If you're concatenating technologies together for SWIF, then yes the layers terminate. Its also a pain to interwork OAM protocols as the semantics may not match. The 17iw stuff assume we're interworking states of separate entities to get an overall view.
NIWF does have a better e2e story but as a pure overlay, you're just keeping the old game alive. Deploying old edge and new core.
Didn't quite get your third comment?
cheers
Dave
> -----Original Message-----
> From: Mark Seery [mailto:mark@mseery.com]
> Sent: Thursday, June 05, 2003 4:19 PM
> To: Shahram Davari
> Cc: pwe3@ietf.org
> Subject: RE: [PWE3] PWE Service interworking
>
>
> Shahram,
>
> --- Shahram Davari <Shahram_Davari@pmc-sierra.com>
> wrote:
> > Mark,
> >
> > 1) Each layer should have segment OAM mechanism that
> > applies only to that layer.
>
> What does that mean in an SIWF scenario. Does a layer
> terminate when it hits a SIWF?
>
> If so, then seems like a network interworking approach
> provides a better end-to-end OAM view.
>
> If not, then does that mean a subscriber gets an OAM
> view of the internals of a network in the X/MPLS case
> be suggested as an alternative?
>
> Mark
>
>
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