Re: [mpls] Updated drafts - draft-kini-mpls-ring-frr-facility-backup, draft-kini-mpls-fast-lsp-alert

Dear Autumn,
I'm quite surprised to read your reply to Julien. My understanding of your
proposal is that all PLRs share the same u-PLR for given ring segment of
LSP. Please correct me if my understanding is different from authors
intention.
I'd like to add to Julien's comment that RFC 4873 seems relevant to your
solution as well as RFC 4872. And I'd ask the same question as Julien in
regard to not referencing RFC 4873.

Regards,
Greg

On Mon, Jul 26, 2010 at 11:30 AM, Autumn Liu <autumn.liu@ericsson.com>wrote:

> Hi Julien,
>
> draft-kini-mpls-ring-frr-facility-backup describes a mechanism to let the
> primary LSP be aware of what the bypass LSP for corresponding protected
> facility. If my understanding is correct, the association mechanism defined
> in 4872 is used to associate the primary and backup LSPs. This is not good
> enough for the problem the draft is trying to address since each link/node
> along the primary LSP may have different bypass LSPs.
>
> Regards,
> Autumn
>
>
> -----Original Message-----
> From: mpls-bounces@ietf.org [mailto:mpls-bounces@ietf.org] On Behalf Of
> Julien Meuric
> Sent: Monday, July 26, 2010 10:40 AM
> To: Sriganesh Kini
> Cc: mpls@ietf.org
> Subject: Re: [mpls] Updated drafts -
> draft-kini-mpls-ring-frr-facility-backup, draft-kini-mpls-fast-lsp-alert
>
> Hi Sriganesh.
>
> The mechanism described in draft-kini-mpls-ring-frr-facility-backup
> reminds me of end to end recovery (or more specifically end to end
> protection), as enabled by RFC 4872. That is all the more similar because
> the association mechanism is already defined in there, with a dedicated
> RSVP-TE object. RFC 4872 is Standard Track: is there any rational for not
> considering it?
>
> Regards,
>
> Julien
>
>
> Le 26/07/2010 18:59, Sriganesh Kini a écrit :
> > FYI - These updated version of these drafts were presented today at
> > IETF78.
> > http://tools.ietf.org/html/draft-kini-mpls-ring-frr-facility-backup-01
> > http://tools.ietf.org/html/draft-kini-mpls-fast-lsp-alert-01
> > Thanks
> >
> > - Sri
> >
> >
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