* Re: RTL8192SE and 802.11n problem [not found] ` <4E67CEA3.7020709@gmail.com> @ 2011-09-08 1:52 ` Larry Finger 2011-09-08 2:23 ` Larry Finger 1 sibling, 0 replies; 7+ messages in thread From: Larry Finger @ 2011-09-08 1:52 UTC (permalink / raw) To: Stefan Zwanenburg; +Cc: linux-wireless, 'Chaoming_Li' On 09/07/2011 03:05 PM, Stefan Zwanenburg wrote: > > * My NIC variant has the following ID: 10ec:8172. I suppose that means it's an > RTL8192SEvA2. I did not know this at the time of writing however. > * Kernel version: it's a vanilla kernel + gentoo patches (exact gentoo ebuild > version: 3.0.4). > * Driver: I'm using the one for the RTL8192SE that is currently in the kernel > tree, so no compat-wireless. > * Access point: 3Com 3CRWER300-73 with firmware version 1.12.06. > > Anyhow, I've tried the driver on Realtek's site both for the RTL8192se and > RTL8192SEvA2 (after having to rename RX_FLAG_TSFT to RX_FLAG_MACTIME_MPDU, and > adding an include to "linux/proc_fs.h", both to avoid compilation errors), > neither of which allow me to connect over an 802.11n link. At this point, I'm > unsure how to proceed. I've run a netperf test, which maxed out at 22Mbps, and > my router reports my MAC address as being connected over an 11g link. Is there > anything I can do to further prove that I have a problem? Although I do not remember anything in the latest driver revisions that would affect rtl8192se, thus compat-wireless should not be necessary. The unit I reported in my previous message was a 1x1 model. Tonight, I tested a 2x2, which lspci reports as 06:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8192SE Wireless LAN Controller [10ec:8174] (rev 10). The netperf test results are: TCP_MAERTS TX Test: 53.21 53.72 51.59 57.70 55.11 55.13 56.02 52.42 42.90 50.06 TCP_MAERTS RX Test: 57.64 62.44 68.77 61.47 47.29 58.74 63.13 61.91 59.00 63.42 Results: TX: max 57.70, min 42.90. Mean 52.79(3.92) RX: max 68.77, min 47.29. Mean 60.38(5.28) TCP_STREAM TX Test: 73.25 79.46 70.42 66.47 79.26 64.91 68.11 71.63 70.36 65.44 TCP_STREAM RX Test: 46.67 40.17 50.84 49.79 37.89 50.89 43.79 47.76 46.89 49.01 Results: TX: max 79.46, min 64.91. Mean 70.93(4.93) RX: max 50.89, min 37.89. Mean 46.37(4.22) TCP_SENDFILE TX Test: 61.73 74.61 59.25 53.56 51.50 68.91 57.43 62.41 53.91 51.94 TCP_SENDFILE RX Test: 38.76 42.08 47.27 51.58 47.70 51.86 52.09 45.84 44.25 39.48 Results: TX: max 74.61, min 51.50. Mean 59.52(7.23) RX: max 52.09, min 38.76. Mean 46.09(4.69) finger@larrylap:~> iwconfig wlan0 wlan0 IEEE 802.11bgn ESSID:"lwfdjf-n" Mode:Managed Frequency:2.422 GHz Access Point: C0:3F:0E:BE:2B:44 Bit Rate=270 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-35 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 Next, I will test my other card, which is a 1x2 model with kernel 3.0.4. I have also Cc'd Chaoming Li at Realsil, the group that actually wrote the driver. Perhaps their lab has the same AP as yours. Larry ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: RTL8192SE and 802.11n problem [not found] ` <4E67CEA3.7020709@gmail.com> 2011-09-08 1:52 ` RTL8192SE and 802.11n problem Larry Finger @ 2011-09-08 2:23 ` Larry Finger 2011-09-08 2:50 ` Larry Finger 1 sibling, 1 reply; 7+ messages in thread From: Larry Finger @ 2011-09-08 2:23 UTC (permalink / raw) To: Stefan Zwanenburg; +Cc: linux-wireless, 'Chaoming_Li' On 09/07/2011 03:05 PM, Stefan Zwanenburg wrote: > > * My NIC variant has the following ID: 10ec:8172. I suppose that means it's an > RTL8192SEvA2. I did not know this at the time of writing however. > * Kernel version: it's a vanilla kernel + gentoo patches (exact gentoo ebuild > version: 3.0.4). > * Driver: I'm using the one for the RTL8192SE that is currently in the kernel > tree, so no compat-wireless. > * Access point: 3Com 3CRWER300-73 with firmware version 1.12.06. > With kernel 3.0.4: 06:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller [10ec:8172] (rev 10) TCP_MAERTS TX Test: 29.57 33.17 37.99 38.61 37.38 35.34 37.42 14.04 36.08 34.95 TCP_MAERTS RX Test: 30.52 39.50 37.88 30.90 38.60 31.86 47.55 32.86 41.98 41.46 Results: TX: max 38.61, min 14.04. Mean 33.45(6.95) RX: max 47.55, min 30.52. Mean 37.31(5.36) TCP_STREAM TX Test: 32.11 33.20 39.19 32.24 43.94 15.74 27.74 32.75 32.85 33.12 TCP_STREAM RX Test: 35.45 34.24 35.68 34.28 35.23 31.15 30.75 36.01 35.07 35.08 Results: TX: max 43.94, min 15.74. Mean 32.29(6.93) RX: max 36.01, min 30.75. Mean 34.29(1.75) TCP_SENDFILE TX Test: 26.69 30.01 29.32 29.21 29.27 29.87 30.06 29.69 29.25 20.21 TCP_SENDFILE RX Test: 33.72 29.56 36.87 32.65 34.46 33.71 37.67 38.28 36.20 30.50 Results: TX: max 30.06, min 20.21. Mean 28.36(2.87) RX: max 38.28, min 29.56. Mean 34.36(2.79) finger@larrylap:~> iwconfig wlan0 wlan0 IEEE 802.11bgn ESSID:"lwfdjf-n" Mode:Managed Frequency:2.422 GHz Access Point: C0:3F:0E:BE:2B:44 Bit Rate=135 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-35 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 With kernel wireless-testing 3.1-rc4: TCP_MAERTS TX Test: 23.34 48.86 52.67 44.96 50.42112.86 41.24 46.60 50.81 45.24 TCP_MAERTS RX Test: 67.77 75.84 35.60 57.84 55.06 61.65 55.46 59.58 59.65 61.81 Results: TX: max 112.86, min 23.34. Mean 51.70(21.86) RX: max 75.84, min 35.60. Mean 59.03(9.76) TCP_STREAM TX Test: 61.92 61.14 57.27 62.02 58.43 61.41 61.34 62.39 61.45 59.49 TCP_STREAM RX Test: 23.95 39.50 32.49 53.00 44.30 43.82 48.37 45.50 50.54 50.27 Results: TX: max 62.39, min 57.27. Mean 60.69(1.62) RX: max 53.00, min 23.95. Mean 43.17(8.56) TCP_SENDFILE TX Test: 62.51 58.05 58.21 51.26 58.60 57.32 58.36 59.02 51.30 54.72 TCP_SENDFILE RX Test: 45.35 39.31 34.46 31.14 28.40 35.71 40.78 44.67 39.14 36.66 Results: TX: max 62.51, min 51.26. Mean 56.94(3.35) RX: max 45.35, min 28.40. Mean 37.56(5.16) finger@larrylap:~> iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan8 IEEE 802.11bgn ESSID:"lwfdjf-n" Mode:Managed Frequency:2.422 GHz Access Point: C0:3F:0E:BE:2B:44 Bit Rate=135 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-35 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 It turns out the performance is quite a bit higher with 3.1-rc4 (actually 3.2 wireless) than it is with 3.0.4. If possible, could you please try the latest compat-wireless, either as a package or as downloaded source? In the meantine, I will bisect between the current wireless-testing and 3.0, and test the 3.1-rc4 aminline kernel. Larry ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: RTL8192SE and 802.11n problem 2011-09-08 2:23 ` Larry Finger @ 2011-09-08 2:50 ` Larry Finger 2011-09-08 3:23 ` Stefan Zwanenburg 0 siblings, 1 reply; 7+ messages in thread From: Larry Finger @ 2011-09-08 2:50 UTC (permalink / raw) To: Stefan Zwanenburg; +Cc: linux-wireless, 'Chaoming_Li' Stefan, I did finish the complete set of tests with my RTL8191SEvB Wireless LAN Controller [10ec:8172] (rev 10). The results for the tests are as follows: TCP_MAERTS: kernel 3.0.4: Results: TX: max 38.61, min 14.04. Mean 33.45(6.95) RX: max 47.55, min 30.52. Mean 37.31(5.36) 3.1-rc4 - Mainline: Results: TX: max 57.70, min 42.90. Mean 52.79(3.92) RX: max 68.77, min 47.29. Mean 60.38(5.28) 3.1-rc4 - wireless-testing: Results: TX: max 112.86, min 23.34. Mean 51.70(21.86) RX: max 75.84, min 35.60. Mean 59.03(9.76) TCP_STREAM: Kernel 3.0.4: Results: TX: max 43.94, min 15.74. Mean 32.29(6.93) RX: max 36.01, min 30.75. Mean 34.29(1.75) Kernel 3.1-rc4 from mainline: Results: TX: max 59.73, min 23.48. Mean 47.59(12.33) RX: max 49.89, min 25.14. Mean 38.26(7.32) Kernel 3.1-rc4 from wireless-testing: Results: TX: max 62.39, min 57.27. Mean 60.69(1.62) RX: max 53.00, min 23.95. Mean 43.17(8.56) TCP_SENDFILE: Kernel 3.0.4: Results: TX: max 30.06, min 20.21. Mean 28.36(2.87) RX: max 38.28, min 29.56. Mean 34.36(2.79) Kernel 3.1-rc4 from mainline: Results: TX: max 70.25, min 2.64. Mean 42.59(18.30) RX: max 44.85, min 33.12. Mean 40.83(4.04) Kernel 3.1-rc4 from wireless-testing: Results: TX: max 62.51, min 51.26. Mean 56.94(3.35) RX: max 45.35, min 28.40. Mean 37.56(5.16) It seems that kernel 3.1-rc4 from mainline is quite a bit faster than 3.0.4, but I don't know why. The 3.1-rc4 driver from wireless-testing may be a bit quicker, but the difference is not that great. My next step will be to bisect the mainline tree to see if I can find a commit that has a big effect. Please open a bug at bugzilla.kernel.org on this issue, if you have not already done so, and send me the bug number. Larry ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: RTL8192SE and 802.11n problem 2011-09-08 2:50 ` Larry Finger @ 2011-09-08 3:23 ` Stefan Zwanenburg 2011-09-08 3:42 ` Larry Finger 0 siblings, 1 reply; 7+ messages in thread From: Stefan Zwanenburg @ 2011-09-08 3:23 UTC (permalink / raw) To: Larry Finger; +Cc: linux-wireless, 'Chaoming_Li' On 09/08/2011 04:50 AM, Larry Finger wrote: > Stefan, > > I did finish the complete set of tests with my RTL8191SEvB Wireless > LAN Controller [10ec:8172] (rev 10). The results for the tests are as > follows: > > TCP_MAERTS: > > kernel 3.0.4: > > Results: TX: max 38.61, min 14.04. Mean 33.45(6.95) > RX: max 47.55, min 30.52. Mean 37.31(5.36) > > 3.1-rc4 - Mainline: > > Results: TX: max 57.70, min 42.90. Mean 52.79(3.92) > RX: max 68.77, min 47.29. Mean 60.38(5.28) > > 3.1-rc4 - wireless-testing: > > Results: TX: max 112.86, min 23.34. Mean 51.70(21.86) > RX: max 75.84, min 35.60. Mean 59.03(9.76) > > TCP_STREAM: > > Kernel 3.0.4: > > Results: TX: max 43.94, min 15.74. Mean 32.29(6.93) > RX: max 36.01, min 30.75. Mean 34.29(1.75) > > Kernel 3.1-rc4 from mainline: > > Results: TX: max 59.73, min 23.48. Mean 47.59(12.33) > RX: max 49.89, min 25.14. Mean 38.26(7.32) > > Kernel 3.1-rc4 from wireless-testing: > > Results: TX: max 62.39, min 57.27. Mean 60.69(1.62) > RX: max 53.00, min 23.95. Mean 43.17(8.56) > > TCP_SENDFILE: > > Kernel 3.0.4: > > Results: TX: max 30.06, min 20.21. Mean 28.36(2.87) > RX: max 38.28, min 29.56. Mean 34.36(2.79) > > Kernel 3.1-rc4 from mainline: > > Results: TX: max 70.25, min 2.64. Mean 42.59(18.30) > RX: max 44.85, min 33.12. Mean 40.83(4.04) > > Kernel 3.1-rc4 from wireless-testing: > > Results: TX: max 62.51, min 51.26. Mean 56.94(3.35) > RX: max 45.35, min 28.40. Mean 37.56(5.16) > > It seems that kernel 3.1-rc4 from mainline is quite a bit faster than > 3.0.4, but I don't know why. The 3.1-rc4 driver from wireless-testing > may be a bit quicker, but the difference is not that great. > > My next step will be to bisect the mainline tree to see if I can find > a commit that has a big effect. Please open a bug at > bugzilla.kernel.org on this issue, if you have not already done so, > and send me the bug number. > > Larry Before you continue down this path, I have to ask you something: do you think the rate of my connection would increase if I stress it enough? By this I mean: initially, it appears I have a (theoretical maximum) bitrate of 54Mbps upon connecting to my AP; will the bitrate increase when running something like netperf for long enough? If not, I'm not sure you understood my problem. I don't mind the bitrate so much if it weren't for the fact that I should be associating with my AP over an 802.11n link (since both my NIC and AP should be capable of this), which I cannot. The AP itself (which can display a list of its wireless clients including MAC addresses and link type) reports that I'm connected over an 802.11g link. I'd hate for you to put more time into this if we have indeed misunderstood one another. Anyway, I'm more than willing to try out the 3.1-rc4 mainline kernel if that would be of any help. However, it will have to wait until tomorrow, since it's pretty much the end of the night in my timezone, and I have a busy day tomorrow. I'll also file a bug report tomorrow, if I haven't heard back from you regarding our possible misunderstanding. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: RTL8192SE and 802.11n problem 2011-09-08 3:23 ` Stefan Zwanenburg @ 2011-09-08 3:42 ` Larry Finger [not found] ` <8117B559D4E64A83837479A8C342A5CA@realsil.com.cn> 0 siblings, 1 reply; 7+ messages in thread From: Larry Finger @ 2011-09-08 3:42 UTC (permalink / raw) To: Stefan Zwanenburg; +Cc: linux-wireless, 'Chaoming_Li' On 09/07/2011 10:23 PM, Stefan Zwanenburg wrote: > I cannot. The AP itself (which can display a list of its wireless > clients including MAC addresses and link type) reports that I'm > connected over an 802.11g link. > I'd hate for you to put more time into this if we have indeed > misunderstood one another. It is not a matter of "training". If the AP says it is a G connection, then the rate will never be more than 54 Mbps. > Anyway, I'm more than willing to try out the 3.1-rc4 mainline kernel if > that would be of any help. However, it will have to wait until tomorrow, > since it's pretty much the end of the night in my timezone, and I have a > busy day tomorrow. I'll also file a bug report tomorrow, if I haven't > heard back from you regarding our possible misunderstanding. I think it may be an incompatibility with that AP, but I will wait for Chaoming to check that. In any case, I would like to know what change increases the rate, thus I'll do the bisection. Larry ^ permalink raw reply [flat|nested] 7+ messages in thread
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* Re: 答复: 答复: 答复: RTL8192SE and 802.11n problem [not found] ` <1903155944F64F00AC0C401593C20923@realsil.com.cn> @ 2011-09-19 20:04 ` Stefan Zwanenburg 0 siblings, 0 replies; 7+ messages in thread From: Stefan Zwanenburg @ 2011-09-19 20:04 UTC (permalink / raw) To: 李朝明; +Cc: 'Larry Finger', linux-wireless On 09/19/2011 06:41 AM, 李朝明 wrote: > Dear Sir: > > Yes, sniffer can help, Could you help to catch the authentication > and association packet and send it to me。 > > Best Regards， > lizhaoming > Find below the output of wpa_supplicant with the -ddd switch. If that is not the information you required (ie: you need even rawer logging or somesuch), please tell me what I need to do, or where I might find the information to do what I need to do. Initializing interface 'wlan0' conf '/home/psychotic/wpa.conf' driver 'nl80211' ctrl_interface 'N/A' bridge 'N/A' Configuration file '/home/psychotic/wpa.conf' -> '/home/psychotic/wpa.conf' Reading configuration file '/home/psychotic/wpa.conf' ap_scan=1 ctrl_interface='DIR=/var/run/wpa_supplicant GROUP=wheel' Line: 3 - start of a new network block ssid - hexdump_ascii(len=10): 50 65 72 66 6f 72 61 74 6f 72 Perforator scan_ssid=1 (0x1) proto: 0x3 key_mgmt: 0x2 pairwise: 0x18 group: 0x18 PSK - hexdump(len=32): [REMOVED] Priority group 0 id=0 ssid='Perforator' netlink: Operstate: linkmode=1, operstate=5 Own MAC address: 1c:4b:d6:69:6a:dc wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=0 set_tx=0 seq_len=0 key_len=0 wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=1 set_tx=0 seq_len=0 key_len=0 wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=2 set_tx=0 seq_len=0 key_len=0 wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=3 set_tx=0 seq_len=0 key_len=0 RSN: flushing PMKID list in the driver Setting scan request: 0 sec 100000 usec EAPOL: SUPP_PAE entering state DISCONNECTED EAPOL: Supplicant port status: Unauthorized EAPOL: KEY_RX entering state NO_KEY_RECEIVE EAPOL: SUPP_BE entering state INITIALIZE EAP: EAP entering state DISABLED EAPOL: Supplicant port status: Unauthorized EAPOL: Supplicant port status: Unauthorized ctrl_interface_group=10 (from group name 'wheel') Added interface wlan0 RTM_NEWLINK: operstate=0 ifi_flags=0x1003 ([UP]) RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added State: DISCONNECTED -> SCANNING Scan SSID - hexdump_ascii(len=10): 50 65 72 66 6f 72 61 74 6f 72 Perforator Starting AP scan for wildcard SSID nl80211: Scan SSID - hexdump_ascii(len=10): 50 65 72 66 6f 72 61 74 6f 72 Perforator nl80211: Scan SSID - hexdump_ascii(len=0): [NULL] Scan requested (ret=0) - scan timeout 10 seconds nl80211: Event message available nl80211: Scan trigger EAPOL: disable timer tick EAPOL: Supplicant port status: Unauthorized nl80211: Event message available nl80211: New scan results available Received scan results (8 BSSes) BSS: Start scan result update 1 BSS: Add new id 0 BSSID 80:c6:ab:1e:48:d3 SSID 'UPC0038938' BSS: Add new id 1 BSSID 00:14:7f:c6:a0:bc SSID 'SpeedTouch5E1151' BSS: Add new id 2 BSSID 00:18:f6:e9:22:07 SSID 'Thomson104ABB' BSS: Add new id 3 BSSID 00:23:cd:11:e9:c2 SSID 'Sloot' BSS: Add new id 4 BSSID 00:1e:c1:a2:01:5a SSID 'Perforator' BSS: Add new id 5 BSSID 00:1e:2a:06:c7:f8 SSID 'NETGEAR' BSS: Add new id 6 BSSID c0:c1:c0:20:c6:3f SSID 'Cisco36513' BSS: Add new id 7 BSSID 00:25:9c:df:0a:6d SSID 'Linksys-120n' New scan results available Selecting BSS from priority group 0 Try to find WPA-enabled AP 0: 80:c6:ab:1e:48:d3 ssid='UPC0038938' wpa_ie_len=28 rsn_ie_len=24 caps=0x411 skip - SSID mismatch 1: 00:14:7f:c6:a0:bc ssid='SpeedTouch5E1151' wpa_ie_len=24 rsn_ie_len=0 caps=0x411 skip - SSID mismatch 2: 00:18:f6:e9:22:07 ssid='Thomson104ABB' wpa_ie_len=28 rsn_ie_len=24 caps=0x411 skip - SSID mismatch 3: 00:23:cd:11:e9:c2 ssid='Sloot' wpa_ie_len=0 rsn_ie_len=24 caps=0x431 skip - SSID mismatch 4: 00:1e:c1:a2:01:5a ssid='Perforator' wpa_ie_len=0 rsn_ie_len=20 caps=0x411 selected based on RSN IE selected WPA AP 00:1e:c1:a2:01:5a ssid='Perforator' Automatic auth_alg selection: 0x1 RSN: using IEEE 802.11i/D9.0 WPA: Selected cipher suites: group 16 pairwise 16 key_mgmt 2 proto 2 WPA: clearing AP WPA IE WPA: set AP RSN IE - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 01 00 WPA: using GTK CCMP WPA: using PTK CCMP WPA: using KEY_MGMT WPA-PSK WPA: Set own WPA IE default - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 Cancelling scan request Trying to authenticate with 00:1e:c1:a2:01:5a (SSID='Perforator' freq=2442 MHz) No keys have been configured - skip key clearing State: SCANNING -> AUTHENTICATING EAPOL: External notification - EAP success=0 EAPOL: Supplicant port status: Unauthorized EAPOL: External notification - EAP fail=0 EAPOL: Supplicant port status: Unauthorized EAPOL: External notification - portControl=Auto EAPOL: Supplicant port status: Unauthorized nl80211: Authenticate (ifindex=6) * bssid=00:1e:c1:a2:01:5a * freq=2442 * SSID - hexdump_ascii(len=10): 50 65 72 66 6f 72 61 74 6f 72 Perforator * IEs - hexdump(len=0): [NULL] * Auth Type 0 nl80211: Authentication request send successfully RTM_NEWLINK: operstate=0 ifi_flags=0x1003 ([UP]) RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added nl80211: Event message available nl80211: MLME event 37 nl80211: MLME event frame - hexdump(len=30): b0 00 32 00 1c 4b d6 69 6a dc 00 1e c1 a2 01 5a 00 1e c1 a2 01 5a d0 3c 00 00 02 00 00 00 SME: Authentication response: peer=00:1e:c1:a2:01:5a auth_type=0 status_code=0 SME: Authentication response IEs - hexdump(len=0): [NULL] Trying to associate with 00:1e:c1:a2:01:5a (SSID='Perforator' freq=2442 MHz) State: AUTHENTICATING -> ASSOCIATING wpa_driver_nl80211_set_operstate: operstate 0->0 (DORMANT) netlink: Operstate: linkmode=-1, operstate=5 WPA: set own WPA/RSN IE - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 nl80211: Associate (ifindex=6) * bssid=00:1e:c1:a2:01:5a * freq=2442 * SSID - hexdump_ascii(len=10): 50 65 72 66 6f 72 61 74 6f 72 Perforator * IEs - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 nl80211: Association request send successfully nl80211: Event message available nl80211: Ignored unknown event (cmd=19) nl80211: Event message available nl80211: MLME event 38 nl80211: MLME event frame - hexdump(len=55): 10 00 32 00 1c 4b d6 69 6a dc 00 1e c1 a2 01 5a 00 1e c1 a2 01 5a e0 3c 11 04 00 00 02 c0 01 08 82 84 8b 96 12 24 48 6c 32 04 0c 18 30 60 dd 07 00 0c 43 04 00 00 00 Association info event resp_ies - hexdump(len=25): 01 08 82 84 8b 96 12 24 48 6c 32 04 0c 18 30 60 dd 07 00 0c 43 04 00 00 00 freq=2442 MHz State: ASSOCIATING -> ASSOCIATED wpa_driver_nl80211_set_operstate: operstate 0->0 (DORMANT) netlink: Operstate: linkmode=-1, operstate=5 Associated to a new BSS: BSSID=00:1e:c1:a2:01:5a No keys have been configured - skip key clearing Associated with 00:1e:c1:a2:01:5a WPA: Association event - clear replay counter WPA: Clear old PTK EAPOL: External notification - portEnabled=0 EAPOL: Supplicant port status: Unauthorized EAPOL: External notification - portValid=0 EAPOL: Supplicant port status: Unauthorized EAPOL: External notification - EAP success=0 EAPOL: Supplicant port status: Unauthorized EAPOL: External notification - portEnabled=1 EAPOL: SUPP_PAE entering state CONNECTING EAPOL: enable timer tick EAPOL: SUPP_BE entering state IDLE Setting authentication timeout: 10 sec 0 usec Cancelling scan request RTM_NEWLINK: operstate=0 ifi_flags=0x11003 ([UP][LOWER_UP]) RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added RTM_NEWLINK: operstate=0 ifi_flags=0x11003 ([UP][LOWER_UP]) RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added RTM_NEWLINK: operstate=0 ifi_flags=0x11003 ([UP][LOWER_UP]) RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added nl80211: Event message available nl80211: Ignore connect event (cmd=46) when using userspace SME RX EAPOL from 00:1e:c1:a2:01:5a RX EAPOL - hexdump(len=121): 01 03 00 75 02 00 8a 00 10 00 00 00 00 00 00 0a 48 bf 66 e9 22 34 9a 54 97 4a d1 f4 0f 68 ea 96 50 bb 75 fd 8f 8d ae 98 95 06 c8 d6 60 fd b7 89 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 16 dd 14 00 0f ac 04 3a d1 08 d5 c1 2d d5 21 fd b4 64 fb 3b 2e 1f 46 Setting authentication timeout: 10 sec 0 usec IEEE 802.1X RX: version=1 type=3 length=117 EAPOL-Key type=2 key_info 0x8a (ver=2 keyidx=0 rsvd=0 Pairwise Ack) key_length=16 key_data_length=22 replay_counter - hexdump(len=8): 00 00 00 00 00 00 0a 48 key_nonce - hexdump(len=32): bf 66 e9 22 34 9a 54 97 4a d1 f4 0f 68 ea 96 50 bb 75 fd 8f 8d ae 98 95 06 c8 d6 60 fd b7 89 1b key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 key_rsc - hexdump(len=8): 00 00 00 00 00 00 00 00 key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00 key_mic - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 WPA: RX EAPOL-Key - hexdump(len=121): 01 03 00 75 02 00 8a 00 10 00 00 00 00 00 00 0a 48 bf 66 e9 22 34 9a 54 97 4a d1 f4 0f 68 ea 96 50 bb 75 fd 8f 8d ae 98 95 06 c8 d6 60 fd b7 89 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 16 dd 14 00 0f ac 04 3a d1 08 d5 c1 2d d5 21 fd b4 64 fb 3b 2e 1f 46 State: ASSOCIATED -> 4WAY_HANDSHAKE WPA: RX message 1 of 4-Way Handshake from 00:1e:c1:a2:01:5a (ver=2) RSN: msg 1/4 key data - hexdump(len=22): dd 14 00 0f ac 04 3a d1 08 d5 c1 2d d5 21 fd b4 64 fb 3b 2e 1f 46 WPA: PMKID in EAPOL-Key - hexdump(len=22): dd 14 00 0f ac 04 3a d1 08 d5 c1 2d d5 21 fd b4 64 fb 3b 2e 1f 46 RSN: PMKID from Authenticator - hexdump(len=16): 3a d1 08 d5 c1 2d d5 21 fd b4 64 fb 3b 2e 1f 46 RSN: no matching PMKID found WPA: Renewed SNonce - hexdump(len=32): d3 ce 10 ea a3 0b 3e b0 bc 40 91 fb f2 ee 00 a2 9e f6 a2 08 50 49 8b fe 94 93 d1 66 9c 62 92 7f WPA: PTK derivation - A1=1c:4b:d6:69:6a:dc A2=00:1e:c1:a2:01:5a WPA: PMK - hexdump(len=32): [REMOVED] WPA: PTK - hexdump(len=48): [REMOVED] WPA: WPA IE for msg 2/4 - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 WPA: Sending EAPOL-Key 2/4 WPA: TX EAPOL-Key - hexdump(len=121): 01 03 00 75 02 01 0a 00 00 00 00 00 00 00 00 0a 48 d3 ce 10 ea a3 0b 3e b0 bc 40 91 fb f2 ee 00 a2 9e f6 a2 08 50 49 8b fe 94 93 d1 66 9c 62 92 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7e 86 e7 f4 dd 37 0a c6 88 2a 45 79 ea 07 9c 2d 00 16 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 00 00 RX EAPOL from 00:1e:c1:a2:01:5a RX EAPOL - hexdump(len=155): 01 03 00 97 02 13 ca 00 10 00 00 00 00 00 00 0a 49 bf 66 e9 22 34 9a 54 97 4a d1 f4 0f 68 ea 96 50 bb 75 fd 8f 8d ae 98 95 06 c8 d6 60 fd b7 89 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3f e3 04 00 00 00 00 00 00 00 00 00 00 00 00 00 72 62 5e ad 3f fa de fa a8 df 9c 8b 28 54 ac 52 00 38 af f7 5a c8 75 be 95 65 97 ce 28 db d4 84 fd 79 db 70 50 31 4e 48 5e 1b dc 04 fa c8 8f 88 ba 1f e8 55 04 60 a0 f2 a5 84 ca 78 bb de db 39 d3 18 f4 f9 26 1e 79 a0 e4 bf IEEE 802.1X RX: version=1 type=3 length=151 EAPOL-Key type=2 key_info 0x13ca (ver=2 keyidx=0 rsvd=0 Pairwise Install Ack MIC Secure Encr) key_length=16 key_data_length=56 replay_counter - hexdump(len=8): 00 00 00 00 00 00 0a 49 key_nonce - hexdump(len=32): bf 66 e9 22 34 9a 54 97 4a d1 f4 0f 68 ea 96 50 bb 75 fd 8f 8d ae 98 95 06 c8 d6 60 fd b7 89 1b key_iv - hexdump(len=16): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 key_rsc - hexdump(len=8): 3f e3 04 00 00 00 00 00 key_id (reserved) - hexdump(len=8): 00 00 00 00 00 00 00 00 key_mic - hexdump(len=16): 72 62 5e ad 3f fa de fa a8 df 9c 8b 28 54 ac 52 WPA: RX EAPOL-Key - hexdump(len=155): 01 03 00 97 02 13 ca 00 10 00 00 00 00 00 00 0a 49 bf 66 e9 22 34 9a 54 97 4a d1 f4 0f 68 ea 96 50 bb 75 fd 8f 8d ae 98 95 06 c8 d6 60 fd b7 89 1b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3f e3 04 00 00 00 00 00 00 00 00 00 00 00 00 00 72 62 5e ad 3f fa de fa a8 df 9c 8b 28 54 ac 52 00 38 af f7 5a c8 75 be 95 65 97 ce 28 db d4 84 fd 79 db 70 50 31 4e 48 5e 1b dc 04 fa c8 8f 88 ba 1f e8 55 04 60 a0 f2 a5 84 ca 78 bb de db 39 d3 18 f4 f9 26 1e 79 a0 e4 bf RSN: encrypted key data - hexdump(len=56): af f7 5a c8 75 be 95 65 97 ce 28 db d4 84 fd 79 db 70 50 31 4e 48 5e 1b dc 04 fa c8 8f 88 ba 1f e8 55 04 60 a0 f2 a5 84 ca 78 bb de db 39 d3 18 f4 f9 26 1e 79 a0 e4 bf WPA: decrypted EAPOL-Key key data - hexdump(len=48): [REMOVED] State: 4WAY_HANDSHAKE -> 4WAY_HANDSHAKE WPA: RX message 3 of 4-Way Handshake from 00:1e:c1:a2:01:5a (ver=2) WPA: IE KeyData - hexdump(len=48): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 01 00 dd 16 00 0f ac 01 03 00 9f a8 6b 04 f7 5c 23 20 14 e0 8a bd 0e de 92 10 dd 00 WPA: RSN IE in EAPOL-Key - hexdump(len=22): 30 14 01 00 00 0f ac 04 01 00 00 0f ac 04 01 00 00 0f ac 02 01 00 WPA: GTK in EAPOL-Key - hexdump(len=24): [REMOVED] WPA: Sending EAPOL-Key 4/4 WPA: TX EAPOL-Key - hexdump(len=99): 01 03 00 5f 02 03 0a 00 00 00 00 00 00 00 00 0a 49 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ca 0c ff 3c 6b 08 dd b6 71 12 6f 83 97 7f 33 4c 00 00 WPA: Installing PTK to the driver. wpa_driver_nl80211_set_key: ifindex=6 alg=3 addr=0xdc85b0 key_idx=0 set_tx=1 seq_len=6 key_len=16 addr=00:1e:c1:a2:01:5a EAPOL: External notification - portValid=1 State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE RSN: received GTK in pairwise handshake - hexdump(len=18): [REMOVED] WPA: Group Key - hexdump(len=16): [REMOVED] WPA: Installing GTK to the driver (keyidx=3 tx=0 len=16). WPA: RSC - hexdump(len=6): 3f e3 04 00 00 00 wpa_driver_nl80211_set_key: ifindex=6 alg=3 addr=0x450c7b key_idx=3 set_tx=0 seq_len=6 key_len=16 WPA: Key negotiation completed with 00:1e:c1:a2:01:5a [PTK=CCMP GTK=CCMP] Cancelling authentication timeout State: GROUP_HANDSHAKE -> COMPLETED CTRL-EVENT-CONNECTED - Connection to 00:1e:c1:a2:01:5a completed (auth) [id=0 id_str=] wpa_driver_nl80211_set_operstate: operstate 0->1 (UP) netlink: Operstate: linkmode=-1, operstate=6 EAPOL: External notification - portValid=1 EAPOL: External notification - EAP success=1 EAPOL: SUPP_PAE entering state AUTHENTICATING EAPOL: SUPP_BE entering state SUCCESS EAP: EAP entering state DISABLED EAPOL: SUPP_PAE entering state AUTHENTICATED EAPOL: Supplicant port status: Authorized EAPOL: SUPP_BE entering state IDLE EAPOL authentication completed successfully RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP]) RTM_NEWLINK, IFLA_IFNAME: Interface 'wlan0' added EAPOL: startWhen --> 0 EAPOL: disable timer tick CTRL-EVENT-TERMINATING - signal 2 received Removing interface wlan0 wpa_driver_nl80211_deauthenticate wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=0 set_tx=0 seq_len=0 key_len=0 wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=1 set_tx=0 seq_len=0 key_len=0 wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=2 set_tx=0 seq_len=0 key_len=0 wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0x450c7b key_idx=3 set_tx=0 seq_len=0 key_len=0 wpa_driver_nl80211_set_key: ifindex=6 alg=0 addr=0xdc7a80 key_idx=0 set_tx=0 seq_len=0 key_len=0 addr=00:1e:c1:a2:01:5a State: COMPLETED -> DISCONNECTED wpa_driver_nl80211_set_operstate: operstate 1->0 (DORMANT) netlink: Operstate: linkmode=-1, operstate=5 EAPOL: External notification - portEnabled=0 EAPOL: SUPP_PAE entering state DISCONNECTED EAPOL: Supplicant port status: Unauthorized EAPOL: SUPP_BE entering state INITIALIZE EAPOL: Supplicant port status: Unauthorized EAPOL: External notification - portValid=0 EAPOL: Supplicant port status: Unauthorized EAPOL: External notification - EAP success=0 EAPOL: Supplicant port status: Unauthorized No keys have been configured - skip key clearing BSS: Remove id 0 BSSID 80:c6:ab:1e:48:d3 SSID 'UPC0038938' BSS: Remove id 1 BSSID 00:14:7f:c6:a0:bc SSID 'SpeedTouch5E1151' BSS: Remove id 2 BSSID 00:18:f6:e9:22:07 SSID 'Thomson104ABB' BSS: Remove id 3 BSSID 00:23:cd:11:e9:c2 SSID 'Sloot' BSS: Remove id 4 BSSID 00:1e:c1:a2:01:5a SSID 'Perforator' BSS: Remove id 5 BSSID 00:1e:2a:06:c7:f8 SSID 'NETGEAR' BSS: Remove id 6 BSSID c0:c1:c0:20:c6:3f SSID 'Cisco36513' BSS: Remove id 7 BSSID 00:25:9c:df:0a:6d SSID 'Linksys-120n' Cancelling scan request Cancelling authentication timeout netlink: Operstate: linkmode=0, operstate=6 Thanks again! Stefan Zwanenburg ^ permalink raw reply [flat|nested] 7+ messages in thread
[parent not found: <4E6772B6.603@gmail.com>]
* Re: RTL8192SE and 802.11n problem [not found] <4E6772B6.603@gmail.com> @ 2011-09-07 14:30 ` Larry Finger 0 siblings, 0 replies; 7+ messages in thread From: Larry Finger @ 2011-09-07 14:30 UTC (permalink / raw) To: Stefan Zwanenburg; +Cc: wireless On 09/07/2011 08:33 AM, Stefan Zwanenburg wrote: > Dear Larry, > > First of all, I hope you don't mind me contacting you over this matter. I have a > problem with my RTL8192SE NIC, for which I've sought help at linux-wireless > prior to mailing you (to no avail). If you do mind, please pretend this message > was never sent. If you, in fact, do not mind, keep on reading. > > I have noticed that I get rather disappointing speeds when using my wireless > NIC. So I decided to investigate the matter. What I found out is that I simply > cannot connect to an AP (or my AP, for I haven't had the opportunity to test it > with another) using 802.11n. In fact, when my AP is set to 802.11n only, my NIC > flat out refuses to connect whatsoever. When the AP is set to do both 11g and > 11n, I get to connect (over 11g), thus resulting in a maximum bitrate of 54Mbps, > which is not what I expected. > > I hope my description of the problem is coherent thus far. When asking for help > on the linux-wireless IRC channel, I was asked to pastebin some information, > which I'm going to copy here: > > output of iw dev wlan0 scan (with information not pertaining to my AP removed): > > BSS 00:1e:c1:a2:01:5a (on wlan0) -- associated > TSF: 124096205146 usec (1d, 10:28:16) > freq: 2442 > beacon interval: 100 > capability: ESS Privacy ShortSlotTime (0x0411) > signal: -41.00 dBm > last seen: 292 ms ago > Information elements from Probe Response frame: > SSID: Perforator > Supported rates: 1.0* 2.0* 5.5* 11.0* 9.0 18.0 36.0 54.0 > DS Parameter set: channel 7 > ERP: Use_Protection Barker_Preamble_Mode > Extended supported rates: 6.0 12.0 24.0 48.0 > HT capabilities: > Capabilities: 0x11ee > HT20/HT40 > SM Power Save disabled > RX HT20 SGI > RX HT40 SGI > TX STBC > RX STBC 1-stream > Max AMSDU length: 3839 bytes > DSSS/CCK HT40 > Maximum RX AMPDU length 65535 bytes (exponent: 0x003) > Minimum RX AMPDU time spacing: 4 usec (0x05) > HT RX MCS rate indexes supported: 0-15, 32 > HT TX MCS rate indexes are undefined > HT operation: > * primary channel: 7 > * secondary channel offset: below > * STA channel width: any > * RIFS: 0 > * HT protection: non-HT mixed > * non-GF present: 1 > * OBSS non-GF present: 0 > * dual beacon: 0 > * dual CTS protection: 0 > * STBC beacon: 0 > * L-SIG TXOP Prot: 0 > * PCO active: 0 > * PCO phase: 0 > RSN: * Version: 1 > * Group cipher: CCMP > * Pairwise ciphers: CCMP > * Authentication suites: PSK > * Capabilities: PreAuth (0x0001) > Extended capabilities: HT Information Exchange Supported > Country: NL Environment: Indoor/Outdoor > Channels [1 - 13] @ 16 dBm > > output of iw list: > > Wiphy phy0 > Band 1: > Capabilities: 0x1862 > HT20/HT40 > Static SM Power Save > RX HT20 SGI > RX HT40 SGI > No RX STBC > Max AMSDU length: 7935 bytes > DSSS/CCK HT40 > Maximum RX AMPDU length 65535 bytes (exponent: 0x003) > Minimum RX AMPDU time spacing: 16 usec (0x07) > HT TX/RX MCS rate indexes supported: 0-15, 32 > Frequencies: > * 2412 MHz [1] (20.0 dBm) > * 2417 MHz [2] (20.0 dBm) > * 2422 MHz [3] (20.0 dBm) > * 2427 MHz [4] (20.0 dBm) > * 2432 MHz [5] (20.0 dBm) > * 2437 MHz [6] (20.0 dBm) > * 2442 MHz [7] (20.0 dBm) > * 2447 MHz [8] (20.0 dBm) > * 2452 MHz [9] (20.0 dBm) > * 2457 MHz [10] (20.0 dBm) > * 2462 MHz [11] (20.0 dBm) > * 2467 MHz [12] (20.0 dBm) > * 2472 MHz [13] (20.0 dBm) > * 2484 MHz [14] (disabled) > Bitrates (non-HT): > * 1.0 Mbps > * 2.0 Mbps > * 5.5 Mbps > * 11.0 Mbps > * 6.0 Mbps > * 9.0 Mbps > * 12.0 Mbps > * 18.0 Mbps > * 24.0 Mbps > * 36.0 Mbps > * 48.0 Mbps > * 54.0 Mbps > max # scan SSIDs: 4 > max scan IEs length: 2257 bytes > RTS threshold: 2347 > Coverage class: 0 (up to 0m) > Available Antennas: TX 0 RX 0 > Supported interface modes: > * IBSS > * managed > * AP > * AP/VLAN > * monitor > Supported commands: > * new_interface > * set_interface > * new_key > * new_beacon > * new_station > * set_bss > * authenticate > * associate > * deauthenticate > * disassociate > * join_ibss > * remain_on_channel > * set_tx_bitrate_mask > * action > * frame_wait_cancel > * set_wiphy_netns > * set_channel > * set_wds_peer > * connect > * disconnect > Supported TX frame types: > * IBSS: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 > 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0 > * managed: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 > 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0 > * AP: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 0x0090 > 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0 > * AP/VLAN: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 > 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0 > * mesh point: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 > 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0 > * P2P-client: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 > 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0 > * P2P-GO: 0x0000 0x0010 0x0020 0x0030 0x0040 0x0050 0x0060 0x0070 0x0080 > 0x0090 0x00a0 0x00b0 0x00c0 0x00d0 0x00e0 0x00f0 > Supported RX frame types: > * IBSS: 0x00d0 > * managed: 0x0040 0x00d0 > * AP: 0x0000 0x0020 0x0040 0x00a0 0x00b0 0x00c0 0x00d0 > * AP/VLAN: 0x0000 0x0020 0x0040 0x00a0 0x00b0 0x00c0 0x00d0 > * mesh point: 0x00b0 0x00c0 0x00d0 > * P2P-client: 0x0040 0x00d0 > * P2P-GO: 0x0000 0x0020 0x0040 0x00a0 0x00b0 0x00c0 0x00d0 > > I was told that all of this is perfectly normal, and that it would be expected > that I do in fact get a connection over 11n. Finally, here is the output of iw > dev wlan0 link for good measure (as I'm connected to the AP in question): > > Connected to 00:1e:c1:a2:01:5a (on wlan0) > SSID: Perforator > freq: 2442 > RX: 6135006 bytes (37340 packets) > TX: 564340 bytes (3644 packets) > signal: -37 dBm > tx bitrate: 54.0 MBit/s > > In conclusion: I hope I haven't been wasting your time, and that you may know > why it is that I cannot get a decent connection to my AP. Furthermore, it would > awesome if you had some sort of solution to my problem, and if you do, I'd be > delighted to hear it! If you do not yet know what the problem may be, and you > require more information (whatever that may be), just ask and I'll make sure you > get the relevant information. I do mind you contacting me directly, but only because you did not Cc the linux-wireless ML. I only do private trouble-shooting when I have a contract. For that reason, I have added that ML in the reply, and quoted your complete message. I am running a vanilla kernel from the wireless-testing git tree. It reports as 3.1-rc4. You did not say what kernel you are using, but you would get the same wireless code from any kernel and the latest version of compat-wireless. The second piece of info that you missed is which RTL8192SE you have - I have 3 varieties. I am reporting the results for the RTL8191SEvA [10ec:8171]. My tests use netperf to measure the TX speed against a server in my network, which has a wired connection to my AP. The AP (Netgear WND3300) is configured with the "Up to 270 Mbps at 2.4 GHz" setting, i.e. 802.11n-only. For RX tests, that server is used as the source and the test box is the server. The results are as follows: TCP_MAERTS TX Test: 47.33 53.94 55.19 44.24 57.74 55.44 53.74 54.63 47.87 57.82 TCP_MAERTS RX Test: 66.02 69.79 67.70 52.15 82.56 80.30 79.43 80.98 76.26 71.34 Results: TX: max 57.82, min 44.24. Mean 52.79(4.42) RX: max 82.56, min 52.15. Mean 72.65(8.85) TCP_STREAM TX Test: 71.83 80.44 72.88 26.11 40.85 58.70 58.49 58.96 59.52 59.35 TCP_STREAM RX Test: 46.41 52.64 43.85 48.44 52.15 49.66 52.81 50.61 43.18 52.93 Results: TX: max 80.44, min 26.11. Mean 58.71(14.93) RX: max 52.93, min 43.18. Mean 49.27(3.51) TCP_SENDFILE TX Test: 57.86 55.94 55.21 56.13 56.70 61.71 56.85 54.68 55.04 51.30 TCP_SENDFILE RX Test: 37.82 47.51 41.61 42.88 45.37 35.11 45.09 40.11 46.48 22.86 Results: TX: max 61.71, min 51.30. Mean 56.14(2.50) RX: max 47.51, min 22.86. Mean 40.48(6.96) The numbers in () are the standard deviations, which are larger than they should be. You can clearly see that the rates exceed those of an 802.11g link, which would max out at ~27 Mbps. This is confirmed by the iwconfig listing. finger@larrylap:~> iwconfig wlan0 wlan0 IEEE 802.11bgn ESSID:"lwfdjf-n" Mode:Managed Frequency:2.422 GHz Access Point: C0:3F:0E:BE:2B:44 Bit Rate=135 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-35 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 In short, I do not duplicate your results. Larry ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2011-09-19 20:05 UTC | newest]
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[not found] ` <4E67CEA3.7020709@gmail.com>
2011-09-08 1:52 ` RTL8192SE and 802.11n problem Larry Finger
2011-09-08 2:23 ` Larry Finger
2011-09-08 2:50 ` Larry Finger
2011-09-08 3:23 ` Stefan Zwanenburg
2011-09-08 3:42 ` Larry Finger
[not found] ` <8117B559D4E64A83837479A8C342A5CA@realsil.com.cn>
[not found] ` <4E6E537D.5060404@gmail.com>
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[not found] ` <1903155944F64F00AC0C401593C20923@realsil.com.cn>
2011-09-19 20:04 ` 答复: 答复: 答复: " Stefan Zwanenburg
[not found] <4E6772B6.603@gmail.com>
2011-09-07 14:30 ` Larry Finger
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