RE: SDH hierarchy

[Heiles Juergen <Juergen.Heiles@icn.siemens.de>]

Soumen,

a standard STM-256 doesn't support a STM-64, it supports the VC-3/4 that are transported within the STM-64. This means that the STM-64 section overhead is terminated and only the VC-3/4 are passed to the STM-256. The STM-256 adds its own section overhead.
I know of proprietary solutions that also allow to transport some of the STM-64 section overhead over the STM-256.


Juergen

> -----Original Message-----
> From: Karmakar, Soumen [mailto:soumen@trillium.com]
> Sent: Thursday, August 30, 2001 1:19 AM
> To: 'ccamp@ops.ietf.org'
> Subject: SDH hierarchy
> 
> 
> Hello,
> Can a  STM 64 signal be supported on the STM 256 link ? What 
> would be the
> case if the link supports / not support transparency ?
> I would appreciate if someone throws light on it.
> Thanks
> Soumen
> 
> 
> 
>