-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi! I'm trying to run an HT40-enabled AP using the rt2880 mac80211 driver on OpenWrt running on an Rt3050 SoC. Somehow, the performance doesn't differ no matter if HT40 is enabled or not. Though the nominal bitrate shown in iwconfig is 72.2MBit/s for HT20 and 150MBit/s for HT40+/-, the TCP throughput in both cases if around 26MBit/s (which is more or less satisfying for 20MHz, but should be twice as much for 40MHz).
What performance did you experience when using rt2880 in AP mode? Did anyone ever get greenfield 40MHz working in 2.4GHz between two identical rt2880 devices? If so, how did you do that? Details of my setup follow: system type: Ralink RT3350 id:1 rev:2 rt chip: 2872 rf chip: 0005 revision: 0200 register base words wordsize csr 4096 512 4 eeprom 0 136 2 bbp 0 128 1 rf 4 4 4 I'm using kernel 2.6.39.4, compat-wireless-2011-12-01, hostapd-2.0 (20111103). Newer versions of hostapd don't even seem to announce HT40 at all, so the nominal rate doesn't ever exceed 72.2MBit when using newer versions of hostapd. hostapd.conf looks like this: - ------------------------------ ctrl_interface=/var/run/hostapd-phy0 driver=nl80211 wmm_ac_bk_cwmin=4 wmm_ac_bk_cwmax=10 wmm_ac_bk_aifs=7 wmm_ac_bk_txop_limit=0 wmm_ac_bk_acm=0 wmm_ac_be_aifs=3 wmm_ac_be_cwmin=4 wmm_ac_be_cwmax=10 wmm_ac_be_txop_limit=0 wmm_ac_be_acm=0 wmm_ac_vi_aifs=2 wmm_ac_vi_cwmin=3 wmm_ac_vi_cwmax=4 wmm_ac_vi_txop_limit=94 wmm_ac_vi_acm=0 wmm_ac_vo_aifs=2 wmm_ac_vo_cwmin=2 wmm_ac_vo_cwmax=3 wmm_ac_vo_txop_limit=47 wmm_ac_vo_acm=0 tx_queue_data3_aifs=7 tx_queue_data3_cwmin=15 tx_queue_data3_cwmax=1023 tx_queue_data3_burst=0 tx_queue_data2_aifs=3 tx_queue_data2_cwmin=15 tx_queue_data2_cwmax=63 tx_queue_data2_burst=0 tx_queue_data1_aifs=1 tx_queue_data1_cwmin=7 tx_queue_data1_cwmax=15 tx_queue_data1_burst=3.0 tx_queue_data0_aifs=1 tx_queue_data0_cwmin=3 tx_queue_data0_cwmax=7 tx_queue_data0_burst=1.5 hw_mode=g channel=11 noscan=1 logger_syslog=127 logger_syslog_level=2 logger_stdout=127 logger_stdout_level=2 ieee80211n=1 ht_capab=[HT40-][GF][SHORT-GI-20][SHORT-GI-40][RX-STBC1] interface=wlan0 ctrl_interface=/var/run/hostapd-phy0 auth_algs=1 wpa=0 ssid=Allnet bridge=br-lan wmm_enabled=1 bssid=48:02:2a:60:21:a4 ignore_broadcast_ssid=0 - ------------------------------ Best regards Daniel - -- ALLNET GmbH ; Maistr. 2 ; D-82110 Germering ; Germany Tel. +49-89-89422222 - Fax +49-89-89422233 http://www.allnet.de email: Daniel Golle <[email protected]> Schulungs-/Veranstaltungsprogramm: http://www.802lab.de<http://www.802lab.de/> Geschäftsführer: Wolfgang Marcus Bauer Handelsregister München B 95922 ; UST-ID-Nr. DE 128214294 ; St.-Nr.117/115/00164 WEEE-Reg.-NR. DE 13101093 Bankverbindung: Sparkasse Fürstenfeldbruck KTO: 2774594 ; BLZ: 70053070 Swift-Code: BYLADEM1FFB ; IBAN: DE61700530700002774594 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJO8zI6AAoJEDy9cKN/1Et08NUP/inJJBWOJr7znl9c5QoJLKy/ UiB2KH0/gdLkLmnycL5IWuMTPPw4KSLz/UCHbErLXOWTNVWOfaUq+V2LlUbd7qJF 6761CKSAaUgthG+yh8OKMo2r1Wu3wpRWRif1l7lLSkuJf9vYwSViww+WGtdLr3Qn HfVIvxyMkZKjxxVO4v8r3Qd8Ubn/Rn8sOM8mWjXqa7KtgLXkWM5Vwtik3UBhLQkH XMncRs414TKCLwm2i2B3Hx7GjwyDe8dUvX+9XKJpQ4TDOf52cs63asc9u3fp8lkd iHlhyUCu+vBzcSZBjg3FOvnKxe26p327Ag/tYL/4w3O6jfQxk+OZAdGveVVoMhMY gmmlD9zUkDJqxzAAIKdf193u7JE2tLageSoY9KbiC7Q54FdbxB2FDu3y84539/bu o61cGvFNLyeHklVum37lAbAi7SM6r6rx+PzJq4STc90pV/MffiE4MAL1NkBynCse mvuCT5mHl8butGRQ4UuLjMLYd2Bzs8nfWDUyZ/tXRVbVLG1wKiLdB+LoZildLzDx fvNa2thGE5YPDZOvYa9AruB8QLHHYvN+staBmdUvwDMru3mw6JrNAySSpOng0t7X dK/4e9PnnV5kl8ahl+Bng8vSr9t40MykKhXSOUy0/LPUMf4IPkdY6VCePn/2QldV wQSjbppQGeIR+KPfXZSL =vp+Z -----END PGP SIGNATURE----- _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
