Re: [spring] Beyond SRv6.

Robert Raszuk <robert@raszuk.net> Fri, 06 September 2019 14:18 UTC

Return-Path: <robert@raszuk.net>
X-Original-To: spring@ietfa.amsl.com
Delivered-To: spring@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8957D120C5B for <spring@ietfa.amsl.com>; Fri, 6 Sep 2019 07:18:13 -0700 (PDT)
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, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=raszuk.net
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 h14r8K7vMaaG for <spring@ietfa.amsl.com>; Fri, 6 Sep 2019 07:18:11 -0700 (PDT)
Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) (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 638C3120C19 for <spring@ietf.org>; Fri, 6 Sep 2019 07:18:11 -0700 (PDT)
Received: by mail-qk1-x72e.google.com with SMTP id m2so5716281qkd.10 for <spring@ietf.org>; Fri, 06 Sep 2019 07:18:11 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=raszuk.net; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=l5gSRcJPw12IJrjtr/uZPY2bpNDhHQNekcL1KstXumk=; b=AA/56K1cUJPLQw97BKZRiZ4TeR+gPo3sTjMV4XwPwbmlZVdQdRO0WjJoR1vnyVsff8 YmAa4Azc6tBk2m97UPqdf0CSJMb1+uKU5jOfR3SiCpLWiypDbj5Rzepj8P1UTsHFZnJr QKY3YakzOyyN7FpXCj0VAN/6ExfEvhqaN62NdhMbFJJ1VXVxOxFbbvbPe4gq03DDdw74 ZUyXUFoqStoshSZQexTAKTuDkaQ59r5sW2B0pgL5HvRA2cE+it4kxM20B4PuzCamSfbq dcCkelnZ9XPKMzcZbDLUm00uTTInrbGn9bOlKFP0OwDcG9Ibh00MM+0CM5eQeL23ffY8 o2FA==
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=l5gSRcJPw12IJrjtr/uZPY2bpNDhHQNekcL1KstXumk=; b=hJCnxkpTBcF3MSGJVZit2CiUHCEssDTwbhlYKEqdHZs8yQW1VJP0fBoTaia1ziqbGL pVb+EhLN5NRMfy3Q8/EwqNAtfNr9RTT4E15IA+9AwJzOtp7p1fqvY4yGpeFsRENVYX25 ywyVAeq5FCAYJYmtKaUErUaz5VZw4L3TzPm1w7VjFixqY5tEqyEE6SzEL5AXmktTr9fl 6vxh3yoarwoWY0dB7QKbt+AMf/HfQ42DBsSH2cAZTxdGdkZnBKUYGHFDqEIic38bfzmr VeecfR2zec12ex56ARzaUt2ZZazSLgOpbJ4DssQF2cLsnnSN452Mqppk4db6k+NHtWa6 /gmQ==
X-Gm-Message-State: APjAAAXGwo7NUE0RT9KobH5/lBMfvKHwkhj0eOf9M59LAm9D45q/rFqd XVtcyLeMoBJH8jyHRXTnCxlX/0VO6i890q3t9fSYDA==
X-Google-Smtp-Source: APXvYqyRzY0OysoTryEvrF2RzfDMemSI6YvG9ZaOx7fcL2SJS4f96nk3v5NJSrhf3cUE53nJfBnEPIhfhAvPruFQ+/M=
X-Received: by 2002:a37:2784:: with SMTP id n126mr8626886qkn.302.1567779490351; Fri, 06 Sep 2019 07:18:10 -0700 (PDT)
MIME-Version: 1.0
References: <CAHd-QWtA21+2Sm616Fnw0D-eB7SNb_BeG8-A-MCLLFgTwSpOsg@mail.gmail.com> <BYAPR05MB54632F09C712ADB30138CFA9AEBE0@BYAPR05MB5463.namprd05.prod.outlook.com> <BYAPR19MB3415D21403394F8129A4BAD8FCB90@BYAPR19MB3415.namprd19.prod.outlook.com> <30491F13-C652-45C3-AB2B-95F765FBB4EA@juniper.net> <65C5CB04-3A2F-4F83-A7C8-2045154F93AE@cisco.com> <BYAPR05MB5463EC3250F2A303A3641839AEBA0@BYAPR05MB5463.namprd05.prod.outlook.com> <91CBADAD-EFE6-46E1-A9D3-DAA111357179@juniper.net> <CAOj+MMGyUFRPDqCBo5SbLX486o_9GLpM6Zxf8KSt1voWiqhkGQ@mail.gmail.com> <E8D473B5-3E8D-4339-9A79-0CAE30750A55@juniper.net>
In-Reply-To: <E8D473B5-3E8D-4339-9A79-0CAE30750A55@juniper.net>
From: Robert Raszuk <robert@raszuk.net>
Date: Fri, 06 Sep 2019 16:17:55 +0200
Message-ID: <CAOj+MMFOy5PyTo=jPJkVrQOctdWjsTbD=7ix-2n89vodKzT3gQ@mail.gmail.com>
To: Srihari Sangli <ssangli@juniper.net>
Cc: "Zafar Ali (zali)" <zali@cisco.com>, Tarek Saad <tsaad.net@gmail.com>, Rob Shakir <robjs@google.com>, SPRING WG List <spring@ietf.org>, "6man@ietf.org" <6man@ietf.org>, Ron Bonica <rbonica@juniper.net>
Content-Type: multipart/alternative; boundary="0000000000009be3b30591e31b82"
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/1_AchRjn5RZ9tiMUXb2jlrGAua4>
Subject: Re: [spring] Beyond SRv6.
X-BeenThere: spring@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Source Packet Routing in NetworkinG \(SPRING\)" <spring.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/spring>, <mailto:spring-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/spring/>
List-Post: <mailto:spring@ietf.org>
List-Help: <mailto:spring-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/spring>, <mailto:spring-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 06 Sep 2019 14:18:19 -0000

I don't think so.

In OAM packets are on purpose made huge - even up to MTU to make sure real
customer packets can go through or to detect and diagnose MTU issues. So
adding SRH to it is nothing one can call inefficient.

Wrong tree :)

Cheers,
R.

On Fri, Sep 6, 2019 at 4:14 PM Srihari Sangli <ssangli@juniper.net> wrote:

>
>
> On 06/09/19, 4:32 PM Robert Raszuk from robert@raszuk.net said >
>
>
>
> Not really. Only SR OAM packets may need it. Is that a real problem ?
>
>
>
> Thanks for clarification. Like Ron pointed out before, its inefficient
> encoding.
>
>
>
> srihari…
>
>