From: Norbert van Nobelen <norbert-kernel@hipersonik.com>
To: "Miro Dietiker, MD Systems" <info@md-systems.ch>,
       linux-kernel@vger.kernel.org
Subject: Re: Networking delay & timeout
Date: Thu, 1 Dec 2005 13:26:24 +0100
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I have a few questions:
- Did you do any relevant upgrades at all at any of the involved machines?
- Did you do a ping from a second machine from the same location, or better 
another machine from another location
- traceroute for problems in between?


On Thursday 01 December 2005 12:27, you wrote:
> Hi!
>
> I'm having some trouble with "general networking", using simple Ethernet
> Gigabit interfaces on a routing computer (routing in between eth0,
> eth1).
>
> My network has 10 Servers and a public internet gateway. Router does arp
> proxying.
> If I "ping" from a Internet-computer (unrecently used before to connect
> to that server), my firewall produces Initial delays around 1000ms!
>
> C:\>ping abcde
> Ping frankonia [X.X.X.X] mit 32 Bytes Daten:
> Antwort von X.X.X.X: Bytes=32 Zeit=441ms TTL=53
> Antwort von X.X.X.X: Bytes=32 Zeit=33ms TTL=53
> Antwort von X.X.X.X: Bytes=32 Zeit=32ms TTL=53
> Antwort von X.X.X.X: Bytes=32 Zeit=32ms TTL=53
>
> If i ping later on, delay remains that low.
>
> In some certain cases, the target even is temporarily unreachable...
>
> Is there anyone who can tell me how to debug the source of this delay?
> Is it possible to reduce it?
> The initial delay seems to be sourced by the linux router, while the
> temporary unavailability seems to be sourced by the target server,
> temporarily not answering to packets!
>
> Do you have any suggestion for analternative list to post this question?
>
> +-------------------------------+  +-------------------------------+
>
> | Miro Dietiker                 |  | MD Systems Miro Dietiker      |
>
> +-------------------------------+  +-------------------------------+
>
>
> -
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