[c-nsp] SXI3 strange issue, Loose mode uRPF jumps to strict by itself

Gert Doering gert at greenie.muc.de
Thu Jul 29 16:10:24 EDT 2010


Hi,

On Thu, Jul 29, 2010 at 09:21:49PM +0200, bas wrote:
> A couple of minutes before the problems started an engineer had
> configured a customer facing interface with strict mode uRPF.
> Apparently this configuration changed triggered a bug that caused
> upstream interface loose mode to be automagically turned to strict
> mode.

That's documented.  The box can only run a single uRPF mode globally - so
"all uRPF interfaces loose" or "all uRPF interfaces strict", no combinations
possible.  Hardware limitation, as far as I understand.

gert
-- 
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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