H3C Technologies H3C S7500E Series Switches User Manual
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fails, the priority of Switch A in VRRP group 1 decreases to a value lower than 100 and thus
Switch B can become the master.
[SwitchA-Vlan-interface2] vrrp ipv6 vrid 1 track interface vlan-interface 3 reduced
30
# Enable Switch A to send RA messages, so that Host A can learn the default gateway address.
[SwitchA-Vlan-interface2] undo ipv6 nd ra halt
2) Configure Switch B
# Configure VLAN 2.
[SwitchB] ipv6
[SwitchB] vlan 2
[SwitchB-vlan2] port gigabitethernet 2/0/5
[SwitchB-vlan2] quit
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] ipv6 address fe80::2 link-local
[SwitchB-Vlan-interface2] ipv6 address 1::2 64
# Create a VRRP group 1 and set its virtual IPv6 addresses to FE80::10 and 1::10.
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip fe80::10 link-local
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 virtual-ip 1::10
# Set the authentication mode for VRRP group 1 to simple and authentication key to hello.
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 authentication-mode simple hello
# Set the VRRP advertisement interval to 400 centiseconds.
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 timer advertise 400
# Configure Switch B to work in preemptive mode, so that Switch B can become the master
after the priority of Switch A decreases to a value lower than 100. Configure the preemption
delay as five seconds to avoid frequent status switchover.
[SwitchB-Vlan-interface2] vrrp ipv6 vrid 1 preempt-mode timer delay 5
# Enable Switch B to send RA messages, so that Host A can learn the default gateway address.
[SwitchB-Vlan-interface2] undo ipv6 nd ra halt
3) Verify
the
configuration
After the configuration, Host B can be pinged successfully on Host A. To verify the configuration,
use the display vrrp ipv6 verbose command.
# Display the detailed information of VRRP group 1 on Switch A.
[SwitchA-Vlan-interface2] display vrrp ipv6 verbose
IPv6 Standby Information:
Run Mode : Standard
Run Method : Virtual MAC
Total number of virtual routers : 1
Interface Vlan-interface2
VRID : 1 Adver Timer : 400
Admin Status : Up State : Master
Config Pri : 110 Running Pri : 110
Preempt Mode : Yes Delay Time : 5
Auth Type : Simple Key : hello
Virtual IP : FE80::10
1::10
Virtual MAC : 0000-5e00-0201