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Dear Hatt Tom,
I may assume you compare other Comercial like Brocade ADX series with Linux
LVS DR Mode.
Older Brocade ADX series work allmost equal to Linux LVS NAT.
I had an new Brocade 2k ADX cluster in my hands end last year ,
they still require an "transfer network(natting the realservers)" when
streched accross Datacenters.
Thus - Linux LVS Directors are not equal as Brocade Directors.
At Linux LVS NAT the Realserver access public network through/from lvs
director witch cause also creating BIG Network Load on lvs director .
Thus for that the sizing of Linux LVS NAT Directors will be Big system
resources.
At LVS DR only handel the packet redirect managment, NO NATTING , NOT beeing
default router for realservers,
and most Impressive : cause NOT creating big network Load on lvs director .
LVS DR in that way the Most impressive Steaming Tech :
With an smal ( Thin ) Linux DR LB systems < 512MB ram you can Overload an
Public +1G line without near ZERO CPU load on the LB , but busy Realservers ;-)
.
--
Mit freundlichen Grüßen / Best Regards
Horst Venzke ; PGP NET : 1024G/082F2E6D ; http://www.remsnet.de
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> Gesendet: Freitag, 03. Januar 2014 um 16:41 Uhr
> Von: "Malcolm Turnbull" <malcolm@xxxxxxxxxxxxxxxx>
> An: "LinuxVirtualServer.org users mailing list."
> <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
> Betreff: Re: [lvs-users] the network structure of DR mode ?
>
> Yes, in fact it usually has to (director is not usually the gateway in DR
> mode).
>
>
> On 3 January 2014 14:07, Hatt Tom <net.study.sea@xxxxxxxxx> wrote:
> >>
> >> Regulary with LVS DR .. LB´s and Realservers been connected to the SAME
> >> Network using the same network( layer 2/3 )switch(s).
> >
> > does this mean that realserver can access public network not through
> > lvs director ?
> >
> >
>
>
>
> --
> Regards,
>
> Malcolm Turnbull.
>
> Loadbalancer.org Ltd.
> Phone: +44 (0)870 443 8779
> http://www.loadbalancer.org/
>
> _______________________________________________
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