Hi friends, there ae a lot of load-balancer outside. All of them have probelems in some listed points below: - graceful dead (can I shutdown a server without distrubing my users?) - amount of concurrent sessions - is the balancer itself redundant - when redundant : failover time - are there sticky ports (if there is a http-connection and additional sound, will both be forwarded to the same server ?) - cookies - https (ssl traffic) - throughput
of course, as you can see I'm an enterasys employee and we have some loadbalancers. And of course, nothing is perfect! something I would keep in mind is always a clean design with powerful options for taking some traces. If you do not know the way your packets are going (or balanced) it is difficult to find those which are lost ... -----Original Message----- From: Benjamin Lee [mailto:[EMAIL PROTECTED] Sent: Thursday, November 09, 2000 2:22 AM To: Ryu, Cheol Cc: Steve Gonczi; [EMAIL PROTECTED]; [email protected] Subject: Re: Data Piping On Thu, Nov 09, 2000 at 10:15:43AM +0900, Ryu, Cheol wrote: > Let me explain one apllication; > Resonate(www.resonate.com) has a patent on delayed resource binding, according to > the URL which the client requests they select a web server. But if the requests are in one > persistent connection, they probably need switch to another server according to the URL > binding rule. They can disconnect the original connection and can establish a new connection > internally, but they can also maintain multiple connections. If you keep TCP end points > (IP address and Port Number) and TCP sequence number, you can demultiplex or translate. > > Basically, this is one of NAT techniques. Hello, Now this *is* an interesting motivation. Ben. -- B. http://makelinux.org/ "Always real." http://realthought.net/ __________________________________________________________________________ For my birthday I got a humidifier and a de-humidifier... I put them in the same room and let them fight it out. -- Steven Wright -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
