[Olsr-users] HNA announce for the same network

[Henning Rogge]

On Thu May 20 2010 22:16:42 Mitar wrote:
> Hi!
> 
> On Wed, May 19, 2010 at 2:20 PM, Henning Rogge
> 
> <(spam-protected)> wrote:
> > If you don't use NAT on the two nodes and the target network has a
> > correct route back towards the OLSR nodes, it should work. TCP might be
> > a little bit "annoyed" when the route changes because delay and packet
> > ordering might be changed, but the connectivity should be there.
> 
> But is that really useful? Having a HNA on nodes connected to the
> subnet means that you are not running OLSR in the subnet. So then you
> probably have a static route just to one of this nodes connected to
> the subnet (acting as a gateway). So if this nodes fails then having
> another node does not really help.
> 
> It would help for load-balancing but then if one node fails you would
> have just 50 % packet loss (if you have two nodes connected to the
> subnet).
> 
> Or am I missing something? Any other use case?
Maybe one of them is a backup route ? Or you could use the dyngw plugin to 
check which of the connections is still online and drop the HNAs if necessary.

And there is anycast of course. ;)

Henning Rogge
-- 
Diplom-Informatiker Henning Rogge , Fraunhofer-Institut für
Kommunikation, Informationsverarbeitung und Ergonomie FKIE
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