From owner-freebsd-net Mon Sep 30 12:10:41 2002 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AF88837B401; Mon, 30 Sep 2002 12:10:40 -0700 (PDT) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id A9FC443E65; Mon, 30 Sep 2002 12:10:39 -0700 (PDT) (envelope-from robert@fledge.watson.org) Received: from fledge.watson.org (fledge.pr.watson.org [192.0.2.3]) by fledge.watson.org (8.12.4/8.12.4) with SMTP id g8UJABOo023382; Mon, 30 Sep 2002 15:10:11 -0400 (EDT) (envelope-from robert@fledge.watson.org) Date: Mon, 30 Sep 2002 15:10:10 -0400 (EDT) From: Robert Watson X-Sender: robert@fledge.watson.org To: Bruce M Simpson Cc: Marco Molteni , freebsd-mobile@freebsd.org, freebsd-net@freebsd.org Subject: Re: Fw: Link Triggers on Linux In-Reply-To: <20020930140230.GO26352@spc.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII 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 On Mon, 30 Sep 2002, Bruce M Simpson wrote: > Sounds similar to Win2k's ability to notify user-space processes of the > link going up/down on Ethernet interfaces. But that's nothing that can't > be achieved by polling the appropriate ifioctl. We have this capability already using kqueues, although I'd actually also like to see a routing socket event. Somewhere there are dhclient patches floating around to support kq interface link notifications. Note that not all of our supported ethernet interfaces support link state monitoring, they only have administrative up/down, so any application written to handle link state information needs to take that into account. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Network Associates Laboratories To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message