ServerIron ADX Server Load Balancing Guide

Release 12.0.00

June 15, 2009

Binding Same Real Ports to Multiple VIP Ports

This feature provides the ability to bind same real ports to multiple VIP ports. This is useful when you want to bind more than one VIP to the same application service on real servers, and these real servers are listening on different ports.

NOTE: To bind twice to the same real port, you must configure an alias port.

NOTE: This command is backward-compatible with the real-port command.

To bind multiple ports to one real server port, follow these steps:

1.	Create a real server with two ports.

ServerIron(config)# server real rs1

ServerIron(config-rs-rs1)# port 81

ServerIron(config-rs-rs1)# port 8081 <- alias port

 

2.	Create a second real server with two ports.

ServerIron(config)# server real rs2

ServerIron(config-rs-rs2)# port 82

ServerIron(config-rs-rs2)# port 8082 <- alias port

 

3.	Create a virtual server.

ServerIronADX(config)# server virtual-name-or-ip vs1

 

4.	Configure an HTTP port on the virtual server.

ServerIronADX(config-vs-vs1)# port http

 

5.	Bind the the alias ports to the real servers on the virtual servers.

ServerIronADX(config-vs-vs1)# bind http rs1 81 rs2 82

 

6.	Create a second virtual server with an HTTP port.

ServerIronADX(config)# server virtual-name-or-ip vs2

ServerIronADX(config-vs-vs2)#port http

 

7.	Bind the the alias ports to the real servers on the virtual servers.

ServerIronADX(config-vs-vs2)# bind http rs1 8081 real-port 81 rs2 8082 real-port 82

 

Syntax: bind <virtual-port> <real-server-name> <alias-port> [real-port <real-port-num>]