[c-nsp] L2 Switchover

[Gert Doering]

Hi,

On Mon, Feb 16, 2015 at 11:28:39AM +0200, M K wrote:
> I practiced IP SLA and EEM before but my question is if he using only one subnet between him and me and the link went down physically , he will have to activate the backup SDH unit right ? so if the SDH does not support active/standby model what can I do from my side to minimize the downtime? got me ?

I said before, my crystal ball is clouded.  You're not exactly explaining
the setup very well.

If this is active/standby in SDH, you will not notice a failure and
switchover, period.  This is why "SDH".

If there are two links to your router, go with BFD (and then you'll need
two independent transit links and some IGP to transport loopbacks anyway).

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