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Re: Problems with some web sites (tuning?)



>
>
>
>---- Original Message ----
>From: carlj@peak.org
>To: debian-user@lists.debian.org
>Subject: Re: Problems with some web sites (tuning?)
>Date: Fri, 27 Mar 2009 20:49:21 -0700
>
>>Carl Johnson <carlj@peak.org> writes:
>>
>>> Jochen Schulz <ml@well-adjusted.de> writes:
>>>
>>>> Carl Johnson:
>>>>>
>>>>> I have been having access problems with some web sites for quite
>a
>>>>> while now, with wikipedia being one of the worst.  I can access
>the
>>>>> web site, but articles often freeze, especially large ones.  It
>will
>>>>> sometimes work for small articles, but large articles will
>almost
>>>>> never completely load, so it is largely useless.  Is there some
>>>>> network tuning that can be done to improve the situation?
>>>>
>>>> What's the MTU of your ppp0 device (or on your router, if you are
>using
>>>> one)?
>>>
>>> My config file for ppp sets it to 552.
>>
>>Jochen replied off-list and suggested I set the MTU to something
>like
>>1400.  I tried that, as well as the default of 1500, and neither
>>seemed to make any difference.  In all cases long wikipedia articles
>>usually either arrive truncated or timeout before completion.  Also,
>>in reply to another question from him, the link had actually been
>>using an MTU of 552 previously.
>>
>>Thanks for any suggestions so far, but I still don't have a
>solution.
>>-- 
>>Carl Johnson		carlj@peak.org
>>
>>
I don't know what could be causing this but the behavior might
suggest that the packets are undergoing a very high error rate.  The
timeout or "lockup" can indicate that the packets cannot be
reassembled at the destination (your computer) and the TCP protocol
times out waiting for one or more missing packets.
Larry
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