The way I understood it when I researched it and subsequently set up gslb, there needed to be ServerIrons at each location. Requests are handled by the way DNS is handled.
If you're using a remote server to have one server closer to where some of your users will be, then when they get the DNS response, they're given the response closest to them. If you're doing it for redundancy and you don't want anyone to hit that site unless everything else is down, they're given the DNS of the primary site until none of those real servers are available, then they're given the DNS for the redundant site. Its smoke, mirrors and DNS. The ServerIrons actually have to have DNS behind them to see the responses and change them if necessary, or they have to provide the DNS for that (sub)domain themselves and they change it if necessary. They need to have control of the DNS in some way for glsb to work. Hard to grasp the first time you hear it, but the ServerIrons can do DNS. Cheers, Em -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Bellears Sent: Wednesday, 23 June 2004 4:08 PM To: [email protected] Subject: [f-nsp] ServerIronXL 16 or 24 port questions.. We are looking at purchasing one of the above devices, and primarily want to use it for Global Load Balancing ("real" servers will be located in geographic disperse locations.) How is the above achieved on the ServerIron - Eg. For load-balancing of a webserver: If we have one "real" server directly connected to the ServerIron, and another "real" server co-located with provider x in another country - How are requests handled? - All requests for the webserver are initially handled by the ServerIron (Virtual Server IP), requests are forwarded to Real IP (Server directly connected), and also to remote server (Does traffic destined for this server go back out the Server Irons default GW?) My other question is regarding the ServerIron switch ports - Must each backend "real" server have a dedicated port, or can I connect a layer 2 switch to one of the ServerIron ports to give me greater capacity? Thanks in advance. Regards, MB _______________________________________________ foundry-nsp mailing list [email protected] http://puck.nether.net/mailman/listinfo/foundry-nsp
