Date: Wed, 5 Apr 2000 08:29:45 -0400 (EDT) From: Dev <dev@inetu.net> To: freebsd-isp@freebsd.org Subject: flat network Message-ID: <Pine.BSF.4.10.10004050824500.22940-100000@norad.inetu.net>
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I know this may be a bit more of a network problem, but in my experience, freebsd people have the best skills here to :) We have a server farm of about 200 servers. We have a single router which connects to our bay switches (about 10 switches, all uplink into 1 100 mbps switch). The first 140+ servers were added with random ip addresses assigned to random servers (a block of 20 here, a block of 40 ip's there). Since then, we have started assigned logical blocks (/28, /29, etc.) to servers and routing the block directly to the server's main ip address (to cut down on required arp entries in router). We have a problem where new servers, that don't receive much traffic, tend to drop off the network. After you ping them for about 30 seconds plus they will return. If you constantly ping them, they will not fall off the network (0% packet loss with over 64,000 packets sent during the night). I was wondering if anyone had experienced similiar problems. I think either our router or switch is expiring the arp entry and taking time to re-learn it (due to the large size of our flat network). But how does one actually tell if this is the problem. Any assistance would be greatly apprecaited. Thanks, Dev To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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