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DES-7200 Configuration Guide Chapter 1 VRRP Configuration
1-21
vrrp ipv6 1 timers advertise 3
！
# Configure VRRP 1 to track interface FastEthernet 0/2
vrrp ipv6 1 track FastEthernet 0/2 50
# Configure the Accept_Mode of IPv6 VRRP
vrrp ipv6 1 accept_mode
!
!
Configure Switch B:
!
!
# Create a VRRP group 1 and set its virtual IPv6 address to FE80::1 and 2000::1
interface FastEthernet 0/0
no switchport
ipv6 address 2000::3/64
！
# Create a VRRP group 1 and set its virtual IPv6 address to FE80::1 and 2000::1
interface FastEthernet 0/0
vrrp 1 ipv6 FE80::1
vrrp 1 ipv6 2000::1
# Configure the priority of Switch B in VRRP group as 100
vrrp ipv6 1 priority 100
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# Adjust the advertisement interval of VRRP group to 3s
vrrp ipv6 1 timers advertise 3
# Configure the Accept_Mode of IPv6 VRRP
vrrp ipv6 1 accept_mode
!
!
!
We can see that Switch A and Switch B are in IPv6 VRRP backup group 1 pointing to
the same IPv6 address (2000::1) of virtual router and operating in VRRP preemptive
mode. Since the priority of Switch A in IPv6 VRRP backup group is 120 and the priority
of Switch B in VRRP backup group is 100 (default value), Switch A will act as the
Master router of IPv6 VRRP under normal conditions. If Switch A as the Master device
detects that interface FastEthernet 0/2 is not available, it will reduce its priority in
VRRP backup group by 50 (the priority becomes 70). In this way, Switch B becomes
the Master device. After this, if Switch A detects that its interface of FastEthernet 0/2
becomes available again, it will increase its priority by 50 (the priority becomes 120
again), so that Switch A will become the Master device again.
1.5.2.4 Verification
After configuration, execute "show ipv6 vrrp 1" command to view VRRP configurations.