H3C Technologies H3C S12500 Series Switches User Manual
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# Set the priority of Switch B in VRRP group 1 to 110, which is higher than that of Switch C (100)
so that Switch B can become the master when Switch A fails.
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 priority 110
# Set Switch B to operate in preemptive mode and set the preemption delay to 5 seconds.
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 preempt-mode timer delay 5
# Enable Switch B to send RA messages so that hosts on network segment 1::/64 can learn the
default gateway address.
[SwitchB-Vlan-interface2] undo ipv6 nd ra halt
[SwitchB-Vlan-interface2] quit
# Create track entry 1 to associate with the physical status of VLAN-interface 3 on Switch B. When
the track entry becomes negative, it means that the interface fails.
[SwitchB] track 1 interface vlan-interface 3
# Configure VF tracking to monitor track entry 1 and specify the value by which the weight
decreases, making the weight of Switch B decrease by more than 245 (250 in this example) when
track entry 1 turns to negative. In such a case, another router with a higher weight can take over.
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 weight track 1 reduced 250
3.
Configure Switch C:
# Configure VLAN 2.
<SwitchC> system-view
[SwitchC] vlan 2
[SwitchC-vlan2] port gigabitethernet 3/0/5
[SwitchC-vlan2] quit
# Configure VRRP to operate in load balancing mode.
[SwitchC] vrrp mode load-balance
# Create VRRP group 1 and configure its virtual IPv6 addresses as FE80::10 and 1::10.
[SwitchC] interface vlan-interface 2
[SwitchC-Vlan-interface2] ipv6 address fe80::3 link-local
[SwitchC-Vlan-interface2] ipv6 address 1::3 64
[SwitchC-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip fe80::10 link-local
[SwitchC-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip 1::10
# Set Switch C to operate in preemptive mode and set the preemption delay to 5 seconds.
[SwitchC-Vlan-interface2] vrrp ipv6 vrid 1 preempt-mode timer delay 5
# Enable Switch C to send RA messages, so that hosts on network segment 1::/64 can learn the
default gateway address.
[SwitchC-Vlan-interface2] undo ipv6 nd ra halt
[SwitchC-Vlan-interface2] quit
# Create track entry 1 to associate with the physical status of VLAN-interface 3 on Switch C. When
the track entry becomes negative, it means that the interface fails.
[SwitchC] track 1 interface vlan-interface 3
# Configure VF tracking to monitor track entry 1 and specify the value by which the weight
decreases, making the weight of Switch C decrease by more than 245 (250 in this example) when
track entry 1 turns to negative. In such a case, another router with a higher weight can take over.
[SwitchC] interface vlan-interface 2
[SwitchC-Vlan-interface2] vrrp ipv6 vrid 1 weight track 1 reduced 250
4.
Verify the configuration: