https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233949
--- Comment #3 from mr_beaner_2...@yahoo.com ---
I have two SSIDs from one WAP,
# ifconfig wlan0 list scan
SSID/MESH ID BSSID CHAN RATE S:N INT
CAPS
WAPGUEST 82:2a:a8:d7:ec:a5 11 54M -81:-95 100 EPS
BSSLOAD HTCAP WME ATH RSN
WAPNAME 80:2a:a8:d7:ec:a5 11 54M -83:-95 100 EPS
BSSLOAD HTCAP WME ATH RSN
# ping -c 100 -q 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 98 packets received, 2.0% packet loss
round-trip min/avg/max/stddev = 8.787/20.475/77.679/12.369 ms
#
# ifconfig wlan0 -shortgi
# ping -c 100 -q 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 99 packets received, 1.0% packet loss
round-trip min/avg/max/stddev = 9.907/31.190/1020.956/101.438 ms
# 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 -stbc -ldpc wme
roaming MANUAL
media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
status: associated
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
# ifconfig wlan0 -ampdutx
# ping -c 100 -q 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 100 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 10.537/21.692/70.821/10.093 ms
# ifconfig wlan0 ampdutx
# ifconfig wlan0 amsdutx
# ping -c 100 -q 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 99 packets received, 1.0% packet loss
round-trip min/avg/max/stddev = 11.616/31.129/1034.261/101.653 ms
# ping -c 100 -q 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
f
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 99 packets received, 1.0% packet loss
round-trip min/avg/max/stddev = 11.069/29.829/1092.987/107.861 ms
# ifconfig wlan0 -amsdutx
# ping -c 100 -q 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 99 packets received, 1.0% packet loss
round-trip min/avg/max/stddev = 10.609/28.940/1082.781/106.818 ms
# ifconfig wlan0 amsdutx
# ifconfig wlan0 ampdutx
# 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 -stbc -ldpc wme
roaming MANUAL
media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
status: associated
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
# ifconfig wlan0 channel 11:g
# 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 -stbc -ldpc wme
roaming MANUAL
media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
status: associated
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
# ping -c 100 -q 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
--- 172.30.8.65 ping statistics ---
100 packets transmitted, 84 packets received, 16.0% packet loss
round-trip min/avg/max/stddev = 10.599/175.849/2100.622/391.322 ms
#
Using the -ht flag doesn't improve performance, and I can replicate this issue
across three different, identical NICs.
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