H Commands

This chapter describes the Cisco NX-OS Hot Standby Router Protocol (HSRP) commands that begin with H.

hsrp

To enter Hot Standby Router Protocol (HSRP) configuration mode and create an HSRP group, use the hsrp command. To disable HSRP, use the no form of this command.

hsrp group-number ipv4

no hsrp group-number ipv4

Syntax Description

group-number

Number of HSRP groups that can be configured on a Gigabit Ethernet port, including the main interfaces and subinterfaces. The range is from 1 to 255. The default value is 0.

ipv4

(Optional) Sets the HSRP group for IPv4.


Command Default

Disabled

Command Modes

Command HistoryInterface configuration mode

Release
Modification

5.0(3)N1(1)

This command was introduced.


Usage Guidelines

You must globally enable HSRP before you can configure any HSRP options or create an HSRP group.

Examples

This example shows how to create and activate an HSRP group: 

switch# configure terminal

switch(config)# interface ethernet 0

switch(config-if)# no switchport

switch(config-if)# ip address 172.16.6.5 255.255.255.0

switch(config-if)# hsrp 1

switch(config-if-hsrp)#

 
   
 
    
   
 This example shows how to create and activate an HSRP group for IPv6: 
 
    
   
 
    
switch# configure terminal

 
   
 
    
   
 
    
switch(config)# interface ethernet 1

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ipv6 address 172.16.6.5 255.255.255.0

 
   
 
    
   
 
    
switch(config-if)# hsrp 1

 
   
 
    
   
 
    
switch(config-if-hsrp)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 feature hsrp 
 		 
       
 Enables HSRP configuration. 
 		 
      
 
      
 
       
 ip address 
 		 
       
 Creates a virtual IP address for the HSRP group. The IP address must be in the same subnet as the interface IP address. 
 		 
      
 
      
 
       
 show hsrp 
 		 
       
 Displays HSRP information. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 
 
     
    
    
   
 hsrp delay 
 
    
   
 To delay Hot Standbu Router Protocol (HSRP) initialization after a reload or after an interface comes up, use the hsrp delay command. To disable this function, use the no form of this command. 
 
    
   
hsrp delay {minimum min-delay | reload reload-delay} 
 
    
   
no delay {minimum min-delay | reload reload-delay} 
 
    
   
 Syntax Description
 
   
 
    
 
      
      
      
 
       
 minimum min-delay 
 		 
       
 Specifies the minimum time (in seconds) to delay HSRP group initialization after an interface comes up. This period applies to all subsequent interface events. The range is from 1 to 10,000. The default is 0 seconds. 
 		 
      
 
      
 
       
 reload reload-delay 
 		 
       
 Specifies the time period to delay HSRP group initialization after the router has reloaded. This period applies only to the first interface-up event after the router has reloaded. The range is from 1 to 10,000. The default is 0 seconds. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Command Default 
 
    
   
 The HSRP delay default is 0 seconds. 
 
    
   
 Command Modes 
 
    
   
 Command HistoryInterface configuration mode
 
   
 
    
 
      
      
      
 
        
        

          Release 
        
 		 
        
        

          Modification 
        
 		 
      
 
      
 
       
 5.0(3)N1(1) 
 		 
       
 This command was introduced. 
 		 
      
 
      
    
 
   
 
   
 
   
 
 
    
   
 Usage Guidelines 
 
    
   
 Use the hsrp delay command to delay HSRP initialization either after a reload or after an interface comes up. This configuration allows the interface and router to stabilize after the interface comes up and helps prevent HSRP state flapping. 
 
    
   
 Examples 
 
    
   
 This example shows how to configure a minimum delay of 3 seconds and a group initialization delay of 10 seconds: 
 
    
   
 
    
switch# configure terminal

 
   
 
    
   
 
    
switch(config)# interface ethernet 1/5

 
   
 
    
   
 
    
switch(config-if)# no switchport

 
   
 
    
   
 
    
switch(config-if)# ip address 172.16.6.5 255.255.255.0

 
   
 
    
   
 
    
switch(config-if)# hsrp 1

 
   
 
    
   
 
    
switch(config-if-hsrp)# hsrp delay minimum 3 reload 10

 
   
 
    
   
 
    
switch(config-if-hsrp)#

 
   
 
    
   
 
    
 
   
 
    
   
 Related Commands
 
   
 
    
 
      
      
      
 
        
        

          Command 
        
 		 
        
        

          Description 
        
 		 
      
 
      
 
       
 feature hsrp 
 		 
       
 Enables the HSRP configuration. 
 		 
      
 
      
 
       
 hsrp 
 		 
       
 Creates HSRP groups. 
 		 
      
 
      
 
       
 show hsrp delay 
 		 
       
 Displays the HSRP delay information.