The MPLS WG Archive

["David Allan" <dallan@nortel.com>]

Hi Neil:

IMO if a reserved label defines a function and not forwarding, then it is
likely that we can envision future functions whereby they should fate share
with the LSP of interest, a far more useful behavior than not fate sharing.
Frequently they would be either bottom label or nested beneath the bottom
label...but I would not cast that in stone (witness explicit null ;-)

Fate sharing is not the case today....

Dave

> -----Original Message-----
> From: neil.2.harrison@bt.com [mailto:neil.2.harrison@bt.com] 
> Sent: Thursday, March 03, 2005 10:39 AM
> To: aatlas@avici.com; swallow@cisco.com
> Cc: mpls@ietf.org; dallan@nortelnetworks.com
> Subject: RE: [mpls] Last Call on BCP on ECMP 
> 
> 
> According to rfc3032 labels 0-15 are reserved...so its seems 
> there is a more general point here.  Further, there seem to 
> be proposals for some of these to occur at arbitrary 
> positions in the stack, eg draft-ietf-mpls-explicit-null-02.txt.
> 
> So how does this play here?
> 
> regards, Neil
>  
> > We may want another or a different example of a reserved
> > label (such as the 
> > Router Alert or even Explicit Null)
> > 
> > Alia
> > 
> > At 08:07 PM 3/2/2005, George Swallow wrote:
> > > > "The processing of the label stack for load balancing 
> may include
> > > > all MPLS labels, including those that are reserved; in 
> > such a case,
> > > > the addition of a reserved label, such as the OAM label,
> > may result
> > > > in a different path being taken."
> > >
> > >I'll probably word-smith it a bit, but I'm happy to capture the
> > >thought.
> > >
> > >...George
> > >
> > >=============================================================
> > ===========
> > >George Swallow             Cisco Systems                  
> > (978) 936-1398
> > >                            1414 Massachusetts Avenue
> > >                            Boxborough, MA 01719
> > 
> > 
> > 
> > _______________________________________________
> > mpls mailing list
> > mpls@lists.ietf.org https://www1.ietf.org/mailman/listinfo/mpls
> > 
> 
> 

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