Configuration guidelines, Defining, The real servers and real application ports – Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) User Manual
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Brocade Virtual ADX Server Load Balancing Guide
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Configuring basic SLB
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Configuration guidelines
The following configuration guidelines should be observed when configuring SLB on a switch:
•
Each virtual server name and IP address must be unique.
•
Each virtual server can have multiple TCP or UDP ports assigned.
•
Each real server name and IP address must be unique.
•
Each real server can have multiple TCP or UDP ports assigned.
•
Each real server TCP or UDP port can be bound to one or more virtual TCP or UDP ports.
NOTE
If you need to map a real server port to multiple VIP ports, you can use the multiple port
binding feature. Refer to
•
One virtual TCP or UDP port can be bound to one or more real TCP or UDP ports.
NOTE
If you need to map virtual port to multiple real server ports, you can use the many-to-one TCP
or UDP port binding feature. Refer to
•
The default load-balancing predictor is Round Robin.
•
Binding must be done to establish a relationship between virtual and real servers.
Defining the real servers and real application ports
Identify your application servers as real servers. Define a real server using its name and IP
address. Add your application ports under these real servers.
NOTE
When you add a port other than port 80 to a real server, the port number l4-check-only command is
automatically applied to the configuration. You cannot remove this command from the non-HTTP
ports.
Virtual ADX(config)#server real Web1 10.95.55.21
Virtual ADX(config-rs-Web1)#port http
Virtual ADX(config-rs-Web1)#port dns
Virtual ADX(config-rs-Web1)#exit
Virtual ADX(config)#server real Web2 10.95.55.22
Virtual ADX(config-rs-Web2)#port http
Virtual ADX(config-rs-Web2)#port dns
TABLE 6
Real and virtual server assignments
Domain name
Virtual IP
Port
Real IP
Port
www.example7.com
10.95.55.1
80
10.95.55.21 (Web1)
10.95.55.22 (Web2)
10.95.55.23 (Web3)
10.95.55.24 (Web4)
80
80
80
80