From owner-freebsd-isp Tue Jul 17 7:52:43 2001 Delivered-To: freebsd-isp@freebsd.org Received: from nt-mail.inetu.net (nt-mail.inetu.net [209.235.240.9]) by hub.freebsd.org (Postfix) with ESMTP id 909A837B401 for ; Tue, 17 Jul 2001 07:52:38 -0700 (PDT) (envelope-from dev@wserv8.inetu.net) Received: from wserv8.inetu.net (wserv8.inetu.net [209.235.192.124]) by nt-mail.inetu.net (8.9.3/8.9.3) with ESMTP id LAA63376; Tue, 17 Jul 2001 11:02:43 -0400 (EDT) Date: Tue, 17 Jul 2001 10:59:37 -0400 (EDT) From: "dev.org" To: Eric Walters Cc: freebsd-isp@FreeBSD.ORG Subject: RE: HELP NEEDED. :) ARP problems - ARP incomplete showing up on our network In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I will find out about upgrades, but I do not think any have been done. I think we use a cross-over cable, but I will check on that as well. Our cat is a 6509. On Tue, 17 Jul 2001, Eric Walters wrote: > Any recent IOS upgrades on the routers or switches? I would begin by making > sure the MAC address shows up in on the proper port on the switch it is > plugged into. Once that is verified make sure the uplink switch shows that > MAC address on the uplink port. Is the uplink port a true uplink or is it a > cross-over? If am pretty sure the problem will end up being on the switch > end and not the router. What is your CAT, 4000,5000 etc...? > > -----Original Message----- > From: dev.org [mailto:dev@wserv8.inetu.net] > Sent: Tuesday, July 17, 2001 9:15 AM > To: Eric Walters > Cc: freebsd-isp@FreeBSD.ORG > Subject: RE: HELP NEEDED. :) ARP problems - ARP incomplete showing up on > our network > > > Dear Eric, > > Thank you. > > We have Bay303 and 310's where our servers are connected. > > These switches uplink to our main Bay 350 which uplinks to our CAT where > our routers are connected. > > We do use crossover cables. This problem is not limited to a single > switch, but accross both 303 and 310 switches. > > Most of this stuff has been working fine for quite some time. > > Thanks so much. :) > > -Dev > > On Tue, 17 Jul 2001, Eric Walters wrote: > > > I have seen this problem on Cisco switches in the past. Do you have any > > hubs plugged into the switches or have them cascaded with cross-over > cables > > or anything? Have you checked the MAC Address table on the switches to > make > > sure the entries are still there? I would suspect the switches first. > Have > > you done any router or switch code upgrades recently? > > > > > > > > -----Original Message----- > > From: owner-freebsd-isp@FreeBSD.ORG > > [mailto:owner-freebsd-isp@FreeBSD.ORG]On Behalf Of Dev > > Sent: Tuesday, July 17, 2001 8:08 AM > > To: freebsd-isp@freebsd.org > > Subject: HELP NEEDED. :) ARP problems - ARP incomplete showing up on our > > network > > > > > > > > We have been having a problem for the last 24-36 hours on our network. > > > > We have about 350 servers (50% FreeBSD, 50% NT/2000 and a few Linux) > > > > Servers have started to be inaccessible through our router (and > > sometimes > > through other servers). > > > > The ARP table in our router will show an INCOMPLETE next to the Arp > > entry > > which is having trouble. > > > > These problems surface about every 30 minutes and servers will go down > > about every 4 hours. > > > > This problem seems to affect ONLY FreeBSD servers (and 2 Cobalt/Linux > > servers). In total, about 20-30 servers. > > > > Does anyone have any ideas on what we can check? While our network is > > largely flat, we do route blocks of addresses directly to servers, our > > arp > > table in our router is fairly small (about 500 entries). > > > > Any help would be greatly appreciated. We have tried a lot, but cannot > > figure out what is causing the problem. We did not have this problem > > before, and many of the servers affected have been running for 1-2 years > > > > without any problems. > > > > We use 3COM and Intel NIC's, Nortel switches (303, 310) and a 7206VXR > > routers. > > > > Thanks. > > -Dev > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-isp" in the body of the message > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-isp" in the body of the message > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message