From owner-freebsd-isp Fri Jul 25 13:13:54 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id NAA22178 for isp-outgoing; Fri, 25 Jul 1997 13:13:54 -0700 (PDT) Received: from DNS.Lamb.net (root@DNS.Lamb.net [207.90.181.1]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id NAA22172 for ; Fri, 25 Jul 1997 13:13:52 -0700 (PDT) Received: from Gatekeeper.Alameda.net (ulf@gatekeeper.Alameda.net [207.90.181.2]) by DNS.Lamb.net (8.8.5/8.8.5) with ESMTP id NAA28156; Fri, 25 Jul 1997 13:14:01 -0700 (PDT) Received: (from ulf@localhost) by Gatekeeper.Alameda.net (8.8.5/8.7.6) id NAA29118; Fri, 25 Jul 1997 13:13:45 -0700 (PDT) From: Ulf Zimmermann Message-Id: <199707252013.NAA29118@Gatekeeper.Alameda.net> Subject: Re: FreeBSD Router In-Reply-To: from Stefan Molnar at "Jul 25, 97 11:27:03 am" To: stefan@exis.net (Stefan Molnar) Date: Fri, 25 Jul 1997 13:13:45 -0700 (PDT) Cc: ulf@Alameda.net, fyeung@fyeung8.netific.com, steve@visint.co.uk, rls@mail.id.net, freebsd-isp@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL31 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-isp@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > > > If 32MB is not enough to hold a full routing table, I wonder - > > > how much memory do most routers e.g. cisco 2501, cisco 7500, Ascend pipeline > > > etc have ? Are those routes ever aged ? > > > > > > > > > Best regards. > > > > > > Francis > > > > > > > A 2501 doesn't hold a full routing table, the maximum memory is 16MB, > > of which 2MB are used for shared buffers. A Cisco 7500 with RSP2 can have > > up to 128MB memory, with RSP4 it can have 256MB. > > Where I use to work we put in 64MB in a 7010 to get a full BGP map. > > Stefan > > Yes, 64MB might be enough, it depends on how many BGP feeds you have. Also you need to consider that a Cisco has no VM system, no swap. -- Ulf. -------------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-769-2936 Alameda Networks, Inc. | http://www.Alameda.net | Fax#: 510-521-5073