Re: [tequila/sls] predefined services / SLS ?

From: Panos Trimintzios (p.trimintzios@eim.surrey.ac.uk)
Date: Thu Nov 02 2000 - 11:56:08 CET

  • Next message: DJamel H. Sadok: "Re: [tequila/sls] predefined services / SLS ?"

    Dear Jerry hi,

    On Wed, 1 Nov 2000, Jaroslaw Sydir wrote:

    -Michael,
    -
    -I'm not sure that I understand your question. If the traffic is truely
    -best effort then it requires no guarantees and you don't care about it
    -in your traffic engineering. It gets the lowest priority in the network
    -and is dropped in favor of the guaranteed traffic.

    Even if the traffic is "truely best effort" as you mention above you DO
    care about it in the traffic engineering of your network, since you do not
    want this type of service to be starved. This means that wnen you engineer
    your AS you should always try to keep some of its resources "free" to be
    used by BE traffic.

    -If you want to provide a "slightly better than best effort" service,

    What do you mean "slightly better than best effort"? Couldn't this type of
    service offering handled by a qualitative (or another)SLS? So if you name
    this as the "lowest of Olympic Services" or "slightly better than best
    effort" does it make much difference? I don't know in general but when it
    comes to engineering again it doesn't.

    cheers,

    PanOS

    -then this implies some level of performance guarantees for some amount
    -of this traffic. In this case you would describe it in terms of
    -individual e2e SLS just like the other types of services.
    -
    -Jerry
    -
    -
    -Michael Smirnov wrote:
    ->
    -> On Wed Nov 1 00:51:41 2000 Jaroslaw Sydir wrote:
    ->
    -> > Jean-Pierre and Pierrick,
    -> >
    -> > A traffic matrix (network wide SLS) can be specified as a set of individual e2e
    -> > SLS/services (represending the trunks that make up the traffic matrix).
    -> <...>
    ->
    -> How you plan to specify best effort traffic?
    ->
    -> cheers
    ->
    -> Michael
    -

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