H3C Technologies H3C SR8800 - Manual (Page 95)

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Figure 26 Network diagram
Configuration procedure
1. Configure Router A:
<RouterA> system-view
[RouterA] ipv6
[RouterA] interface GigabitEthernet 4/1/1
[RouterA-GigabitEthernet4/1/1] ipv6 address fe80::1 link-local
[RouterA-GigabitEthernet4/1/1] ipv6 address 1::1 64
# Create a VRRP group 1 and set its virtual IPv6 addresses to FE80::10 and 1::10.
[RouterA-GigabitEthernet4/1/1] vrrp ipv6 vrid 1 virtual-ip fe80::10 link-local
[RouterA-GigabitEthernet4/1/1] vrrp ipv6 vrid 1 virtual-ip 1::10
# Configure the priority of Router A in VRRP group 1 as 110, which is higher than that of Router
B (100), so that Router A can become the master.
[RouterA-GigabitEthernet4/1/1] vrrp ipv6 vrid 1 priority 110
# Set the authentication mode of VRRP group 1 as simple and authentication key to hello.
[RouterA-GigabitEthernet4/1/1] vrrp ipv6 vrid 1 authentication-mode simple hello
# Set the interval on Router A for sending VRRP advertisements to 500 centiseconds.
[RouterA-GigabitEthernet4/1/2] vrrp ipv6 vrid 1 timer advertise 500
# Configure Router A to work in preemptive mode, so that it can become the master whenever it
works normally; configure the preemption delay as five seconds to avoid frequent status
switchover.
[RouterA-GigabitEthernet4/1/1] vrrp ipv6 vrid 1 preempt-mode timer delay 5
# Set interface GigabitEthernet 4/1/2 on Router A to be tracked, and configure the amount by
which the priority value decreases to be more than 10 (30 in this example), so that when
GigabitEthernet 4/1/2 fails, the priority of Router A in VRRP group 1 decreases to a value lower
than 100 and thus Router B can become the master.
[RouterA-GigabitEthernet4/1/1] vrrp ipv6 vrid 1 track interface GigabitEthernet 4/1/1
reduced 30
# Enable Router A to send RA messages, so that Host A can learn the default gateway address.
[RouterA-GigabitEthernet4/1/1] undo ipv6 nd ra halt
2. Configure Router B:
Host A
Router A
Router B
Virtual IPv6 address:
FE80::10
1::10/64
GE4/1/1
FE80::1
1::1/64
GE4/1/1
FE80::2
1::2/64
Host B
Gateway:
1::10/64
GE4/1/2
Internet