From owner-freebsd-net Mon Jun 8 01:17:50 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id BAA20037 for freebsd-net-outgoing; Mon, 8 Jun 1998 01:17:50 -0700 (PDT) (envelope-from owner-freebsd-net@FreeBSD.ORG) Received: from labinfo.iet.unipi.it (labinfo.iet.unipi.it [131.114.9.5]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id BAA19966 for ; Mon, 8 Jun 1998 01:17:35 -0700 (PDT) (envelope-from luigi@labinfo.iet.unipi.it) Received: from localhost (luigi@localhost) by labinfo.iet.unipi.it (8.6.5/8.6.5) id IAA15417; Mon, 8 Jun 1998 08:35:08 +0200 From: Luigi Rizzo Message-Id: <199806080635.IAA15417@labinfo.iet.unipi.it> Subject: Re: Documenting sysctls (was: Re: kernfs/procfs questions...) To: easmith@beatrice.rutgers.edu (Allen Smith) Date: Mon, 8 Jun 1998 08:35:08 +0200 (MET DST) Cc: wollman@khavrinen.lcs.mit.edu, net@FreeBSD.ORG In-Reply-To: <9806080109.ZM28427@beatrice.rutgers.edu> from "Allen Smith" at Jun 8, 98 01:08:47 am X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org as far as i can tell all your previous comments are right but... > > * nor i am sure how well this works with ethernet _and_ IP multicast and > > broadcast. Things like bootp might not work anymore across your > > gateway. > > Ethernet broadcasts are supposed to be stopped by bridges, so I no,this is not true. ethernet broadcasts and *must* be passed by L2 devices (bridges/switches). Same for multicasts, except that you can have some smarts in the bridge and snoop the control traffic (e.g. IGMP) to do selective forwarding. > > it's more a bus than a CPU problem. > > I'll be going to PCI cards if we move to 100-Base-TX. you need it even for 10Mbit, the ISA bus bandwidth is barely enough to support one loaded ethernet. cheers luigi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message