From owner-freebsd-isp Fri May 5 19:48:17 2000 Delivered-To: freebsd-isp@freebsd.org Received: from PacHell.TelcoSucks.org (pachell.telcosucks.org [207.90.181.5]) by hub.freebsd.org (Postfix) with ESMTP id BF70537BE03 for ; Fri, 5 May 2000 19:48:14 -0700 (PDT) (envelope-from ulf@PacHell.TelcoSucks.org) Received: (from ulf@localhost) by PacHell.TelcoSucks.org (8.9.3/8.9.1) id TAA45250; Fri, 5 May 2000 19:47:57 -0700 (PDT) (envelope-from ulf) Date: Fri, 5 May 2000 19:47:57 -0700 From: Ulf Zimmermann To: Paul D Kruse Cc: freebsd-isp@FreeBSD.ORG Subject: Re: MRTG / Cisco 3810 Message-ID: <20000505194757.I20555@PacHell.TelcoSucks.org> Reply-To: ulf@Alameda.net References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: ; from paul@pcslink.com on Sat, May 06, 2000 at 07:18:11PM -0700 Organization: Alameda Networks, Inc. X-Operating-System: FreeBSD 3.4-STABLE Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sat, May 06, 2000 at 07:18:11PM -0700, Paul D Kruse wrote: > We have recently upgraded the IOS on our Cisco 3810 from 11.3 to 12.0. This > router handles our DSL connections. The reason we upgraded the IOS was > because we wanted to provide PPP access to our customers, in addition to the > Bridged access we already had. Well in the process, MRTG, which runs on one > of our Free BSD boxes, quit working for the subinterfaces on this router. > The upgrade of the IOS converted the Serial2.32 interface to ATM0.32. > Originally, we were monitoring / graphing down to the PVC level. Each time you reboot a Cisco, there is the possibility that the index numbers for SNMP change. Example: Your Cisco has: Interface name Index Fastethernet0/0 0 Serial1/0 1 Serial1/0.1 2 Serial1/0.2 3 Serial1/0.3 4 Serial1/0.4 5 Serial2/0 6 Serial2/0.1 7 Serial2/0.2 8 Serial2/0.3 9 Serial2/0.4 10 You now run cfgmaker and configure your mrtg and everything is fine. Now you add Serial1/0.5 (another subinterface), it will probably become index 11. But what happens when you reboot now ? The IOS will number the interfaces again. Serial1/0.5 will become Index 6, Serial 2/0 becomes 7, Serial 2/0.1 becomes 8, etc. > > I've used 'snmpwalk' to try to get the proper numbers to monitor the PVCs, > but I'm not sure I would fully know how to use these numbers anyway. So > far, Cisco's tech support has been no help at all. Hopefully one of you > guys can provide some insight. > > PDK > Paul D Kruse > paul@pcslink.com > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message -- Regards, Ulf. --------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-769-2936 Alameda Networks, Inc. | http://www.Alameda.net | Fax#: 510-521-5073 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message