The MPLS WG Archive

[Sudheer Dharanikota <sudheer@nayna.com>]

Loa Andersson wrote:

> Don,
>
> I nevr claimed that MPLS is layer, I've always claimed that MPLS
> is something entirely different. I use MPLS as a toolbox to support
> my IP network.
>

I wonder what qualifies a layer? A protocol header/trailer, an FSM, an
upside
and downside interfaces, and whatelse....

Looks like all of the above are qualities of MPLS too. So what is the
big deal if we call MPLS a layer or sub-layer or adoptation layer?

Yes.. any layer can come with an easy to use tool-kit. Looks like
MPLS comes with a bigger kit than other :-)

- sudheer

>
> /Loa
>
> > Don Fedyk wrote:
> >
> > Loa
> >
> > I don't know what you are getting at. MPLS is recognizable
> > in the forwarding plane. Yakov said this is not a requirement.
> > I pointed out that while this is true, in practice, for whatever
> > reason we end up putting a recognizable layer in the forwarding
> > plane. I just called it like I see it. If you want to build a new
> > OSI model to describe this then that is your prerogative. I don't
> > see the need.
> >
> > Don
> >
> > > -----Original Message-----
> > > From: Loa Andersson [mailto:loa.andersson@utfors.se]
> > > Sent: Wednesday, December 19, 2001 11:34 AM
> > > To: Fedyk, Don [BL60:1A00:EXCH]
> > > Cc: Yakov Rekhter; Shahram Davari; 'mpls@UU.net'
> > > Subject: Re: MPLSOAM BOF revised minutes
> > >
> > >
> > > Don,
> > >
> > > what other layers are there in the model that MPLS is a layer
> > > within?
> > >
> > > /Loa
> > >
> > > > Don Fedyk wrote:
> > > >
> > > > Loa
> > > >
> > > > My comment was in practice we treat it a layer. We should
> > > > recognize that. Others have commented on the fact the OSI model
> > > > does not capture all.
> > > >
> > > > Don
> > > >
> > > > >
> > > > > > Don Fedyk wrote:
> > > > > >
> > > > > > Yakov
> > > > > >
> > > > > > I think MPLS is a layer in its own right.
> > > > > >
> > > > >
> > > > > Do you say that MPLS is a layer according to the OSI model?
> > > > >
> > > > > /Loa
> > > > >
> > > > > --
> > > > > Loa Andersson
> > > > > Chief Architect,
> > > > > Utfors Research, Architecture and Future Lab (URAX)
> > > > > Utfors AB
> > > > > Råsundavägen 12
> > > > > Box 525, 169 29 Solna
> > > > > Office          +46 8 5270 2000
> > > > > Office direct   +46 8 5270 5038
> > > > > Mobile          +46 70 848 5038
> > > > > Email           loa.andersson@utfors.se
> > > > > WWW             www.utfors.se
> > > > >
> > >
> > > --
> > > Loa Andersson
> > > Chief Architect,
> > > Utfors Research, Architecture and Future Lab (URAX)
> > > Utfors AB
> > > Råsundavägen 12
> > > Box 525, 169 29 Solna
> > > Office          +46 8 5270 2000
> > > Office direct   +46 8 5270 5038
> > > Mobile          +46 70 848 5038
> > > Email           loa.andersson@utfors.se
> > > WWW             www.utfors.se
> > >
>
> --
> Loa Andersson
> Chief Architect,
> Utfors Research, Architecture and Future Lab (URAX)
> Utfors AB
> Råsundavägen 12
> Box 525, 169 29 Solna
> Office          +46 8 5270 2000
> Office direct   +46 8 5270 5038
> Mobile          +46 70 848 5038
> Email           loa.andersson@utfors.se
> WWW             www.utfors.se

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