On 09.08.19 15:31, Koen Vandeputte wrote:
On 09.08.19 14:48, Ben Greear wrote:
On 8/6/19 2:26 AM, Koen Vandeputte wrote:
Hi Ben,
I finally managed to get to some time to properly take a look
using a simple setup.
Attached all required files to simulate the issue.
I compiled the latest OpenWrt master state, (included a full
wpa_supplicant and iperf tools) and ran the 2 starts.
Attached also logs as seen from both boards simultaneously.
basically:
- If the boards finally do link after lots of tries, it will have
a >200ms latency and max speed of about 3Mbit.
- The wpa_sup config file is the most basic RSN enabled config.
- I also tried the current Master state with/without all custom
pathes, but the result is the same.
- wpa_supp also nags about some missing IE's
Hw used:
- 2x RB-922UAGS containing a on-board ar988x, capable of 30dBm.
- 2x standard 5GHz omni antennae
- board seperation distance ca 6ft
Can you reproduce without encryption enabled? That makes it easier
to debug
packet sniffs.
If you just run ping traffic (or very slow speed tcp/udp), do you
still see the issues (like high
latency, packet loss, poor on-air encoding rates, etc)?
currently rebuilding the setup. will get back on this asap.
If I build you a debugging firmware, are you able and willing to
reproduce the problem and
send me dmesg output as well as on-air packet sniff?
Very sure!
Preferably, with generated traffic with unique packet sizes (ie, ever
increasing, random, or something like
that, so I can more easily match up on-air frames with the debugging
output.
I believe that the beacon issues are probably a symptom of some other
failure in the transmit and/or
receive path.
Thanks,
Ben
Lets get this fixed! :-)
Koen
Just tested with encryption disabled:
summary:
- speed is looking good. (~130Mbit/s) also link speed is 866Mbit (2x2 radio)
- iw wlan0 confirms 80MHz channel
- Only a single splat seen, no beacon errors
- non-htt firmware
dmesg: https://pastebin.com/YLbJCDJc
configs:
network={
ssid="ibsskoen"
key_mgmt=NONE
mode=1
frequency=5745
}
iwinfo:
wlan0 ESSID: "ibsskoen"
Access Point: B8:69:F4:CF:C6:05
Mode: Ad-Hoc Channel: 149 (5.745 GHz)
Tx-Power: 30 dBm Link Quality: 70/70
Signal: -5 dBm Noise: -102 dBm
Bit Rate: 866.7 MBit/s
Encryption: unknown
Type: nl80211 HW Mode(s): 802.11nac
Hardware: 168C:003C 19B6:D042 [Generic MAC80211]
TX power offset: unknown
Frequency offset: unknown
Supports VAPs: yes PHY name: phy0
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