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Re: LVS-DR and HP-UX Realservers

To: Malcolm Cowe <malcolm_cowe@xxxxxxxxxxx>
Subject: Re: LVS-DR and HP-UX Realservers
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: "mack@xxxxxxxxxxxx" <mack@xxxxxxxxxxxxxxxxxxxx>
Date: Tue, 2 Apr 2002 11:51:04 -0500 (EST)
On Tue, 2 Apr 2002, Malcolm Cowe wrote:

> I deployed an LVS-NAT based login farm at my site a while back, and I
> have noticed horrible network congestion issues when people are using

> RDRAM and a 10/100BTx interface and the realservers are all HP B132s
> with 10BT NICs.
       ^^

here is the beginning and end of your problem.

> demonstrate this problem). Unfortunately, there does not appear to be an
> easy way to handle the ARP problem on the HP-UX 10.20 realservers. 

no it's trivial. It's only on Linux that the ARP problem is a disaster.  
The other unices are easy. You just configure the VIP on lo with -noarp.
Look in the configure script for how to do it (the configure script
autodetects the OS and will do the right thing for HP-UX - well it's 
supposed to, I don't have an HPUX machine to test it on, but it will be 
close enough that you can get it to work from there and send me the 
patches).

Joe

-- 
Joseph Mack, mack@xxxxxxxxxxxx
Linux Virtual Server project
http://www.linuxvirtualserver.org



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