The MPLS WG Archive

[Ashwin Moranganti <amoranganti@appiancom.com>]

Title: RE: MPLS Trafficdriven

"traffic driven" models are not for the core internet.
But there are some applications in the VOIP networks which can use this feature.

Ashwin

-----Original Message-----
From: Javier Antich [mailto:javier.antich@telindus.es]
Sent: Wednesday, April 25, 2001 2:29 PM
To: Marinzulich, Matias; 'Ashwin Moranganti'; 'MP LS'; MPLS@UU.NET;
mpls-ops@mplsrc.com
Subject: RE: MPLS Trafficdriven

Well, that "on demand" does not mean usually "when traffic arrives", but
"when I get an entry in my routing table for that destination". However it
could be the first meaning. I am not sure whether traffic driven models
would scale in the core of Internet.

Javier.
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> -----Mensaje original-----
> De:   Marinzulich, Matias [SMTP:Matias.Marinzulich@comsat.com.ar]
> Enviado el:   miércoles 25 de abril de 2001 19:58
> Para: 'Ashwin Moranganti'; 'MP LS'; MPLS@UU.NET; mpls-ops@mplsrc.com
> Asunto:       RE: MPLS Trafficdriven
>
> Hello all, as far I can see, all cell-mode MPLS implementations (that is,
> MPLS network constructed with ATM switches) use 'on demand' label
> allocation. Since you have a very small place for save the label, the
> allocation and distribution must be highly conservative. For stay this
> minimal, all LSP are created 'on demand' in this kind of networks.
> In the other hand, MPLS networks based in routers can use 'on demand' or
> unsolicited label distribution.
>
> Matias.-
>
> > -----Mensaje original-----
> > De: Ashwin Moranganti [SMTP:amoranganti@appiancom.com]
> > Enviado el: Miércoles, 25 de Abril de 2001 10:34 a.m.
> > Para:       'MP LS'; MPLS@uu.net; mpls-ops@mplsrc.com
> > Asunto:     RE: MPLS Trafficdriven
> >
> > I have seen this as one of the feature in Lucent's IP Navigator MPLS
> > product.
> > The ports are configurable for this feature, and when a certain traffic
> > flow is detected LSPs are signalled for and the data is transmitted and
> > then LSPs are destroyed. Though this is not useful for all applications.
> > The key here is the signalling rate. If the rate is satisfactory, it is
> > useful for some applications
> >
> > thankyou
> > Ashwin
> >
> > -----Original Message-----
> > From: MP LS [ <mailto:stagempls@hotmail.com>]
> > Sent: Wednesday, April 25, 2001 8:29 AM
> > To: MPLS@uu.net; mpls-ops@mplsrc.com
> > Subject: MPLS Trafficdriven
> >
> >
> > Hello all,
> >
> > I have a question. Is there any possibile way to create a fully
> dynamical
> > Traffic driven MPLS network. So that when any packet arives at an LSR it
>
> > will analyse the IP pakket ads a label in front of it with it combines
> to
> > a
> > FEC and then just sent it to the Destination LSR?  Just till now i only
> > found that you have to ask for an LSP manualy and then the data can be
> > transported over it.
> >
> > I hope someone can make this clear for me.
> >
> > Kind regards,
> >
> > Niels Sitters
> >
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