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Date:      Thu, 18 Apr 2002 08:35:50 -0700
From:      Michael Sierchio <kudzu@tenebras.com>
To:        Mike Gratton <mike@vee.net>
Cc:        freebsd-stable <freebsd-stable@FreeBSD.ORG>
Subject:   Re: NFS timing out over wi0 interface using UDP?
Message-ID:  <3CBEE7D6.3040708@tenebras.com>
References:  <3CB7970D.6030706@vee.net> <20020414.000214.95842732.imp@village.org> <3CB9B0D2.6050609@tenebras.com> <3CBEC56F.2020908@vee.net>

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Mike Gratton wrote:

> bash-2.05a$ wicontrol -C
> [1/3]: 00:02:b3:9e:2c:0b, 203.18.245.252, sig: -64, noise: -94, qual: 30
> [2/3]: 00:40:95:aa:a8:8d, 203.18.245.253, sig: -63, noise: -91, qual: 28
> [3/3]: 00:60:1d:f2:f5:eb, 203.18.245.2, sig: -64, noise: -93, qual: 29
> 
> The second host listed is the nfs client (note that that host isn't 
> using a wireless card, it's using fixed ethernet).
> 
> Not really being familiar with the tech details of 802.11, is this an 
> okay S/N ratio?

Some stupid questions, since I missed parts of the earlier message --
are these NFS mounts using TCP?  Its Congestion control algorithms play
havoc with wireless, because it assumes that lost packets are due
to congestion and not the microwave.

It might be better than UDP though.  Experiment?


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