Network throughput is, to put it mildly, half-baked.
Higher values, are they even possible via rt2800usb.ko & Co.?
°°°°°°°°°°°°°°°
$ iperf -s -i 1
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.5 port 5001 connected with 192.168.2.52 port 57150
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 1.0 sec 1.56 MBytes 13.1 Mbits/sec
[ 4] 1.0- 2.0 sec 1.82 MBytes 15.3 Mbits/sec
[ 4] 2.0- 3.0 sec 1.74 MBytes 14.6 Mbits/sec
[ 4] 3.0- 4.0 sec 1.86 MBytes 15.6 Mbits/sec
[ 4] 4.0- 5.0 sec 1.94 MBytes 16.3 Mbits/sec
[ 4] 5.0- 6.0 sec 1.92 MBytes 16.1 Mbits/sec
[ 4] 6.0- 7.0 sec 1.85 MBytes 15.5 Mbits/sec
[ 4] 7.0- 8.0 sec 1.82 MBytes 15.2 Mbits/sec
[ 4] 8.0- 9.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 4] 9.0-10.0 sec 1.82 MBytes 15.2 Mbits/sec
[ 4] 0.0-10.4 sec 18.9 MBytes 15.2 Mbits/sec
°°°°°°°°°°°°°°°°°°°°°°°°°°°
$ iperf -c 192.168.2.5 -i 1
------------------------------------------------------------
Client connecting to 192.168.2.5, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.52 port 57150 connected with 192.168.2.5 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 1.0- 2.0 sec 2.00 MBytes 16.8 Mbits/sec
[ 3] 2.0- 3.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 3.0- 4.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 4.0- 5.0 sec 2.00 MBytes 16.8 Mbits/sec
[ 3] 5.0- 6.0 sec 1.88 MBytes 15.7 Mbits/sec
[ 3] 6.0- 7.0 sec 1.75 MBytes 14.7 Mbits/sec
[ 3] 7.0- 8.0 sec 2.25 MBytes 18.9 Mbits/sec
[ 3] 8.0- 9.0 sec 1.38 MBytes 11.5 Mbits/sec
[ 3] 9.0-10.0 sec 2.12 MBytes 17.8 Mbits/sec
[ 3] 0.0-10.1 sec 18.9 MBytes 15.6 Mbits/sec
°°°°°°°°°°°°°°°
$ iperf -s -i 1
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.2.52 port 5001 connected with 192.168.2.5 port 49178
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 1.0 sec 3.24 MBytes 27.2 Mbits/sec
[ 4] 1.0- 2.0 sec 3.58 MBytes 30.0 Mbits/sec
[ 4] 2.0- 3.0 sec 4.11 MBytes 34.5 Mbits/sec
[ 4] 3.0- 4.0 sec 4.44 MBytes 37.2 Mbits/sec
[ 4] 4.0- 5.0 sec 4.71 MBytes 39.5 Mbits/sec
[ 4] 5.0- 6.0 sec 4.64 MBytes 39.0 Mbits/sec
[ 4] 6.0- 7.0 sec 4.49 MBytes 37.7 Mbits/sec
[ 4] 7.0- 8.0 sec 4.61 MBytes 38.6 Mbits/sec
[ 4] 8.0- 9.0 sec 4.43 MBytes 37.2 Mbits/sec
[ 4] 9.0-10.0 sec 4.66 MBytes 39.1 Mbits/sec
[ 4] 0.0-10.1 sec 43.5 MBytes 36.0 Mbits/sec
°°°°°°°°°°°°°°°°°°°°°°°°°°°°
$ iperf -c 192.168.2.52 -i 1
------------------------------------------------------------
Client connecting to 192.168.2.52, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.2.5 port 49178 connected with 192.168.2.52 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 3.62 MBytes 30.4 Mbits/sec
[ 3] 1.0- 2.0 sec 3.62 MBytes 30.4 Mbits/sec
[ 3] 2.0- 3.0 sec 4.12 MBytes 34.6 Mbits/sec
[ 3] 3.0- 4.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 4.0- 5.0 sec 4.88 MBytes 40.9 Mbits/sec
[ 3] 5.0- 6.0 sec 4.75 MBytes 39.8 Mbits/sec
[ 3] 6.0- 7.0 sec 4.38 MBytes 36.7 Mbits/sec
[ 3] 7.0- 8.0 sec 4.88 MBytes 40.9 Mbits/sec
[ 3] 8.0- 9.0 sec 4.25 MBytes 35.7 Mbits/sec
[ 3] 9.0-10.0 sec 4.50 MBytes 37.7 Mbits/sec
[ 3] 0.0-10.0 sec 43.5 MBytes 36.5 Mbits/sec
°°°°°°°°°°°°°°°°°°°°°°°°
# lsusb -d 148f:3070 -v
Bus 002 Device 003: ID 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x148f Ralink Technology, Corp.
idProduct 0x3070 RT2870/RT3070 Wireless Adapter
bcdDevice 1.01
iManufacturer 1 Ralink
iProduct 2 802.11 n WLAN
iSerial 3 1.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 67
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 450mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 7
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 5 1.0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
°°°°°°°°°°°°°°°°°°°°°°
$ modinfo rt2800usb -n
/lib/modules/3.17.2-200.fc20.x86_64/kernel/drivers/net/wireless/rt2x00/rt2800usb.ko.xz
°°°°°°°°°°°°°°°°°°°°°°°°°°°°
# dmesg -t | grep 'rt2\|2-3'
usb 2-3: new high-speed USB device number 3 using ehci-pci
usb 2-3: New USB device found, idVendor=148f, idProduct=3070
usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-3: Product: 802.11 n WLAN
usb 2-3: Manufacturer: Ralink
usb 2-3: SerialNumber: 1.0
usb 2-3: reset high-speed USB device number 3 using ehci-pci
ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 3070, rev 0201 detected
ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0005 detected
usbcore: registered new interface driver rt2800usb
rt2800usb 2-3:1.0 wlp0s4f1u3: renamed from wlan0
ieee80211 phy0: rt2x00lib_request_firmware: Info - Loading firmware file 'rt2870.bin'
ieee80211 phy0: rt2x00lib_request_firmware: Info - Firmware detected - version: 0.29
°°°°°°°°°°°°°°°°°°°°°
# iwconfig wlp0s4f1u3
wlp0s4f1u3 IEEE 802.11bgn ESSID:"AP1"
Mode:Managed Frequency:2.437 GHz Access Point: 00:01:02:03:04:05
Bit Rate=45 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=70/70 Signal level=-17 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:1414 Invalid misc:18505 Missed beacon:0
°°°°°°°°°°°°°°°°°°°°
# iw wlp0s4f1u3 info
Interface wlp0s4f1u3
ifindex 5
wdev 0x1
addr 00:02:04:08:04:02
type managed
wiphy 0
channel 6 (2437 MHz), width: 40 MHz, center1: 2427 MHz
°°°°°°°°°°°°°°°°°°°°
# iw wlp0s4f1u3 link
Connected to 00:01:02:03:04:05 (on wlp0s4f1u3)
SSID: AP1
freq: 2437
RX: 3943127090 bytes (5404885 packets)
TX: 235612402 bytes (2728395 packets)
signal: -17 dBm
tx bitrate: 45.0 MBit/s MCS 2 40MHz short GI
bss flags: short-slot-time
dtim period: 1
beacon int: 100
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
# iw wlp0s4f1u3 station dump
Station 00:01:02:03:04:05 (on wlp0s4f1u3)
inactive time: 0 ms
rx bytes: 3943288404
rx packets: 5404992
tx bytes: 235616874
tx packets: 2728447
tx retries: 567959
tx failed: 1414
signal: -17 dBm
signal avg: -17 dBm
tx bitrate: 45.0 MBit/s MCS 2 40MHz short GI
rx bitrate: 108.0 MBit/s MCS 5 40MHz
authorized: yes
authenticated: yes
preamble: long
WMM/WME: yes
MFP: no
TDLS peer: no
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
# iw wlp0s4f1u3 scan | grep associated -A50
BSS 00:01:02:03:04:05(on wlp0s4f1u3) -- associated
TSF: 132040964986 usec (1d, 12:40:40)
freq: 2437
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -13.00 dBm
last seen: 176 ms ago
Information elements from Probe Response frame:
SSID: AP1
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 6
ERP: <no flags>
Extended supported rates: 24.0 36.0 48.0 54.0
HT capabilities:
Capabilities: 0x186e
HT20/HT40
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 32767 bytes (exponent: 0x002)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 6
* secondary channel offset: below
* STA channel width: any
* RIFS: 0
* HT protection: no
* non-GF present: 0
* 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: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
# iw list / iw phy0 info
Wiphy phy0
max # scan SSIDs: 4
max scan IEs length: 2257 bytes
Coverage class: 0 (up to 0m)
Device supports RSN-IBSS.
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP (00-0f-ac:4)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* WDS
* monitor
* mesh point
Band 1:
Capabilities: 0x172
HT20/HT40
Static SM Power Save
RX Greenfield
RX HT20 SGI
RX HT40 SGI
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 2 usec (0x04)
HT RX MCS rate indexes supported: 0-7, 32
TX unequal modulation not supported
HT TX Max spatial streams: 1
HT TX MCS rate indexes supported may differ
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
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)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* new_mpath
* set_mesh_config
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* join_mesh
* set_tx_bitrate_mask
* frame
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* set_wds_peer
* probe_client
* set_noack_map
* register_beacons
* start_p2p_device
* set_mcast_rate
* Unknown command (104)
* connect
* disconnect
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-device: 0x40 0xd0
software interface modes (can always be added):
* AP/VLAN
* monitor
valid interface combinations:
* #{ AP, mesh point } <= 8,
total <= 8, #channels <= 1
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports low priority scan.
Device supports scan flush.
Device supports AP scan.
°°°°°°°°
poma
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