From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 2178C3B29D for ; Thu, 13 Jan 2022 09:51:54 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1642085512; bh=v3josJCa6prPcNff4aNlnkl+7uCnikH/z5DvcjSSEJI=; h=X-UI-Sender-Class:Subject:From:In-Reply-To:Date:Cc:References:To; b=OacB+fuBLvTRUoEh0VpDAwyVGGvJO5BIVgc7zO1fBTcvoHJWdCDw6v5JjRi5EPYKk DVjV9jKDsZ4/RPLA/GeIq5yqUM1CWPqs5vJ/6iNblbjgpMxzckV7dW6IoJC40GFtaa CRX6Wj4OxZjeJ0v1swBLzrKf1l+FULXK9aPsKJSg= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from smtpclient.apple ([134.76.241.253]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1Ma24y-1mn8ZA1At2-00Vyej; Thu, 13 Jan 2022 15:51:52 +0100 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) From: Sebastian Moeller In-Reply-To: Date: Thu, 13 Jan 2022 15:51:51 +0100 Cc: cerowrt-devel Content-Transfer-Encoding: quoted-printable Message-Id: References: <6D533A43-C4E9-4D48-BC9B-26630F1E17F5@gmx.de> To: =?utf-8?Q?Dave_T=C3=A4ht?= X-Mailer: Apple Mail (2.3654.120.0.1.13) X-Provags-ID: V03:K1:p/xANxPn0q8xsaxhazy0g+JpquomJ+/7unkMkF74ae+wiE28nTx oDtRjVGTIEZRpYbY4rRU3JEtcbtez1sKvSgvEMWX2SKpVbcFQthCNpws8Mq9quh4/tH+AvP ozf1SZkYg/JlyyYOkfAu/QmbgfHMDoAeicBp5nfq9xB7wfcDuh6G2sCCX7+wqnwuyNmkEva nDFkJqCXM52rCb2p+BmoQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:aP8deieIXEk=:u+5iprQ4F9dV87UpKEAzGs zZcx7mcViO9j7+AJjUb87zJzXvyck8KGoXcYUVSBwI/Wx1/HfF8jISES/VBkbTiSv06GbPYDF +rKtD+GIFr3Alr64ZKyBN2D2etojh7L3Ahg6oubWWOeagZNbwwGHamqBEdvmqdZ0AdkjLer09 XcOJUI/y7KubH1q0KIMTW1u6Oc3l/Lgz/Xlnqyyfqgg35mOBCKMw9VbOokm3rjstiWg3tLNAo zVD0vWnVrFMUEsreTFx8e79wJIAR83h6hRw2ncd0GiDlXLblFs/mp/TqCQ4oK2E1bQC9CIegj tC1N1ObSf8a172SAcw8DwP4pSArnYSvAzAP4RPldYHRFAv/yvdm/tam71SXf46FZmFbtJ1aY+ hfxO+G0ZkqkBnKWBUnIe3U4b/Cc1BJ8afb/l1KhQ9VKk5kHn0GsxkUxNtL44JYfTxeK77BNaz qv/OgGCf5y1fy1SDmKTqRrFcTNrVo96c2BGoGVycEBYDakeNreF/idd7xHZ1RKWCH+ji1care 8QxcgA7ueNh44BwkPdNdaNS+BpCJc2otZscx543H/iOJuHQC1pZz5BJRIvmlPBWCN72HTPxuP GsRBMO8Z3Ozmk+akP/Nxfesh+E4nRvOUOO6Hr6/19r2ID7thkb2hDfTMdlqbdMbh0/SUArpUn XWAiTqAAiX0OsOh+CvEdegpWpX6kxdQXFryLj5FGtVLDut+63PJCy6vSjPnXNynxVJQU1+20P BkTZ00hxEHdjIvWV+tMT/yfK3cmn+1n00W0btj/3uZURYtHEJCwd48igpyxJzBffkDDlt9/6J tLF+7DJh2q2kA8MWwIfEQzur7cnxUBYoH9rSEaJWqEBamwvBWUfni/uOiTd0VAYytYn3I25XE cVef4g9W0PWnKEkkl9lmsseINV8JgEk5uyrWPyMlql+hS6m4pnw/lCqsXDhzzpKOeeAUrjxTT HsV79OmiszNwrb+hSX7IgknZ5v9nhOvg/99v3yoJVJXAhaty06ceZ88swP5gIkou/zWquOWpR 7Z+gkO6ZUcnRY56dEdxppKh2dILz2JEss7K4JvNCsclmRfsalsJROUtvR1SYl6V1G48sEJleT YLaUXOXq4wusdo= Subject: Re: [Cerowrt-devel] a smart SFP X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Jan 2022 14:51:54 -0000 Yes sorry, in GPON you have the unit at the telco side, often called OLT (optical = line termination/terminal or similar, which feeds the whole segment of = up to ~128 remote terminals and receives data from all) the passive = splitter (if any) and the remote customer units that are called either = ONU or ONT, but that are just two names for the same unit (not sure who = uses which nomenclature, the local incumbent seems to prefer ONU, but = their marketing name is Glasfasermodem, which just translates to = fiber-modem). Nomenclature seems ot be consistent for the whole PON = family, so in XG-PON or XGS-PON the unit apparently still are called OLT = and ONU/ONT. And given that PON requires some smarts and configurability = of the ONUs these tend to be small computers in their own right with = their own little (or not so little) OSes. Regards Sebastian > On Jan 13, 2022, at 15:38, Dave Taht wrote: >=20 > And a gpon onu >=20 > https://www.fs.com/products/133619.html >=20 > On Thu, Jan 13, 2022 at 6:23 AM Sebastian Moeller = wrote: >>=20 >> That is similar to what happens in some GPON-ONT SFPs, some run a = full small Linux distribution like OpenWrt inside.... though for = ethernet that is unexpected. >> This is also similar to SFP VDSL "modems" which likely run their own = embedded OS as well inside the SFP package (at a time there was even a = PCI VDSL2 "modem" that was actually running its own embedded system on = the PCI board, IIRC, it pretended to the main computer to be an ethernet = NIC). >>=20 >> Regards >> Sebastian >>=20 >>=20 >>=20 >>> On Jan 13, 2022, at 15:18, Dave Taht wrote: >>>=20 >>> running linux, of course. >>>=20 >>> https://blog.benjojo.co.uk/post/smart-sfp-linux-inside >>>=20 >>> -- >>> I tried to build a better future, a few times: >>> https://wayforward.archive.org/?site=3Dhttps%3A%2F%2Fwww.icei.org >>>=20 >>> Dave T=C3=A4ht CEO, TekLibre, LLC >>> _______________________________________________ >>> Cerowrt-devel mailing list >>> Cerowrt-devel@lists.bufferbloat.net >>> https://lists.bufferbloat.net/listinfo/cerowrt-devel >>=20 >=20 >=20 > --=20 > I tried to build a better future, a few times: > https://wayforward.archive.org/?site=3Dhttps%3A%2F%2Fwww.icei.org >=20 > Dave T=C3=A4ht CEO, TekLibre, LLC