Re: [mpls] entropy label indicator label indraft-kompella-mpls-entropy-label

[Curtis Villamizar <[e-mail]>]

In message <[e-mail]>
John E Drake writes:
>  
>  
> Lucy,
>  
> Yes it does.  That is the whole point.  That is how the egress knows
> whethe= r the ingress has placed an entropy label in the stack.  (That
> is why we te= rmed it the 'Entropy Label Indicator'.)
>  
> Thanks,
>  
> John


OK.  I see the point of avoiding the reserved label and the reason
that the LSP egress only needs to recognize it.

I still feel that the restriction to put this at BOS is not necessary.
It must only be below the forwarding label of the egress for that LSP.

Curtis


> From: Yong Lucy [mailto:[e-mail]]
> Sent: Tuesday, July 27, 2010 6:25 AM
> To: John E Drake; Kireeti Kompella; 'Shane Amante'; [e-mail]
> Subject: RE: [mpls] entropy label indicator label indraft-kompella-mpls-ent=
> ropy-label
>  
> What is the benefit for such control? Egress LSR does not use this value.
> Lucy
>  
> ________________________________
> From: John E Drake [mailto:[e-mail]]
> Sent: Tuesday, July 27, 2010 8:10 AM
> To: Yong Lucy; Kireeti Kompella; 'Shane Amante'; [e-mail]
> Subject: RE: [mpls] entropy label indicator label indraft-kompella-mpls-ent=
> ropy-label
>  
> Lucy, we discussed this and decided it was better to have the egress
> contro= l the values of the ELI it advertises.  Plus, getting a
> reserved value woul= d be difficult
>  
> From: [e-mail] [mailto:[e-mail]] On Behalf Of Yon=
> g Lucy
> Sent: Tuesday, July 27, 2010 5:31 AM
> To: Kireeti Kompella; 'Shane Amante'; [e-mail]
> Subject: [mpls] entropy label indicator label in draft-kompella-mpls-entrop=
> y-label
>  
> Hi Kireeti and Shane,
>  
> Could we consider use one of reserved label for ELI purpose? This will
>  make= implementation much easy, i.e. not need to keep the state for
>  each ELI lab= el. The approach can be used in general for RSVP-TE and
>  BGP as well.
>  
> Regards,
> Lucy