:84:20 ? <-----
361831.261071 Finaly we selected the correct AP 00:0f:24:d1:5e:e0
361831.295573 We are up and running
[362123.346748] wlan0: To few (3) beacons from current AP 00:0f:24:d1:5e:e0 - assume out of range
[362123.346815] phy0: Removed STA 00:0f:24:d1:5e:e0
[362123.480600] HW CONFIG: channel=1 freq=2412 phymode=2
[362123.539316] HW CONFIG: channel=6 freq=2437 phymode=2
[362123.611786] HW CONFIG: channel=7 freq=2442 phymode=2
[362123.683135] HW CONFIG: channel=11 freq=2462 phymode=2
[362123.746670] HW CONFIG: channel=13 freq=2472 phymode=2
[362123.822505] HW CONFIG: channel=1 freq=2412 phymode=2
[362123.842242] wlan0: set_encrypt - unknown addr 00:0e:d7:ac:84:20
[362123.852958] HW CONFIG: channel=1 freq=2412 phymode=2
[362123.853081] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 4, CWmax: 10, Aifs: 2.
[362123.853128] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 4, CWmax: 10, Aifs: 2.
[362123.853169] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 2 - CWmin: 4, CWmax: 10, Aifs: 2.
[362123.853211] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 3 - CWmin: 4, CWmax: 10, Aifs: 2.
[362123.853253] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 4 - CWmin: 4, CWmax: 10, Aifs: 2.
[362123.853295] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 7 - CWmin: 5, CWmax: 10, Aifs: 2.
[362123.861530] wlan0: Initial auth_alg=0
[362123.861586] wlan0: authenticate with AP 00:0e:d7:ac:84:20
[362123.864873] wlan0: RX authentication from 00:0e:d7:ac:84:20 (alg=0 transaction=2 status=0)
[362123.864922] wlan0: authenticated
[362123.864952] wlan0: associate with AP 00:0e:d7:ac:84:20
[362123.874048] wlan0: RX ReassocResp from 00:0e:d7:ac:84:20 (capab=0x431 status=0 aid=181)
[362123.874097] wlan0: associated
[362123.874140] wlan0: CTS protection enabled (BSSID=00:0e:d7:ac:84:20)
[362123.874442] phy0: Added STA 00:0e:d7:ac:84:20
[362123.874497] wlan0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 burst=0
[362123.883166] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 2 - CWmin: 4, CWmax: 10, Aifs: 3.
[362123.883217] wlan0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 burst=0
[362123.883255] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 3 - CWmin: 4, CWmax: 10, Aifs: 7.
[362123.883298] wlan0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 burst=30
[362123.883335] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 3, CWmax: 4, Aifs: 2.
[362123.883376] wlan0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 burst=15
[362123.883413] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 2, CWmax: 3, Aifs: 2.
CASE 2: The above trace is a typical trace from a roaming atempt.
==========================================================
362123.346748 We lost conatct with current AP 00:0f:24:d1:5e:e0
362123.842242 We have selected the new AP 00:0e:d7:ac:84:20
362123.861586 We try connect AP 00:0e:d7:ac:84:20
362123.874442 We are up and running
[362441.946825] wlan0: To few (0) beacons from current AP 00:0e:d7:ac:84:20 - assume out of range
[362441.946894] phy0: Removed STA 00:0e:d7:ac:84:20
[362442.087032] HW CONFIG: channel=1 freq=2412 phymode=2
[362442.147484] HW CONFIG: channel=6 freq=2437 phymode=2
[362442.215884] HW CONFIG: channel=7 freq=2442 phymode=2
[362442.287306] HW CONFIG: channel=11 freq=2462 phymode=2
[362442.360678] HW CONFIG: channel=13 freq=2472 phymode=2
[362442.435708] HW CONFIG: channel=1 freq=2412 phymode=2
[362442.449435] wlan0: set_encrypt - unknown addr 00:0f:24:a3:b8:60
[362442.458892] HW CONFIG: channel=7 freq=2442 phymode=2
[362442.466891] wlan0: Initial auth_alg=0
[362442.466944] wlan0: authenticate with AP 00:0e:d7:ac:84:20
[362442.467815] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 4, CWmax: 10, Aifs: 2.
[362442.467875] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 4, CWmax: 10, Aifs: 2.
[362442.467917] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 2 - CWmin: 4, CWmax: 10, Aifs: 2.
[362442.467959] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 3 - CWmin: 4, CWmax: 10, Aifs: 2.
[362442.468000] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 4 - CWmin: 4, CWmax: 10, Aifs: 2.
[362442.468043] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 7 - CWmin: 5, CWmax: 10, Aifs: 2.
[362442.470093] wlan0: Initial auth_alg=0
[362442.470147] wlan0: authenticate with AP 00:0f:24:a3:b8:60
[362442.666716] wlan0: authenticate with AP 00:0f:24:a3:b8:60
[362442.869682] wlan0: authenticate with AP 00:0f:24:a3:b8:60
[362443.066379] wlan0: authentication with AP 00:0f:24:a3:b8:60 timed out
[362444.515475] HW CONFIG: channel=1 freq=2412 phymode=2
[362444.582299] HW CONFIG: channel=6 freq=2437 phymode=2
[362444.664275] HW CONFIG: channel=7 freq=2442 phymode=2
[362444.735721] HW CONFIG: channel=11 freq=2462 phymode=2
[362444.802200] HW CONFIG: channel=13 freq=2472 phymode=2
[362444.875930] HW CONFIG: channel=7 freq=2442 phymode=2
[362444.878856] HW CONFIG: channel=1 freq=2412 phymode=2
[362444.886723] wlan0: Initial auth_alg=0
[362444.886776] wlan0: authenticate with AP 00:0f:24:a3:b8:60
[362444.887643] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 0 - CWmin: 4, CWmax: 10, Aifs: 2.
[362444.887778] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 1 - CWmin: 4, CWmax: 10, Aifs: 2.
[362444.887821] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 2 - CWmin: 4, CWmax: 10, Aifs: 2.
[362444.887863] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 3 - CWmin: 4, CWmax: 10, Aifs: 2.
[362444.887904] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 4 - CWmin: 4, CWmax: 10, Aifs: 2.
[362444.887946] phy0 -> rt2x00mac_conf_tx: Info - Configured TX ring 7 - CWmin: 5, CWmax: 10, Aifs: 2.
[362444.896286] wlan0: RX authentication from 00:0f:24:a3:b8:60 (alg=0 transaction=2 status=0)
[362444.896340] wlan0: authenticated
[362444.896370] wlan0: associate with AP 00:0f:24:a3:b8:60
[362444.904391] wlan0: RX ReassocResp from 00:0f:24:a3:b8:60 (capab=0x431 status=0 aid=126)
[362444.904429] wlan0: associated
[362444.904662] phy0: Added STA 00:0f:24:a3:b8:60
[362444.904800] wlan0: Initial auth_alg=0
[362444.904838] wlan0: authenticate with AP 00:0f:24:a3:b8:60
[362444.908677] wlan0: Initial auth_alg=0
[362444.908735] wlan0: authenticate with AP 00:0f:24:d1:5e:e0
[362445.106501] wlan0: authenticate with AP 00:0f:24:d1:5e:e0
[362445.306037] wlan0: authenticate with AP 00:0f:24:d1:5e:e0
[362445.505964] wlan0: authentication with AP 00:0f:24:d1:5e:e0 timed out
CASE 3: The above trace is a typical trace from a roaming atempt.
===================================================================
362441.946825 We lost conatct with current AP 00:0e:d7:ac:84:20
362442.449435 We have selected the new AP 00:0f:24:a3:b8:60
362442.466944 Why do we try to authenticate with previous AP 00:0e:d7:ac:84:20 ? <-----
362442.470147 Finaly we selected the correct AP 00:0f:24:a3:b8:60
361831.295573 We are up and running
362443.066379 Timeout.
362444.886776 New try with selected AP 00:0f:24:a3:b8:60
362444.904429 Associated
362444.904883 What initiate this 'Initial auth_alg=0' with the associated AP ? <-----
362444.908677 What initiate this 'Initial auth_alg=0' with AP 00:0f:24:d1:5e:e0 ? <-----
362445.505964 No one reacts on the 'timed out' event <-----
>From this point, no WLAN communication was operating.
next reply other threads:[~2008-04-22 16:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-22 15:09 Lars Ericsson [this message]
2008-04-23 8:39 ` Roaming problems Lars Ericsson
2008-04-23 11:12 ` Johannes Berg
2008-04-23 13:53 ` Dan Williams
2008-04-23 14:59 ` Johannes Berg
2008-04-23 16:21 ` Dan Williams
2008-04-23 16:39 ` Johannes Berg
2008-04-23 16:44 ` Lars Ericsson
2008-04-23 16:53 ` Johannes Berg
2008-04-23 17:12 ` Lars Ericsson
2008-04-23 17:59 ` Johannes Berg
2008-04-23 16:27 ` Lars Ericsson
2008-04-23 16:31 ` Dan Williams
2008-04-23 20:47 ` John W. Linville
2008-04-24 6:45 ` Holger Schurig
2008-04-24 9:55 ` Lars Ericsson
2008-04-24 9:59 ` Johannes Berg
2008-04-24 17:36 ` Lars Ericsson
2008-04-26 20:54 ` Johannes Berg
2008-04-28 18:28 ` Lars Ericsson
2008-04-28 18:34 ` Johannes Berg
2008-04-28 18:43 ` Dan Williams
2008-04-28 20:22 ` Lars Ericsson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='00ff01c8a48a$d4063d80$0b3ca8c0@gotws1589' \
--to=lars_ericsson@telia.com \
--cc=hostap@lists.shmoo.com \
--cc=linux-wireless@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.