H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 43)

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Configuring the backup VLAN
After you specify a VLAN as a backup VLAN, the interfaces added to the VLAN can serve as stateful
failover interfaces to transmit stateful failover packets.
To configure a backup VLAN:
Step Command Remarks
1. Enter system view. system-view N/A
2. Create a VLAN and assign
interfaces to the VLAN.
See Layer 2 Configuration Guide. N/A
3. Return to system view. quit N/A
4. Specify the VLAN as a
backup VLAN.
dhbk vlan vlan-id Not specified by default.
NOTE:
•
The device identifies stateful failover packets by the VLAN tag and private protocol number, and
broadcasts them in the backup VLAN to the peer. Do not configure other services for the backup VLAN
(such as MAC VLAN or Voice VLAN); otherwise, the operation of stateful failover may be affected.
• The interfaces assigned to a backup VLAN can forward other packets besides stateful failover packets.
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 examples
For portal stateful failover configuration examples, see Security Configuration Guide.
Configuration guidelines
Stateful failover can be implemented only between two devices rather than among more than two
devices.