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Subject: WMM doesn't work as expected Newsgroups: gmane.linux.drivers.madwifi.devel Date: Tuesday 23rd September 2008 08:38:01 UTC (over 9 years ago) Hi, I'm testing WMM operation and have some problems. When I perform tests with only one station the traffic in AC_BE takes always precedence over all other access categories. For example, if a station has traffic in two access categories - AC_VI and AC_VO, prioritization works as expected and traffic in AC_VO has higher throughput than in AC_VI. If I redirect the traffic from AC_VI to AC_BE, then traffic in AC_BE results suddenly in higher throughput than in AC_VO. Moreover, the traffic in AC_VO can be completely stopped! It seems that the algorithm of internal virtual collision resolution doesn't work correctly and whenever there is some traffic in AC_BE it is served first while the other access categories are served only when AC_BE is empty. Is it some configuration issue? I checked all WMM parameters, everything is configured by default according to WMM spec... Has anyone had such a problem? Is this a driver or hardware issue? Should I just try another wireless card? (I use MadWifi v0.9.4, Gigabyte 802.11abg GNWI01HT cards with Atheros AR5413 chipsets, Ubuntu 7-10). Thanks for any help! Aleksej. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ |
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