Cisco Systems 78-11741-02 manual Customizing Group Attributes, IPC-147

Configuring Server Load Balancing

IOS SLB Configuration Task List

Step 7 Customize group attributes. See the “Customizing Group Attributes” section earlier in this chapter.

Step 8 Verify the IOS SLB HSRP configuration. See the “Verifying the IOS SLB Stateless Backup Configuration” section earlier in this chapter.

A sample stateless backup configuration is shown in the “IOS SLB Stateless Backup Configuration Example” section.

Enabling HSRP

To enable HSRP on an IOS SLB interface, enable the protocol, then customize it for the interface. Use the following command in interface configuration mode:

Command	Purpose
Router(config-if)# standby [group-number] ip [ip-address	Enables HSRP.
[secondary]]

Customizing Group Attributes

To customize Hot Standby group attributes, use the following commands in interface configuration mode as needed:

Command	Purpose
Router(config-if)# standby [group-number] authentication	Selects an authentication string to be carried in all
string	HSRP messages.
Router(config-if)# standby [group-number] name group-name	Specifies an HSRP group name with which to
	associate an IOS SLB interface.
Router(config-if)# standby [group-number] preempt	Specifies that if the local router has priority over
	the current active router, the local router should
	attempt to take its place as the active router.
Router(config-if)# standby [group-number] priority priority	Sets the Hot Standby priority used to choose the
	active router.
Router(config-if)# standby [group-number] timers hellotime	Configures the time between hello packets and the
holdtime	hold time before other routers declare the active
	router to be down.
Router(config-if)#standby [group-number]track type-number	Configures the interface to track other interfaces,
[interface-priority]	so that if one of the other interfaces goes down the
	Hot Standby priority for the device is lowered.

Verifying the IOS SLB Stateless Backup Configuration

To verify that stateless backup has been configured and is operating correctly, use the following show ip slb vservers EXEC commands to display information about the IOS SLB virtual server status:

Router# show ip slb vservers

slb vservers prot virtualstate conns

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Cisco IOS IP Configuration Guide

IPC-147