From owner-freebsd-net@freebsd.org Mon Nov 6 19:56:58 2017 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B6996E66977 for ; Mon, 6 Nov 2017 19:56:58 +0000 (UTC) (envelope-from sbruno@freebsd.org) Received: from mail.ignoranthack.me (ignoranthack.me [199.102.79.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 96BDD813E4 for ; Mon, 6 Nov 2017 19:56:58 +0000 (UTC) (envelope-from sbruno@freebsd.org) Received: from [192.168.0.6] (97-123-7-109.albq.qwest.net [97.123.7.109]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sbruno@ignoranthack.me) by mail.ignoranthack.me (Postfix) with ESMTPSA id 9A23B192893; Mon, 6 Nov 2017 19:56:50 +0000 (UTC) Subject: Re: OCD window scaling behavior on local network. To: Zaphod Beeblebrox , FreeBSD Net References: From: Sean Bruno Message-ID: <880b0188-507d-85a7-4289-378d9c41c6ec@freebsd.org> Date: Mon, 6 Nov 2017 12:56:45 -0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="BsiOPfGlB7bLnJ3iUnk9KdTxtEVQpBBjD" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Nov 2017 19:56:58 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --BsiOPfGlB7bLnJ3iUnk9KdTxtEVQpBBjD Content-Type: multipart/mixed; boundary="dB7r3xltdIiJNDQ4D5cOINtuAfTdLihjp"; protected-headers="v1" From: Sean Bruno To: Zaphod Beeblebrox , FreeBSD Net Message-ID: <880b0188-507d-85a7-4289-378d9c41c6ec@freebsd.org> Subject: Re: OCD window scaling behavior on local network. References: In-Reply-To: --dB7r3xltdIiJNDQ4D5cOINtuAfTdLihjp Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 05/29/17 00:50, Zaphod Beeblebrox wrote: > so... I have some really OCD window scaling behavior on a GigE local > network. The protocol is BGP, this is one session recorded. Nearly ev= ery > payload packet is answered by both an 'ACK' and a 2nd window scaling > packet. I have examined the packet counters: no errors reported by the= box > or the managed switch. Also, TCP-MD5 is not in use, if that matters. >=20 > [image: Inline image 1] > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >=20 It looks like the attachment was stripped by the mailing list. sean --dB7r3xltdIiJNDQ4D5cOINtuAfTdLihjp-- --BsiOPfGlB7bLnJ3iUnk9KdTxtEVQpBBjD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEE6MTp+IA1BOHj9Lo0veT1/om1/LYFAloAvoJfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEU4 QzRFOUY4ODAzNTA0RTFFM0Y0QkEzNEJERTRGNUZFODlCNUZDQjYACgkQveT1/om1 /Lb5YQf+LnZhK6oeuLfeTteJUZyps0P3WEYSZiz3roUAc7yaG+2ld8ISnmknalaZ Q2xRln6wz44dlRUVqJXeJO8H7ILACo2vJU0ad3DteiCUbG9D1a4qgLJIeQ7O4FRc R6ecJlHVDad1cd7BRa5N2ucloeP9+UL2/V4c1T0jcw3gca2OQWnuPHKdOuSK+rwv yN53cC6qGjikfDM9+6vVphjXfBiPmEs060fKqIEKcNlcj9Wvg15RCSajmnv3+ZJp C/dorT5TGYXo6qyKfMLb35gHN8wQOCHDtAEnwe9OEcCmldAYUsvu6TL6Ztt2NFsv awj3KR9bjyAcXeLSWrHgqmBsoWG7uQ== =M1Da -----END PGP SIGNATURE----- --BsiOPfGlB7bLnJ3iUnk9KdTxtEVQpBBjD--