airport woes?

airport woes?

[Chris Leishman]

Hi all,

Something appears to be odd with the airport under PPC.

Unfortunatly I've been stuck behind a fairly awful link recently, and have
had to open interactive connections to remote hosts.  The quality of the link
is terrible with average ping times of up to 1sec, and packet loss between 12
and 25 percent.

I've been using ssh to connect to remote hosts, and needless to say the
response time is shocking.

However, I've also had problems where the session totally locks up - I type at
the terminal as much as I like, but nothing reaches the other end.  At first I
put this down to the crappy network link.  However I've also noticed more
recently that only _half_ the connection craps out - I can still receive data
from the remote server.  Weird.

Then today I switched to use ethernet instead of the airport (I was
transfering some large files and wanted to use 100Mb), and I noticed that I
wasn't getting the lockup problems with the remote hosts.

I'm using benh's latest kernel and airport driver.  Now I can't think what
would be causing this, but I thought you'd like to know.  Anyone else seen
this problem?


Regards,

Chris


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Re: airport woes?

[Rob]

>I'm using benh's latest kernel and airport driver.  Now I can't think what
>would be causing this, but I thought you'd like to know.  Anyone else seen
>this problem?

I have the above (with the patched pcmcia package), bronze lombard 400mhz, and
everything works for me.  It honestly sounds like a lack of signal problem.
There are a couple of graphical signal strength monitors, or you could do what
I did, and write a stupid shell script (ask me if you want it) to dredge the
signal strength out of /proc.

Hope this helps,

- Rob
.


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Re: airport woes?

[Chris Leishman]

On Tue, Oct 24, 2000 at 11:33:46AM -0400, Rob wrote:
>
> >I'm using benh's latest kernel and airport driver.  Now I can't think what
> >would be causing this, but I thought you'd like to know.  Anyone else seen
> >this problem?
>
> I have the above (with the patched pcmcia package), bronze lombard 400mhz, and
> everything works for me.  It honestly sounds like a lack of signal problem.
> There are a couple of graphical signal strength monitors, or you could do what
> I did, and write a stupid shell script (ask me if you want it) to dredge the
> signal strength out of /proc.
>


I don't think its signal strength, since I'm almost sitting on top of the base
station 90% of the time - and it doesn't seem to affect data coming back to
me.

Also, I've got a pismo - with the built in "apple branded" airport card, and
I'm using BenH's airport driver (not the pcmcia one).  Ben mailed me earlier
to say he is working on something...

Thanks,

Chris

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Re: airport woes?

[Rod Stewart]

On Wed, 25 Oct 2000, Chris Leishman wrote:

> I don't think its signal strength, since I'm almost sitting on top of
> the base station 90% of the time - and it doesn't seem to affect data
> coming back to me.
>
> Also, I've got a pismo - with the built in "apple branded" airport
> card, and I'm using BenH's airport driver (not the pcmcia one).  Ben
> mailed me earlier to say he is working on something...

Anyone know if this is fixed, or a work around?  I've got the same setup,
with the same problem.  My ssh connections over airport freeze.

Thanks,
-Rms


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Re: airport woes?

[Topi Kanerva]

On Tue, 24 Oct 2000, Chris Leishman wrote:

>I've been using ssh to connect to remote hosts, and needless to say the
>response time is shocking.
>
>However, I've also had problems where the session totally locks up - I type at
>the terminal as much as I like, but nothing reaches the other end.  At first I
>put this down to the crappy network link.  However I've also noticed more
>recently that only _half_ the connection craps out - I can still receive data
>from the remote server.  Weird.
>
>Then today I switched to use ethernet instead of the airport (I was
>transfering some large files and wanted to use 100Mb), and I noticed that I
>wasn't getting the lockup problems with the remote hosts.
>
>I'm using benh's latest kernel and airport driver.  Now I can't think what
>would be causing this, but I thought you'd like to know.  Anyone else seen
>this problem?

Me. I went nuts one day when my ssh connections got constantly stuck and
the only thing I could do was to killall ssh and restart the
connection... I blamed about every part of the network, and finally
realized that I wasn't getting this symptom as long as I was using the GMAC
interface instead of airport... I'm using kernel 2.2.17pre20-ben3 and
aswell Ben's newest airport driver... And yes, if you e.g. run irc on one
session, you can easily see that even though you cannot transmit any
characters on the remote host, it seems that the other people are writing
to you nonetheless. So, it's a pretty weird and unexplainable problem. Ben?


-topi


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