From owner-freebsd-net Tue Jun 20 21:37:44 2000 Delivered-To: freebsd-net@freebsd.org Received: from info.iet.unipi.it (info.iet.unipi.it [131.114.9.184]) by hub.freebsd.org (Postfix) with ESMTP id 8914337B935 for ; Tue, 20 Jun 2000 21:37:39 -0700 (PDT) (envelope-from luigi@info.iet.unipi.it) Received: (from luigi@localhost) by info.iet.unipi.it (8.9.3/8.9.3) id GAA04059; Wed, 21 Jun 2000 06:38:45 +0200 (CEST) (envelope-from luigi) From: Luigi Rizzo Message-Id: <200006210438.GAA04059@info.iet.unipi.it> Subject: Re: bridge + VLAN + netgraph In-Reply-To: <20000620233346.B1128@waterspout.com> from "C. Stephen Gunn" at "Jun 20, 2000 11:33:46 pm" To: "C. Stephen Gunn" Date: Wed, 21 Jun 2000 06:38:45 +0200 (CEST) Cc: Julian Elischer , Tarik Alj , archie@whistle.com, gregoire@cholla.inrs-telecom.uquebec.ca, "Vitaly V. Belekhov" , net@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL61 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > - Since VLANs shove another 4-byte field in the Ethernet Frame, > we bump the MTU by 4 bytes. Some cards/drivers reject frames actually we should bump up not the MTU, but the max acceptable frame size in the device driver. I think most interfaces will accept the change just fine, it's just really boring to look after all interfaces and fix the initialization of the card. > We could then modify ether_input() to take the full mbuf, including > the headers (like NetBSD). Drivers that want/need to optimize I already suggested that, but no luck :( cheers luigi -----------------------------------+------------------------------------- Luigi RIZZO, luigi@iet.unipi.it . Dip. di Ing. dell'Informazione http://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy) Mobile +39-347-0373137 -----------------------------------+------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message