From owner-freebsd-stable Thu Nov 4 13:24:37 1999 Delivered-To: freebsd-stable@freebsd.org Received: from enst.enst.fr (enst.enst.fr [137.194.2.16]) by hub.freebsd.org (Postfix) with ESMTP id 971331513D for ; Thu, 4 Nov 1999 13:24:28 -0800 (PST) (envelope-from beyssac@enst.fr) Received: from bofh.enst.fr (bofh-2.enst.fr [137.194.2.37]) by enst.enst.fr (8.9.1a/8.9.1) with ESMTP id WAA08244; Thu, 4 Nov 1999 22:23:48 +0100 (MET) Received: by bofh.enst.fr (Postfix, from userid 12426) id 52B77D246; Thu, 4 Nov 1999 22:23:48 +0100 (CET) Message-ID: <19991104222348.A1593@enst.fr> Date: Thu, 4 Nov 1999 22:23:48 +0100 From: Pierre Beyssac To: Marcin Cieslak , freebsd-stable@FreeBSD.ORG Subject: Re: VLAN support in -stable? References: <99110417075801.77033@310.priebe.alt.na> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i In-Reply-To: ; from Marcin Cieslak on Thu, Nov 04, 1999 at 07:33:27PM +0100 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Nov 04, 1999 at 07:33:27PM +0100, Marcin Cieslak wrote: > by a reputable hardware vendor and the guys noted few problems with > IEEE 802.1p and Q standards. They require that _hardware_ > should accept a longer packets, because 802.1p/Q add extra > 4 bytes to the ethernet frame. Therefore, all Ethernet > equipment on a network using VLAN must accept longer packets, That sounds reasonnable, since it seems to me that VLAN links are typically to be used on backbone/trunk links, i.e. links where you only have switches or possibly a few big servers (i.e. fast, recent hardware which is more likely to be VLAN-compliant). Same principle as ATM's LAN emulation with (classical) ethernet devices at the edges, except that you replace the expensive ATM core with relatively cheaper VLAN-compliant ethernet equipment. -- Pierre Beyssac pb@enst.fr To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message