RTS (Request-To-Send) not detected
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- Dominant language
- C
- Stars
- 888
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Description
Hi,
we have some devices using mt7610u in IBSS (channel 36, 80MHz bandwidth). I noticed that I cannot detect RTS frames but only CTS and I wonder if this is normal.
iw phy phy0 set rts 0 # on all devices
iw phy phy0 info | grep RTS # verify that it is applied
# on phy0 we have wlan0 (IBSS) + mon0 (monitor interface)
tcpdump -i mon0 type ctl subtype rts # nothing is dumped
tcpdump -i mon0 type ctl subtype cts
# many cts packers are dumped, in quantity proportional to the transmitting rate
Moreover, setting different RTS thresholds does not seem to impact performances (in terms of bitrate).
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Research direction
Start by reproducing the mt7610u IBSS setup on channel 36 with 80MHz bandwidth, including the shown iw and tcpdump commands on wlan0 and mon0. Trace RTS and CTS handling from the reported behavior and determine whether missing RTS frames and unchanged bitrate are expected; done means the behavior is explained or a specific driver correction is identified.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- networking
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100