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IPv6 VRRP configuration examples
Single VRRP group configuration example
Network requirements
Switch A and Switch B form a VRRP group, and use the virtual IP addresses 1::10/64 and FE80::10
to provide gateway service for the subnet where Host A resides, as shown in Figure 40.
Ho
st A learns 1::10/64 as its default gateway from RA messages sent by the switches.
Switch A operates as the master to forward packets from Host A to Host B. When Switch A fails,
Switch B takes over to forward packets for Host A.
Figure 40 Network diagram
Configuration procedure
1. Configure Switch A:
# Configure VLAN 2.
<SwitchA> system-view
[SwitchA] vlan 2
[SwitchA-vlan2] port ten-gigabitethernet 1/0/5
[SwitchA-vlan2] quit
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ipv6 address fe80::1 link-local
[SwitchA-Vlan-interface2] ipv6 address 1::1 64
# Create VRRP group 1, and set its virtual IPv6 addresses to FE80::10 and 1::10.
[SwitchA-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip fe80::10 link-local
[SwitchA-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip 1::10
# Assign Switch A a higher priority than Switch B in VRRP group 1, so Switch A can become the
master.
[SwitchA-Vlan-interface2] vrrp ipv6 vrid 1 priority 110
# Configure Switch A to operate in preemptive mode, so it can become the master whenever it
operates correctly. Set the preemption delay to 500 centiseconds to avoid frequent status
switchover.
[SwitchA-Vlan-interface2] vrrp ipv6 vrid 1 preempt-mode delay 500
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