FW: RFC1323 Window scale behavior

From: Mike Jagdis ([email protected])
Date: Thu Jan 18 2001 - 06:18:33 EST

  • Next message: Megabert: "Re: RFC1323 Window scale behavior"

    > 1) I would like to know if there is any tool to determine the TCP
    > window size in Linux Redhat 6.2. (kernel 2.2.16)?
    > Or can I know the default window size? Also, is there any tool
    > that can be used to control the window size??

    You can get/set the default and maximum (that an application can
    set via setsockopt() syscalls) through the proc files:
    /proc/sys/net/core/[rw]mem_{default,max}.

      You can turn window scaling on and off through, um...,
    /proc/sys/net/ipv4/tcp_window_scaling.

      If you want to know what is happening on the wire you need to
    watch packets - good old tcpdump (or iptraf for those who need
    something more graphical).

                                    Mike



    This archive was generated by hypermail 2b29 : Thu Jan 18 2001 - 06:57:15 EST