Hi, No, the terminal servers is on another net, but since they are the only ones with problems I was guessing that it has something to do with NLB on both systems.
We run with multicast/no IGMP, and with a hub on front of the cluster to prevent problems with switch flooding. And single affinity The equipment is connected to the internet via Checkpoint firewall with port rules etc. (We haven't got any control of this other than wich ports to be open etc.) I'm doing some more checking after the upgrade to 7.x. Anyways it's smart to switch to a HW based solution for loadbalancing. It's better than Windows NLB clustering on most aspects? Helge -----Original Message----- From: Jochem van Dieten [mailto:[EMAIL PROTECTED] Sent: 31. januar 2007 09:52 To: CF-Talk Subject: Re: What hw to use for loadbalancing WebSite CFtalk wrote: > The problem is not always there, but happens especially with one > customer using clustered terminal servers and Internet Explorer. > > It seems that they are always connected to one of the cluster nodes Are the terminal servers in the same subnet as your cluster? If so, what is the ARP timeout on the system? If not, what is the ARP timeout on the upstream router of your cluster? Do you have port security enabled on your network equipment? Are you using multicast and / or IGMP? How is multicast configured on your switch / router? Do you have single affinity set? > they experience drops regularly, also when all jrun/cf instances is up > and running. I would look into the combination of NLB with your network equipment. ISTM this is a problem where the network directs the traffic to one server, where NLB tries to direct the traffic to another server. > We're shortly going to upgrade to 7.x (running 6.1 right now), but I > believe that the problem is with NLB clustering - maybe when the other > end is also NLB. > > The plan is to switch to a HW based solution for this reason and also > since it obviously would be a better and more stable/powerful solution. This all sounds very vague to me. Wouldn't it be better to thoroughly investigate the issue before investing in new hardware? Or at least get something from a vendor on a try before you buy basis. Jochem ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Upgrade to Adobe ColdFusion MX7 Experience Flex 2 & MX7 integration & create powerful cross-platform RIAs http:http://ad.doubleclick.net/clk;56760587;14748456;a?http://www.adobe.com/products/coldfusion/flex2/?sdid=LVNU Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:268178 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
