Configuring Other Information to Be Advertised

Configure other information to be advertised, including the hop limit, life duration of RA messages, times to send DAD messages, interval for re-sending NS messages, NUD reachable time, and MTU of the interface.

Procedure

Access the system view.
```
system-view
```
Configure the ND hop limit.
```
ipv6 nd hop-limit limit
```
The value of limit ranges from 1 to 255. By default, it is 64.

Return to the system view.

interface interface-type interface-number

Configure the ND RA hot limit.
```
ipv6 nd ra hop-limit limit
```
The value of limit ranges from 0 to 255. By default, it is 64.
- If the ipv6 nd ra hop-limit command has been run on an interface, the hop limit for an RA message uses the value configured on the interface.
- If the ipv6 nd ra hop-limit command has not been run on an interface, the hop limit for an RA message uses the value configured globally, that is, the value configured in the ipv6 nd hop-limit command.
Run:
```
ipv6 nd ra router-lifetime ra-lifetime
```
The life duration of RA messages is configured.
- When the ipv6 nd ra command is run to set the interval for advertising RA messages, the interval must be less than or equal to the life duration.
- By default, the maximum interval is 600 seconds, and the minimum interval is 200 seconds.
- By default, the life duration of RA messages is 1800 seconds. If the prefix is configured, the duration is still 1800 seconds.
Run:
```
ipv6 nd dad attempts value
```
Times to send DAD messages are configured.
Run:
```
ipv6 nd ns retrans-timer interval
```
The interval for re-sending NS messages is set.

By default, NS re-transmitting time interval is 1000 ms.
Run:
```
ipv6 nd nud reachable-time value
```
The NUD reachable time is set.

By default, NUD value is 30000 ms.
Run:
```
ipv6 mtu mtu
```
MTU of the interface is configured.
Run:
```
ipv6 nd neighbor-limit
```
The maximum number of dynamic neighbor entries that can be learned by a specified interface is configured.

You can set a maximum number of neighbor entries that can be learned by a VLANIF interface dynamically using the ipv6 nd neighbor-limit command. The ipv6 nd neighbor-limit command takes effect only on a VLANIF interface.