H3C Technologies H3C SecBlade LB Cards - Manual (Page 90)

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To configure a failover interface and a backup VLAN:
Step Command Remarks
1. Enter system view. system-view N/A
2. Configure a failover interface
and a backup VLAN. dhbk interface interface-list vlan
vlan-id By default, no failover interface or
backup VLAN is specified.
Displaying and maintaining stateful failover
Task Command Remarks
Display the running status and
related information of stateful
failover.
display dhbk status [ | { begin |
exclude | include }
regular-expression ]
Available in any view.
Stateful failover configuration example
Network requirements
In Figure 40 , Device A and Device B serve as the internal gateways of an enterprise network. LB A and
LB B, respectively attached to Device A and Device B, provide AAA authentication for internal users.
Configure stateful failover between LB A and LB B. When one device fails, the other device takes over the
services to ensure service continuity.
Figure 40 Network diagram
Configuration procedure
1. Configure LB A:
# Create VLAN 100.
system-view
[LBA] vlan 100
Internet
Internal
network
Device A Device B
GE1/2 GE1/2 GE1/1 GE1/1
VLAN 100
GE1/2
LB A LB B
GE0/1 GE0/1
Failover link Failover link
VLAN 100 VLAN 100