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Cell Relay Retreat>MPLS WG Archive>month:2000-Dec> msg00138



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Re: GMPLS - Hierarchies

  • From: "Udo Neustadter" <neustadter@tropicnetworks.com>
  • Date: Wed, 6 Dec 2000 12:03:21 -0500
  • Cc: <mpls@UU.NET>, <ip-optical@lists.bell-labs.com>
  • Importance: Normal

May understanding is that the hierarchy build is a logical one, and no real
labels are added to the flow. The flow is identified by the specific TDM
channels. I just can not see where the waste of bandwidth is coming from.

Udo

>...
>
>  This is most likely to occur with TDM and OXC equipement at the OC-192
and OC-48 rates where there is a
>close mapping between the OXC lambda and the TDM signal bandwidth. It won't
work sell so well at lower rates
>because you waste too much bandwidth and are forced into a heirarchy
whether you want one or not.
>
>  Cheers,
>
>  Peter Ashwood-Smith
>...