H3C Technologies H3C SecBlade LB Cards User Manual
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3.
Configure LB C:
# Configure VRRP to operate in load balancing mode.
[LBC] vrrp mode load-balance
# Create VRRP group 1 and configure its virtual IPv6 addresses as FE80::10 and 1::10.
[LBC] interface gigabitethernet0/1
[LBC-GigabitEthernet0/1] ipv6 address fe80::3 link-local
[LBC-GigabitEthernet0/1] ipv6 address 1::3 64
[LBC-GigabitEthernet0/1] vrrp ipv6 vrid 1 virtual-ip fe80::10 link-local
[LBC-GigabitEthernet0/1] vrrp ipv6 vrid 1 virtual-ip 1::10
# Set LB C to operate in preemptive mode and set the preemption delay to five seconds.
[LBC-GigabitEthernet0/1] vrrp ipv6 vrid 1 preempt-mode timer delay 5
# Enable LB C to send RA messages, so that hosts in network segment 1::/64 can learn the default
gateway address.
[LBC-GigabitEthernet0/1] undo ipv6 nd ra halt
[LBC-GigabitEthernet0/1] quit
# Create track entry 1 to associate with the physical status of GigabitEthernet 0/2 on LB C. When
the track entry becomes negative, it means that the interface fails.
[LBC] track 1 interface gigabitethernet0/2
# Configure VF tracking to monitor track entry 1 and specify the value by which the weight
decreases, making the weight of LB 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.
[LBC] interface gigabitethernet0/1
[LBC-GigabitEthernet0/1] vrrp ipv6 vrid 1 weight track 1 reduced 250
4.
Verify the configuration:
After the configuration, Host A can ping external networks successfully. To verify your
configuration, use the display vrrp ipv6 verbose command.
# Display the detailed information about VRRP group 1 on LB A.
[LBA-GigabitEthernet0/1] display vrrp ipv6 verbose
IPv6 Standby Information:
Run Mode : Load Balance
Run Method : Virtual MAC
Total number of virtual routers : 1
Interface GigabitEthernet0/1
VRID : 1 Adver Timer : 100
Admin Status : Up State : Master
Config Pri : 120 Running Pri : 120
Preempt Mode : Yes Delay Time : 5
Auth Type : None
Virtual IP : FE80::10
1::10
Member IP List : FE80::1 (Local, Master)
FE80::2 (Backup)
FE80::3 (Backup)
Forwarder Information: 3 Forwarders 1 Active
Config Weight : 255
Running Weight : 255