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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Hosting Failover Question
Ideally, I wouldn't find any kind of "session" to time out. Almost everyone is fine with short outages (few seconds) as long as their apps don't time out. While 5 seconds is great, I think you'll have a hard time getting there. You'll have to exchange tons of "hello" type packets which means you're flooding a lot of traffic. You can control it at ports, but it's still a pain. At 6/6/01, you wrote: I am interested what I should design to. -----Original Message----- From: Paul Froutan [mailto:[email protected]] Sent: Wednesday, June 06, 2001 1:23 PM To: [email protected] Edu (E-mail) Subject: Re: Hosting Failover Question What do you mean by "reasonable"? Do you mean what you can expect right now at a hoster, or what you should aim for when designing a system? At 6/6/01, James DeMong wrote: >I am looking for a Rule of Thumb on failover for hosting, mostly >tcp(webserver), some udp (audio/video streaming) stuff. >My thought is that 5 seconds to failover when a network >element(switch/router/load balancer/FW) fails is reasonable. > >How many seconds is reasonable for fail over in such a situation? > >Thanks in advance. >__ >James DeMong >Network Design Specialist >TELUS Advanced Communications >Phone: (403) 503-3718 >Email: [email protected] ---------------------------------------------------------------------- Paul Froutan Email: [email protected] Rackspace Managed Hosting <http://www.rackspace.com>
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