S5120设备IPV6接口无法up

不涉及

接口下放通了vlan212，int vlan 212配置了ipv4和ipv6地址，发现ipv4可以正常ping通对端，但是ipv6无法ping通，发现display ipv6 interface brief 对应虚接口状态是down 的

[S5120]dis ipv6 int brief 
*down: administratively down 
(s): spoofing 
Interface                                Physical   Protocol   IPv6 Address 
M-GigabitEthernet0/0/0                     down       down     Unassigned 
Vlan-interface1                            up         down     Unassigned 
Vlan-interface200                          up         down     Unassigned 
Vlan-interface212                          up         down     100::100 [TENTATIVE] 
Vlan-interface4094                         up         down     Unassigned 
interface Vlan-interface212 
 ipv6 address 100::100/64 
 ip address 192.168.212.100 255.255.255.0

这台S5120设备是V5的，需要使能ipv6，才能支持ipv6功能，即需要全局敲一下ipv6

全局使能ipv6后，解决

[S5120]ipv6
[S5120]dis ipv6 int brief
*down: administratively down
(s): spoofing
Interface                                Physical   Protocol   IPv6 Address
M-GigabitEthernet0/0/0                     down       down     Unassigned
Vlan-interface1                            up         down     Unassigned
Vlan-interface200                          up         down     Unassigned
Vlan-interface212                          up         up       100::100
Vlan-interface4094                         up         down     Unassigned