URL that times out for some users and not others ...

Ashley Aitken mrhatken at mac.com
Wed Feb 7 16:58:35 PST 2007


Hi Alex (et al.),

On 08/02/2007, at 7:09 AM, Alex Satrapa wrote:

> On 08/02/2007, at 00:52 , Jared Earle wrote:
>
>> Sounds possibly like MTU ...
>
> That's my first guess too.
>
> Ashley should read up on "path MTU discovery" and the problems that  
> are associated with it.

Do you mean me (Ashley) or Michael (or both of us)?

> A heavy-handed approach would involve contacting one of the  
> afflicted clients, and modifying the MTU of your server's (or the  
> client's) Ethernet interface to something like 1400. If the problem  
> disappears, you have (most likely) discovered a path MTU discovery  
> problem.

Whilst I am here I might as well ask.  I have a basic understanding  
of MTU but generally speaking, is one required to set the MTU to the  
minimum of all the hops within the packets path, so that larger  
packets don't get fragmented?  When such packets reach networks that  
have a large MTU are they combined or are the packets sent through  
only partially full.  When packets are coming the other way, I guess  
they are split up automatically and there is nothing that can be done  
about that.

Cheers,
Ashley.



--
Ashley Aitken
Perth, Western Australia
mrhatken at mac dot com
Skype Name: MrHatken (GMT + 8 Hours!)





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