RE: [tequila/sls] comments on the TEQUILA draft by W. Almesberger

From: Ilias Andrikopoulos (i.andrikopoulos@eim.surrey.ac.uk)
Date: Fri Oct 13 2000 - 16:52:50 CEST

  • Next message: Carlos Alberto Kamienski: "Re: [tequila/sls] comments on the TEQUILA draft by W. Almesberger"

    Hello Vishwa,

    You can find it at the www.ist-tequila.org website if you click on the
    "SLS interest" link which is on the left. There is a link to the draft at
    the bottom of that page.

    Regards,

    Ilias

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    On Fri, 13 Oct 2000, Rao, Viswanatha wrote:

    >Hello,
    >Can you please let me know where I can get this TEQUILA draft?
    >
    >Regards
    >Vishwa
    >
    >
    >-----Original Message-----
    >From: Marcus Brunner [mailto:brunner@ccrle.nec.de]
    >Sent: Friday, October 13, 2000 9:10 AM
    >To: sls@ist-tequila.org
    >Subject: Re: [tequila/sls] comments on the TEQUILA draft by W.
    >Almesberger
    >
    >
    >Dear all,
    >
    >Yves, you stated in Pittsbourgh, that you want to go for a BOF. You
    >already asked for it?
    >If no we should start discussing, what the purpose/goal of the WG is.
    >With SLS document, which is I think very premature, it is not clear for
    >me what the target standard should be in the area of SLS and its
    >negotiation.
    >
    >Some comments to Werner's
    >
    >> 1.2, page 4, paragraph 4, "(template)"
    >> Is this really a template ? Or is rather a collection of
    >
    >Would it be a good idea to model the SLS using CIM (as in the Policy
    >Framework, where the draft actually was very well placed by Bert W.)
    >
    >>3.1, general.
    >> Typical SLAs in use today include geographic references like "no more
    >> than X ms RTT to any of our routers in Europe". Example:
    >> http://www.uk.uu.net/customerservices/sla/tandcs/
    >>
    >> Such specifications are probably too difficult to express in a general
    >> formal way, so the current approach of ignoring them seems appropriate.
    >> Nevertheless, it may be good to mention them, simply due to their
    >> current practical relevance.
    >
    >I don't think that they are too difficult, but on an other level of
    >abstraction. (part of domain name? Some specific countries, regions etc.
    >
    >>3.2, list, DSCP.
    >> Why is it only a single DSCP ? Also, is there only a single Flow ID
    >> per SLS, or can there be many ?
    >
    >A set of DSCPs is definitly needed.
    >
    >>3.2, list, page 6, Source information.
    >> This highlights some problems with the formality chosen: usually,
    >> "X" and "set of X" are distinguished. But here (and also for the
    >> destination), "set of source prefixed" only appears as a set.
    >
    >I have problems with the exclusive OR for src & dest addresses.
    >
    >>5. (and also bits of 1.2, etc.)
    >> The discussion on signaling appears premature and probably beyond
    >> the scope of a document specifying SLS parameters and semantics.
    >
    >I think there should be a requirements draft for the negotiation anyway.
    >
    >Marcus
    >Koch Berthold wrote:
    >>
    >> Dear all,
    >>
    >> on behalf of Werner Almesberger (EPFL) I'm sending his comments on the
    >> TEQUILA draft.
    >>
    >> Best Regards
    >>
    >> Bert
    >> <<C.C.txt>>
    >>
    >> -
    >> _____________________________________________________
    >> Bert F. Koch Siemens AG, ICN WN CS EK P
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    >> Germany Mail: Berthold.Koch@icn.siemens.de
    >> Internet:
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    >> _____________________________________________________
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    >> _____________________________________________________
    >>
    >> ------------------------------------------------------------------------
    >> Name: C.C.txt
    >> C.C.txt Type: Plain Text (text/plain)
    >> Encoding: quoted-printable
    >
    >--
    >
    >Dr. Marcus Brunner
    >C&C Research Laboratories
    >NEC Europe Ltd.
    >
    >E-Mail: brunner@ccrle.nec.de
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    >
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    >
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    >



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