[LARTC] Clamping tcp mss values to decrease latency

Linux Advanced Routing and Traffic Control

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On Mon, Feb 25, 2002 at 02:23:48PM +0100, Martin Devera wrote:

> At my production server when I set MTU to 640 (I hoped in better link
> utilization) I suddenly was not able to reach some webs from it. I
> discovered that the are sending me 1500 byte packets with DF set and
> they didn't pay atttention to my MTU. It is obvious problem in MTU
> discovery.
> 
> You are roght that MSS is set to MTU but it is bad luck it you have
> small MSS but you can't reach some hosts.
> 
> MSS setting for routes works well for me even for localy generated
> flows. Is there some problem I don't see ?

No ;-)

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