Re: [mpls] working group last call on draft-ietf-mpls-spring-entropy-label

Hi authors,

As an additional comment, I'd like a see a more normative definition of "RLD" as this is an important point for the interop.
In particular, the grey zone is whether RLD is before the ELI, or include the EL, or include both the EL and ELI. Also, is RLD only applicable when EL is used or is it also applicable when load-balancing is performed based on the hashing of a stack of labels (a stack of RLD labels)?

>From the description of the text, I think I read that both EL and ELI needs to be within the RLD. But on the other hand, there has been a discussion on the mailing list about RLD=1, which would not even allow reading the ELI label.

Thanks,
Regards,
Bruno

> From: DECRAENE Bruno IMT/OLN > Sent: Monday, May 02, 2016 2:59 PM
> 
> Hi authors,
> 
> Please find below some comments on the document (§4).
> 
> - I would expect that network operator may need some flexibility to
> influence the placement of the EL(s) based on the set of constraints.
> - The need for load-balancing seems significantly dependent on the 1)
> relative size of the flow (which is typically egress dependent) and 2) the
> presence of ECMP paths (IOW, I may not care if node N does not see the EL,
> if node N has a single link/path toward the egress). This may lead to
> additional requirements (e.g. advertising L2 ECMP which may not be
> currently visible to the L3 ingress. For spring, eventually draft-ietf-isis-
> l2bundles may already do the job)
> 
> Both points are not touched in the draft, and I think these additions would
> improve the benefit of the draft.
> 
> Thanks,
> Regards,
> -- Bruno
> 
> > Working Group,
> >
> > This is to initiate a two week working group last call on draft-ietf-mpls-
> spring-
> > entropy-label.
> >
> > Please send your comments to the mpls wg mailing list (mpls@ietf.org).
> >
> > There are no IPR disclosures against this document.
> >
> > All the authors and contributors (with one exception) have stated on the
> > working group mailing list that they are not aware of any other IPRs that
> > relates to this draft.
> >
> > This working group last call ends May 12, 2016.
> >
> >
> > /Loa
> > for the MPLS wg chairs
> > --
> >
> >
> > Loa Andersson                        email: loa@mail01.huawei.com
> > Senior MPLS Expert                          loa@pi.nu
> > Huawei Technologies (consultant)     phone: +46 739 81 21 64
> >
> > _______________________________________________
> > mpls mailing list
> > mpls@ietf.org
> > https://www.ietf.org/mailman/listinfo/mpls

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