H3C Technologies H3C S6800 Series Switches - Manual (Page 47)

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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 17 Network diagram
Configuration procedure
1. Configure Switch A:
# Configure VLAN 2.
<SwitchA> system-view
[SwitchA] vlan 2
[SwitchA-vlan2] port fortygige 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, and set the preemption delay to 5 seconds to avoid frequent status switchover.
[SwitchA-Vlan-interface2] vrrp ipv6 vrid 1 preempt-mode delay 5
# Enable Switch A to send RA messages, so Host A can learn the default gateway address.
[SwitchA-Vlan-interface2] undo ipv6 nd ra halt
2. Configure Switch B:
# Configure VLAN 2.
<SwitchB> system-view
[SwitchB] vlan 2
[SwitchB-vlan2] port fortygige 1/0/5
[SwitchB-vlan2] quit
[SwitchB] interface vlan-interface 2
Host A
Switch A
Switch B
Virtual IPv6 address:
FE80::10
1::10/64
FGE1/0/5
Vlan-int2
FE80::1
1::1/64
Host B
Gateway:
1::10/64
Internet
FGE1/0/5
Vlan-int2
FE80::2
1::2/64