RE: Frameformat in a l2cs gmpls rnvironment.

[Heiles Juergen <juergen.heiles@siemens.com>]

GMPLS for SONET/SDH has no impact on the SONET/SDH data plane. It introduces a control plane for connection setup instead of a network management based connection setup. GMPLS for Ethernet can work in the same way. Ethernet as such is cl, but VLANs are setup and GMPLS can provide a control plane for VLAN setup. The Ethernet data plane is not changed and MAC address learning and forwarding is still be done within a VLAN. So no change to the Ethernet data plane. No GMPLS traffic is introduced, it is still VLAN traffic.
Introducing a dedicated GMPLS label for Ethernet (GMPLS traffic) goes beyond GMPLS as a control plane technique.

Regards

Juergen


 

> -----Original Message-----
> From: owner-ccamp@ops.ietf.org 
> [mailto:owner-ccamp@ops.ietf.org] On Behalf Of Loa Andersson
> Sent: Friday, July 22, 2005 12:05 PM
> To: Pär Mattsson
> Cc: ccamp@ops.ietf.org
> Subject: Re: Frameformat in a l2cs gmpls rnvironment.
> 
> Per and Dimitri,
> 
> I would like to come down stronger than that, for me it is
> a very strong requirement that the same switch can handle
> both VLANs and GMPLs trafic correctly. I can't dsee how that
> could be done if using the VLAN tpid to indicate GMPLS
> traffic.
> 
> /Loa
> 
> Pär Mattsson wrote:
> >>hi par, one of the possibilities that has been considered 
> to cope with
> >>this requirement is to use a dedicated TPID for the Ethernet labeled
> >>frames; this would allow differentiated processing with non-labeled
> >>framesthanks.
> > 
> > 
> > That seems to make more sence. If that frame is to be sized 
> like a 802.1q
> > frame. There is not that much space left to a label. Or is 
> the demand to
> > use jumboframes ?
> > Has there been any discussion on labelstacking, and mainly 
> where to place
> > the information?
> > 
> > Regards.
> > Per
> > 
> > 
> > 
> 
> 
> -- 
> Loa Andersson
> 
> Principal Networking Architect
> Acreo AB                           phone:  +46 8 632 77 14
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>