[c-nsp] Assurared BW to customer

Gert Doering gert at greenie.muc.de
Wed Oct 27 14:23:11 EDT 2010


Hi,

On Wed, Oct 27, 2010 at 09:15:48AM +0530, jack daniels wrote:
> MAP GE to 4 STM1  --
> 
> STM1 form (PROVIDER A)
> STM1 form (PROVIDER A)
> STM1 form (PROVIDER B)
> STM1 form (PROVIDER B)
> 
> This is done for redundancy ...In case  Providers ( A ) go down then
> we have only 155*2 BW left.(CONGESTION)

Redundancy applied at the wrong place.  Now it's "whatever provider
has problems, you will have problems in *both* cases".

Since you have another circuit available, more useful redundancy would
be "4x STM1 from provider A -> GE A, 4x STM1 from provider B -> GE B".

If that's not feasible, you could check with your STM<->GE conversion
box whether it can be configured to drop the GE circuit if not all 4 STM1
are up - I can't say whether your box can do this, but it might
(similar to the "multilink min-links..." setting in a cisco dialer).

gert
-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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