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 Legal Notice: This transmittal and/or attachments may be privileged or confidential. It is intended solely for the addressee named above. Any review, dissemination, or copying is strictly prohibited. If you received this transmittal in error, please notify us immediately by reply and immediately delete this message and all its attachments. Thank you.
> Gesendet: Freitag, 03. Januar 2014 um 16:41 Uhr
> Von: "Malcolm Turnbull" <malcolm@loadbalancer.org>
> An: "LinuxVirtualServer.org users mailing list." <lvs-users@linuxvirtualserver.org>
> 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@gmail.com> 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/
>
> _______________________________________________
> Please read the documentation before posting - it's available at:
> http://www.linuxvirtualserver.org/
>
> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org
> Send requests to lvs-users-request@LinuxVirtualServer.org
> or go to http://lists.graemef.net/mailman/listinfo/lvs-users
>
