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lvs NAT state tables

To: "'lvs-users@xxxxxxxxxxxxxxxxxxxxxx'" <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: lvs NAT state tables
From: Fong Vang <FVang@xxxxxxxxxx>
Date: Wed, 16 Apr 2003 13:01:32 -0700
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?

Any help would be appreciated.

-- Fong Vang
   Unix Systems Engineer



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