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Re: LVS via Direct routing

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: LVS via Direct routing
From: "Graham David Purcocks M.A.(Oxon.)" <grahamp@xxxxxxxxxxxxx>
Date: Tue, 17 May 2005 11:24:30 +0100
Even modest hardware should be able to balance at line speed so unless
you have real bad hardware, I don't see a problem. However, I don't use
SMTP but there has been info about this on this list so some people
definately do.


On Tue, 2005-05-17 at 10:36, Ramprasad A Padmanabhan wrote:
> On Tue, 2005-05-17 at 14:01, Volker Dormeyer wrote:
> > On Tue, May 17, 2005 at 01:27:52PM +0530,
> > Ramprasad A Padmanabhan <ramprasad@xxxxxxxxxxxxx> wrote:
> >  > On Mon, 2005-05-16 at 18:37, Graham David Purcocks M.A.(Oxon.) wrote:
> >  > > You can only use DR if all machines are on the same network. If you are
> >  > > on different networks, you need NAT and if you want to do port
> >  > > redirection, and you can tunnel over WANs
> >  > 
> >  > I have a doubt , when you say "all machines on the same n/w" you mean
> >  > all the server machines right ? The client can connect to the server
> >  > pool behind the LVS from anywhere in the internet.
> > 
> > All real server machines and the LVS system itself are meant here. The
> > sketch on [1] should make it clear. Yes, the clients can connect from
> > anywhere.
> > 
> >    1. http://www.linux-vs.org/VS-DRouting.html
> >  
> 
>     In case of an HTTP server most of the data is from the HTTP server
> to the client. And so the throughput is high , since the server to
> client packets are directly routed from the server and not the LVS
>     Will there be any drop of throughput if I use LVS for a set of SMTP
> servers. Because these SMTP servers are going to recieve mails , and
> most of the packets are client to server. These packets have to routed
> via the LVS only
>     Is there anyone already using LVS for SMTP servers
> 
> 
> Thanks
> Ram
>    
> 
> 
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