[c-nsp] Regarding HSSI Loop back test

[krishna at siticable.co.ug]

Dear Gert,

As the comtech CDM 600 has the data ineterface as EIA-422/530, V.35, Sync
EIA-232, LVDS Iam using LVDS to HSSI converter. Any clue that how can I test
HSSI cable?

Thanks,

Kris.


Quoting Gert Doering <gert at greenie.muc.de>:

> Hi,
> 
> On Fri, Jul 06, 2007 at 04:47:55PM +0300, krishna at siticable.co.ug wrote:
> > surpricingly the interface stats also looks fine.
> > 
> > Hssi2/0 is up, line protocol is up
> [..]
> >      696594 input errors, 578459 CRC, 0 frame, 90706 overrun, 720 ignored,
> 
> > 27429
> >  abort
> 
> Welll... I wouldn't call this "fine".  Something in your hardware setup
> is not right - either the HSSI cabling (never heard of using a LVD
> converter here...) or the actual CSU/DSU box configuration.
> 
> The interface shouldn't show CRC errors.  Ever.
> 
> 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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