華為CSS配置DAD

Huawei CSS（CloudEngine Switch）提供了動態地址發現（DAD）功能，該功能可以從上游交換機或路由器收到RA（路由器廣告）包并在本地配置IPv6地址。

為了使DAD正常工作，您需要進行如下配置：

[DAD激活]
ipv6 nd dad enable
[DAD策略]
ipv6 nd dad retry 1
ipv6 nd dad interval 1000
ipv6 nd dad max-dad-attempts 3
[DAD全局參數]
ipv6 nd dad global max-dad-attempts 3
ipv6 nd dad global dad-interval 1000
ipv6 nd dad global dad-timeout 5000
ipv6 nd dad global dad-retransmission 5
ipv6 nd dad global dad-retrans-increment 5
ipv6 nd dad global dad-retrans-upper-limit 30
[DAD接口參數]
interface XGigabitEthernet0/0/1
ipv6 nd dad max-dad-attempts 3
ipv6 nd dad interval 1000
ipv6 nd dad timeout 5000
[查看DAD狀態]
display ipv6 nd dad simple
[查看DAD事件]
display ipv6 nd dad record

如上代碼所示，您可以通過配置激活DAD并設置策略來為您的網絡增加更好的IPv6地址配置機制。