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On Fri, Jul 23, 2010 at 10:57:50PM +0530, Sivaraman Kannan wrote:
> Hi all
> I am a novice to LVS and have been playing around with ipvs for some
> time. Does anyone know the difference between the Local and Reinject
> 'forwarding mechanisms' (as listed by ipvsadm)? The reinject patch was added
> by a Ludo (found the patch at www.austintek.com) - would like to understand
> better before starting to use it. There is some documentation on this added
> by Ludo himself but I find it beyond me. If someone could explain the basic
> differences, that would be great. Thanks!
Hi Siva,
I'm a bit rusty on the reinject patches, but I believe that their
purpose is to allow LVS to be run in reverse more easily. That
is, rather than load-balancing connections from the outside world to
a (usually small) set of internal real-servers; load balance connections
from a (small) set of internal machines to the outside world, utilising
more than one connection to the outside world.
In contrast, Local is used when a linux-director is also a real-server.
Its just a fast-path when packets are to delivered locally.
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