Cisco catalyst 6500 series Configuration Note page 100

Configuring Global Server Load Balancing
Figure 8-1
In this configuration illustration, the following guidelines apply to the configuration task and example:
CSM 1 does both GSLB and SLB, while CSM 2 and CSM 3 only do SLB.
•
CSM 1 has both a virtual server for SLB where the real servers in the server farm are the IP addresses
•
of the local servers and a virtual server for GSLB.
The DNS policy uses a primary server farm where one of the real servers is local and the other two
•
real servers are virtual servers configured on CSM 2 and CSM 3, respectively.
Probes should be added for both the remote locations and the local real and virtual server.
•
DNS requests sent to a CSM 1 management IP address (a CSM 1 VLAN address or alias IP) will
•
receive as a response one of the three real server IPs configured in the server farm GSLBFARM.
To configure GSLB, perform these tasks:
Command
Step 1
Router(config-slb-vserver)#
serverfarm serverfarm-name
Step 2
Router(config-module-csm)#
vserver virtserver-name
Step 3
Router(config-slb-vserver)#
virtual ip-address [ ip-mask ]
protocol port-number [service
ftp]
Step 4
Router(config-slb-vserver)#
inservice
Step 5
Router(config-module-csm)#
vserver virtserver-name dns
Catalyst 6500 Series Content Switching Module Configuration Note
8-10
Global Server Load Balancing Configuration
Purpose
Creates a server farm to associate with the virtual server.
Identifies a virtual server for SLB on CSM 1, and enters the
virtual server submode.
Configures the virtual server attributes.
Enables the virtual server for load balancing.
Identifies a virtual server for GSLB, and enters the virtual server
submode.
Chapter 8 Configuring Additional Features and Options
OL-4612-01