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Re: lvs NAT state tables

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: lvs NAT state tables
From: Wensong Zhang <wensong@xxxxxxxxxxxx>
Date: Fri, 18 Apr 2003 18:00:31 +0800 (CST)

On Wed, 16 Apr 2003, Fong Vang wrote:

> I'm having a difficult time figuring out why packets are being dropped at
> the load balancer for sessions that have no packets going through it.
> Basically, the client (browsers) requests a such that could take up to 30
> minutes to return.  If it returns in less than 15 minutes, everything is
> okay.  Anything longer and the return packets (according to traffic
> sniffing) would be dropped at the load balancer.
> 
> We're using ipvsadm v1.21 with IPVS v1.0.6.  We're using IPVS in NAT mode.
> 
> After issueing a request from the browser, ipvsadm -Lnc set the expire time
> to 15 minutes and then starts the count down.  Could this be what's causing
> the problem?  If so, how do I change this?
> 

You can probably use "ipvsadm --set tcp tcpfin udp" to set the different
timeout values, see ipvsadm man page for the descriptions.

Regards,

Wensong

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