Configuration procedure

# Enable SAVI.

<SwitchB> system-view
[SwitchB] ipv6 savi strict

# Enable IPv6.

[SwitchB] ipv6

# Assign Ethernet 1/0/1, Ethernet 1/0/2, and Ethernet 1/0/3 to VLAN 10.

[SwitchB] vlan 10
[SwitchB-vlan10] port ethernet 1/0/1 ethernet 1/0/2 ethernet 1/0/3
[SwitchB-vlan10] quit

# Enable global unicast address ND snooping and link-local address ND snooping.

[SwitchB] ipv6 nd snooping enable link-local
[SwitchB] ipv6 nd snooping enable global
[SwitchB] vlan 10
[SwitchB-vlan10] ipv6 nd snooping enable

# Enable ND detection.

[SwitchB-vlan10] ipv6 nd detection enable
[SwitchB-vlan10] quit

# Enable DHCPv6 snooping.

[SwitchB] ipv6 dhcp snooping enable

# Configure uplink port Ethernet 1/0/3 as an ND trusted port.

[SwitchB] interface ethernet 1/0/3
[SwitchB-Ethernet1/0/3] ipv6 nd detection trust
[SwitchB-Ethernet1/0/3] quit

# Configure the dynamic IPv6 source guard binding function on downlink ports Ethernet 1/0/1 and Ethernet 1/0/2.

[SwitchB] interface ethernet 1/0/1
[SwitchB-Ethernet1/0/1] ipv6 verify source ipv6-address mac-address
[SwitchB-Ethernet1/0/1] quit
[SwitchB] interface ethernet 1/0/2
[SwitchB-Ethernet1/0/2] ipv6 verify source ipv6-address mac-address
[SwitchB-Ethernet1/0/2] quit