IETF Logo Mail Archive

Re: [Teas-ns-dt] Isolation

Greg Mirsky <gregimirsky@gmail.com> Tue, 11 February 2020 03:09 UTC

Return-Path: <gregimirsky@gmail.com>
X-Original-To: teas-ns-dt@ietfa.amsl.com
Delivered-To: teas-ns-dt@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1E7211200F6 for <teas-ns-dt@ietfa.amsl.com>; Mon, 10 Feb 2020 19:09:54 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.998
X-Spam-Level:
X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wCxNfJujgA4f for <teas-ns-dt@ietfa.amsl.com>; Mon, 10 Feb 2020 19:09:51 -0800 (PST)
Received: from mail-lj1-x230.google.com (mail-lj1-x230.google.com [IPv6:2a00:1450:4864:20::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9028F120052 for <teas-ns-dt@ietf.org>; Mon, 10 Feb 2020 19:09:51 -0800 (PST)
Received: by mail-lj1-x230.google.com with SMTP id f25so9814850ljg.12 for <teas-ns-dt@ietf.org>; Mon, 10 Feb 2020 19:09:51 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=g0SMAX6bd/k6suE+yUPmSvfWOcLU7XVj+MavNj5RNaI=; b=gBd2qGy4D1ZxZAp0CFhruhqB2RSf5AYREueDsQeeliHKp59bPL53PwrAL+Ju4BOaw+ frnnU+oJpen5KUxidD6tKWUakNBeDqH3StO9YP/VwyROFZcsjcN+DQZjhrGve63LXGeX om2HqRorYNNMY1BPMbjSY0FxQXFjmR+YDMuajY5oN7escoaUjLJWQ+mTs7/ltYdrwY+L 7xqv0h+MdQQavGkAuxQff17TwzFkMNlJlx27RgI5a1MEZVGX9lDX+lVXPbCAr1LfvxhC UeMdGLeHbyivFwF1ywdszxFe/IzcA3FmBLXbiQbCGydnkytZ3E5EvS/dZdMPc4RkJnrN DFcA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=g0SMAX6bd/k6suE+yUPmSvfWOcLU7XVj+MavNj5RNaI=; b=kFU+ndrLct07aZwoKAS3ghZe5bgNUfNh2Jt2DjuC2rvdFfz3/NIaRfM+D0svDxJS9x F4SZpVtERvFppxlqusidNyxQ8dxjp3mMkr2aGu0AyVnl0Lns0cHBKfMkPz9+OKyb04VC oQLDEsLDJ8vFJrmJFV077nAWGFMKTLF1Kd+CUm9hPnvCJJVVLlQrRXSej9n+OAs68vKb sfQHeD44diBp2lO9oFZe6DP3KZR31XPKFzyUMBx6CR/duJfMvlmefACHEi+4UkXWT2On 2YLw18XM9QOIaly63wSKHHZ5kdoy5U89UKYUzV0WocLRi6hzy/59/pN15mafYb9o/zH3 v1aw==
X-Gm-Message-State: APjAAAVs5ATQW18srjLv1ihtKc89bwcSf3/vaIO0Cj41kHbdIIBAOz+r poa4xE9OcyUBlqvMYY2W1MpJ2fT18w85THMq3sgWqg==
X-Google-Smtp-Source: APXvYqz0ssh8r8+9OQFOgKQ6+NtSseF4YQSn0fkXzX2KaIRaIbCzI+OEO8UH5rGmx/nJnju8Flyr3qesK6WeRoy/+nc=
X-Received: by 2002:a2e:9f52:: with SMTP id v18mr2652549ljk.30.1581390589760; Mon, 10 Feb 2020 19:09:49 -0800 (PST)
MIME-Version: 1.0
References: <DM5PR05MB33881BBCCAB757BDE8336EBBC7190@DM5PR05MB3388.namprd05.prod.outlook.com>
In-Reply-To: <DM5PR05MB33881BBCCAB757BDE8336EBBC7190@DM5PR05MB3388.namprd05.prod.outlook.com>
From: Greg Mirsky <gregimirsky@gmail.com>
Date: Mon, 10 Feb 2020 19:09:38 -0800
Message-ID: <CA+RyBmXQ4jX4kjvSR8mAL72eUL+pxZaLGUtHrkVyBHiotmO56w@mail.gmail.com>
To: John E Drake <jdrake=40juniper.net@dmarc.ietf.org>
Cc: "teas-ns-dt@ietf.org" <teas-ns-dt@ietf.org>
Content-Type: multipart/alternative; boundary="0000000000005a9a2f059e443087"
Archived-At: <https://mailarchive.ietf.org/arch/msg/teas-ns-dt/kaFC2Dx0beTj2Qn82qf8v5t3Yes>
Subject: Re: [Teas-ns-dt] Isolation
X-BeenThere: teas-ns-dt@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: TEAS Network Slicing Design Team <teas-ns-dt.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/teas-ns-dt>, <mailto:teas-ns-dt-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/teas-ns-dt/>
List-Post: <mailto:teas-ns-dt@ietf.org>
List-Help: <mailto:teas-ns-dt-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/teas-ns-dt>, <mailto:teas-ns-dt-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 11 Feb 2020 03:09:54 -0000

Hi John,
thank you for starting the discussion. Please find my notes in-line below
under GIM>> tag.

Regards,
Greg

On Mon, Feb 10, 2020 at 8:19 AM John E Drake <jdrake=
40juniper.net@dmarc.ietf.org> wrote:

> My list currently consists of:
>
> Protection isolation - a failure in the network will not impact a
> customer's service for longer than X seconds, where X is a number in the
> range 50 msecs to some number of seconds, as specified in the SLO
>
GIM>> If we envision that a transport network slicing may provide an
underlay for applications like TSN and/or DetNet, then the lower boundary
must be lowered even further. In fact, 50 msec switchover and 10 msec
failure detection are, AFAIK, historical numbers that, I'd expect, should
be revisited as an impact on service now is more significant than it was at
the time of DS1/T1.

>
> Reachability isolation - a customer's packets will not be misdelivered to
> another customer with a probability of X, where X is a percentage in the
> range 100 to some lower percentage, as specified in the SLO
>
GIM>> I think that this is about connectivity guarantee or, its opposite,
misconnection (rate or level?).

>
> Performance isolation - a customer's performance related SLO parameters
> will not be degraded by more than X, where X is a percentage in the range
> of 0 to some higher percentage, as specified in the SLO
>
GIM>> We probably need to further characterize how the degradation being
measured, i.e., measurement interval, measurement frequency.

>
> Yours Irrespectively,
>
> John
>
>
> Juniper Business Use Only
>
> --
> Teas-ns-dt mailing list
> Teas-ns-dt@ietf.org
> https://www.ietf.org/mailman/listinfo/teas-ns-dt
>

v2.23.0 | Report a Bug | By Email