From owner-freebsd-net Thu Aug 16 23:29:39 2001 Delivered-To: freebsd-net@freebsd.org Received: from elvis.mu.org (elvis.mu.org [216.33.66.196]) by hub.freebsd.org (Postfix) with ESMTP id 8CB6B37B405 for ; Thu, 16 Aug 2001 23:29:36 -0700 (PDT) (envelope-from bright@elvis.mu.org) Received: by elvis.mu.org (Postfix, from userid 1192) id 592FE81D07; Fri, 17 Aug 2001 01:29:26 -0500 (CDT) Date: Fri, 17 Aug 2001 01:29:26 -0500 From: Alfred Perlstein To: Alex Kapranoff Cc: freebsd-net@FreeBSD.ORG Subject: Re: What is 'checksum offload'? Message-ID: <20010817012926.O38066@elvis.mu.org> References: <20010816111147.A1328@kapran.bitmcnit.bryansk.su> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010816111147.A1328@kapran.bitmcnit.bryansk.su>; from kapr@acm.org on Thu, Aug 16, 2001 at 11:11:48AM +0400 Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org * Alex Kapranoff [010817 01:24] wrote: > Good day, > > I'm in the process of translation release notes and have trouble > understanding and thus interpreting the term 'checksum offload' which is > a feature of nge(4) and lge(4) drivers. Does it mean that the > controllers are able to compute TCP/IP checksums in hardware thus taking > off load from CPU? Don't hesitate to tell me I'm stupid and this has > nothing to do with TCP/IP :) Yes, that's the point of checksum offloading. > Oh, and what's a jumbogram? Large frames, larger than standard ethernet MTU, afaik they're 8 or 9k. -- -Alfred Perlstein [alfred@freebsd.org] Ok, who wrote this damn function called '??'? And why do my programs keep crashing in it? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message