[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: I-D Action:draft-takacs-ccamp-revertive-ps-00.txt
Hi Loa,
I assume a part of your comment/question relates to problems with
reversion if LSP setup and holding priorities are mismatched. In this
case the worker may be already deleted before the reversion would take
place. This is certainly an interesting question...
...at a first thought an explicit revertive bit may be used to override
the priorities for LSPs with revertive protection.
Best regards,
Attila
> -----Original Message-----
> From: Loa Andersson [mailto:loa@pi.nu]
> Sent: Wednesday, July 09, 2008 12:01 PM
> To: ccamp; Attila Takacs
> Subject: Re: I-D Action:draft-takacs-ccamp-revertive-ps-00.txt
>
> Attila,
>
> a neat draft that does what it sets out to do. For the moment
> I've no actual comments on the draft itself (might have when
> I'd time to think about in detail), but more meta-question.
>
> It is not a given that the revertive behavior always is
> beneficial. In networks that are very dynamic it might be
> optional to revert, let the traffic stay on the protecting
> path or replace them altogether.
>
> Wouldn't it be interesting to discuss more in detail when a
> revertive behavior is needed/wanted and when it is not.
>
> /Loa
>
> Internet-Drafts@ietf.org wrote:
> > A New Internet-Draft is available from the on-line
> Internet-Drafts directories.
> >
> > Title : GMPLS RSVP-TE recovery extension for
> data plane initiated reversion
> > Author(s) : A. Takacs, B. Tremblay
> > Filename : draft-takacs-ccamp-revertive-ps-00.txt
> > Pages : 11
> > Date : 2008-07-06
> >
> > RSVP-TE recovery extensions are specified in [RFC4872] and
> [RFC4873].
> > Currently these extensions cannot signal request for revertive
> > protection to the remote endpoint. This document defines a
> new bit to
> > signal this request and a new field to specify a wait-to-restore
> > interval.Requirements Language
> >
> > The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
> > "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and
> "OPTIONAL" in this
> > document are to be interpreted as described in
> >
> > A URL for this Internet-Draft is:
> >
> http://www.ietf.org/internet-drafts/draft-takacs-ccamp-revertive-ps-00
> > .txt
> >
> > Internet-Drafts are also available by anonymous FTP at:
> > ftp://ftp.ietf.org/internet-drafts/
> >
> > Below is the data which will enable a MIME compliant mail reader
> > implementation to automatically retrieve the ASCII version of the
> > Internet-Draft.
> >
> >
> >
> ----------------------------------------------------------------------
> > --
> >
> > _______________________________________________
> > I-D-Announce mailing list
> > I-D-Announce@ietf.org
> > https://www.ietf.org/mailman/listinfo/i-d-announce
> > Internet-Draft directories: http://www.ietf.org/shadow.html or
> > ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>
>
> --
> Loa Andersson
>
> Principal Networking Architect
> Acreo AB phone: +46 8 632 77 14
> Isafjordsgatan 22 mobile: +46 739 81 21 64
> Kista, Sweden email: loa.andersson@acreo.se
> loa@pi.nu
>