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Re: [opensuse] Howto Configure MTU and RWIN in OpenSuse 10.3
  • From: James Knott <james.knott@xxxxxxxxxx>
  • Date: Mon, 02 Jun 2008 07:26:02 -0400
  • Message-id: <4843D8CA.7030309@xxxxxxxxxx>
Carlos E. R. wrote:

The Monday 2008-06-02 at 12:03 +0200, Philippe Landau wrote:

> Hello

> My ISP told me to optimise my network connection
> using TCP Optimizer (Windows only).
> How can i check what values are being used
> and how can i set new values for MTU and RWIN ?

"ifconfig" or "ifstatus eth0", at lest it shows the MTU. RWIN I dunno what it is.

RWIN is the receive window, which specifies how much outstanding unacknowledged data is permitted. It's normally determined dynamically, by the receiver. MTU is max 1500 on ethernet, but can be much larger on other network types, such as token ring. Again, these days, it's usually automatically set, through path MTU discovery. One thing to bear in mind is that many Windows settings are required because of limitations in Windows and are not a consideration elsewhere.

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