https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233949
Bug ID: 233949
Summary: [if_rtwn] rwtn packet loss 10-25%
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: wireless
Assignee: wirel...@freebsd.org
Reporter: mr_beaner_2...@yahoo.com
RE: 218527, is not fixed. I am testing with an EDIMAX N150 Nano USB Adapter.
# freebsd-version
13.0-CURRENT
# usbconfig -d ugen1.2 dump_all_desc
ugen1.2: <Realtek 802.11n WLAN Adapter> at usbus1, cfg=0 md=HOST spd=HIGH
(480Mbps) pwr=ON (500mA)
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0200
bDeviceClass = 0x0000 <Probed by interface class>
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0000
bMaxPacketSize0 = 0x0040
idVendor = 0x7392
idProduct = 0x7811
bcdDevice = 0x0200
iManufacturer = 0x0001 <Realtek>
iProduct = 0x0002 <802.11n WLAN Adapter>
iSerialNumber = 0x0003 <00e04c000001>
bNumConfigurations = 0x0001
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x002e
bNumInterfaces = 0x0001
bConfigurationValue = 0x0001
iConfiguration = 0x0000 <no string>
bmAttributes = 0x00a0
bMaxPower = 0x00fa
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0004
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x00ff
bInterfaceProtocol = 0x00ff
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0002 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 2
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0003 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0200
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 3
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0084 <IN>
bmAttributes = 0x0003 <INTERRUPT>
wMaxPacketSize = 0x0040
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
# ifconfig wlan0
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 74:da:38:d5:f5:4b
inet 172.30.8.76 netmask 0xffffffc0 broadcast 172.30.8.127
groups: wlan
ssid WAPNAME channel 11 (2462 MHz 11g ht/20) bssid 80:2a:a8:d7:ec:a5
regdomain FCC country US authmode WPA2/802.11i privacy ON
deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
protmode CTS ht20 ampdulimit 64k ampdudensity 8 shortgi -stbc -ldpc
wme roaming MANUAL
media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
status: associated
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
# ping -c 100 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
64 bytes from 172.30.8.65: icmp_seq=0 ttl=255 time=16.389 ms
...
64 bytes from 172.30.8.65: icmp_seq=59 ttl=255 time=1316.844 ms
64 bytes from 172.30.8.65: icmp_seq=61 ttl=255 time=121.498 ms
64 bytes from 172.30.8.65: icmp_seq=62 ttl=255 time=44.221 ms
64 bytes from 172.30.8.65: icmp_seq=63 ttl=255 time=59.534 ms
64 bytes from 172.30.8.65: icmp_seq=64 ttl=255 time=66.640 ms
64 bytes from 172.30.8.65: icmp_seq=65 ttl=255 time=39.747 ms
64 bytes from 172.30.8.65: icmp_seq=66 ttl=255 time=57.837 ms
64 bytes from 172.30.8.65: icmp_seq=67 ttl=255 time=104.932 ms
...
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 75 packets received, 25.0% packet loss
round-trip min/avg/max/stddev = 12.461/58.785/1316.844/147.781 ms
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