RE: [PATCH v2] mac80211: mesh - always do every discovery retry

[Jesse Jones <jjones@uniumwifi.com>]

> >> Well A-D is going to have a much smaller RTT than A-B-C-D. And, yes,
> >> using multiple hops is going to reduce throughput but I'd much rather
> >> use multiple
> >> 120 Mbps links than a link that only supports 12 Mbps.
> >>
> >
> > Airtime link metrics should choose the multiple links if it is good
> > compared to direct link.
> >
> >> That's why there are link and path metrics.
> >
> > I don't think that you don't get this. Every nodes sends out multiple
> > PREQs.
> > Other nodes received it with rebroadcast again. Take note on this.
> >
> >> Improving the link metric isn't going to help with PREQ reliability
> >> problems.
> >
> > PREQ realiabilit? It is broadcast management frame and usually using
> > lowest transmission rate. So it is realiabe.

They are only reliable when compared to individual rate controlled frames.
But, in general, they are most certainly not reliable. Even in a shielded
and conductive (i.e. with physical wires connecting antennas) environment
lost PREQ frames are not hard to see.

  -- Jesse