From owner-freebsd-questions Mon May 13 12:55:12 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id MAA16625 for questions-outgoing; Mon, 13 May 1996 12:55:12 -0700 (PDT) Received: from sasami.jurai.net (sasami.jurai.net [205.218.122.51]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id MAA16616 for ; Mon, 13 May 1996 12:55:10 -0700 (PDT) Received: from localhost (winter@localhost) by sasami.jurai.net (8.7.4/8.7.3) with SMTP id OAA13880; Mon, 13 May 1996 14:54:44 -0500 (CDT) Date: Mon, 13 May 1996 14:54:43 -0500 (CDT) From: "Matthew N. Dodd" X-Sender: winter@sasami To: Valentin Lisjak cc: questions@freebsd.org Subject: Re: alias IP_number In-Reply-To: <199605131205.MAA15987@spectrum.nil.si> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Mon, 13 May 1996, Valentin Lisjak wrote: > I'd like to know how many alias IP numbers, could be applied to the > ethernet interface. I'm currently running 26 aliases. If it's possible, > explain me, how are theese aliases stored in kernel: list, tree, ... ? > I'm very interested in this information, because with a lot of hits > to many different aliases, performance degradation could be quite a > big problem. I wrote a script that aliased several thousand IPs to various interfaces. I didn't see any problem. (more mbuf clusters were allocated and used) To alias more than a couple hundred takes a good bit of time, so consider that to be the factor in how many you put on a machine. I don't want to wait 20 minutes while the box adds aliases. :) I guess the correct answer to your question is "enough". Have a good one. | Matthew N. Dodd | winter@jurai.net | http://www.jurai.net/~winter | | Technical Manager | mdodd@intersurf.net | http://www.intersurf.net | | InterSurf Online | "Welcome to the net Sir, would you like a handbasket?"|