Configuring RA Message Advertisement

If no limit is set on RA message advertisement, a device periodically advertises RA messages, which contain the prefix option and flag bits, to announce the existence of itself.

Procedure

Access the system view.
```
system-view
```

Access the interface view.

interface interface-type interface-number

Enable the interface to advertise RA messages.
```
undo ipv6 nd ra halt
```

Follow-up Procedure

Run the display ipv6 interface command to view the interval at which RA messages are advertised.

<sysname> display ipv6 interface GigabitEthernet 0/0/1
GigabitEthernet 0/0/1 current state : UP                                                                                             
IPv6 protocol current state : UP                                                                                                    
IPv6 is enabled, link-local address is FE80::2A6E:D4FF:FE48:3EF                                                                     
  Global unicast address(es):                                                                                                       
    3000::1, subnet is 3000::/64                                                                                                    
  Joined group address(es):                                                                                                         
    FF02::1:FF00:1                                                                                                                  
    FF02::2                                                                                                                         
    FF02::1                                                                                                                         
    FF02::1:FF48:3EF                                                                                                                
  MTU is 1500 bytes                                                                                                                 
  ND DAD is enabled, number of DAD attempts: 1                                                                                      
  ND reachable time is 30000 milliseconds                                                                                           
  ND retransmit interval is 1000 milliseconds                                                                                       
  ND stale time is 1200 seconds                                                                                                     
  ND advertised reachable time is 0 milliseconds                                                                                    
  ND advertised retransmit interval is 0 milliseconds                                                                               
  ND router advertisement max interval 600 seconds, min interval 200 seconds                                                        
  ND router advertisements live for 1800 seconds                                                                                    
  ND router advertisements hop-limit 64                                                                                             
  ND default router preference medium                                                                                               
  Hosts use stateless autoconfig for addresses