openwrt / openwrt/mt76

Doing the following on will cause some clients to have longer latency or skipped seq during ping

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#780 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C
Stars
888
Forks
436
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No merged PRs in 30d

Description

On a mt7615 we have ODBC enabled using phy1 as the 2.4 radio we have an AP setup on wlan1. We setup another interface on the same phy and do a site survey scan and after clients connected to the AP are slower to respond with ping. Latency increases and we see skipped seq.

iw phy1 interface add wlan99 type station
iwinfo wlan99 scan
iw wlan99 del

Any thoughts on why this happens?
We have a reason for setting up a second iface and we have done this successfully on a MT7620/7612 setup. Our setup is with a MT7621/7615

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Research direction

Reproduce the issue on the described mt7615 setup using the iw and iwinfo commands for phy1, wlan1, and wlan99. Measure ping latency and skipped sequences before and during the site survey, then compare the behavior with the reported MT7620/7612 setup. Done means identifying and correcting the cause of client degradation during the scan, with the reproduction no longer showing increased latency or skipped sequences.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
embedded-iot, networking, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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