From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oa1-x31.google.com (mail-oa1-x31.google.com [IPv6:2001:4860:4864:20::31]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id A5B053B29D for ; Sun, 8 May 2022 10:31:29 -0400 (EDT) Received: by mail-oa1-x31.google.com with SMTP id 586e51a60fabf-e93bbb54f9so12046782fac.12 for ; Sun, 08 May 2022 07:31:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:from:mime-version:date:subject:message-id :to; bh=LMh6EIHhquSenAZTwB39q1LOTV0Fasmoxt26qypM8pw=; b=mLLhqy38I8Odr6clMAO3zvExcjZ5bX7IeUaD8uLCrbeGIw7cyagErwr2yjErvT4ClZ yjO9v2ndyQCVagMQPw8A2zR1QkjhAaaGB6/yCiKZovkoJhpLbK3oX01Xl2wneAxy/Vjx bxo4jyX17AN/DVN+8f0tJn97oiHn4Uc89nLSwjJJW4fYTlG8r7+kQPGVTIgWpL4uomqI fCpIP0gvqW0KA+AoEAD5KY7LTZBfdKDzP3gBRkgVfnanRYcvHU4y+6oNqK+P2uR3BBN0 k2fSEh34qhyg8qFRkFX9l+vfq7ExIbauXTHyGz+MkMKFC+RDNoxZ168fSS8ZDjKKYXp2 SXWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:content-transfer-encoding:from:mime-version:date :subject:message-id:to; bh=LMh6EIHhquSenAZTwB39q1LOTV0Fasmoxt26qypM8pw=; b=dA1OzYC2+5JWpGThljQqRYZ9AnE0VkpbA/9ex1Etv/G03K8caLm4VYe/PkvVDJicTl 4Pe7bMtSxWeay0ndyD35ivZbvscvG46Ie8s/xR5JF2UZt7GWJ1KUXftRPSKnFlLh3Evh wRP+ajkOYTT4M/ixlWR1fEZdlihzwEtvw1b/rxoXZSOSG0F4zEkDa6ESQ8sR93kd1Wpq buaQgg9VcdDni62eUXMOwCgi8FfvYzDjP9c3nsDJwwtKn3SpQnKEMyVL2umQ5f2erik6 pTGJlegugvrOHZcMPTUlACIFaRhyZqWLLaR7AAlC7pKVzYnKVj9h05MOO5xizNw69dcB vUwQ== X-Gm-Message-State: AOAM532MngWbzXLOKghlhIuXtlLN1C3EZmXvTHEbQ82a8WeupS6XQ3Sj Xlon1D/UogYD07SyGCTzT8ovwu0a7VInSg== X-Google-Smtp-Source: ABdhPJz0Ogn3L0Z6U8xzxQHskfSq+9x3OuGdrxmWzEARBG2/Wx9JCfDJt/bXVwV+JAvZbuSaregjRw== X-Received: by 2002:a05:6870:f146:b0:e9:2116:41e2 with SMTP id l6-20020a056870f14600b000e9211641e2mr7792277oac.162.1652020288720; Sun, 08 May 2022 07:31:28 -0700 (PDT) Received: from smtpclient.apple ([2604:3d40:ff00:0:fc08:882e:4aad:9836]) by smtp.gmail.com with ESMTPSA id e18-20020a9d6e12000000b006060322125fsm3801671otr.47.2022.05.08.07.31.28 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 08 May 2022 07:31:28 -0700 (PDT) Content-Type: multipart/alternative; boundary=Apple-Mail-8EF8A75C-ACBA-4F31-9379-5370A81C200A Content-Transfer-Encoding: 7bit From: Jarad Olson Mime-Version: 1.0 (1.0) Date: Sun, 8 May 2022 08:31:27 -0600 Message-Id: <1FEEA029-B564-4C46-99A7-50B5F747F619@gmail.com> To: cake@lists.bufferbloat.net X-Mailer: iPhone Mail (19E258) X-Mailman-Approved-At: Fri, 13 May 2022 13:04:12 -0400 Subject: [Cake] Latency Testing Using iOAM X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 May 2022 14:31:29 -0000 --Apple-Mail-8EF8A75C-ACBA-4F31-9379-5370A81C200A Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello! Has anyone ever tried using in-situ OAM for testing latency? It would seem t= o me that the protocol is ideal for this purpose: it adds metadata to actual= user packets. The Linux kernel has support for it as of 5.15, Cisco and Jun= iper have implemented it as well. Here=E2=80=99s an article on the Linux kernel implementation: https://legacy= .netdevconf.info/0x14/pub/papers/32/0x14-paper32-talk-paper.pdf If anyone has tried this, how did it turn out? Thanks much!= --Apple-Mail-8EF8A75C-ACBA-4F31-9379-5370A81C200A Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello!
Has anyone ever tried using in-s= itu OAM for testing latency? It would seem to me that the protocol is ideal f= or this purpose: it adds metadata to actual user packets. The Linux kernel h= as support for it as of 5.15, Cisco and Juniper have implemented it as well.=

Here=E2=80=99s an article on the Linux kernel impl= ementation: https://legacy.netdevconf.info/0x14/pub/paper= s/32/0x14-paper32-talk-paper.pdf

If anyone has t= ried this, how did it turn out?

Thanks much!
<= /body>= --Apple-Mail-8EF8A75C-ACBA-4F31-9379-5370A81C200A--