Re: Deactivate TCP Hostcache?

From: Andre Oppermann (andre_at_freebsd.org)
Date: 08/20/05

  • Next message: Andre Oppermann: "Re: Deactivate TCP Hostcache? (2)" 
    Date: Sat, 20 Aug 2005 19:29:57 +0200
To: Christian Vogt <chvogt@tm.uka.de>

    Christian Vogt wrote:
    >
    > Hi everybody,
    >
    > is there a way to deactivate the TCP hostcache?
    >
    > I could modify the kernel, but probably there is a more convenient way
    > to do this.

    No, there is no other way.

    > The reason I want to deactivate the hostcache is because I am doing
    > experiments and later measurements should not be different than earlier
    > ones due to cached information.

    Comment out the tcp_hc_update() call on line 737 in netinet/tcp_subr.c
    and it won't cache metrics anymore. The discovered path MTU is still
    stored though. 

    -- 
Andre
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  • Next message: Andre Oppermann: "Re: Deactivate TCP Hostcache? (2)"

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