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SmartSwitch Router User Reference Manual 241
Chapter 17: Web Hosting Configuration Guide
Web Hosting with Multiple Virtual Groups and Multiple Destination Servers
In the following example, three different servers are used to provide different services for
a site.
The network shown above can be created with the following load-balance commands:
If no application verification options are specified, the SSR will do a simple TCP
handshake to check that the application is “up.” Some applications require specific
commands for proper closure of the connection. The following command shows an
example of how to send a specific string to close a connection on a server:
10.1.1.1
Router
Internet
Web requests
forwarded to
the server
www.quick.com
ftp.quick.com
User Queries:
www.quick.com
10.1.1.3
smtp.quick.com
10.1.1.2
ftp.quick.com
smtp.quick.com
Domain Name Virtual IP TCP Port
Real Server
IP
TCP Port
www.quick.com 207.135.89.16 80 10.1.1.1 80
ftp.quick..com 207.135.89.16 21 10.1.1.2 21
smtp.quick.com 207.135.89.16 25 10.1.1.3 25
load-balance create group-name quick-www virtual-ip 207.135.89.16 virtual-port 80
protocol tcp
load-balance create group-name quick-ftp virtual-ip 207.135.89.16 virtual-port 21
protocol tcp
load-balance create group-name quick-smtp virtual-ip 207.135.89.16 virtual-port
25 protocol tcp
load-balance add host-to-group 10.1.1.1 group-name quick-www port 80
load-balance add host-to-group 10.1.1.2 group-name quick-ftp port 21
load-balance add host-to-group 10.1.1.3 group-name quick-smtp port 25
load-balance set group-options quick-smtp acv-quit “quit”